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1

Advance View Proofs Thermodynamic Description of the Mg-Mn, Al-Mn and Mg-Al-Mn Systems  

E-Print Network [OSTI]

Advance View Proofs Thermodynamic Description of the Mg-Mn, Al-Mn and Mg-Al-Mn Systems Using-consistent thermodynamic model of the Mg-Mn, Al-Mn and Mg-Al-Mn systems has been developed. The major difference between work on the Al-Mn system that uses the same model for the liquid phase reveals that better agreement

Medraj, Mamoun

2

Magnetism of Al-Mn quasicrystals  

Science Journals Connector (OSTI)

The effect of symmetry and concentration of Mn on the magnetism of Al-Mn quasicrystals has been investigated through self-consistent density-functional calculations using molecular clusters and supercell band-structure schemes. A single Mn atom surrounded by 54 Al atoms in an icosahedral or a cuboctahedral structure is found to be nonmagnetic. However, as the Mn concentration is increased, moments develop on Mn sites whose magnitude and coupling depend on their location.

Feng Liu; S. N. Khanna; L. Magaud; P. Jena; V. de Coulon; F. Reuse; S. S. Jaswal; X.-G. He; F. Cyrot-Lackman

1993-07-01T23:59:59.000Z

3

Thermal behavior of Al/MoO3 xerogel nanocomposites  

Science Journals Connector (OSTI)

Abstract Sol–gel process using molybdenum alkoxides was employed to prepare Al/MoO3 xerogel nanocomposites as a thermite with better performance by improvement of interfacial contact area between the oxidizer and fuel. Micromorphology and thermite reaction characteristics of Al/MoO3 xerogel nanocomposites were analyzed by scanning electron microscopy (SEM) and thermogravimetry/differential scanning calorimetry (TG/DSC), respectively. In the present Al/MoO3 xerogel system, it was found that exothermic enthalpy increases as the Al/Mo mole ratio increases and then decreases when Al/Mo mole ratio is larger than 6 indicating that optimum mole ratio of Al/Mo is 6 with reaction enthalpy of 420.58 J/g.

Han-Su Seo; Jae-Kyeong Kim; Jun-Woo Kim; Hyoun-Soo Kim; Kee-Kahb Koo

2014-01-01T23:59:59.000Z

4

Modelling Al and Mn in the open ocean  

E-Print Network [OSTI]

Modelling Al and Mn in the open ocean Marco van Hulten*, Alessandro Tagliabue, Jean-Claude Dutay van Hulten: Modelling Al and Mn in the open ocean 1 #12;Outline Introduction Model of aluminium Constraining dust flux Model of manganese Conclusions Marco van Hulten: Modelling Al and Mn in the open ocean 2

Haak, Hein

5

Policy Flash 2013-71 AL 2013-11 NON M&O CONTRACTOR BUSINESS SYSTEMS...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

71 AL 2013-11 NON M&O CONTRACTOR BUSINESS SYSTEMS CLAUSES FOR SECTION H Policy Flash 2013-71 AL 2013-11 NON M&O CONTRACTOR BUSINESS SYSTEMS CLAUSES FOR SECTION H Policy Flash - AL...

6

Policy Flash 2013-71 AL 2013-11 NON M&O CONTRACTOR BUSINESS SYSTEMS...  

Broader source: Energy.gov (indexed) [DOE]

1 AL 2013-11 NON M&O CONTRACTOR BUSINESS SYSTEMS CLAUSES FOR SECTION H Policy Flash 2013-71 AL 2013-11 NON M&O CONTRACTOR BUSINESS SYSTEMS CLAUSES FOR SECTION H Policy Flash - AL...

7

Investigation of the reaction zone between TiAl and Mo  

SciTech Connect (OSTI)

Pure Mo was incorporated in TiAl matrix via two different routes: (1) hot pressing of alternately sandwiched Ti-Al sheets and Mo foils; and (2) coextrusion and heat treatment of Ti-Al green compact and Mo rod. The reaction zone between TiAl and Mo is found to contain two intermetallic phases: {beta}-(Mo,Ti)Al and {rho}-(Mo,Ti){sub 3}Al. The {beta}-{rho} boundary is incoherent, whereas the TiAl-{beta} and {rho}-Mo boundaries are semicoherent. The reaction zone grows with increasing heat-treatment time in a parabolic form. The incorporated Mo exhibits lower hardness than the TiAl matrix, implying that ductilizing and toughening of TiAl by introducing Mo as a ductile reinforcement are possible.

Hsu, F.Y.; Klaar, H.J. [Aachen Univ. of Technology (Germany); Wang, G.X. [Zhejiang Univ., Hangzhou (China). Dept. of Materials Science and Engineering; Pirwitz, F. [GKSS Research Center, Geesthacht (Germany). Inst. for Materials Research

1996-08-01T23:59:59.000Z

8

High-Energy Cathode Materials (Li2MnO3–LiMO2) for Lithium-Ion Batteries  

Science Journals Connector (OSTI)

High-Energy Cathode Materials (Li2MnO3–LiMO2) for Lithium-Ion Batteries ... Fabrication of Nitrogen-Doped Holey Graphene Hollow Microspheres and Their Use as an Active Electrode Material for Lithium Ion Batteries ... Li-rich materials are considered the most promising for Li-ion battery cathodes, as high energy densities can be achieved. ...

Haijun Yu; Haoshen Zhou

2013-03-28T23:59:59.000Z

9

Phase Development in a U-7 wt.% Mo vs. Al-7 wt.% Ge Diffusion Couple  

SciTech Connect (OSTI)

Fuel development for the Reduced Enrichment for Research and Test Reactors (RERTR) program has demonstrated that U-Mo alloys in contact with Al develop interaction regions with phases that have poor irradiation behavior. The addition of Si to the Al has been considered with positive results. Compositional modification to replace Si with Ge is now under evaluation to attempt to further improve irradiation behavior. In this study, the microstructural and phase development of a diffusion couple of U-7 wt.% Mo in contact with Al-7 wt.% Ge was examined by transmission electron microscopy, scanning electron microscopy and energy dispersive spectroscopy. The interdiffusion zone developed a microstructure that included the cubic-UGe3 phase and amorphous phases. The UGe3 phase was observed with and without Mo and Al solid solutioning developing a (U,Mo)(Al,Ge)3 phase.

E. Perez; D.D. Keiser, Jr.; Y.H. Sohn

2013-10-01T23:59:59.000Z

10

Structure of Al-Mn-Cr-Si quasicrystals studied by pulsed neutron scattering  

Science Journals Connector (OSTI)

The atomic structure of rapidly quenched quasicrystals, Al80Mn20, Al75Mn20Si5, and Al75Mn15Cr5Si5, was studied by pulsed neutron scattering. The pair distribution function was obtained by a direct Fourier transformation of the structure factor, and by assuming isomorphous substitution of Cr for Mn the differential distribution function (DDF) was determined. The addition of Si was found to increase the medium-range order significantly. The DDF from Mn atoms indicates the presence of a quasicrystalline substructure which is occupied both by Mn and Al atoms. The atomic structure of these solids, therefore, is significantly different from that of quasicrystalline Pd58.8U20.6Si20.6.

S. Nanao; W. Dmowski; T. Egami; J. W. Richardson; Jr.; J. D. Jorgensen

1987-01-15T23:59:59.000Z

11

Manganese valence and coordination structure in Mn,Mg-codoped {gamma}-AlON green phosphor  

SciTech Connect (OSTI)

The valence and coordination structure of manganese in a Mn,Mg-codoped {gamma}-AlON spinel-type oxynitride green phosphor were studied by synchrotron X-ray diffraction and absorption fine structure measurements. The absorption edge position of the XANES revealed the bivalency of Mn. Two cation sites are available in the spinel structure for cation doping: a tetrahedral site and an octahedral site. The pre-edge of the XANES and the distance to the nearest neighbor atoms obtained from the EXAFS measurement showed that Mn was situated at the tetrahedral site. Rietveld analysis showed that the vacancy occupied the octahedral site. The preferential occupation of the tetrahedral site by Mn and the roles of N and Mg are discussed in relation to the spinel crystal structure. - Graphical Abstract: Fourier transform of EXAFS of Mn K-edge for Mn,Mg-codoped green phosphor and Mn coordination structure. Highlights: Black-Right-Pointing-Pointer Mn, Mg-codoped {gamma}-AlON green phosphor for white LED. Black-Right-Pointing-Pointer The valence of Mn is divalent. Black-Right-Pointing-Pointer Mn occupies the tetrahedral site in the spinel structure.

Takeda, Takashi, E-mail: TAKEDA.Takashi@nims.go.jp [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Xie, Rong-Jun; Hirosaki, Naoto [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Matsushita, Yoshitaka [National Institute for Materials Science (NIMS), NIMS-SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan)] [National Institute for Materials Science (NIMS), NIMS-SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan); Honma, Tetuso [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan)] [Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan)

2012-10-15T23:59:59.000Z

12

Improved performance of U-Mo dispersion fuel by Si addition in Al matrix.  

SciTech Connect (OSTI)

The purpose of this report is to collect in one publication and fit together work fragments presented in many conferences in the multi-year time span starting 2002 to the present dealing with the problem of large pore formation in U-Mo/Al dispersion fuel plates first observed in 2002. Hence, this report summarizes the excerpts from papers and reports on how we interpreted the relevant results from out-of-pile and in-pile tests and how this problem was dealt with. This report also provides a refined view to explain in detail and in a quantitative manner the underlying mechanism of the role of silicon in improving the irradiation performance of U-Mo/Al.

Kim, Y S; Hofman, G L [Nuclear Engineering Division

2011-06-01T23:59:59.000Z

13

Table 2 -Lime use and practices on Corn, major producing states, 2001 CO GA IL IN IA KS KY MI MN MO NE NY NC ND OH PA SD TX WI Area  

E-Print Network [OSTI]

Table 2 - Lime use and practices on Corn, major producing states, 2001 CO GA IL IN IA KS KY MI MN.7 Table 2 - Lime use and practices on Corn, major producing states, 2000 CO IL IN IA KS KY MI MN MO NE NY use and practices on Corn, major producing states, 1999 CO IL IN IA KS KY MI MN MO NE NC OH SD TX WI

Kammen, Daniel M.

14

Thermodynamic modeling and experimental validation of the Fe-Al-Ni-Cr-Mo alloy system  

SciTech Connect (OSTI)

NiAl-type precipitate-strengthened ferritic steels have been known as potential materials for the steam turbine applications. In this study, thermodynamic descriptions of the B2-NiAl type nano-scaled precipitates and body-centered-cubic (BCC) Fe matrix phase for four alloys based on the Fe-Al-Ni-Cr-Mo system were developed as a function of the alloy composition at the aging temperature. The calculated phase structure, composition, and volume fraction were validated by the experimental investigations using synchrotron X-ray diffraction and atom probe tomography. With the ability to accurately predict the key microstructural features related to the mechanical properties in a given alloy system, the established thermodynamic model in the current study may significantly accelerate the alloy design process of the NiAl-strengthened ferritic steels.

Teng, Zhenke [ORNL; Zhang, F [CompuTherm LLC, Madison, WI; Miller, Michael K [ORNL; Liu, Chain T [Hong Kong Polytechnic University; Huang, Shenyan [ORNL; Chou, Y.T. [Multi-Phase Services Inc., Knoxville; Tien, R [Multi-Phase Services Inc., Knoxville; Chang, Y A [ORNL; Liaw, Peter K [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

15

Chobert MN et al LIVER PRECURSOR CELLS INCREASE HEPATIC FIBROSIS INDUCED BY CHRONIC  

E-Print Network [OSTI]

by chronic carbon tetrachloride (CCl4) administration for 6 weeks, in combination with chronic; CCl4, carbon tetrachloride; CK19, cytokeratin 19; CCR2, chemokine C-C motif receptor 2; EMTChobert MN et al LIVER PRECURSOR CELLS INCREASE HEPATIC FIBROSIS INDUCED BY CHRONIC CARBON

Boyer, Edmond

16

Evolution of the composition and structure of cleaved and heat-treated icosahedral Al-Pd-Mn quasicrystal surfaces  

Science Journals Connector (OSTI)

We investigated the changes in composition and structure induced by heat treatment of cleaved fivefold icosahedral Al-Pd-Mn quasicrystal surfaces by scanning electron microscopy and calibrated Auger electron spectroscopy. With increasing temperature we observed five different composition ranges of the surface coupled with distinct changes in the surface morphology. The changes in composition can be explained by successive evaporation and diffusion processes occurring with increasing temperatures. First, Mn evaporates from the uppermost surface layer, then Al evaporation starts and induces a further Mn evaporation leading to an enrichment in Pd. The enrichment is reduced by Mn diffusion from the bulk, Al diffusion from the bulk, and probably simultaneously occurring Pd desorption. Finally, a recrystallization of the surface is induced by the full diffusive mobility of all elements and preferential evaporation of Mn and to a lesser degree of Al. We also discuss the signature of the bonding configuration of Al in the Auger spectra of all investigated compositions.

Ph. Ebert, F. Kluge, B. Grushko, and K. Urban

1999-07-01T23:59:59.000Z

17

Characterization of Al-Mn particles in AZ91D investment castings  

SciTech Connect (OSTI)

Manganese is currently added to Mg-Al alloys in order to improve the corrosion behavior of cast components. A part of this manganese is dissolved in the magnesium matrix and the balance is found as fine Al(Mn,Fe) particles dispersed within castings. For AZ91D specimens prepared using the plaster mould investment casting process, these particles were observed in very large quantity at the surface of castings. These particles were characterized by scanning electron microscopy and electron probe microanalysis. It was found that they consist of Al{sub 8}Mn{sub 5} phase and that their morphology and size depend on local solidification conditions. Their presence at the surface of the castings is related to low solidification rates and reduced thermal gradients at the mould/metal interface.

Lun Sin, S. [Department of Mining, Metallurgical and Materials Engineering, Laval University, Quebec, Quebec, G1K 7P4 (Canada); Dube, D. [Department of Mining, Metallurgical and Materials Engineering, Laval University, Quebec, Quebec, G1K 7P4 (Canada)], E-mail: dominique.dube@gmn.ulaval.ca; Tremblay, R. [Department of Mining, Metallurgical and Materials Engineering, Laval University, Quebec, Quebec, G1K 7P4 (Canada)

2007-10-15T23:59:59.000Z

18

Evaluation of Pre-sulfided NiMo/?-Al2O3 for Hydrodeoxygenation of Microalgae Oil to Produce Green-diesel  

Science Journals Connector (OSTI)

Evaluation of Pre-sulfided NiMo/?-Al2O3 for Hydrodeoxygenation of Microalgae Oil to Produce Green-diesel ... Energy Fuels, Just Accepted Manuscript ...

Lin Zhou; Adeniyi Lawal

2014-12-05T23:59:59.000Z

19

Interaction between (La, Sr)MnO3 cathode and Ni–Mo–Cr metallic interconnect with suppressed chromium vaporization for solid oxide fuel cells  

Science Journals Connector (OSTI)

Interaction between (La0.8Sr0.2)0.90MnO3 (LSM) cathode and newly developed Ni–Mo–Cr metallic interconnect is investigated at 900 °C under operation conditions of solid oxide fuel cells (SOFCs). The results show that chromium deposition on the LSM cathodes in the presence of Ni–Mo–Cr interconnect is remarkably reduced as compared to that in the presence of a conventional Fe–Cr metallic interconnect (RA446). In contact with the Ni–Mo-Cr interconnect the overpotential, ?, for the O2 reduction reaction on LSM cathode decreased from 529 to 111 mV during the 1200 min current passage at 200 mA/cm2. In contrast, ? increased from 464 to 561 mV for the reaction in the presence of a RA446 interconnect. The decrease in ? clearly indicates that chromium poisoning effect of the Ni–Mo–Cr interconnect is also significantly suppressed as compared to that with conventional Fe–Cr interconnect materials. The suppressed Cr deposition and poisoning effects observed on the LSM cathodes demonstrate promising potential of the Ni–Mo–Cr alloy as new interconnect materials with significant suppressed chromium vaporization and deposition for SOFCs.

Xinbing Chen; Bin Hua; Jian Pu; Jian Li; Lan Zhang; San Ping Jiang

2009-01-01T23:59:59.000Z

20

Microstructural Characterization of Irradiated U-7Mo/Al-5Si Dispersion to High Fission Density  

SciTech Connect (OSTI)

The fuel development program for research and test reactors calls for improved knowledge on the effect of microstructure on fuel performance in reactors. This work summarizes the recent TEM microstructural characterization of an irradiated U-7Mo/Al-5Si dispersion fuel plate (R3R050) irradiated in the Advanced Test Reactor (ATR) at Idaho National Laboratory to 5.2×1021 fissions/cm3. While a large fraction of the fuel grains is decorated with large bubbles, there is no evidence showing interlinking of these large bubbles at the specified fission density. The attachment of solid fission product precipitates to the bubbles is likely the result of fission product diffusion into these bubbles. The process of fission gas bubble superlattice collapse appears through bubble coalescence. The results are compared with the previous TEM work of the dispersion fuels irradiated to lower fission density from the same fuel plate.

J. Gan; B. D. Miller; D. D. Keiser, Jr.; A. B. Robinson; J. W. Madden; P. G. Medvedev; D. M. Wachs

2014-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al alloy with Ag and Mn additions  

SciTech Connect (OSTI)

The investigation of thermal, mechanical and magnetic behaviors of the Cu-11%Al, Cu-11%Al-3%Ag, Cu-11%Al-10%Mn and Cu-11%Al-10%Mn-3%Ag alloys was made using microhardness measurements, differential scanning calorimetry, X-ray diffractometry, scanning electron microscopy, energy dispersion X-ray spectroscopy and magnetic moment change with applied field measurement. The results indicated that the Mn addition changes the phase stability range, the microhardness values and makes undetectable the eutectoid reaction in annealed Cu-11%Al and Cu-11%Al-3%Ag alloys while the presence of Ag does not modify the phase transformation sequence neither microhardness values of the annealed Cu-11%Al and Cu-11%Al-10%Mn alloys, but it increases the magnetic moment of this latter at about 2.7 times and decreases the rates of eutectoid and peritectoid reactions of the former. - Highlights: Black-Right-Pointing-Pointer The microstructure of Cu-Al alloy is modified in the Ag presence. Black-Right-Pointing-Pointer ({alpha} + {gamma}) phase is stabilized down to room temperature when Ag is added to Cu-Al alloy. Black-Right-Pointing-Pointer Ag-rich phase modifies the magnetic characteristics of Cu-Al-Mn alloy.

Silva, R.A.G., E-mail: galdino.ricardo@gmail.com [Departamento de Ciencias Exatas e da Terra-UNIFESP, Diadema-SP (Brazil)] [Departamento de Ciencias Exatas e da Terra-UNIFESP, Diadema-SP (Brazil); Paganotti, A.; Gama, S. [Departamento de Ciencias Exatas e da Terra-UNIFESP, Diadema-SP (Brazil)] [Departamento de Ciencias Exatas e da Terra-UNIFESP, Diadema-SP (Brazil); Adorno, A.T.; Carvalho, T.M.; Santos, C.M.A. [Instituto de Quimica - UNESP, Araraquara-SP (Brazil)] [Instituto de Quimica - UNESP, Araraquara-SP (Brazil)

2013-01-15T23:59:59.000Z

22

Realization of Spin Gapless Semiconductors: The Heusler Compound Mn2CoAl  

Science Journals Connector (OSTI)

Recent studies have reported an interesting class of semiconductor materials that bridge the gap between semiconductors and half-metallic ferromagnets. These materials, called spin gapless semiconductors, exhibit a band gap in one of the spin channels and a zero band gap in the other and thus allow for tunable spin transport. Here, we report the first experimental verification of the spin gapless magnetic semiconductor Mn2CoAl, an inverse Heusler compound with a Curie temperature of 720 K and a magnetic moment of 2?B. Below 300 K, the compound exhibits nearly temperature-independent conductivity, very low, temperature-independent carrier concentration, and a vanishing Seebeck coefficient. The anomalous Hall effect is comparatively low, which is explained by the symmetry properties of the Berry curvature. Mn2CoAl is not only suitable material for room temperature semiconductor spintronics, the robust spin polarization of the spin gapless semiconductors makes it very promising material for spintronics in general.

Siham Ouardi; Gerhard H. Fecher; Claudia Felser; Jürgen Kübler

2013-03-05T23:59:59.000Z

23

The influence of aluminium content to the stacking fault energy in Fe-Mn-Al-C alloy system  

Science Journals Connector (OSTI)

Four Fe-30Mn-0.9C-XAl alloys are employed to investigate the influence of aluminium content to the stacking fault energy in Fe-Mn-Al-C alloy system. The range of aluminium content is zero to 8.47 wt%. ... on the ...

W. S. Yang; C. M. Wan

1990-03-01T23:59:59.000Z

24

Internal energy transfer phenomenon and light-emission properties of ?-LiAlO2 phosphor doped with Mn2+  

Science Journals Connector (OSTI)

?-LiAlO2:Mn2+...phosphor was synthesized using the cellulose-citric acid sol-gel method, and its light emission and energy transfer properties were investigated. Excitation and emission...2+...do...

Bai-Bin Wang; Chi-Fen Chang; Wein-Duo Yang

2013-07-01T23:59:59.000Z

25

JOANNES M.O et al. HLA polymorphism and sickle cell disease 1 Abstract: 150 words Text: 1988 words  

E-Print Network [OSTI]

JOANNES M.O et al. HLA polymorphism and sickle cell disease 1 Abstract: 150 words Text: 1988 words References: 23 (568 words) Table: 3 Title: Infectious complications in sickle cell disease and HLA 62 ­ Fax : 590 48 33 29 tmariann@univ-ag.fr Keywords: sickle cell, infection, polymorphism, genetic

Paris-Sud XI, Université de

26

Results of U-xMo (x=7, 10, 12 wt.%) Alloy versus Al-6061 Cladding Diffusion Couple Experiments Performed at 500, 550 and 600 Degrees C  

SciTech Connect (OSTI)

The Reduced Enrichment for Research and Test Reactors (RERTR) program has been developing low enrichment fuel systems encased in Al 6061 for use in research and test reactors. U–Mo alloys in contact with Al and Al alloys can undergo diffusional interactions that can result in the development of interdiffusion zones with complex fine-grained microstructures composed of multiple phases. A monolithic fuel currently being developed by the RERTR program has local regions where the U–Mo fuel plate is in contact with the Al 6061 cladding and, as a result, the program finds information about interdiffusion zone development at high temperatures of interest. In this study, the microstructural development of diffusion couples consisting of U-7wt.%Mo, U-10wt.%Mo, and U-12wt.%Mo vs. Al 6061 (or 6061 aluminum) cladding, annealed at 500, 550, 600 degrees C for 1, 5, 20, 24, or 132 hours, was analyzed by backscatter electron microscopy and x-ray energy dispersive spectroscopy on a scanning electron microscope. Concentration profiles were determined by standardized wavelength dispersive spectroscopy and standardless x-ray energy dispersive spectroscopy. The results of this work shows that the presence of surface layers at the U–Mo/Al 6061 interface can dramatically impact the overall interdiffusion behavior in terms of rate of interaction and uniformity of the developed interdiffusion zones. It further reveals that relatively uniform interaction layers with higher Si concentrations can develop in U–Mo/Al 6061 couples annealed at shorter times and that longer times at temperature result in the development of more non-uniform interaction layers with more areas that are enriched in Al. At longer annealing times and relatively high temperatures, U–Mo/Al 6061 couples can exhibit more interaction compared to U–Mo/pure Al couples. The minor alloying constituents in Al 6061 cladding can result in the development of many complex phases in the interaction layer of U–Mo/Al–6061 cladding couples, and some phases in the interdiffusion zones of U–Mo/Al–6061 cladding couples are likely similar to those observed for U–Mo/pure Al couples.

Emmanuel Perez; Dennis D. Keiser, Jr.; Yongho Sohn

2013-04-01T23:59:59.000Z

27

Evidence for a Cluster-Based Structure of AlPdMn Single Quasicrystals  

Science Journals Connector (OSTI)

For the first time quasicrystal surfaces produced by in situ cleavage in ultrahigh vacuum have been investigated by scanning tunneling microscopy. Twofold and fivefold surfaces of icosahedral AlPdMn single quasicrystals have been studied. The surfaces were found to be rough. Their structure is determined by cluster aggregates formed on the basis of an elementary cluster whose contrast behavior and diameter of about 1 nm point to the Mackay-type cluster. Crack propagation occurs along zones of lower strength between clusters. This supports the cluster approach to quasicrystal structure.

Ph. Ebert, M. Feuerbacher, N. Tamura, M. Wollgarten, and K. Urban

1996-10-28T23:59:59.000Z

28

Photodissociation measurements of bond dissociation energies: D0(Al2-Al), D0(TiO -Mn), and D0(V2 -V)  

E-Print Network [OSTI]

Photodissociation measurements of bond dissociation energies: D0(Al2-Al), D0(TiO -Mn), and D0(V2 -VV was obtained by adding the energy of the 4 A2 state to the measured predissociation threshold. For Ti studies may be used to measure bond lengths and deduce term symbols. As one proceeds to higher energies

Morse, Michael D.

29

Characterization of the interaction layer in diffusion couples U-7 wt.%Mo/Al 6061 alloy at 550 deg. C and 340 deg. C  

SciTech Connect (OSTI)

Solid state reaction between U-7 wt.%Mo and Al 6061 alloys at 550 deg. C and 340 deg. C was characterized in chemical diffusion couples made by Friction Stir Welding. Results were obtained from optical and scanning electron microscopy, electron probe microanalysis and X-ray diffraction. At 550 deg. C the interaction layer in {gamma}U(Mo)/Al 6061 is formed by U(Al,Si){sub 3} phase but when {gamma}U(Mo) cellular decomposition occurs, UAl{sub 3} and Al{sub 43}Mo{sub 4}U{sub 6} also appear in the interaction layer. At 340 deg. C the use of X-ray diffraction with synchrotron radiation made it possible to analyze the interaction layer. It was found that it is only formed by U{sub 3}Si{sub 5} phase with its cell volume enlarged respect to the original one.

Mirandou, M.I., E-mail: mirandou@cnea.gov.ar [Departamento Materiales, GAEN-GIDAT-CNEA, Av. Gral. Paz 1499, B1650KNA, San Martin (Argentina); Arico, S.F.; Balart, S.N. [Departamento Materiales, GAEN-GIDAT-CNEA, Av. Gral. Paz 1499, B1650KNA, San Martin (Argentina); Gribaudo, L.M. [Departamento Materiales, GAEN-GIDAT-CNEA, Av. Gral. Paz 1499, B1650KNA, San Martin (Argentina); Consejo Nacional de Investigaciones Cientificas y Tecnologicas, Avda. Rivadavia 1917, C1033AAJ, Buenos Aires (Argentina)

2009-08-15T23:59:59.000Z

30

Surface structures of cleaved icosahedral Al-Pd-Mn single quasicrystals after heat treatment  

Science Journals Connector (OSTI)

Surfaces produced by in situ cleavage fracture in ultrahigh vacuum of Czochralski-grown icosahedral Al-Pd-Mn single quasicrystals were investigated by scanning tunneling microscopy and by scanning electron microscopy at ambient temperature and after heat treatments of up to 670 °C. It is found that the evolution of the surface structure with temperature depends very sensitively on the local stoichiometry. In areas of suitable composition a cluster-subcluster structure similar to that observed at room temperature is maintained whereas in areas of slightly different composition a terrace structure atomically flat over relatively large areas develops. The results are discussed in the general framework provided by current models of quasicrystal formation.

Ph. Ebert, F. Yue, and K. Urban

1998-02-01T23:59:59.000Z

31

Unoccupied electronic states of icosahedral Al-Pd-Mn quasicrystals: Evidence of image potential resonance and pseudogap  

SciTech Connect (OSTI)

We study the unoccupied region of the electronic structure of the fivefold symmetric surface of an icosahedral (i) Al-Pd-Mn quasicrystal. A feature that exhibits parabolic dispersion with an effective mass of (1.15±0.1)me and tracks the change in the work function is assigned to an image potential resonance because our density functional calculation shows an absence of band gap in the respective energy region. We show that Sn grows pseudomorphically on i?Al?Pd?Mn as predicted by density functional theory calculations, and the energy of the image potential resonance tracks the change in the work function with Sn coverage. The image potential resonance appears much weaker in the spectrum from the related crystalline Al-Pd-Mn surface, demonstrating that its strength is related to the compatibility of the quasiperiodic wave functions in i?Al?Pd?Mn with the free-electron-like image potential states. Our investigation of the energy region immediately above EF provides unambiguous evidence for the presence of a pseudogap, in agreement with our density functional theory calculations.

Maniraj, M [UGC-DAE Confortium for Scientific Research; Rai, Abhishek [UGC-DAE Confortium for Scientific Research; Barman, S R [UGC-DAE Confortium for Scientific Research; Krajci, M [Slovak Academy of Sciences; Schlagel, Deborah L [Ames Laboratory; Lograsso, Thomas A [Ames Laboratory; Horn, K [Fritz-Haber-Institut der Max-Planck-Gesellschaft

2014-09-01T23:59:59.000Z

32

Evidence for triplet superconductivity in Josephson junctions with barriers of the ferromagnetic Heusler alloy Cu2MnAl  

E-Print Network [OSTI]

Evidence for triplet superconductivity in Josephson junctions with barriers of the ferromagnetic have studied Josephson junctions with barriers prepared from the Heusler compound Cu2MnAl. In the as metal. Measurements on lateral Josephson junctions with half metallic CrO2 Ref. 7 and the rare

Martinis, John M.

33

ccsd-00093858,version1-13Sep2006 APS/123-QED Cleaved surface of i-AlPdMn quasicrystals  

E-Print Network [OSTI]

a perfectly brittle behavior to a nanoductile one. PACS numbers: 62.20.Mk, 64.60.Ht, 68.35.Ct, 81.40.Np, 61 by Scanning Tun- neling Microscopy (STM) of cleaved i-AlPdMn samples in ultra high vacuum (UHV) were obtained

Paris-Sud XI, Université de

34

Investigation of the hydroconversion of rancid lard and lard-gas oil mixture on NiMo/Al2O3 catalyst in oxide and in sulphide state  

Science Journals Connector (OSTI)

The necessity to maintain mobility and the increasing energy- and environmentally sound demands necessitated the research, development and utilization of engine fuels from renewable resources. Because of the negative features of the already and generally ... Keywords: NiMo/Al2O3, hydroconversion, hydrogenation, lard, triglyceride

P. Baladincz; J. Hancsók

2011-12-01T23:59:59.000Z

35

Thiophene, 2,3- and 2,5-dihydrothiophene, and tetrahydrothiophene hydrodesulfurization on Mo and Re/. gamma. -Al sub 2 O sub 3 catalysts  

SciTech Connect (OSTI)

Comparative studies of the hydrodesulfurization (HDS) of thiophene, 2,3-dihydrothiophene, 2,5-dihydrothiophene and tetrahydrothiophene were performed using Mo/{gamma}-Al{sub 2}O{sub 3} and Re/{gamma}-Al{sub 2}O{sub 3} catalysts. Reaction pathways for interconverion of the organosulfur compounds were shown to exist. Both dihydrothiophene compounds were high reactive and formed significant amounts of 1,3-butadiene at 300{degree}C over Re catalysts. The dihydrothiophenes are proposed to be possible reaction intermediates for thiophene HDS.

Markel, E.J.; Schrader, G.L.; Sauer, N.N.; Angelici, R.J. (Iowa State Univ., Ames (USA))

1989-03-01T23:59:59.000Z

36

Improved Hydrogen Storage Performance of MgH2-LiAlH4 Composite by Addition of MnFe2O4  

E-Print Network [OSTI]

Improved Hydrogen Storage Performance of MgH2-LiAlH4 Composite by Addition of MnFe2O4 Qi Wan, Ping storage properties of MgH2-LiAlH4, prepared by ball milling, are studied for the first time. The hydrogen/L) densities are extremely eager for on-board hydrogen storage in fuel cell vehicles according to the U.S. DOE

Volinsky, Alex A.

37

Isothermal calorimetry investigation of Li{sub 1+x}Mn{sub 2-y}Al{sub z}O{sub 4} spinel.  

SciTech Connect (OSTI)

The heat generation of LiMn{sub 2}O{sub 4}, Li{sub 1.156}Mn{sub 1.844}O{sub 4}, and Li{sub 1.06}Mn{sub 1.89}Al{sub 0.05}O{sub 4} spinel cathode materials in a half-cell system was investigated by isothermal micro-calorimetry (IMC). The heat variations of the Li/LiMn{sub 2}O{sub 4} cell during charging were attributed to the LiMn{sub 2}O{sub 4} phase transition and order/disorder changes. This heat variation was largely suppressed when the stoichiometric spinel was doped with excess lithium or lithium and aluminum. The calculated entropy change (dE/dT) from the IMC confirmed that the order/disorder change of LiMn{sub 2}O{sub 4}, which occurs in the middle of the charge, was largely suppressed with lithium or lithium and aluminum doping. The dE/dT values obtained did not agree between the charge and the discharge at room temperature (25 C), which was attributed to cell self-discharge. This discrepancy was not observed at low temperature (10 C). Differential scanning calorimeter (DSC) results showed that the fully charged spinel with lithium doping has better thermal stability.

Lu, W.; Belharouak, I.; Park, S. H.; Sun, Y. K; Amine, K.; Chemical Engineering; Hanyang Univ.

2007-05-25T23:59:59.000Z

38

Solution-based thermodynamic modeling of the NiAlMo system using first-principles calculations  

E-Print Network [OSTI]

function with appropriate treatment of the chemical ordering contribution. In addition, notable in current and future power generation and transportation technologies. Moreover, the refrac- tory metal Mo-base super- alloys [1­6]. Despite its widespread use, quantitative guidelines for future alloy development

Chen, Long-Qing

39

Effective hole extraction using MoO{sub x}-Al contact in perovskite CH{sub 3}NH{sub 3}PbI{sub 3} solar cells  

SciTech Connect (OSTI)

We report an 11.4%-efficient perovskite CH{sub 3}NH{sub 3}PbI{sub 3} solar cell using low-cost molybdenum oxide/aluminum (i.e., MoO{sub x}/Al) as an alternative top contact to replace noble/precious metals (e.g., Au or Ag) for extracting photogenerated holes. The device performance of perovskite solar cells using a MoO{sub x}/Al top contact is comparable to that of cells using the standard Ag top contact. Analysis of impedance spectroscopy measurements suggests that using 10-nm-thick MoO{sub x} and Al does not affect charge-recombination properties of perovskite solar cells. Using a thicker (20-nm) MoO{sub x} layer leads to a lower cell performance caused mainly by a reduced fill factor. Our results suggest that MoO{sub x}/Al is promising as a low-cost and effective hole-extraction contact for perovskite solar cells.

Zhao, Yixin; Nardes, Alexandre M.; Zhu, Kai, E-mail: Kai.Zhu@nrel.gov [Chemical and Materials Science Center, National Renewable Energy Laboratory, Golden, Colorado 80401 (United States)

2014-05-26T23:59:59.000Z

40

Characteristics of a commercially aged Ni-Mo/Al2O3 hydrotreating catalyst: component distribution, nature of coke and effects of regeneration  

SciTech Connect (OSTI)

Information concerning the morphology and behavior of active components on commercially aged catalyst, the effects of regeneration conditions on activity, and insights into the nature of coke and contaminant metal deposits could lead to improved catalysts and operating conditions , yielding significant economic returns. Spent Ni-Mo/Al2O3 hydrotreating catalyst from a commercial hydrotreater was examined using TGA, SEM, STEM, XPS, and a microreactor. Information concerning intraparticle distributions of active components, characteristics of the coke and metal deposits, and catalytic activity for fresh, spent and regenerated catalyst was used to draw general conclusions concerning hydrotreating catalyst deactivation. It was found that catalytic activity was reduced and the nature of the hydrogenation function was altered due to bulk migration and agglomeration of molybdenum. This process was found to be accelerated by high-temperature regeneration. Results also indicated that iron deposits might catalyze formation of coke. Tentative generalizations and suggestions on improved reactor operation are presented.

Bogdanor, J.M.

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Scanning tuneeling microscopy studies of fivefold surfaces of icosahedral Al-Pd-Mn quasicrystals and of thin silver films on those surfaces  

SciTech Connect (OSTI)

The present work in this dissertation mainly focuses on the clean fivefold surfaces of i-Al-Pd-Mn quasicrystals as well as the nucleation and growth of Ag films on these surfaces. In addition, Ag film growth on NiAl(110) has been explored in the frame of this dissertation. First, we have investigated the equilibration of a fivefold surface of icosahedral Al-Pd-Mn quasicrystal at 900-915 K and 925-950 K, using Omicron variable temperature scanning tunneling microscope (STM). Annealing at low temperatures resulted in many voids on some terraces while the others were almost void-free. After annealing at 925-950K, void-rich terraces became much rarer. Our STM images suggest that through growth and coalescence of the voids, a different termination becomes exposed on host terraces. All of these observations in our study indicate that even after the quasicrystalline terrace-step structure appears, it evolves with time and temperature. More specifically, based on the STM observations, we conclude that during the annealing a wide range of energetically similar layers nucleate as surface terminations, however, with increasing temperature (and time) this distribution gets narrower via elimination of the metastable void-rich terraces. Next, we have examined the bulk structural models of icosahedral Al-Pd-Mn quasicrystal in terms of the densities, compositions and interplanar spacings for the fivefold planes that might represent physical surface terminations. In our analyses, we mainly have focused on four deterministic models which have no partial or mixed occupancy but we have made some comparisons with an undeterministic model. We have compared the models with each other and also with the available experimental data including STM, LEED-IV, XPD and LEIS. In all deterministic models, there are two different families of layers (a pair of planes), and the nondeterministic model contains similar group of planes. These two families differ in terms of the chemical decoration of their top planes. Hence, we name them as Pd+(with Pd) and Pd-(without Pd). Based on their planer structure and the step height, it can be said that these two families can be viable surface terminations. However, besides the Pd content, these two sets differ in terms of relative densities of their top planes as well as the gap separating the layer from the nearest atomic plane. The experimental data and other arguments lead to the conclusion that the Pd- family is favored over the Pd+. This has an important implication on the interpretation of local motifs seen in the high resolution STM images. In other words, the dark stars are not formed by cut-Bergmans rather they are formed by cut-Mackays.

Unal, Baris

2008-12-01T23:59:59.000Z

42

AL  

E-Print Network [OSTI]

AL. EMERGENCY PREPAREDNESS SYLLABUS ATTACHMENT. EMERGENCY NOTIFICATION PROCEDURES are based on a simple concept - if you hear a.

43

Characterization of solid-phase welds between Ti-6Al-2Sn-4Zr-2Mo-0. 01Si and Ti-13. 5A1-21. 5Nb titanium aluminide  

SciTech Connect (OSTI)

Dissimilar-alloy welds have been produced between Ti-6Al-2Sn-4Zr-2Mo-0.1Si (wt.%) and Ti-13.5Al-21.5Nb (wt.%) titanium aluminide using three different solid-phase welding processes that create significantly different thermo-mechanical conditions at the weld interface. Exposure to supertransus temperatures, appreciable deformation and rapid cooling of the weld interface region during linear-friction welding promote dynamic recrystallization of beta grains and beta decomposition to fine martensitic products. In contrast, diffusion welding at temperatures below the base metal beta transus temperatures and at relatively low pressures minimizes deformation and microstructural variations in the weld interface region relative to the unaffected base metal. During capacitor-discharge resistance spot welding, extremely rapid heating of the weld interface region to near-solidus temperatures, and subsequent rapid cooling, result in the formation of a metastable, ordered-beta microstructure in the Ti-13.5ASl-21.5Nb and fine alpha-prime martensite in the Ti-6Al-2Sn-4Zr-2Mo-0.1Si.

Baeslack, W.A. III; Juhas, M.; Fraser, H.L. (Ohio State Univ., Columbus, OH (United States)); Broderick, T.F. (Wright Labs., Wright Patterson AFB, OH (United States). Materials Directorate)

1994-12-01T23:59:59.000Z

44

Effect of MnO on the microstructures, phase stability and mechanical properties of ceria-partially-stabilized zirconia (Ce-TZP) and Ce-TZP-Al sub 2 O sub 3 composites  

SciTech Connect (OSTI)

Effect of increasing amounts of MnO additions on the microstructures, phase stability and mechanical properties of ZrO{sub 2}-12 m% CeO{sub 2} and ZrO{sub 2}-12 m% CeO{sub 2}-10 w% Al{sub 2}O{sub 3} were studied. MnO suppressed grain growth in ZrO{sub 2}-12 m% CeO{sub 2}, while enhancing the mechanical properties significantly (strength=557 MPa, fracture toughness=9.3 MPa.(m){sup 1/2} at 0.2 w% MnO). The enhanced mechanical properties were achieved despite an increased stability of the tetragonal phase as evidenced by a lower burst transformation temperature (M{sub b}) and a reduced volume fraction of the monoclinic phase on the fracture surface. In ZrO{sub 2}-12 m% CeO{sub 2}-10 w% Al{sub 2}O{sub 3}, the addition of MnO suppressed the grain size of ZrO{sub 2}, while promoting grain growth and changing the morphology of Al{sub 2}O{sub 3}. More significantly, the stability of the tetragonal ZrO{sub 2} phase decreased (high M{sub b} temperature) with a concurrent increase in fracture toughness (13.2 MPa.(m){sup 1/2} at 2 w% MnO) and transformation plasticity (1.2% in four-point bending). The widths of the transformation zones observed adjacent to the fracture surfaces showed a consistent inverse relation to the transformation yield stress as would be expected from the mechanics of stress-induced phase transformation at crack tips. The improvements in mechanical properties obtained in the base Ce-TZP and the Ce-TZP-Al{sub 2}O{sub 3} composite ceramics with the addition of MnO are critically examined in the context of transformation toughening and other possible mechanisms.

Wang, J.S.; Tsai, J.F.; Shetty, D.K.; Virkar, A.V. (Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT (USA))

1990-09-01T23:59:59.000Z

45

Structural Underpinnings of the Enhanced Cycling Stability upon Al-Substitution in LiNi[subscript 0.45]Mn[subscript 0.45]Co[subscript 0.1?y]Al[subscript y]O[subscript 2] Positive Electrode Materials for Li-ion Batteries  

SciTech Connect (OSTI)

Single-phase LiNi{sub 0.45}Mn{sub 0.45}Co{sub 0.1-y}Al{sub y}O{sub 2} layered oxide materials with 0 {<=} y {<=} 0.10 were prepared using the glycine-nitrate combustion method. Al-substitution has a minimal effect on the defect concentration and rate capability of the materials, but raises the operating voltage and reduces the capacity fade of the materials during prolonged cycling compared to the unsubstituted system. In situ X-ray diffraction suggests the presence of Al has a significant structural impact during battery operation. It acts to limit the changes in lattice parameters observed during electrochemical charging and cycling of the materials. High-resolution X-ray diffraction reveals structural distortions in the transition metal layers of as-synthesized powders with high Al-contents, as well as a structural evolution seen in all materials after cycling.

Conry, Thomas E.; Mehta, Apurva; Cabana, Jordi; Doeff, Marca M. (UCB); (SSRL)

2012-10-23T23:59:59.000Z

46

Mechanism and kinetics of carbide dissolution in near alpha Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd titanium alloy  

SciTech Connect (OSTI)

The present work evaluates the influence of bulk carbon content and aging temperature on the stability of carbide in near alpha Ti-5.6Al-4.8Sn-2Zr-1Mo-0.35Si-0.7Nd titanium alloy. The carbide particles were formed during heat treatment in the {beta} phase field and preserved by water quenching. Subsequent aging treatments at 750-850 Degree-Sign C caused partial dissolution of these precipitates, as a result of the peritectoid reaction between the {beta} phase and carbide. The models based on interface reaction controlled dissolution, via uniform atomic detachment, dislocation mechanism or vacancy flow, yielded experimental predictions comparable to the observed dissolution kinetics. Furnace cooling after heat treatment in the {beta} phase field dissolved carbide particles completely, and the microstructure changed from acicular-like or block {alpha} to equiaxed {alpha} with increase of carbon content. - Highlights: Black-Right-Pointing-Pointer Carbide dissolution occurs at precipitate/matrix interfaces, forming {beta}-depleted zone. Black-Right-Pointing-Pointer Peritectoid reaction is responsible for drastic reduction of carbide volume fraction. Black-Right-Pointing-Pointer Slower dissolution rate is accounted by dislocation, vacancy flow, and curvature. Black-Right-Pointing-Pointer Lamellar changed to equiaxed {alpha} with increasing carbon from {beta} furnace cooling.

Zhang, S.Z., E-mail: szzhangyt@163.com [School of Environmental and Materials Engineering, Yantai University, 32 Qingquan Road, Yantai 264005 (China); Li, M.M. [School of Environmental and Materials Engineering, Yantai University, 32 Qingquan Road, Yantai 264005 (China); Yang, R. [Titanium Alloy Laboratory, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (China)

2011-12-15T23:59:59.000Z

47

BiFeO{sub 3}/La{sub 0.7}Sr{sub 0.3}MnO{sub 3} heterostructures deposited on spark plasma sintered LaAlO{sub 3} substrates  

SciTech Connect (OSTI)

Multiferroic BiFeO{sub 3} (BFO)/La{sub 0.7}Sr{sub 0.3}MnO{sub 3} heterostructured thin films were grown by pulsed laser deposition on polished spark plasma sintered LaAlO{sub 3} (LAO) polycrystalline substrates. Both polycrystalline LAO substrates and BFO films were locally characterized using electron backscattering diffraction, which confirmed the high-quality local epitaxial growth on each substrate grain. Piezoforce microscopy was used to image and switch the piezo-domains, and the results are consistent with the relative orientation of the ferroelectric variants with the surface normal. This high-throughput synthesis process opens the routes towards wide survey of electronic properties as a function of crystalline orientation in complex oxide thin film synthesis.

Pravarthana, D.; Lacotte, M.; David, A.; Prellier, W., E-mail: wilfrid.prellier@ensicaen.fr [Laboratoire CRISMAT, CNRS UMR 6508, ENSICAEN, Normandie Université, 6 Bd Maréchal Juin, F-14050 Caen Cedex 4 (France); Trassin, M. [Department of Physics, University of California, Berkeley, California 94720 (United States); Department of Materials, ETH, Wolfgang-Pauli-Str. 10, 8093 Zurich (Switzerland); Haw Chu, Jiun [Department of Physics, University of California, Berkeley, California 94720 (United States); Ramesh, R. [Department of Physics, University of California, Berkeley, California 94720 (United States); Department of Materials Science and Engineering, University of California, Berkeley, California 94720 (United States); Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Salvador, P. A. [Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Ave., Pittsburgh, Pennsylvania 15213 (United States)

2014-02-24T23:59:59.000Z

48

Prediction of flow stress in a wide temperature range involving phase transformation for as-cast Ti–6Al–2Zr–1Mo–1V alloy by artificial neural network  

Science Journals Connector (OSTI)

The isothermal compressions of as-cast Ti–6Al–2Zr–1Mo–1V titanium alloy in a wide temperature range of 1073–1323 K and strain rate range of 0.01–10 s?1 with a reduction of 60% were conducted on a Gleeble-1500 thermo-mechanical simulator. The flow stress shows a complex non-linear intrinsic relationship with strain, strain rate and temperature, meanwhile the strain-softening behavior articulates dynamic recrystallization mechanism in ? phase, dynamic recovery mechanism in ? phase and their comprehensive function during phase transformation (? + ?). Based on the experimental data, an artificial neural network (ANN) was trained with standard back-propagation learning algorithm to generalize the complex deformation behavior characteristics. In the present ANN model, strain and temperature were taken as inputs, and flow stress as output. A comparative study has been made on ANN model and improved Arrhenius-type constitutive model, and their predictability has been evaluated in terms of correlation coefficient (R) and average absolute relative error (ARRE). During ?, ? + ? and ? phase regime, R-value and ARRE-value for the improved Arrhenius-type model are 0.9824% and 6.02%, 0.9644% and 21.02%, and 0.9627% and 12.38%, respectively, while the R-value and ARRE-value for the ANN model are 0.9992% and 0.91%, 0.9996% and 1.47%, and 0.9975% and 2.17%, respectively. The predicted strain–stress curves outside of experimental conditions articulate the similar intrinsic relationships with experimental strain–stress curves. The results show that the feed-forward back-propagation ANN model can accurately tracks the experimental data in a wide temperature range and strain rate range associated with interconnecting metallurgical phenomena, and in further it has a good capacity to model complex hot deformation behavior of titanium alloy outside of experimental conditions.

Guo-zheng Quan; Wen-quan Lv; Yuan-ping Mao; Yan-wei Zhang; Jie Zhou

2013-01-01T23:59:59.000Z

49

Structural And Physical Characterization of Tetranuclear [Mn**II(3)Mn**IV] And [Mn**II(2)Mn**III(2)] Valence-Isomer Manganese Complexes  

SciTech Connect (OSTI)

Two tetranuclear Mn complexes with an average Mn oxidation state of +2.5 have been prepared. These valence isomers have been characterized by a combination of X-ray crystallography, X-ray absorption spectroscopy, and magnetic susceptibility. The Mn{sup II}{sub 3}Mn{sup IV} tetramer has the Mn ions arranged in a distorted tetrahedron, with an S = 6 ground spin state, dominated by ferromagnetic exchange among the manganese ions. The Mn{sup II}{sub 2}Mn{sup III}{sub 2} tetramer also has a distorted tetrahedral arrangement of Mn ions but shows magnetic behavior, suggesting that it is a single-molecule magnet. The X-ray absorption near-edge structure (XANES) spectra for the two complexes are similar, suggesting that, while Mn XANES has sufficient sensitivity to distinguish between trinuclear valence isomers (Alexiou et al. Inorg. Chem. 2003, 42, 2185), similar distinctions are difficult for tetranuclear complexes such as that found in the photosynthetic oxygen-evolving complex.

Zaleski, C.M.; Weng, T.-C.; Dendrinou-Samara, C.; Alexiou, M.; Kanakaraki, P.; Hsieh, W.-Y.; Kampf, J.; Penner-Hahn, J.E.; Pecoraro, V.L.; Kessissoglou, D.P.

2009-05-28T23:59:59.000Z

50

Distinct local electronic structure and magnetism for Mn in amorphous Si and Ge  

E-Print Network [OSTI]

Li, A. P. et al. Magnetism in Mn x Ge 1-x semiconductorsElectronic Structure and Magnetism for Mn in Amorphous Sistructure that determines magnetism. Figure 3 shows XAS data

Zeng, Li

2010-01-01T23:59:59.000Z

51

Reply to comment by T. Molg et al. on ``Recent glacial recession in the Rwenzori Mountains of East Africa due to rising air temperature''  

E-Print Network [OSTI]

Reply to comment by T. Mo¨lg et al. on ``Recent glacial recession in the Rwenzori Mountains of East, A. Majugu, A. Muwanga, and B. Nakileza (2006), Reply to comment by T. Mo¨lg et al. on ``Recent.g., Bradley et al., 2006; Thompson et al., 2006] and atmospheric humidity [e.g. Kaser et al., 2004; Mo

Jones, Peter JS

52

Coated U(Mo) Fuel: As-Fabricated Microstructures  

SciTech Connect (OSTI)

As part of the development of low-enriched uranium fuels, fuel plates have recently been tested in the BR-2 reactor as part of the SELENIUM experiment. These fuel plates contained fuel particles with either Si or ZrN thin film coating (up to 1 µm thickness) around the U-7Mo fuel particles. In order to best understand irradiation performance, it is important to determine the starting microstructure that can be observed in as-fabricated fuel plates. To this end, detailed microstructural characterization was performed on ZrN and Si-coated U-7Mo powder in samples taken from AA6061-clad fuel plates fabricated at 500°C. Of interest was the condition of the thin film coatings after fabrication at a relatively high temperature. Both scanning electron microscopy and transmission electron microscopy were employed. The ZrN thin film coating was observed to consist of columns comprised of very fine ZrN grains. Relatively large amounts of porosity could be found in some areas of the thin film, along with an enrichment of oxygen around each of the the ZrN columns. In the case of the pure Si thin film coating sample, a (U,Mo,Al,Si) interaction layer was observed around the U-7Mo particles. Apparently, the Si reacted with the U-7Mo and Al matrix during fuel plate fabrication at 500°C to form this layer. The microstructure of the formed layer is very similar to those that form in U-7Mo versus Al-Si alloy diffusion couples annealed at higher temperatures and as-fabricated U-7Mo dispersion fuel plates with Al-Si alloy matrix fabricated at 500°C.

Emmanuel Perez; Dennis D. Keiser, Jr.; Ann Leenaers; Sven Van den Berghe; Tom Wiencek

2014-04-01T23:59:59.000Z

53

Phase diagram Al-Ge-Mn  

Science Journals Connector (OSTI)

This document is part of Subvolume A ‘Nonequilibrium Phase Diagrams of Ternary Amorphous Alloys’ of Volume 37 ‘Phase Diagrams and Physical Properties of Nonequilibrium Alloys’ of Landolt-Börnstein - Group III ...

Y. Kawazoe; T. Masumoto; K. Suzuki; A. Inoue…

1997-01-01T23:59:59.000Z

54

Kinetic, Mechanistic, and Spectroscopic Studies of the Mo/Cu Containing CO dehydrogenase of Oligotropha carboxidovorans  

E-Print Network [OSTI]

et. al. where active site models [Tp iPr MoO(OAr)(?-S)Cu(triazacyclononane) (Tp iPr ) = hydrotris(3-isopropylpyrazol-of CO dehydrogenase: [Tp iPr Mo (V) (O)(OAr)(?-S)Cu (I) (Me

Wilcoxen, Jarett Michael

2013-01-01T23:59:59.000Z

55

Ethanol Conversion on Cyclic (MO3)3 (M = Mo, W) Clusters. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conversion on Cyclic (MO3)3 (M Mo, W) Clusters. Ethanol Conversion on Cyclic (MO3)3 (M Mo, W) Clusters. Abstract: Oxides of molybdenum and tungsten are an important class of...

56

Single Nanorod Devices for Battery Diagnostics: A Case Study on LiMn2O4  

E-Print Network [OSTI]

correlate well with the better cycling performance of Al-doped LiMn2O4 in our Li-ion battery tests: LiAl0Single Nanorod Devices for Battery Diagnostics: A Case Study on LiMn2O4 Yuan Yang, Chong Xie nanostructure devices as a powerful new diagnostic tool for batteries with LiMn2O4 nanorod materials

Cui, Yi

57

US WNC MO Site Consumption  

U.S. Energy Information Administration (EIA) Indexed Site

WNC MO WNC MO Site Consumption million Btu $0 $500 $1,000 $1,500 $2,000 $2,500 US WNC MO Expenditures dollars ALL ENERGY average per household (excl. transportation) 0 3,000 6,000 9,000 12,000 15,000 US WNC MO Site Consumption kilowatthours $0 $300 $600 $900 $1,200 $1,500 US WNC MO Expenditures dollars ELECTRICITY ONLY average per household * Missouri households consume an average of 100 million Btu per year, 12% more than the U.S. average. * Average household energy costs in Missouri are slightly less than the national average, primarily due to historically lower residential electricity prices in the state. * Missouri homes are typically larger than homes in other states and are more likely to be attached or detached single-family housing units.

58

MoS2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4 4 Myriam Perez De la Rosa1, Gilles Berhault2, Apurva Mehta3, and Russell R. Chianelli1 1University of Texas at El Paso, Materials Research Technology Institute, El Paso, TX 2Institut de Recherches sur la Catalyse, CNRS, Villeurbanne cedex, France 3Stanford Synchrotron Radiation Laboratory, Menlo Park, CA Figure 1: MoS2 layered structure. As the world economy continues to expand the demand for petroleum based fuel increases and the price of these fuels rises. The rising price of fuel has another consequence: refiners tend to purchase cheaper fuels of poorer quality. These poor quality fuels contain increasing amounts of sulfur and other pollutants leading to a decline in air quality worldwide. A recent New York Times article described the major impact a growing Chinese economy

59

Letter Report Documenting Progress of Second Generation ATF FeCrAl Alloy Fabrication  

SciTech Connect (OSTI)

Development of the 2nd generation ATF FeCrAl alloy has been initiated, and a candidate alloy was selected for trial tube fabrication through hot-extrusion and gun-drilling processes. Four alloys based on Fe-13Cr-4.5Al-0.15Y in weight percent were newly cast with minor alloying additions of Mo, Si, Nb, and C to promote solid-solution and second-phase precipitate strengthening. The alloy compositions were selected with guidance from computational thermodynamic tools. The lab-scale heats of ~ 600g were arc-melted and drop-cast, homogenized, hot-forged and -rolled, and then annealed producing plate shape samples. An alloy with Mo and Nb additions (C35MN) processed at 800°C exhibits very fine sub-grain structure with the sub-grain size of 1-3?m which exhibited more than 25% better yield and tensile strengths together with decent ductility compared to the other FeCrAl alloys at room temperature. It was found that the Nb addition was key to improving thermal stability of the fine sub-grain structure. Optimally, grains of less than 30 microns are desired, with grains up to and order of magnitude in desired produced through Nb addition. Scale-up effort of the C35MN alloy was made in collaboration with a commercial cast company who has a capability of vacuum induction melting. A 39lb columnar ingot with ~81mm diameter and ~305mm height (with hot-top) was commercially cast, homogenized, hot-extruded, and annealed providing 10mm-diameter bar-shape samples with the fine sub-grain structure. This commercial heat proved consistent with materials produced at ORNL at the lab-scale. Tubes and end caps were machined from the bar sample and provided to another work package for the ATF-1 irradiation campaign in the milestone M3FT-14OR0202251.

Yamamoto,, Y. [ORNL] [ORNL; Yang, Y. [ORNL] [ORNL; Field, K. G. [ORNL] [ORNL; Terrani, K. [ORNL] [ORNL; Pint, B. A. [ORNL] [ORNL; Snead, L. L. [ORNL] [ORNL

2014-06-10T23:59:59.000Z

60

AlN/Fe/AlN nanostructures for magnetooptic magnetometry  

SciTech Connect (OSTI)

AlN/Fe/AlN/Cu nanostructures with ultrathin Fe grown by sputtering on Si substrates are evaluated as probes for magnetooptical (MO) mapping of weak currents. They are considered for a laser wavelength of ??=?410?nm (3.02?eV) and operate at oblique light incidence angles, ?{sup (0)}, to enable detection of both in-plane and out-of-plane magnetization. Their performance is evaluated in terms of MO reflected wave electric field amplitudes. The maximal MO amplitudes in AlN/Fe/AlN/Cu are achieved by a proper choice of layer thicknesses. The nanostructures were characterized by MO polar Kerr effect at ?{sup (0)}???5° and longitudinal Kerr effect spectra (?{sup (0)}?=?45°) at photon energies between 1 and 5?eV. The nominal profiles were refined using a model-based analysis of the spectra. Closed form analytical expressions are provided, which are useful in the search for maximal MO amplitudes.

Lišková-Jakubisová, E., E-mail: liskova@karlov.mff.cuni.cz; Viš?ovský, Š. [Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 12116 Prague 2 (Czech Republic); Široký, P.; Hrabovský, D.; Pištora, J. [Nanotechnology Center, Technical University of Ostrava, 17. listopadu 15/2172, 70833 Ostrava Poruba (Czech Republic); Harward, I.; Celinski, Z. [Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, 1420 Austin Bluffs Pkwy., Colorado Springs, Colorado 80918 (United States)

2014-05-07T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

An Investigation into the evolution of damage and residual stresses in Ti6Al4V-Al?Ti metal intermetallic laminate (MIL) composites  

E-Print Network [OSTI]

good creep resistance, and relatively low material density.strengthened materials are toughened since the resistance toresistance of interfaces in NiAl/Mo model laminates, Materials

Li, Tiezheng

2006-01-01T23:59:59.000Z

62

MattssonMoVacPrague2009.ppt  

National Nuclear Security Administration (NNSA)

Thomas R Mattsson Thomas R Mattsson Sandia National Laboratories Albuquerque, NM, USA Nils Sandberg -- KTH, Stockholm Richard Armiento -- Univ. Bayreuth, Germany Ann Mattsson -- Sandia National Laboratories Self-diffusion in Mo using the AM05 density functional Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Joint U.S. Russia Conference on Advances in Materials Science Prague, Czech Republic Aug 31-Sept 3, 2009 SAND 2009-2197 C, 2009-3883 C, 2009-4713 C, and 2002-1323 P Vacancy mediated diffusion is the main mechanism for mass transport in solids *Vacancies are important for *Self-diffusion *Defect migration *Radiation damage/ swelling

63

Compaction and Sintering of Mo Powders  

SciTech Connect (OSTI)

To support the development of Mo-99 production by NorthStar Medical Technologies, LLC, Mo metal powders were evaluated for compaction and sintering characteristics as they relate to Mo-100 accelerator target disk fabrication. Powders having a natural isotope distribution and enriched Mo-100 powder were examined. Various powder characteristics are shown to have an effect on both the compaction and sintering behavior. Natural Mo powders could be cold pressed directly to >90% density. All of the powders, including the Mo-100 samples, could be sintered after cold pressing to >90% density. As an example, a compacted Mo-100 disk reached 89.7% density (9.52 g/cm3) after sintering at 1000 C for 1 hr. in flowing Ar/4%H2. Higher sintering temperatures were required for other powder samples. The relationships between processing conditions and the resulting densities of consolidated Mo disks will be presented.

Nunn, Stephen D [ORNL] [ORNL; Kiggans, Jim [ORNL] [ORNL; Bryan, Chris [ORNL] [ORNL

2013-01-01T23:59:59.000Z

64

DOE - Office of Legacy Management -- St Louis Airport - MO 01  

Office of Legacy Management (LM)

Airport - MO 01 Airport - MO 01 FUSRAP Considered Sites St. Louis Airport, MO Alternate Name(s): Airport Site St. Louis Airport Storage Site (SLAPS) Former Robertson Storage Area Robertson Airport MO.01-1 MO.01-2 Location: Brown Road, Robertson, Missouri MO.01-2 Historical Operations: Stored uranium process residues containing uranium, radium, and thorium for the MED and AEC. MO.01-2 MO.01-3 MO.01-4 Eligibility Determination: Eligible MO.01-1 MO.01-7 Radiological Survey(s): Assessment Surveys MO.01-4 MO.01-5 Site Status: Cleanup in progress by U.S. Army Corps of Engineers. MO.01-6 USACE Website Long-term Care Requirements: To be determined upon completion. Also see Documents Related to St. Louis Airport, MO MO.01-1 - DOE Memorandum; Coffman to LaGrone; Subject: Authorization

65

Removal of B, Cr, Mo, and Se from Wastewater by Incorporation into Hydrocalumite and Ettringite  

Science Journals Connector (OSTI)

Removal of B, Cr, Mo, and Se from Wastewater by Incorporation into Hydrocalumite and Ettringite ... During the leaching of fly ash in alkaline environments, hydrocalumite (Ca4Al2(OH)12(OH)2·6H2O) and ettringite (Ca6Al2(OH)12(SO4)3·26H2O) form as secondary precipitates. ... In this study, the removal of B, Cr, Mo, and Se oxyanions from high pH waters by incorporation into hydrocalumite and ettringite was examined. ...

Min Zhang; Eric J. Reardon

2003-06-03T23:59:59.000Z

66

E-Print Network 3.0 - al dano genetico Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Il 2010 l'Anno internazionale della Summary: appartengono. Al tema dedicata una mo- stra a cura del Centro di Ateneo per i Mu- sei, in collaborazione con... ", aperta fino al...

67

DOE - Office of Legacy Management -- Latty Avenue Site - MO 04  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Latty Avenue Site - MO 04 Latty Avenue Site - MO 04 FUSRAP Considered Sites Latty Avenue Site, MO Alternate Name(s): Futura Coatings Futura Chemical Company Facility Hazelwood Interim Storage Site (HISS) Former Cotter Site, Latty Avenue Properties Contemporary Metals Corp. Continental Mining and Milling MO.04-1 MO.04-2 MO.04-5 MO.04-6 MO.06-8 MO.06-11 Location: 9200 Latty Avenue, Hazelwood, Missouri MO.04-1 Historical Operations: Received, stored, and processed uranium residues for the AEC. Storage and processing were licensed by the AEC and NRC and resulted in contamination of uranium and thorium. MO.04-5 MO.04-6 Eligibility Determination: Eligible MO.04-3 MO.04-4 Radiological Survey(s): Assessment Surveys MO.04-2 MO.04-7 MO.04-8 MO.04-9 MO.04-10 MO.04-11 Site Status: Cleanup in progress by U.S. Army Corps of Engineers. MO.04-12

68

Framework-incorporated Mn and Co analcime zeolites: Synthesis and characterization  

SciTech Connect (OSTI)

The framework-substituted cobalt and manganese analcime zeolites were synthesized via a direct hydrothermal approach. The obtained samples were characterized by XRD powder, SEM-EDX, nitrogen physical adsorption, Raman microscopy, diffuse reflectance UV-Vis and IR spectroscopy which complementarily demonstrated the incorporation of cobalt and manganese into the zeolites framework. The results showed that substitution of Mn and Co could be placed in two synthesis gels with same compositions containing Al/Mn=5 and Al/Co=4 mol ratios, respectively. In addition, with replacing Al with Mn and synthesis of Mn-modified analcime, zeolite with higher surface area and pore volume could be achieved than the Co modified analcime. - Graphical abstract: The images and adsorption-desorption isotherms of N{sub 2} at 77 K for (a) Co (b) Mn modified analcime. Highlights: Black-Right-Pointing-Pointer Synthesis of Co and Mn modified analcime for the first time. Black-Right-Pointing-Pointer Framework-incorporation of Co and Mn using the same silicate gel composition. Black-Right-Pointing-Pointer Applying several techniques to provide proofs for the characterization.

Azizi, Seyed Naser, E-mail: azizi@umz.ac.ir [Analytical Division, Faculty of Chemistry, University of Mazandaran, P.O. Box 47416-95447, Babolsar (Iran, Islamic Republic of); Ehsani Tilami, Salma [Analytical Division, Faculty of Chemistry, University of Mazandaran, P.O. Box 47416-95447, Babolsar (Iran, Islamic Republic of)] [Analytical Division, Faculty of Chemistry, University of Mazandaran, P.O. Box 47416-95447, Babolsar (Iran, Islamic Republic of)

2013-02-15T23:59:59.000Z

69

IRRADIATION PERFORMANCE OF U-Mo MONOLITHIC FUEL  

SciTech Connect (OSTI)

High-performance research reactors require fuel that operates at high specific power to high fission density, but at relatively low temperatures. Research reactor fuels are designed for efficient heat rejection, and are composed of assemblies of thin-plates clad in aluminum alloy. The development of low-enriched fuels to replace high-enriched fuels for these reactors requires a substantially increased uranium density in the fuel to offset the decrease in enrichment. Very few fuel phases have been identified that have the required combination of very-high uranium density and stable fuel behavior at high burnup. UMo alloys represent the best known tradeoff in these properties. Testing of aluminum matrix U-Mo aluminum matrix dispersion fuel revealed a pattern of breakaway swelling behavior at intermediate burnup, related to the formation of a molybdenum stabilized high aluminum intermetallic phase that forms during irradiation. In the case of monolithic fuel, this issue was addressed by eliminating, as much as possible, the interfacial area between U-Mo and aluminum. Based on scoping irradiation test data, a fuel plate system composed of solid U-10Mo fuel meat, a zirconium diffusion barrier, and Al6061 cladding was selected for development. Developmental testing of this fuel system indicates that it meets core criteria for fuel qualification, including stable and predictable swelling behavior, mechanical integrity to high burnup, and geometric stability. In addition, the fuel exhibits robust behavior during power-cooling mismatch events under irradiation at high power.

M.K. Meyer; J. Gan; J.-F. Jue; D.D. Keiser; E. Perez; A. Robinson; D.M. Wachs; N. Woolstenhulme; G.L. Hofman; Y.-S. Kim

2014-04-01T23:59:59.000Z

70

Precipitation behavior of Ni-Cr-22 Fe-18 Mo (Hastelloy-X) and Ni-Cr-22 Co-12 Mo (Inconel-617) after isothermal aging  

SciTech Connect (OSTI)

The precipitation behavior of the nickel-base alloys Ni-Cr-22Fe-18Mo (Hastelloy-X) and Ni-Cr-22Co12Mo (Inconel-617) has been investigated as a function of aging temperature. Hastelloy-X shows that M/sub 6/C and TiN are primary precipitates and M/sub 12/C, A/sub 3/B/sub 2/ (approx. = Fe/sub 3/Mo/sub 2/), and M/sub 23/C/sub 6/ are secondary precipitates, while Inconel-617 also has M/sub 6/C and TiN as primary precipitates and M/sub 23/C/sub 6/, M/sub 12/C, and Ni/sub 3/AlTi as secondary precipitates. The characterization has been carried out by metallographic and transmission electron microscopy investigations and by x-ray examinations of electrochemical isolated precipitates.

Kirchhofer, H.; Nickel, H.; Schubert, F.

1984-07-01T23:59:59.000Z

71

Prompt ?-ray spectroscopy of the Mo104 and Mo108 fission fragments  

Science Journals Connector (OSTI)

The level structures of the neutron-rich Mo104 and Mo108 nuclei have been investigated by observing prompt ? rays emitted in the spontaneous fission of Cm248 with the EUROGAM spectrometer. Levels with spins up to 12? have been observed and ? branching obtained. The data can be satisfactorily described when Mo104,108 are considered as axially symmetric nuclei: in Mo104, rotational bands based on the ground state, the one-phonon and the two-phonon ?-vibrational states and a quasiparticle state have been observed, whereas in Mo108 the information is limited to the yrast band and the one phonon ? band. © 1996 The American Physical Society.

A. Guessous; N. Schulz; M. Bentaleb; E. Lubkiewicz; J. L. Durell; C. J. Pearson; W. R. Phillips; J. A. Shannon; W. Urban; B. J. Varley; I. Ahmad; C. J. Lister; L. R. Morss; K. L. Nash; C. W. Williams; S. Khazrouni

1996-03-01T23:59:59.000Z

72

E-Print Network 3.0 - al pb zn Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

et al., 1993; Dejonghe, 1998), resulting in elevated concentrations of Zn, Pb... by atomic absorption spectroscopy (AAS) for Zn, Pb, Mn, Fe, Ca, Mg, K and Al, and by...

73

NO. REV. MO. ~ssessment of Two Year  

E-Print Network [OSTI]

) 200 hours operation of LSPE Central Electronics, 90 hours on timers, 1 hour for thermal battery Operations ·· Thermal/Power Prediction vs Time ·· Qualification Levels #12;MO. ltiV. MO. Assessment of Two and items powered by battery. Is with all functions intact and in- cludes all 8 EPA's (active mode) · 2

Rathbun, Julie A.

74

Structural and Magnetic Properties of Co-Mn-Sb Thin films  

SciTech Connect (OSTI)

Thin Co-Mn-Sb films of different compositions were investigated and utilized as electrodes in alumina based magnetic tunnel junctions with CoFe counterelectrode. The preparation conditions were optimized with respect to magnetic and structural properties. The Co-Mn-Sb/Al-O interface was analyzed by x-ray absorption spectroscopy and magnetic circular dichroism with particular focus on the element-specific magnetic moments. Co-Mn-Sb crystallizes in different complex cubic structures depending on its composition. The magnetic moments of Co and Mn are ferromagnetically coupled in all cases. A tunnel magnetoresistance ratio of up to 24% at 13 K was found and indicates that Co-Mn-Sb is not a ferromagnetic half-metal. These results are compared to recent works on the structure and predictions of the electronic properties.

Meinert, M.; Schmalhorst, J.-M.; Ebke, D.; Liu, N. N.; Thomas, A.; Reiss, G.; Kanak, J.; Stobiecki, T.; Arenholz, E.

2009-12-17T23:59:59.000Z

75

DOE - Office of Legacy Management -- West Lake Landfill - MO...  

Office of Legacy Management (LM)

Lake Landfill - MO 05 FUSRAP Considered Sites Site: West Lake Landfill (MO.05) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition:...

76

Das Mischungsverhalten von Nb3Sn mit Mo3Si, Mo3Ge und Nb3Ge  

Science Journals Connector (OSTI)

Mittels homogenisierter Sinter-und Schmelzproben wird die Bildung von lückenlosen Mischreihen zwischen Nb3Sn mit Mo3Si, Mo3Ge und Nb3Ge nachgewiesen.

H. Holleck; F. Benesovsky; H. Nowotny

1962-01-01T23:59:59.000Z

77

Category:Kansas City, MO | Open Energy Information  

Open Energy Info (EERE)

MO MO Jump to: navigation, search Go Back to PV Economics By Location Media in category "Kansas City, MO" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Kansas City MO Union Electric Co.png SVFullServiceRestauran... 74 KB SVHospital Kansas City MO Union Electric Co.png SVHospital Kansas City... 66 KB SVLargeHotel Kansas City MO Union Electric Co.png SVLargeHotel Kansas Ci... 66 KB SVLargeOffice Kansas City MO Union Electric Co.png SVLargeOffice Kansas C... 65 KB SVMediumOffice Kansas City MO Union Electric Co.png SVMediumOffice Kansas ... 65 KB SVMidriseApartment Kansas City MO Union Electric Co.png SVMidriseApartment Kan... 74 KB SVOutPatient Kansas City MO Union Electric Co.png SVOutPatient Kansas Ci... 66 KB SVPrimarySchool Kansas City MO Union Electric Co.png

78

Effects of graphene on MoO2-MoS2 composite as anode material for lithium-ion batteries  

Science Journals Connector (OSTI)

The electrochemical properties of MoO2-MoS2/graphene electrode were compared with those of MoO2-MoS2, bulk MoS2, and graphene electrode. MoO2-MoS2 composite was prepared by a hydrothermal reaction of molybdenum (...

Moon-Jin Hwang; Kwang Man Kim; Kwang-Sun Ryu

2014-07-01T23:59:59.000Z

79

Thermophysical Properties of U-10MO Alloy  

SciTech Connect (OSTI)

This report provides an overview of thermophysical properties of unirradiated uranium alloyed with ten weight percent molybdenum (U 10Mo), with particular focus on those material properties needed for modeling of new fuels for HPRRs (High Performance Research Reactors). The report contains both historical data available in the literature on U-10Mo, as well as more recent results conducted by the Global Threat Reduction Initiative fuel development program. The main use of the report is intended as a standard U-10Mo alloy properties reference for reactor models and simulations.

A. M. Phillips; G. S. Mickum; D. E. Burkes

2010-11-01T23:59:59.000Z

80

Category:Minneapolis, MN | Open Energy Information  

Open Energy Info (EERE)

MN MN Jump to: navigation, search Go Back to PV Economics By Location Media in category "Minneapolis, MN" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVFullServiceRestauran... 89 KB SVHospital Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVHospital Minneapolis... 85 KB SVLargeHotel Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeHotel Minneapol... 85 KB SVLargeOffice Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeOffice Minneapo... 82 KB SVMediumOffice Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png SVMediumOffice Minneap... 83 KB SVMidriseApartment Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Darlington AL O'Reillys AL  

E-Print Network [OSTI]

CanungraCk Darlington AL Darlington Coom era R O'Reillys AL Beechmont AL Binna Burra AL BackCk Tyungun AL Numinbah Valley AL NerangR Natural Bridge Numinbah AL Little Nerang Dam AL Albert R Bromfleet AL Benobble AL Wolffdene AL Luscombe AL Wongawallan AL Mt Tamborine Canungra Pimpama R Laheys Lookout

Greenslade, Diana

82

DOE - Office of Legacy Management -- Petrolite Corp - MO 08  

Office of Legacy Management (LM)

Petrolite Corp - MO 08 Petrolite Corp - MO 08 FUSRAP Considered Sites Site: PETROLITE CORP (MO.08) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: St. Louis , Missouri MO.08-1 Evaluation Year: 1987 MO.08-4 Site Operations: Research involving test quantities of radioactive materials. MO.08-2 Site Disposition: Eliminated - Licensed - Potential for contamination remote MO.08-3 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium Flouride & Thorium Oxide MO.08-2 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP Also see Documents Related to PETROLITE CORP MO.08-1 - Summary Paper; Title: License History for Petrolite Corporation, St. Louis (MO.8); dated 07/16/93; with three attachments (3

83

TEM Characterization of High Burn-up Microstructure of U-7Mo Alloy  

SciTech Connect (OSTI)

As an essential part of global nuclear non-proliferation effort, the RERTR program is developing low enriched U-Mo fuels (< 20% U-235) for use in research and test reactors that currently employ highly enriched uranium fuels. One type of fuel being developed is a dispersion fuel plate comprised of U-7Mo particles dispersed in Al alloy matrix. Recent TEM characterizations of the ATR irradiated U-7Mo dispersion fuel plates include the samples with a local fission densities of 4.5, 5.2, 5.6 and 6.3 E+21 fissions/cm3 and irradiation temperatures of 101-136?C. The development of the irradiated microstructure of the U-7Mo fuel particles consists of fission gas bubble superlattice, large gas bubbles, solid fission product precipitates and their association to the large gas bubbles, grain subdivision to tens or hundreds of nanometer size, collapse of bubble superlattice, and amorphisation. This presentation will describe the observed microstructures specifically focusing on the U-7Mo fuel particles. The impact of the observed microstructure on the fuel performance and the comparison of the relevant features with that of the high burn-up UO2 fuels will be discussed.

Jian Gan; Brandon Miller; Dennis Keiser; Adam Robinson; James Madden; Pavel Medvedev; Daniel Wachs

2014-04-01T23:59:59.000Z

84

Plutonium Oxidation and Subsequent Reduction by Mn (IV) Minerals  

SciTech Connect (OSTI)

Plutonium sorbed to rock tuff was preferentially associated with manganese oxides. On tuff and synthetic pyrolusite (Mn{sup IV}O{sub 2}), Pu(IV) or Pu(V) was initially oxidized, but over time Pu(IV) became the predominant oxidation state of sorbed Pu. Reduction of Pu(V/VI), even on non-oxidizing surfaces, is proposed to result from a lower Gibbs free energy of the hydrolyzed Pu(IV) surface species versus that of the Pu(V) or Pu(VI) surface species. This work suggests that despite initial oxidation of sorbed Pu by oxidizing surfaces to more soluble forms, the less mobile form of Pu, Pu(IV), will dominate Pu solid phase speciation during long term geologic storage. The safe design of a radioactive waste or spent nuclear fuel geologic repository requires a risk assessment of radionuclides that may potentially be released into the surrounding environment. Geochemical knowledge of the radionuclide and the surrounding environment is required for predicting subsurface fate and transport. Although difficult even in simple systems, this task grows increasingly complicated for constituents, like Pu, that exhibit complex environmental chemistries. The environmental behavior of Pu can be influenced by complexation, precipitation, adsorption, colloid formation, and oxidation/reduction (redox) reactions (1-3). To predict the environmental mobility of Pu, the most important of these factors is Pu oxidation state. This is because Pu(IV) is generally 2 to 3 orders of magnitude less mobile than Pu(V) in most environments (4). Further complicating matters, Pu commonly exists simultaneously in several oxidation states (5, 6). Choppin (7) reported Pu may exist as Pu(IV), Pu(V), or Pu(VI) oxic natural groundwaters. It is generally accepted that plutonium associated with suspended particulate matter is predominantly Pu(IV) (8-10), whereas Pu in the aqueous phase is predominantly Pu(V) (2, 11-13). The influence of the character of Mn-containing minerals expected to be found in subsurface repository environments on Pu oxidation state distributions has been the subject of much recent research. Kenney-Kennicutt and Morse (14), Duff et al. (15), and Morgenstern and Choppin (16) observed oxidation of Pu facilitated by Mn(IV)-bearing minerals. Conversely, Shaughnessy et al. (17) used X-ray Absorption near-edge spectroscopy (XANES) to show reduction of Pu(VI) by hausmannite (Mn{sup II}Mn{sub 2}{sup III}O{sub 4}) and manganite ({gamma}-Mn{sup III}OOH) and Kersting et al., (18) observed reduction of Pu(VI) by pyrolusite (Mn{sup IV}O{sub 2}). In this paper, we attempt to reconcile the apparently conflicting datasets by showing that Mn-bearing minerals can indeed oxidize Pu, however, if the oxidized species remains on the solid phase, the oxidation step competes with the formation of Pu(IV) that becomes the predominant solid phase Pu species with time. The experimental approach we took was to conduct longer term (approximately two years later) oxidation state analyses on the Pu sorbed to Yucca Mountain tuff (initial analysis reported by Duff et al., (15)) and measure the time-dependant changes in the oxidation state distribution of Pu in the presence of the Mn mineral pyrolusite.

KAPLAN, DANIEL

2005-09-13T23:59:59.000Z

85

E-Print Network 3.0 - al2o3 fgm joints Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 . D-10587 Berlin Summary: to such kind of FGMs as: some ce- ramicceramic FGMs, i.e. TiCSiC, MoSi2Al2O3 and MoSi2SiC, and also some ce... the behavior of cracks in a graded...

86

Pulsed laser deposition growth of heteroepitaxial YBa2Cu3O7/La0.67Ca0.33MnO3 superlattices on NdGaO3 and Sr0.7La0.3Al0.65Ta0.35O3 substrates  

SciTech Connect (OSTI)

Heteroepitaxial superlattices of [YBa{sub 2}Cu{sub 3}O{sub 7}(n)/La{sub 0.67}Ca{sub 0.33}MnO{sub 3}(m)]{sub x} (YBCO/LCMO), where n and m are the number of YBCO and LCMO monolayers and x the number of bilayer repetitions, have been grown with pulsed laser deposition on NdGaO{sub 3} (110) and Sr{sub 0.7}La{sub 0.3}Al{sub 0.65}Ta{sub 0.35}O{sub 3} (001). These substrates are well lattice matched with YBCO and LCMO and, unlike the commonly used SrTiO{sub 3}, they do not give rise to complex and uncontrolled strain effects at low temperature. The growth dynamics and the structure have been studied in situ with reflection high-energy electron diffraction and ex situ with scanning transmission electron microscopy, x-ray diffraction, and neutron reflectometry. The individual layers are found to be flat and continuous over long lateral distances with sharp and coherent interfaces and with a well-defined thickness of the individual layer. The only visible defects are antiphase boundaries in the YBCO layers that originate from perovskite unit-cell height steps at the interfaces with the LCMO layers. We also find that the first YBCO monolayer at the interface with LCMO has an unusual growth dynamics and is lacking the CuO chain layer, while the subsequent YBCO layers have the regular Y-123 structure. Accordingly, the CuO{sub 2} bilayers at both the LCMO/YBCO and the YBCO/LCMO interfaces are lacking one of their neighboring CuO chain layers and, thus, half of their hole-doping reservoir. Nevertheless, from electric transport measurements on a superlattice with n = 2 we obtain evidence that the interfacial CuO{sub 2} bilayers remain conducting and even exhibit the onset of a superconducting transition at very low temperature. Finally, we show from dc magnetization and neutron reflectometry measurements that the LCMO layers are strongly ferromagnetic.

Malik, V. K. [University of Fribourg; Marozau, I. [University of Fribourg; Das, S. [University of Fribourg; Doggett, B. [University of Fribourg; Satapathy, D. K. [University of Fribourg; Uribe-Laverde, M. A. [University of Fribourg; Biskup, Nevenko [ORNL; Varela del Arco, Maria [ORNL; Schneider, C. W. [Paul Scherrer Institut, Villigen, Switzerland; Marcelot, C. [Paul Scherrer Institut, Villigen, Switzerland; Stahn, J. [Paul Scherrer Institut, Villigen, Switzerland; Bernhard, C. [University of Fribourg

2012-01-01T23:59:59.000Z

87

Cómo funcionan las Células de Combustible  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cómo funcionan las Células de Combustible Cómo funcionan las Células de Combustible Diagrama: Como funciona un MPE de combustible de célula. 1. El combustible de hidrógeno es canalizado a través de un campo de placas de flujo para el ánodo al otro lado de la pila de combustible, mientras que el oxígeno del aire se canaliza hacia el cátodo del otro lado de la celda. 2. En el ánodo, un catalizador de platino hace que el hidrógeno se divida en iones positivos de hidrógeno (protones) y electrones de carga negativa. 3. La Membrana de Electrolito Polimérico (MPE) sólo permite que los iones de carga positiva pasen a través de ella hacia el cátodo. Los electrones de carga negativa deben viajar a lo largo de un circuito externo hacia el cátodo, creando una corriente eléctrica. 4. En el cátodo, los electrones y los iones positivos de hidrógeno se combinan con el oxígeno para formar agua, que fluye fuera de la célula.

88

Lithium-active molybdenum trioxide coated LiNi0.5Co0.2Mn0.3O2 cathode material with enhanced electrochemical properties for lithium-ion batteries  

Science Journals Connector (OSTI)

Abstract LiNi0.5Co0.2Mn0.3O2 cathode material was coated with MoO3 via a wet coating process. X-ray diffraction patterns show that the coating surface is composed of MoO3 and Li2MoO4. The 3 wt.% MoO3 coated LiNi0.5Co0.2Mn0.3O2 cathode (Li2MoO4 is treated as equivalent mole of MoO3) exhibits the best improved cycling performance. It performs a capacity retention of 90.9% after 100 cycles while that of the pristine material is only 82.8%. After being coated by 3 wt.% MoO3, the rate performance is also greatly enhanced and the charge transfer resistance is greatly decreased. The improvement of electrochemical performance is related to the fact that the coating layer diminishes the side reactions between the cathode and the electrolyte.

Feng Wu; Jun Tian; Yuefeng Su; Yibiao Guan; Yi Jin; Zhao Wang; Tao He; Liying Bao; Shi Chen

2014-01-01T23:59:59.000Z

89

Comparative Study on the Corrosion Resistance of Fe-Based Amorphous Metal, Borated Stainless Steel and Ni-Cr-Mo-Gd Alloy  

SciTech Connect (OSTI)

Iron-based amorphous alloy Fe{sub 49.7}Cr{sub 17.7}Mn{sub 1.9}Mo{sub 7.4}W{sub 1.6}B{sub 15.2}C{sub 3.8}Si{sub 2.4} was compared to borated stainless steel and Ni-Cr-Mo-Gd alloy on their corrosion resistance in various high-concentration chloride solutions. The melt-spun ribbon of this iron-based amorphous alloy have demonstrated a better corrosion resistance than the bulk borated stainless steel and the bulk Ni-Cr-Mo-Gd alloy, in high-concentration chloride brines at temperatures 90 deg. C or higher. (authors)

Lian, Tiangan; Day, Daniel; Hailey, Phillip; Choi, Jor-Shan; Farmer, Joseph [Lawrence Livermore National Laboratory, Livermore, CA, 94550 (United States)

2007-07-01T23:59:59.000Z

90

Magnetism of Mn layers on Fe(100)  

Science Journals Connector (OSTI)

The magnetic state of epitaxial overlayers of Mn grown on Fe(100) is studied using spin-polarized electron energy loss spectroscopy. Nonzero exchange asymmetries are found, demonstrating that the surface layer of the Mn overlayers has a net magnetic moment. The exchange asymmetry oscillates with a period of about two atomic layers as the Mn overlayer thickness is varied, proving that the Mn forms ferromagnetic (100) sheets and that the sheets align antiferromagnetically. The average Mn exchange splitting is found to be 2.9 eV, indicating a magnetic moment of the order 3?B.

T. G. Walker and H. Hopster

1993-08-01T23:59:59.000Z

91

Oxidation, Reduction, and Condensation of Alcohols over (MO3)3 (M=Mo, W) Nanoclusters  

SciTech Connect (OSTI)

The reactions of deuterated methanol, ethanol, 1-propanol, 1-butanol, 2-propanol, 2-butanol and t-butanol over cyclic (MO3)3 (M = Mo, W) clusters were studied experimentally with temperature programmed desorption (TPD) and theoretically with coupled cluster CCSD(T) theory and density functional theory. The reactions of two alcohols per M3O9 cluster are required to provide agreement with experiment for D2O release, dehydrogenation and dehydration. The reaction begins with the elimination of water by proton transfers and forms an intermediate dialkoxy species which can undergo further reaction. Dehydration proceeds by a ? hydrogen transfer to a terminal M=O. Dehydrogenation takes place via an ? hydrogen transfer to an adjacent MoVI = O atom or a WVI metal center with redox involved for M = Mo and no redox for M = W. The two channels have comparable activation energies. H/D exchange to produce alcohols can take place after olefin is released or via the dialkoxy species depending on the alcohol and the cluster. The Lewis acidity of the metal center with WVI being larger than MoVI results in the increased reactivity of W3O9 over Mo3O9 for dehydrogenation and dehydration.

Fang, Zongtang; Li, Zhenjun; Kelley, Matthew S.; Kay, Bruce D.; Li, Shenggang; Hennigan, Jamie M.; Rousseau, Roger J.; Dohnalek, Zdenek; Dixon, David A.

2014-10-02T23:59:59.000Z

92

Electronic structure calculations of small Al n (n=2–8) clusters  

Science Journals Connector (OSTI)

The electronic states of small Al n (n...=2–8) clusters have been calculated with a relativistic ab-initio MO-LCAO Dirac-Fock-Slater method using numerical atomic DFS wave-funct...

T. Bastug; W. D. Sepp; B. Fricke…

1992-01-01T23:59:59.000Z

93

ALS@20  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

feed-image feed-image Digg: ALSBerkeleyLab Facebook Page: 208064938929 Flickr: advancedlightsource Twitter: ALSBerkeleyLab YouTube: AdvancedLightSource Home About the ALS ALS@20 ALS@20 ALS@20 Kick-Off Celebration Print On Friday, January 11, the Advanced Light Source celebrated the beginning of its 20th anniversary year with a brunch attended by more than 150 current and past staff members. After introductory remarks describing the trials and tribulations encountered during the construction of the ALS from former Director Jay Marx, current ALS Scientific Director Steve Kevan and Director Roger Falcone talked about the progress of the facility over the years. Attendees were then able to view more than 500 historical photos of the ALS and its staff displayed around the room.

94

U-Mo Foil/Cladding Interactions in Friction Stir Welded Monolithic RERTR Fuel Plates  

SciTech Connect (OSTI)

Interaction between U-Mo fuel and Al has proven to dramatically impact the overall irradiation performance of RERTR dispersion fuels. It is of interest to better understand how similar interactions may affect the performance of monolithic fuel plates, where a uranium alloy fuel is sandwiched between aluminum alloy cladding. The monolithic fuel plate removes the fuel matrix entirely, which reduces the total surface area of the fuel that is available to react with the aluminum and moves the interface between the fuel and cladding to a colder region of the fuel plate. One of the major fabrication techniques for producing monolithic fuel plates is friction stir welding. This paper will discuss the interactions that can occur between the U-Mo foil and 6061 Al cladding when applying this fabrication technique. It has been determined that the time at high temperatures should be limited as much as is possible during fabrication or any post-fabrication treatment to reduce as much as possible the interactions between the foil and cladding. Without careful control of the fabrication process, significant interaction between the U-Mo foil and Al alloy cladding can result. The reaction layers produced from such interactions can exhibit notably different morphologies vis-à-vis those typically observed for dispersion fuels.

D.D. Keiser; J.F. Jue; C.R. Clark

2006-10-01T23:59:59.000Z

95

Mn-Fe base and Mn-Cr-Fe base austenitic alloys  

DOE Patents [OSTI]

Manganese-iron base and manganese-chromium-iron base austenitic alloys designed to have resistance to neutron irradiation induced swelling and low activation have the following compositions (in weight percent): 20 to 40 Mn; up to about 15 Cr; about 0.4 to about 3.0 Si; an austenite stabilizing element selected from C and N, alone or in combination with each other, and in an amount effective to substantially stabilize the austenite phase, but less than about 0.7 C, and less than about 0.3 N; up to about 2.5 V; up to about 0.1 P; up to about 0.01 B; up to about 3.0 Al; up to about 0.5 Ni; up to about 2.0 W; up to about 1.0 Ti; up to about 1.0 Ta; and with the remainder of the alloy being essentially iron.

Brager, Howard R. (Richland, WA); Garner, Francis A. (Richland, WA)

1987-01-01T23:59:59.000Z

96

Al2O3 coating for improving thermal stability performance of manganese spinel battery  

Science Journals Connector (OSTI)

The synthesis of Al2O3-coated and uncoated LiMn2O4 by solid-state method and fabrication of LiMn2O4/graphite battery were described. The structure and morphology of the powders were characterized by X-ray diffrac...

Yun-jian Liu ???; Hua-jun Guo ???…

2011-12-01T23:59:59.000Z

97

DOE - Office of Legacy Management -- St Louis University - MO...  

Office of Legacy Management (LM)

St Louis University - MO 0-02 FUSRAP Considered Sites Site: ST. LOUIS UNIVERSITY (MO.0-02) Eliminated from consideration under FUSRAP - As of 1987 the facility operated under an...

98

Activation of the Sulfhydryl Group by Mo Centers: Kinetics of...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mo(mu-SH)Mo Complex Abstract: This paper provides evidence from kinetic experiments and electronic structure calculations of a significantly reduced S-H bond strength in the...

99

Monolayer MoS2 Heterojunction Solar Cells  

Science Journals Connector (OSTI)

Monolayer MoS2 Heterojunction Solar Cells ... molybdenum disulfide; heterojunction solar cell; 2D material; monolayer; chemical vapor deposition ...

Meng-Lin Tsai; Sheng-Han Su; Jan-Kai Chang; Dung-Sheng Tsai; Chang-Hsiao Chen; Chih-I Wu; Lain-Jong Li; Lih-Juann Chen; Jr-Hau He

2014-07-21T23:59:59.000Z

100

Industry @ ALS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Industry @ ALS Industry @ ALS Industry @ ALS Concrete Industry Benefits from Ancient Romans and the ALS Print Thursday, 17 October 2013 14:24 New insights into the Romans' ingenious concrete harbor structures emerging from ALS beamline research could move the modern concrete industry toward its goal of a reduced carbon footprint. Summary Slide Read more... Moving Industry Forward: Finding the Environmental Opportunity in Biochar Print Thursday, 12 September 2013 08:41 Using ALS Beamlines 10.3.2 and 8.3.2, the Environmental Protection Agency (EPA) is currently investigating how biochar sorbs environmental toxins and which kinds of biochar are the most effective. The possibilities for widespread use have already launched entrepreneurial commercial ventures. Summary Slide

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Electric resistance and magnetoresistance of a two-layer epitaxial heterostructure (30 nm)La0.67Ca0.33MnO3/(30 nm)La0.67Ba0.33MnO3  

Science Journals Connector (OSTI)

Two-layer epitaxial heterostructures (30 nm)La0.67Ca0.33MnO3/(30 nm)La0.67Ba0.33MnO3 (LCMO/LBMO) have been grown by laser deposition on single crystal (001)LaAlO3 (LAO) substrates. In this system, the upper (LCMO...

Yu. A. Boikov; V. A. Danilov

2005-12-01T23:59:59.000Z

102

ALS Visitors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

including Ethan Crumlin (at right) about current research in energy storage and battery efficiency. Berkeleyside Editor Lance Knoble toured the ALS and Berkeley Lab with...

103

Mo Supply Chain for Nuclear Medicine Ladimer S. Nagurney  

E-Print Network [OSTI]

The 99 Mo Supply Chain for Nuclear Medicine Ladimer S. Nagurney Department of Electrical November 13, 2012 #12;Nuclear Medicine: Meeting Patient Needs with 99 Mo Ladimer S. Nagurney The 99 Mo Supply Chain #12;Background and Motivation Study of Nuclear Medicine Supply Chains is a combination

Nagurney, Anna

104

Giant magnetothermal conductivity in the NiMnIn ferromagnetic shape memory alloys  

E-Print Network [OSTI]

­10 It is well known that colossal magne- toresistance CMR in the Mn-based perovskites is closely related, this transition can be shifted to lower temperature and even totally suppressed by a magnetic field. The magnetic: 10.1063/1.2753710 Very recently, Kainuma et al. discovered magnetic-field- induced shape recovery

Zexian, Cao

105

Development of CaMoO4 crystal scintillators for double beta decay experiment with 100-Mo  

E-Print Network [OSTI]

Energy resolution, alpha/beta ratio, pulse-shape discrimination for gamma rays and alpha particles, temperature dependence of scintillation properties, and radioactive contamination were studied with CaMoO4 crystal scintillators. A high sensitivity experiment to search for neutrinoless double beta decay of 100-Mo by using CaMoO4 scintillators is discussed.

A. N. Annenkov; O. A. Buzanov; F. A. Danevich; A. Sh. Georgadze; S. K. Kim; H. J. Kim; Y. D. Kim; V. V. Kobychev; V. N. Kornoukhov; M. Korzhik; J. I. Lee; O. Missevitch; V. M. Mokina; S. S. Nagorny; A. S. Nikolaiko; D. V. Poda; R. B. Podviyanuk; D. J. Sedlak; O. G. Shkulkova; J. H. So; I. M. Solsky; V. I. Tretyak; S. S. Yurchenko

2007-07-10T23:59:59.000Z

106

E-Print Network 3.0 - al-si alloy reinforced Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

novembre1993 Summary: number): Li, Al, Si, Ca, Mn,Cu, Zn, Sr, Y, Zr, Ag and Rare Earth (RE) elements. Some minor alloying... ,which normally are considered as typical for...

107

ALS Visitors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Visitors ALS Visitors ALS Visitors Print Wednesday, 29 July 2009 00:00 ALS staff members host a variety of scientific, educational, government, and community-related tours each month. November 2013 poneman U.S. Deputy Secretary of Energy Daniel Poneman visited Berkeley Lab on Friday, Nov. 15, during a brief stay in the Bay Area. Glenn Mara of the University of California Office of the President and Aundra Richards of the DOE Berkeley Site Office joined Deputy Laboratory Director Horst Simon's welcome. They updated Poneman on the lab's future initiatives and current capital projects and heard briefings on cyber security, computing, and the Joint BioEnergy Institute. As second-in-command at DOE, Poneman is responsible for assisting the Secretary of Energy in the management and operations of the agency and acting on his behalf when necessary.During his tour of the ALS, Poneman (right) spoke with Ken Goldberg (Materials Sciences Division) at the CXRO beamline.

108

Processing, Microstructure, and Properties of Multiphase Mo Silicide Alloys  

SciTech Connect (OSTI)

Multiphase Mo silicide alloys containing T2 (Mo{sub 5}SiB{sub 2}), Mo{sub 3}Si and Mo phases where prepared by both melting and casting (M and C) and powder metallurgical (PM) processes. Glassy phases are observed in PM materials but not in M and C materials. Microstructural studies indicate that the primary phase is Mo-rich solid solution in alloys containing {le}(9.4Si+13.8B, at. %) and T2 in alloys with {ge}(9.8Si+14.6B). An eutectic composition is estimated to be close to Mo-9.6Si-14.2B. The mechanical properties of multiphase silicide alloys were determined by hardness, tensile and bending tests at room temperature. The multiphase alloy MSB-18 (Mo-9.4Si-13.8B) possesses a flexure strength distinctly higher than that of MoSi{sub 2} and other Mo{sub 5}Si{sub 3} silicide alloys containing no Mo particles. Also, MSB-18 is tougher than MoSi{sub 2} by a factor of 4.

Heatherly, L.; Liu, C.T.; Schneibel, J.H.

1998-11-30T23:59:59.000Z

109

Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Building of a Novel Mn12 Single Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic Triangles Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic Triangles Print Wednesday, 06 July 2011 12:58 Assembly of triangular {MnIII3(O)(salox)3}+ fragments mediated by azido ligands, results in the dodecanuclear [Mn12O4(salox)12(N3)4(MeOH)4(H2O)2] complex with S = 8 ground state and SMM response. After the discovery of the Single-Molecule-Magnet (SMM) behaviour of [Mn6(O)2(salox)6(R-COO)2] (salox = salicylaldoxime, R = Me, Ph) complexes in 2004,1 the chemistry of this family of [Mn6] clusters has been studied in depth: the systematic change of the carboxylato ligands, the study of substitutedR-saloxH2 related ligands,2 the effect of variation of the oxidation state,3 the response under pressure4 or the one-dimensional assembly of [Mn6] units into chains of clusters5 with Single-Chain-Magnet behaviour in some cases,5c,d turn this system into one of the best known in the SMM field. One of the main goals of this work, developed by Brechin et al. has been to modulate the value of the ground spin level, reaching the maximum possible spin S = 12 by means of the adequate choice of methyl or ethyl substituted salicylaldoximes and the understanding of the structural features that control the coupling inside the triangles. Article Link (PDF)

110

Missouri Department of National Resources Energy Center Mo DNR | Open  

Open Energy Info (EERE)

Department of National Resources Energy Center Mo DNR Department of National Resources Energy Center Mo DNR Jump to: navigation, search Name Missouri Department of National Resources Energy Center (Mo DNR) Place Jefferson City, Missouri Zip 65102 Product Mo DNR manages the Energy Revolving Fund which assists public organisations in Missouri in financing energy efficient projects for their facilities. References Missouri Department of National Resources Energy Center (Mo DNR)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Missouri Department of National Resources Energy Center (Mo DNR) is a company located in Jefferson City, Missouri . References ↑ "Missouri Department of National Resources Energy Center (Mo

111

Performance of Mo/Au TES microcalorimeters  

Science Journals Connector (OSTI)

We are developing X-ray calorimeters to meet the specifications of the Constellation-X mission. Each calorimeter consists of a transition-edge-sensor (TES) thermometer which is suspended on a silicon-nitride membrane. Our TES thermometers are Mo/Au bilayer films that are biased in the sharp phase transition between the superconducting and normal-metal states. These calorimeters have demonstrated very good energy resolutions: 2.4 eV at 1.5 keV and 3.7 eV at 3.3 keV. The energy resolutions are limited by thermal noise and Johnson noise (which are intrinsic to any resistive calorimeter) plus excess noise. The excess noise which is several times larger than the Johnson noise is consistent with frequency-independent voltage noise in the TES. Detailed measurements of one Mo/Au TES demonstrate that the excess noise is independent of the voltage applied to the TES over a range of biases at the same TES resistance. The magnitude of the excess noise is smallest at the high-resistance end of the phase transition. We also compared noise in square Mo/Au TES’s ranging in size from 300 microns to 600 microns to learn how the excess noise is affected by the geometry of the TES.

Mark A. Lindeman; Regis P. Brekosky; Enectali Figueroa-Feliciano; Fred M. Finkbeiner; Mary Li; Caroline K. Stahle; Carl M. Stahle; Nilesh Tralshawala

2002-01-01T23:59:59.000Z

112

Microsoft Word - Mn.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 5 Structural Determination of Marine Bacteriogenic Manganese Oxides John R. Bargar, Samuel M. Webb (Stanford Synchrotron Radiation Laboratory), and Bradley M. Tebo (Oregon Health and Science University) Bacterial oxidation of Mn(II) impacts the global geochemical cycling of carbon, nitrogen, sulfur, nutrients, and contaminants in the environment. Manganese is abundant in the biosphere (~10 14 Kg of suspended and dissolved manganese in the oceans) and is second only to iron in relative terrestrial abun- dance of transition metals. Manganese is an important nutrient in the marine water column and is fundamentally required for photosynthesis. The acquisition of manganese by organisms and the biogeochemistry of manganese in the oceans is therefore an

113

ALS Visitors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Visitors Print ALS Visitors Print ALS staff members host a variety of scientific, educational, government, and community-related tours each month. November 2013 poneman U.S. Deputy Secretary of Energy Daniel Poneman visited Berkeley Lab on Friday, Nov. 15, during a brief stay in the Bay Area. Glenn Mara of the University of California Office of the President and Aundra Richards of the DOE Berkeley Site Office joined Deputy Laboratory Director Horst Simon's welcome. They updated Poneman on the lab's future initiatives and current capital projects and heard briefings on cyber security, computing, and the Joint BioEnergy Institute. As second-in-command at DOE, Poneman is responsible for assisting the Secretary of Energy in the management and operations of the agency and acting on his behalf when necessary.During his tour of the ALS, Poneman (right) spoke with Ken Goldberg (Materials Sciences Division) at the CXRO beamline.

114

Al Weinrub  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Al Weinrub Al Weinrub Author, "COMMUNITY POWER: Decentralized Renewable Energy in California" Member, Sierra Club California Clean Energy-Climate CommitteeMember, Steering Committee, Bay Area Clean Energy Alliance al.weinrub@comcast.net This speaker was a visiting speaker who delivered a talk or talks on the date(s) shown at the links below. This speaker is not otherwise associated with Lawrence Berkeley National Laboratory, unless specifically identified as a Berkeley Lab staff member. Al Weinrub is a member of the Sierra Club California Energy-Climate Committee and serves on the Steering Committee of the Bay Area's Local Clean Energy Alliance. He is the author of COMMUNITY POWER: Decentralized Renewable Energy in California (http://www.localcleanenergy.org/Community-Power-Publication)

115

DOE - Office of Legacy Management -- United Nuclear Corp - MO 0-03  

Office of Legacy Management (LM)

United Nuclear Corp - MO 0-03 United Nuclear Corp - MO 0-03 FUSRAP Considered Sites Site: UNITED NUCLEAR CORP. (MO.0-03) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: Mallinckrodt Chemical Works Mallinckrodt Nuclear Corporation MO.0-03-1 MO.0-03-2 Location: Hematite , Missouri MO.0-03-1 Evaluation Year: Circa 1987 MO.0-03-3 Site Operations: Commercial fuel fabrication operation. Licensed to reclaim unirradiated enriched uranium from scrap generated in fuel fabrication and fuel material preparation. MO.0-03-1 MO.0-03-2 MO.0-03-3 MO.0-03-4 Site Disposition: Eliminated - NRC licensed - Commercial operations MO.0-03-3 MO.0-03-5 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium MO.0-03-3 Radiological Survey(s): None Indicated

116

ALS Visitors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Quick Facts Quick Facts ALS Visitors Print ALS staff members host a variety of scientific, educational, government, and community-related tours each month. November 2013 poneman U.S. Deputy Secretary of Energy Daniel Poneman visited Berkeley Lab on Friday, Nov. 15, during a brief stay in the Bay Area. Glenn Mara of the University of California Office of the President and Aundra Richards of the DOE Berkeley Site Office joined Deputy Laboratory Director Horst Simon's welcome. They updated Poneman on the lab's future initiatives and current capital projects and heard briefings on cyber security, computing, and the Joint BioEnergy Institute. As second-in-command at DOE, Poneman is responsible for assisting the Secretary of Energy in the management and operations of the agency and acting on his behalf when necessary.During his tour of the ALS, Poneman (right) spoke with Ken Goldberg (Materials Sciences Division) at the CXRO beamline.

117

ENVIRONMENT AL REVI  

Broader source: Energy.gov (indexed) [DOE]

ENVIRONMENT ENVIRONMENT AL REVI EW for CATEG ORI CAL EXCLUS ION DETE RMINATION Rocky Mo unta in Region, Weste rn A rea Power Administra tion Stru cture Replace ment Fla min g Go rge-Vern a l No.3 138-kV tra nsmiss ion lin e (Struct ure No. 25/6) Spr ing 201 2 A. Ilricf J)cscription of Proposal: Western Area Power Adm inistration (Western) proposes to replace Structure No. 25/6 on the Flaming Gorge-Vernal No.3 138-kV transmission line. The structure is located on Bureau of Land Management lands in Uintah County. Utah (Township 3S, Range 22E, Section 7; Donkey Flat 7.5' USGS quadrangle). Work consists of removal and in-kind replacement of the wood H-frame structure and anchors utilizing rubber tired vehicles. crane, bucket truck, pole trucks/trailers, auger rig. and pick-up trucks. All work will be conducted on Western's existing

118

Neutron Hole States of Mo-93,95  

E-Print Network [OSTI]

I I I0 IO 20 3040 50 60 0 I I I I I I IO 20 30 40 5Q 60 IO 2- 0 I I I lo 20 X) 40 50 60 I j I I I l 0 lo 20 30 4050 60 8, .(deg) 8,~. (deg) {deg) {deg) FIG. 2. Angular distributions for the +Mo(P, d)93Mo reaction. The errors sho....20 l X=2 0.769 2=4 0.8l6 2=2 Mo(d, t) Mo l IGO= P IQ IO? IG 10 IQ 10 IGO? IQ I I I I l.092 2=2+4 = IO IQ)- l.674 All the angular distributions obtained along mith the D%'BA fits for the states analyzed in the "Mo(d, t)9'Mo...

Bindal, P. K.; Youngblood, David H.; Kozub, R. L.

1977-01-01T23:59:59.000Z

119

NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA  

Gasoline and Diesel Fuel Update (EIA)

0.00-1.99 0.00-1.99 2.00-2.99 3.00-3.99 4.00-4.99 5.00-5.99 6.00-6.99 7.00+ NJ WY AK AL CA AR CO CT DE FL GA HI ID KS IL IN IA IA KY LA ME MI MA MD MN MS MT MO NE ND OH NV NM NY NH NC OK OR PA RI SC SD TN TX UT VT WA WV WI AZ VA DC 0.00-1.99 2.00-2.99 3.00-3.99 4.00-4.99 5.00-5.99 6.00-6.99 7.00+ 18. Average Price of Natural Gas Delivered to U.S. Onsystem Industrial Consumers, 1996 (Dollars per Thousand Cubic Feet) Figure 19. Average Price of Natural Gas Delivered to U.S. Electric Utilities, 1996 (Dollars per Thousand Cubic Feet) Figure Sources: Federal Energy Regulatory Commission (FERC), Form FERC-423, "Monthly Report of Cost and Quality of Fuels for Electric Plants," and Energy Information Administration (EIA), Form EIA-176, "Annual Report of Natural and Supplemental Gas Supply and Disposition." Note: In 1996, consumption of natural gas for agricultural use

120

Microsoft Word - AL2000-05.doc  

Broader source: Energy.gov (indexed) [DOE]

Παγε 1 οφ 2 Παγε 1 οφ 2 Subject: DOE Authorized Subcontract for Use by DOE Management and Operating (M&O) Contractors with New Independent States' Scientific Institutes through the Science and Technology Center in Ukraine References: DEAR 970.7103 - Contractor Purchasing System When is this Acquisition Letter (AL) Effective? This AL is effective 10 business days from the date of issuance. When Does this AL Expire? This AL remains in effect until superseded or canceled. Who is the Point of Contact? Contact Robert Webb of the Office of Procurement and Assistance Policy at (202) 586-8264, or via e-mail at Robert.Webb@hq.doe.gov Visit our website at www.pr.doe.gov for information on Acquisition Letters and other policy

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Microsoft Word - AL2000-01.doc  

Broader source: Energy.gov (indexed) [DOE]

Letters (AL) that remain in effect are identified below. All other previously issued ALs have been Letters (AL) that remain in effect are identified below. All other previously issued ALs have been superseded by a formal rulemaking, incorporated into other guidance, and/or canceled. * * * * * * * * * * * * * * * Acquisition Letters Remaining In Effect Number Date Subject 93-4 04/07/93 Displaced Workers Benefits Program 94-19 12/09/94 Basic Labor Policies Fringe Benefits 95-06 06/28/95 Personal Property Letter System 95-14 11/17/95 Subcontracts under the New Independent States - Industrial Partnering Program 96-05 05/10/96 Trade Agreements 96-09 09/16/96 Full and Open Competition - Management and Operating Contracts 97-02 01/20/97 M&O Legal Services Subcontracts

122

Temperature-dependent nanocrystal formation in Mo/Si multilayers  

SciTech Connect (OSTI)

We investigated the nanocrystallinity of Mo/Si multilayers as a function of the Mo:Si ratio in the period using grazing incidence and wide angle x-ray diffraction, both for as-deposited samples and after thermal annealing up to 800 deg. C under UHV conditions. The research was performed on multilayers, as applied for extreme UV lithography with period thickness of approximately 7 nm. The as-deposited multilayer nanostructure was found to depend on the Mo to Si layer thickness ratio. For intermediate Mo fractions in the multilayer period, a four layer system is formed, with amorphous Si and polycrystalline Mo layers separated by silicide interfaces, while for low and high Mo fractions, a two component system is formed, respectively, consisting of a pure Mo layer (in the case of a high Mo fraction) or pure Si layer (low Mo fraction) separated by a single silicide interface. Using the crystallographic properties of the multilayer during annealing, we describe the continuous development of the multilayer structure and growth of the silicide interfaces. Our study has led to an explanatory model which is based on the total free energy minimization of the multilayer system. Finally, a phase transition to a crystalline silicide is observed at T>300 deg. C. This phase transition can also be explained by minimization of the total free energy.

Nedelcu, I.; Kruijs, R. W. E. van de; Yakshin, A. E.; Bijkerk, F. [FOM-Institute for Plasma Physics Rijnhuizen, P.O. Box. 1207, 3430 BE Nieuwegein (Netherlands)

2007-12-15T23:59:59.000Z

123

Novel Solar Energy Conversion Materials by Design of Mn(II) Oxides  

SciTech Connect (OSTI)

Solar energy conversion materials need to fulfill simultaneously a number of requirements in regard of their band-structure, optical properties, carrier transport, and doping. Despite their desirable chemical properties, e.g., for photo-electrocatalysis, transition-metal oxides usually do not have desirable semiconducting properties. Instead, oxides with open cation d-shells are typically Mott or charge-transfer insulators with notoriously poor transport properties, resulting from large effective electron/hole masses or from carrier self-trapping. Based on the notion that the electronic structure features (p-d interaction) supporting the p-type conductivity in d10 oxides like Cu2O and CuAlO2 occurs in a similar fashion also in the d5 (high-spin) oxides, we recently studied theoretically the band-structure and transport properties of the prototypical binary d5 oxides MnO and Fe2O3 [PRB 85, 201202(R)]. We found that MnO tends to self-trap holes by forming Mn+III, whereas Fe2O3 self-traps electrons by forming Fe+II. However, the self-trapping of holes is suppressed by when Mn is tetrahedrally coordinated, which suggests specific routes to design novel solar conversion materials by considering ternary Mn(II) oxides or oxide alloys. We are presenting theory, synthesis, and initial characterization for these novel energy materials.

Lany, S.; Peng, H.; Ndione, P.; Zakutayev, A.; Ginley, D. S.

2013-01-01T23:59:59.000Z

124

SUN ET AL. VOL. 7 ' NO. 4 ' 35063511 ' 2013 www.acsnano.org  

E-Print Network [OSTI]

SUN ET AL. VOL. 7 ' NO. 4 ' 3506­3511 ' 2013 www.acsnano.org 3506 March 11, 2013 C 2013 American Chemical Society Observation of a Burstein�Moss Shift in Rhenium-Doped MoS2 Nanoparticles Qi -C. Sun . nanoparticles . Burstein�Moss effect . spin�orbit coupling . optical conductivity ARTICLE #12;SUN ET AL. VOL. 7

125

Temperature dependence of the interfacial spin polarization of La2/3Sr1/3MnO3  

Science Journals Connector (OSTI)

We have measured the tunneling magnetoresistance (TMR) of magnetic tunnel junctions based on La2/3Sr1/3MnO3 and various barrier materials (SrTiO3, TiO2, LaAlO3). The interfacial spin polarization of La2/3Sr1/3MnO3 is derived from the TMR and we find that its temperature dependence strongly resembles that of the bulk magnetization and hardly depends on the barrier material. However, the apparent Curie temperature is some 60 K lower. This dependence contrasts with that of the spin polarization of a free La2/3Sr1/3MnO3 surface, as probed by spin-polarized photoemission [J.-H. Park et al., Phys. Rev. Lett. 81, 1953 (1998)], thus evidencing that surfaces and interfaces have very different properties in manganites.

V. Garcia, M. Bibes, A. Barthélémy, M. Bowen, E. Jacquet, J.-P. Contour, and A. Fert

2004-02-12T23:59:59.000Z

126

Towards consistent chronology in the early Solar System: high resolution 53Mn-53Cr chronometry for chondrules.  

SciTech Connect (OSTI)

New high-precision {sup 53}Mn-{sup 53}Cr data obtained for chondrules extracted from a primitive ordinary chondrite, Chainpur (LL3.4), define an initial {sup 53}Mn/{sup 55}Mn ratio of (5.1 {+-} 1.6) x 10{sup -6}. As a result of this downward revision from an earlier higher value of (9.4 {+-} 1.7) x 10{sup -6} for the same meteorite (Nyquist et al. 2001), together with an assessment of recent literature, we show that a consistent chronology with other chronometers such as the {sup 26}Al-{sup 26}Mg and {sup 207}Pb-{sup 206}Pb systems emerges in the early Solar System.

Yin, Q; Jacobsen, B; Moynier, F; Hutcheon, I D

2007-05-02T23:59:59.000Z

127

Ni(II) Sorption on Biogenic Mn-Oxides with Varying Mn  

E-Print Network [OSTI]

Ni(II) Sorption on Biogenic Mn-Oxides with Varying Mn Octahedral Layer Structure M E N G Q I A N G(II) sorption mechanisms were determined at pH 7 and at different Ni(II) loadings, using isotherm and extended X in the interlayer of the BioMnOx and the maximum Ni(II) sorption capacity increases as the formation pH of Bio

Sparks, Donald L.

128

AL. I  

Office of Legacy Management (LM)

AL. I AL. I Department of Energy Washington, DC 20545 OCT 13 Vii87 Mr. John T. Shields A214 National Fertilizer Development Center Tennessee Valley Authority Muscle Shoals, Alabama 35660 Dear Mr. Shields: As you may know, the Department of Energy (DOE) is evaluating the radiological condition of sites that were utilized under the Manhattan Engineer District and the Atomic Energy Commission (AEC) during the early years of nuclear development to determine whether they need remedial action and whether the Department has authority to perform such action. AEC work at the TVA during the period 1951 through 1955 involved the development of a process to recover uranium from the production of phosphate fertilizer. A laboratory and pilot plant were operated at the site, but very little

129

Mn/DOT County Road Safety Plans  

E-Print Network [OSTI]

Roads Program !! Minnesota Central Safety Funds !! Foster safety culture among county stakeholders 41 Mn/DOT County Road Safety Plans CTS Annual Research Conference April 27 & 28, 2010 Howard Preston & Objectives !! Project Overview !! Schedule, Participating Counties, Approach !! Safety Emphasis Areas

Minnesota, University of

130

L. Briand and C. Williams (Eds.): MoDELS 2005, LNCS 3713, pp. 295-308, 2005. Springer-Verlag Berlin Heidelberg 2005  

E-Print Network [OSTI]

295 L. Briand and C. Williams (Eds.): MoDELS 2005, LNCS 3713, pp. 295-308, 2005. Springer-Verlag Berlin Heidelberg 2005 Replicators: Transformations to Address Model Scalability Jeff Gray1 , Yuehua Lin1 affect the ability to explore design alternatives [9]. A #12;296 Jeff Gray et al. form of alternative

Gray, Jeffrey G.

131

DOE - Office of Legacy Management -- Rogers Iron Works Co - MO 10  

Office of Legacy Management (LM)

Rogers Iron Works Co - MO 10 Rogers Iron Works Co - MO 10 FUSRAP Considered Sites Site: ROGERS IRON WORKS CO. (MO.10 ) Elimination from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Rogers Iron Co. MO.10-1 Location: Joplin , Missouri MO.10-1 Evaluation Year: 1990 MO.10-2 MO.10-3 Site Operations: Tested C-liner crushing methods. MO.10-1 Site Disposition: Eliminated - Potential for contamination considered remote based on limited quantities of material handled MO.10-3 MO.10-4 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium (Trace Amounts) MO.10-2 Radiological Survey(s): None Indicated Site Status: Elimination from consideration under FUSRAP Also see Documents Related to ROGERS IRON WORKS CO. MO.10-1 - National Lead Company of Ohio Analytical Data Sheet 9908;

132

Definitive evidence of interlayer coupling between Ga{sub 1-x}Mn{sub x}As layers separated by a nonmagnetic spacer  

SciTech Connect (OSTI)

We have used polarized neutron reflectometry to study the structural and magnetic properties of the individual layers in a series of AlGaAs:Be/Ga{sub 1-x}Mn{sub x}As/GaAs/Ga{sub 1-x}Mn{sub x}As multilayer samples. Structurally, we observe that the samples are virtually identical except for the GaAs spacer thickness (which varies from 3 to 12 nm), and confirm that the spacers contain little or no Mn. Magnetically, we observe that for the sample with the thickest spacer layer, the Ga{sub 1-x}Mn{sub x}As layer adjacent to the Be-doped AlGaAs cap has a temperature dependent magnetization very different from that of the other Ga{sub 1-x}Mn{sub x}As layer. However, as the spacer layer thickness is reduced, the temperature dependent magnetizations of the two Ga{sub 1-x}Mn{sub x}As layers become progressively more similar--a trend we find to be independent of the crystallographic direction along which spins are magnetized. These results definitively show that Ga{sub 1-x}Mn{sub x}As layers can couple across a nonmagnetic spacer and that such coupling depends on spacer thickness.

Kirby, B. J.; Borchers, J. A.; Liu, X.; Ge, Z.; Cho, Y. J.; Dobrowolska, M.; Furdyna, J. K. [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States); Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2007-11-15T23:59:59.000Z

133

Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Program |  

Broader source: Energy.gov (indexed) [DOE]

Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Program Co-Mo Electric Cooperative - Residential Energy Efficiency Rebate Program < Back Eligibility Commercial Residential Savings Category Heating & Cooling Commercial Heating & Cooling Heat Pumps Appliances & Electronics Water Heating Cooling Maximum Rebate Geothermal Heat Pumps: 10 ton maximum for Residential, 50 ton maximum for Commercial Program Info State Missouri Program Type Utility Rebate Program Rebate Amount Room AC: $50 Water Heater: $50 Air Source Heat Pumps: $150 per ton Dual Fuel Air Source Heat Pumps: $300 per ton Geothermal Heat Pumps (Closed Loop): up to $850 per ton Geothermal Heat Pumps (Open Loop or Replacement): $150 per ton Provider Co-Mo Electric Cooperative Co-Mo Electric Cooperative provides rebates to residential and commercial

134

Microsoft Word - Poster Abstract_2010_MO-SCI.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

* * Presenter High-Temperature Viscous Sealing Glasses for Solid Oxide Fuel Cells Cheol-Woon Kim * , Cindy L. Schwartz, Joe Szabo, Kevin S. Barr, and Ted E. Day MO-SCI Corporation, Rolla, MO 65401 * ckim@mo-sci.com; (573) 364-2338 Richard K. Brow ** and Zhongzhi Tang Department of Materials Science and Engineering and the Graduate Center for Materials Research, Missouri University of Science and Technology, Rolla, MO 65409-1170 ** brow@mst.edu; (573) 341-6812 MO-SCI Corporation and the Missouri University of Science and Technology successfully identified and tested several glass compositions that could be used as viscous seals for Solid Oxide Fuel Cells (SOFCs) through a SBIR Phase I project (DE-SC0002491). The glasses possess desirable viscosity characteristics- that is, they have softening points in the temperature range

135

Mo Year Report Period: EIA ID NUMBER:  

U.S. Energy Information Administration (EIA) Indexed Site

Version No: 2013.01 Mo Year Report Period: EIA ID NUMBER: http://www.eia.gov/survey/form/eia_14/instructions.pdf Mailing Address: Secure File Transfer option available at: (e.g., PO Box, RR) https://signon.eia.doe.gov/upload/noticeoog.jsp Electronic Transmission: The PC Electronic Zip Code - Data Reporting Option (PEDRO) is available. If interested in software, call (202) 586-9659. Email form to: OOG.SURVEYS@eia.doe.gov - - - - Fax form to: (202) 586-9772 Mail form to: Oil & Gas Survey Email address: U.S. Department of Energy Ben Franklin Station PO Box 279 Washington, DC 20044-0279 Questions? Call toll free: 1-800-638-8812 PADD 4 Type of Report (Check One ): (Thousands of dollars) (Thousands of barrels) PADD 2 PADD 3 PAD DISTRICT (a) Revision to Report:

136

Deformation and Fracture Properties in Neutron Irradiated Pure Mo and Mo Alloys  

SciTech Connect (OSTI)

The effect of neutron irradiation on the mechanical properties of select molybdenum materials, pure low carbon arc-cast (LCAC) Mo, Mo-0.5% Ti-0.1% Zr (TZM) alloy, and oxide dispersion-strengthened (ODS) Mo alloy, was characterized by analyzing the temperature dependence of mechanical properties. This study assembles the tensile test and analysis data obtained through multiple series of irradiation and post-irradiation experiments. Tensile specimens in stress-relieved conditions with longitudinal (LSR) and transverse (TSR) directions were irradiated in high flux isotope reactor (HFIR) at temperatures ranging 270 to 1100oC to 0.6 -13.1 dpa. Also, the recrystallized LCAC Mo specimens in the longitudinal direction (LR) were also irradiated up to 0.28 dpa at ~80oC. Tensile tests were performed at temperatures ranging from -194 oC to 1400oC. Analysis results indicate that the irradiation at temperatures below 700oC increased strength significantly, up to 170%, while the increase of yield stress by irradiations at higher temperature was not significant. The plastic instability stress was strongly dependent on test temperature but was nearly independent of irradiation dose and temperature. The true fracture stress was dependent on test temperature to a lesser degree than was the yield stress and plastic instability stress. It was also slightly impacted by irradiation, depending on both irradiation and test temperatures. Brittle fracture often occurred in the LSR specimens tested at room temperature or lower after low temperature irradiation, while it was observed in many irradiated TSR specimens over the whole test temperature range. The ODS-LSR specimens showed the highest resistance to irradiation embrittlement due to relatively higher fracture stress. The critical temperature for shear failure (CTSF) was defined and evaluated for the materials, and the CTSF values were compared with the ductile to brittle transition temperatures (DBTT) based on ductility data.

Byun, Thak Sang [ORNL; Li, Meimei [ORNL; Cockeram, Brian V [Bechtel-Bettis, Inc.; Snead, Lance Lewis [ORNL

2008-01-01T23:59:59.000Z

137

Microsoft Word - AL2008-06.doc  

Broader source: Energy.gov (indexed) [DOE]

8-01 8-01 Acquisition Regulation Date 11/07/07 ACQUISITION LETTER This Acquisition Letter is issued under the authority of the DOE and NNSA Procurement Executives. Subject: Corporate Governance Requirements for DOE Management and Operating (M&O) and Major Site Management Contracts References: FAR Subpart 17.6 Management and Operating Contracts DEAR 909.104-3 Application of Standards DEAR Subpart 917.6 Management and Operating Contracts DEAR 970.0970 Performance guarantees DEAR 970.5203-1 Management controls DEAR 970.5209-1 Requirement for guarantee of performance DOE Acquisition Guide Chapter 9.2, Performance Guarantees When is this Acquisition Letter (AL) effective? This AL is effective upon issuance. When does this AL Expire?

138

MN Office of Energy Security | Open Energy Information  

Open Energy Info (EERE)

MN Office of Energy Security MN Office of Energy Security Jump to: navigation, search Name MN Office of Energy Security Place St. Paul, MN Website http://www.mnofficeofenergysec References MN Office of Energy Security[1] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Test & Evaluation Partner Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! MN Office of Energy Security is a company located in St. Paul, MN. References ↑ "MN Office of Energy Security" Retrieved from "http://en.openei.org/w/index.php?title=MN_Office_of_Energy_Security&oldid=379158" Categories: Clean Energy Organizations Companies Organizations

139

Results of PIE of experimental (U-Mo)-based LEU disperse fuel compositions  

SciTech Connect (OSTI)

Performed in frames of Russian RERTR Program were post-irradiation examinations of 12 types of disperse (U-Mo)-based fuel compositions in Al matrix. The goal of the work was to substantiate serviceability of the new fuel compositions being developed for utilization in Russian-built pool-type research reactors. Among the methods of PIE used in this work were visual examination, gamma-scanning, optical metallography, SEM, X-ray analysis and some others. The present paper is dedicated to an analysis of the main results of PIE completed so far. Special attention has been paid to the parameters affecting formation of interaction layer between fuel granules and matrix Al. (author)

Vatulin, A.; Dobrikova, I.; Suprun, V.; Petrov, Y.; Trifonov, Y. [VNIINM, Moscow (Russian Federation); Alexandrov, V.; Ijutov, A.; Novoselov, A.; Starkov, V.; Shishin, V.; Yakovlev, V. [RIAR, Dimitrovgrad (Russian Federation)

2008-07-15T23:59:59.000Z

140

DOE - Office of Legacy Management -- Spencer Chemical Co - MO 0-01  

Office of Legacy Management (LM)

MO 0-01 MO 0-01 FUSRAP Considered Sites Site: SPENCER CHEMICAL CO. (MO.0-01) Eliminated from further consideration under FUSRAP - an AEC licensed operation Designated Name: Not Designated Alternate Name: Jayhawk Works MO.0-01-1 Location: Joplin , Missouri MO.0-01-1 Evaluation Year: 1985 MO.0-01-2 Site Operations: Processed enriched uranium (UF-6) and scrap to produce primarily uranium dioxide (UO-2) under AEC licenses. MO.0-01-3 MO.0-01-4 Site Disposition: Eliminated - No Authority MO.0-01-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Normal and Enriched Uranium, Thorium MO.0-01-6 Radiological Survey(s): Yes MO.0-01-5 Site Status: Eliminated from further consideration under FUSRAP - an AEC licensed operation Also see Documents Related to SPENCER CHEMICAL CO.

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
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141

DOE - Office of Legacy Management -- Tyson Valley Powder Farm - MO 11  

Office of Legacy Management (LM)

Tyson Valley Powder Farm - MO 11 Tyson Valley Powder Farm - MO 11 FUSRAP Considered Sites Site: TYSON VALLEY POWDER FARM (MO.11) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: St. Louis County , Missouri MO.11-1 Evaluation Year: 1987 MO.11-2 Site Operations: Storage of C-Special material (residue from production of uranium metal). MO.11-1 MO.11-2 MO.11-3 Site Disposition: Eliminated - Referred to Army Corps of Engineers MO.11-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium MO.11-3 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP Also see Documents Related to TYSON VALLEY POWDER FARM MO.11-1 - Letter; Dickenson to Duff; Subject: Granted continued use

142

Mn–Fe Oxides with Support of MgAl2O4, CeO2, ZrO2 and Y2O3–ZrO2 for Chemical-Looping Combustion and Chemical-Looping with Oxygen Uncoupling  

Science Journals Connector (OSTI)

† Department of Environmental Inorganic Chemistry, Chalmers University of Technology, S-412 96 Göteborg, Sweden ... Shen, L.; Wu, J.; Gao, Z.; Xiao, J.Reactivity deterioration of NiO/Al2O3 oxygen carrier for chemical looping combustion of coal in a 10 kWth reactor Combust. ...

Golnar Azimi; Henrik Leion; Tobias Mattisson; Magnus Rydén; Frans Snijkers; Anders Lyngfelt

2014-06-03T23:59:59.000Z

143

Doping mechanisms in graphene-MoS{sub 2} hybrids  

SciTech Connect (OSTI)

We present a joint theoretical and experimental investigation of charge doping and electronic potential landscapes in hybrid structures composed of graphene and semiconducting single layer molybdenum disulfide (MoS{sub 2}). From first-principles simulations, we find electron doping of graphene due to the presence of rhenium impurities in MoS{sub 2}. Furthermore, we show that MoS{sub 2} edges give rise to charge reordering and a potential shift in graphene, which can be controlled through external gate voltages. The interplay of edge and impurity effects allows the use of the graphene-MoS{sub 2} hybrid as a photodetector. Spatially resolved photocurrent signals can be used to resolve potential gradients and local doping levels in the sample.

Sachs, B., E-mail: bsachs@physnet.uni-hamburg.de; Lichtenstein, A. I. [I. Institut für Theoretische Physik, Universität Hamburg, Jungiusstraße 9, D-20355 Hamburg (Germany)] [I. Institut für Theoretische Physik, Universität Hamburg, Jungiusstraße 9, D-20355 Hamburg (Germany); Britnell, L.; Eckmann, A.; Novoselov, K. S. [School of Physics and Astronomy, University of Manchester, M13 9PL Manchester (United Kingdom)] [School of Physics and Astronomy, University of Manchester, M13 9PL Manchester (United Kingdom); Wehling, T. O. [Institut für Theoretische Physik, Universität Bremen, Otto-Hahn-Allee 1, D-28359 Bremen (Germany) [Institut für Theoretische Physik, Universität Bremen, Otto-Hahn-Allee 1, D-28359 Bremen (Germany); Bremen Center for Computational Materials Science, Universität Bremen, Am Fallturm 1a, D-28359 Bremen (Germany); Jalil, R.; Belle, B. D. [Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, Manchester M13 9PL (United Kingdom)] [Manchester Centre for Mesoscience and Nanotechnology, University of Manchester, Manchester M13 9PL (United Kingdom); Katsnelson, M. I. [Institute for Molecules and Materials, Radboud University of Nijmegen, Heijendaalseweg 135, 6525 AJ Nijmegen (Netherlands)] [Institute for Molecules and Materials, Radboud University of Nijmegen, Heijendaalseweg 135, 6525 AJ Nijmegen (Netherlands)

2013-12-16T23:59:59.000Z

144

9 Cr-- 1 Mo steel material for high temperature application  

DOE Patents [OSTI]

One or more embodiments relates to a high-temperature, titanium alloyed, 9 Cr-1 Mo steel exhibiting improved creep strength and oxidation resistance at service temperatures up to 650.degree. C. The 9 Cr-1 Mo steel has a tempered martensite microstructure and is comprised of both large (0.5-3 .mu.m) primary titanium carbides and small (5-50 nm) secondary titanium carbides in a ratio of. from about 1:1.5 to about 1.5:1. The 9 Cr-1 Mo steel may be fabricated using exemplary austenizing, rapid cooling, and tempering steps without subsequent hot working requirements. The 9 Cr-1 Mo steel exhibits improvements in total mass gain, yield strength, and time-to-rupture over ASTM P91 and ASTM P92 at the temperature and time conditions examined.

Jablonski, Paul D; Alman, David; Dogan, Omer; Holcomb, Gordon; Cowen, Christopher

2012-11-27T23:59:59.000Z

145

EUV damage threshold measurements of Mo/Si multilayer mirrors  

Science Journals Connector (OSTI)

An EUV Schwarzschild objective consisting of two spherical, annular mirror substrates coated with Mo/Si multilayers (reflectivity...R?0.65@13.5 nm) provides high EUV fluences [13]. The incidence angles on the sam...

Matthias Müller; Frank Barkusky; Torsten Feigl; Klaus Mann

2012-08-01T23:59:59.000Z

146

Q value of the 100Mo Double-Beta Decay  

E-Print Network [OSTI]

Penning trap measurements using mixed beams of 100Mo - 100Ru and 76Ge - 76Se have been utilized to determine the double-beta decay Q-values of 100Mo and 76Ge with uncertainties less than 200 eV. The value for 76Ge, 2039.04(16) keV is in agreement with the published SMILETRAP value. The new value for 100Mo, 3034.40(17) keV is 30 times more precise than the previous literature value, sufficient for the ongoing neutrinoless double-beta decay searches in 100Mo. Moreover, the precise Q-value is used to calculate the phase-space integrals and the experimental nuclear matrix element of double-beta decay.

S. Rahaman; V. -V. Elomaa; T. Eronen; J. Hakala; A. Jokinen; J. Julin; A. Kankainen; A. Saastamoinen; J. Suhonen; C. Weber; J. Äystö

2007-12-20T23:59:59.000Z

147

Category:International Falls, MN | Open Energy Information  

Open Energy Info (EERE)

MN MN Jump to: navigation, search Go Back to PV Economics By Location Media in category "International Falls, MN" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVFullServiceRestauran... 88 KB SVHospital International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVHospital Internation... 84 KB SVLargeHotel International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeHotel Internati... 85 KB SVLargeOffice International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVLargeOffice Internat... 83 KB SVMediumOffice International Falls MN Northern States Power Co (Minnesota) Excel Energy.png

148

Energy absorption in Ni-Mn-Ga/ polymer composites  

E-Print Network [OSTI]

In recent years Ni-Mn-Ga has attracted considerable attention as a new kind of actuator material. Off-stoichiometric single crystals of Ni2MnGa can regularly exhibit 6% strain in tetragonal martensites and orthorhombic ...

Feuchtwanger, Jorge

2006-01-01T23:59:59.000Z

149

Oxygen-Release-Related Thermal Stability and Decomposition Pathways of LixNi0.5Mn1.5O4 Cathode Materials  

Science Journals Connector (OSTI)

(21, 22) Therefore, LixMn2O4 has been regarded as a thermally safer cathode material than layered materials, such as LixCoO2, LixNi0.8Co0.15Al0.05O2, and LixNi1/3Co1/3Mn1/3O2. ... The d- and o-LNMO cathodes were fabricated by slurry-casting 80% active material, 10% of carbon black (Chevron), and 10% of PVDF (Kureha) onto an Al foil current collector. ...

Enyuan Hu; Seong-Min Bak; Jue Liu; Xiqian Yu; Yongning Zhou; Steven N. Ehrlich; Xiao-Qing Yang; Kyung-Wan Nam

2013-12-10T23:59:59.000Z

150

1 Mo 1 Do 1 Sa 1 Di 1 Fr 1 Fr 1 Mo 1 Mi 1 Sa 1 Mo 1 Do 1 So 2 Di 2 Fr 2 So 2 Mi 2 Sa 2 Sa 2 Di 2 Do 2 So 2 Di 2 Fr 2 Mo  

E-Print Network [OSTI]

1 Mo 1 Do 1 Sa 1 Di 1 Fr 1 Fr 1 Mo 1 Mi 1 Sa 1 Mo 1 Do 1 So 2 Di 2 Fr 2 So 2 Mi 2 Sa 2 Sa 2 Di 2 Do 2 So 2 Di 2 Fr 2 Mo 3 Mi 3 Sa 3 Mo 3 Do 3 So 3 So 3 Mi 3 Fr 3 Mo 3 Mi 3 Sa 3 Di 4 Do 4 So 4 Di 4 Fr 4 Mo 4 Mo 4 Do 4 Sa 4 Di 4 Do P StAU4 So 4 Mi 5 Fr 5 Mo 5 Mi 5 Sa 5 Di 5 Di 5 Fr 5 So 5 Mi 5 Fr 5 Mo

Mayberry, Marty

151

Red de compensacin al trabajador Recibo de Informacin  

E-Print Network [OSTI]

Red de compensación al trabajador Recibo de Información He recibido la Notificación de los requisitos para utilizar la Red que me explica cómo obtener atención médica a través de la Red de información, entiendo que: 1. Debo elegir un médico tratante de la lista de médicos pertenecientes a la red de

Yang, Zong-Liang

152

MN4602 Crouch 2004 REASSESSING WEAPON SYSTEM  

E-Print Network [OSTI]

MN4602 Crouch 2004 REASSESSING WEAPON SYSTEM OPERATIONAL TEST & EVALUATION METHODOLOGIES LTC Thom support assessing a weapon systems true cost and performance characteristics? S1: Can/should cost methodologies adequately address weapon systems total ownership cost (TOC)? S3: Are there critical cost

153

"MBUF Demo" "Mn Road Fee Test"  

E-Print Network [OSTI]

(40 mpg) Electric Vehicle (non-gas powered) State Tax * Federal Tax ** State Tax * Federal Tax"MBUF Demo" "Mn Road Fee Test" "IntelliDrive Connected Vehicles for Safety, Mobility and User Fee Overview Six Months In-Vehicle Data Collection Participant Recruited Equipment Deployed First Odometer

Minnesota, University of

154

Mn/DOT's Project Peer Review  

E-Print Network [OSTI]

Mn/DOT's Project Management Peer Review Creating a Project Management Culture 2010 CTS Research and perspectives ·Peer Review Process and Results ·Construction Industry Perspective ·Next Steps ·Q & A #12;Why a Peer Review? Why Project Management? ·Improve project delivery performance ­ on time, on budget (an

Minnesota, University of

155

Manufacturing and properties of newly developed 9%CrMoVNiNbN high-pressure low-pressure rotor shaft forging  

SciTech Connect (OSTI)

In order to obtain the improved strength and toughness for high-pressure low-pressure rotor shaft forging, fundamental studies using laboratory heats were performed on the 9CrMoV base materials, and effects of chemistry on toughness and creep rupture strength were investigated. From the investigation, it is showed that the superclean 9CrMoVNiNbN steel with reduced Si and Mn contents and Ni addition provides a superior strength versus toughness balance. Based on these fundamental studies, a trial high-pressure low-pressure rotor shaft forging with diameter of low-pressure section of 1,750 mm and diameter of high-pressure section of 1,200 mm was successfully manufactured from the diameter of 1,800 mm, and the weight of 65 ton ESR ingot. From the evaluation test results of this trial rotor forging, homogeneous distribution of chemistry was confirmed and low impurity contents was observed in the whole forging. The superior strength and toughness were confirmed with good creep rupture strength. The FATT at the center of low-pressure section was {minus}3 C with the tensile strength level of 870 MPa. From the results of fracture toughness test, low cycle fatigue test, and isothermal aging test, superior mechanical properties were demonstrated. Thus, the superclean 9CrMoVNiNbN steel with reduced Si and Mn contents and Ni addition, is particularly suitable for the high-pressure low-pressure rotor material for advanced combined cycle power plants.

Azuma, Tsukasa; Tanaka, Yasuhiko; Ishiguro, Tohru; Yoshida, Hajime; Ikeda, Yasumi [Japan Steel Works, Muroran (Japan)

1997-12-31T23:59:59.000Z

156

E-Print Network 3.0 - al-mo powder processing Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MA structure then the orientation... is to ascertain what effects, other than hydrogen removal, this process has ... Source: Oak Ridge National Laboratory Fossil Energy Program...

157

E-Print Network 3.0 - alloys sistema ti-al-mo Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

89 the machinist mar 2007 agnesium is 36 per cent Summary: alloys. Reducing the automobile weights by certain amount will result in similar percentage... a combination of...

158

52 M.-O. RO DEL ET AL. MHNG 1034.1419, Foulassi and surrounding, Cam-  

E-Print Network [OSTI]

; Congo: LIV 1991.11.208 Goumina, Congo Brazzaville, 27 November 1990; LIV 1991.11.206­207 (tadpoles), Be´na, Congo Brazzaville, 22 November 1990, coll. Largen.; Democratic Republic of Congo (Zaire): ZSM 44, territory of Kalehe, Kivu, Congo Belge, 5.-7. June 1949, coll. Laurent. Acanthixalus sonjae sp. nov

Losos, Jonathan B.

159

Quantum confinement induced magnetism in LaNiO3-LaMnO3 superlattices  

SciTech Connect (OSTI)

The emergence of magnetic reconstructions at the interfaces of oxide heterostructures are often explained via subtle modifications in the electronic densities, exchange couplings, or strain. Here, an additional possible route for induced magnetism is studied in the context of the (LaNiO3)n/(LaMnO3)n superlattices using a hybrid tightbinding model. In the LaNiO3 region, the induced magnetizations decouple from the intensity of charge leakage from Mn to Ni, but originate from the spin-filtered quantum confinement present in these nanostructures. In general, the induced magnetization is the largest for the (111)-stacking and the weakest for the (001)-stacking superlattices; results compatible with the exchange bias effects reported byGibert et al. [Nat.Mater. 11, 195 (2012)].

Dong, Shuai [ORNL; Dagotto, Elbio R [ORNL

2013-01-01T23:59:59.000Z

160

The production of higher alcohols from syngas using potassium promoted Co/Mo/A12O3 and Rh/Co/Mo/A12O3  

Science Journals Connector (OSTI)

The optimized compositions K(4.9)/Co(2.7)/Mo(6.4)/A1203(gamma) and K(1.2)/ Rh(1.1)/Co(0.6)/Mo(5.7)/A1203(gamma) are both productive catalysts for higher alcohols. The incorporation of rhodium into the K/Co/Mo/A12

D. A. Storm

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Compound and Elemental Analysis At Valles Caldera - Redondo Geothermal...  

Open Energy Info (EERE)

(ICP) for Al, As, Ba, Ca, Fe, K, Li, Mg, Mn, Mo, Na, Si, Sr, and Zn; Fire AssayAtomic Absorption (AA) spectroscopy using a graphite furnace for Ag, Al3+, Cd, Co, Cr, Cu,...

162

MoWiTT:Mobile Window Thermal Test Facility  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0 0 MoWiTT: Mobile Window Thermal Test Facility The window has come a long way since the days when it was a single pane of glass in a wood frame. Low-emissivity windows were designed to help buildings retain some of the energy that would have leaked out of less efficient windows. Designing efficient window-and-frame systems requires accurate measurement of the flow of energy through windows in realistic conditions, a capability provided by the Mobile Window Thermal Test facility. Consisting of a pair of outdoor, room-sized calorimeters, MoWiTT measures the net energy flow through two window samples in side-by-side tests using ambient weather conditions. MoWiTT characterizes the net energy flow as a function of time and measures the temperatures, solar fluxes, and

163

Co-Mo Electric Coop Inc | Open Energy Information  

Open Energy Info (EERE)

Mo Electric Coop Inc Mo Electric Coop Inc Jump to: navigation, search Name Co-Mo Electric Coop Inc Place Missouri Utility Id 4063 Utility Location Yes Ownership C NERC Location SERC NERC MRO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Commercial Multi-Phase Commercial Commercial Single-Phase Over 200 Amps Commercial Commercial Single-Phase Up To 200 Amps Commercial Industrial Industrial Outdoor Lighting HPS 100 W Lighting Outdoor Lighting HPS 150 W Lighting Outdoor Lighting HPS 400 W Lighting Residential Multi-Phase Residential Residential Single-Phase Over 200 Amps Residential

164

DOE - Office of Legacy Management -- Medart Co - MO 09  

Office of Legacy Management (LM)

Medart Co - MO 09 Medart Co - MO 09 FUSRAP Considered Sites Site: MEDART CO. (MO.09 ) Eliminated from consideration under FUSRAP - Facility believed to be torn down and the original site built over Designated Name: Not Designated Alternate Name: None Location: 180 Potomoc Street , St. Louis , Missouri MA.09-4 Evaluation Year: Circa 1990 MA.09-3 Site Operations: Conducted test machining operations on uranium bar stock during the early 1950s. MA.09-2 Site Disposition: Eliminated - Potential for contamination considered remote due limited duration of operations and to site reconstruction MA.09-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium Metal (test quantities) MA.09-3 Radiological Survey(s): Health and safety monitoring during operations MA.09-3

165

ALS Chemistry Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These spaces are dedicated for...

166

ALS Chemistry Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Safety Safety for Users ALS Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These...

167

Mild oxidation of tetrahydrothiophene to sulfolane over V-, Mo- and W-containing layered double hydroxides  

Science Journals Connector (OSTI)

A series of layered double hydroxides (LDH) with Mg2+ and Al3+ cations in the brucite-like layer and W-, V- and Mo-oxospecies in the interlayer gallery were prepared, characterized and tested as catalysts for the sulfolane synthesis by mild sulfoxidation of tetrahydrothiophene (THT) with H2O2. The structural and textural properties of solids and the nature of the metal species were investigated by X-ray diffraction (XRD), N2 adsorption, thermogravimetric analysis (TGA), diffuse reflectance ultraviolet spectroscopy (DRUV), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The catalytic activity was evaluated in the liquid-phase THT oxidation with dilute H2O2 in various organic solvents and temperature range of 20–30 °C. The best performances in terms of catalytic activity and stability were obtained with WO42?-containing LDH catalyst.

Alina-Livia Maciuca; Emil Dumitriu; François Fajula; Vasile Hulea

2008-01-01T23:59:59.000Z

168

Ni.sub.3 Al-based intermetallic alloys having improved strength above 850.degree. C.  

DOE Patents [OSTI]

Intermetallic alloys composed essentially of: 15.5% to 17.0% Al, 3.5% to 5.5% Mo, 4% to 8% Cr, 0.04% to 0.2% Zr, 0.04% to 1.5% B, balance Ni, are characterized by melting points above 1200.degree. C. and superior strengths at temperatures above 1000.degree. C.

Liu, Chain T. (Oak Ridge, TN)

2000-01-01T23:59:59.000Z

169

Electric resistance and magnetoresistance of 30-nm-Thick La0.67Ca0.33MnO3 films elastically compressed in the (110) plane  

Science Journals Connector (OSTI)

We have studied the structure, electric resistance, and magnetoresistance of 30-nm-thick (...0.67Ca0.33MnO3 (LCMO) films grown by laser deposition on (001)-oriented LaAlO3 substrates. The unit cell parameters a a...

Yu. A. Boikov; M. P. Volkov

2008-11-01T23:59:59.000Z

170

Temperature dependent electronic structure of Pr{sub 0.67}Sr{sub 0.33}MnO{sub 3} film probed by X-ray absorption near edge structure  

SciTech Connect (OSTI)

The Mn K edge X-ray absorption near edge structures (XANES) of Pr{sub 0.67}Sr{sub 0.33}MnO{sub 3} film (100 nm) on (001) LaAlO{sub 3} substrate was measured at different temperatures to probe the MnO{sub 6} octahedron distortion and corresponding electronic structure. The absorption of high temperature paramagnetic-insulator phase differed from that of the low temperature ferromagnetic-metal phase. The temperature-dependent absorption intensity of Mn K edge XANES was correlated with the relaxation of distorted MnO{sub 6} octahedron, which changed the crystal field acting on the Mn site and the related electronic structure and properties. At low temperature, the splitting of Mn majority e{sub g} orbitals decreased and the density of states above the Fermi level increased in the relaxed MnO{sub 6} octahedron, as reflected by a wider separation between two sub-peaks in the pre-edge XANES spectra.

Zhang, Bangmin [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Department of Materials Science and Engineering, National University of Singapore, Singapore 117576 (Singapore); NUSNNI-Nanocore, National University of Singapore, Singapore 117411 (Singapore); Sun, Cheng-Jun, E-mail: cjsun@aps.anl.gov, E-mail: msecgm@nus.edu.sg; Heald, Steve M. [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Chen, Jing-Sheng; Moog Chow, Gan, E-mail: cjsun@aps.anl.gov, E-mail: msecgm@nus.edu.sg [Department of Materials Science and Engineering, National University of Singapore, Singapore 117576 (Singapore); Venkatesan, T. [NUSNNI-Nanocore, National University of Singapore, Singapore 117411 (Singapore); Department of Physics, National University of Singapore, Singapore 117542 (Singapore); Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576 (Singapore)

2014-05-07T23:59:59.000Z

171

Optical properties of metallic (III, Mn)V ferromagnetic semiconductors in the infrared to visible range  

E-Print Network [OSTI]

, Texas 77843-4242, USA 2Institute of Physics, ASCR, Cukrovarnick? 10, 162 53 Praha 6, Czech Republic 3Department of Physics, University of Texas, Austin, Texas 78712-0264, USA 4Institute of Physics, Polish Academy of Sciences, al. Lotnik?w 32/46, PL-02... of ferromagnetic semiconductors based on (III, Mn)V materials.1?4 These materials have been the focus of intensive research over the recent years after nonequilibrium growth procedures5,6 have demonstrated the ability to achieve a ferromagnetic phase...

Hankiewicz, EM; Jungwirth, T.; Dietl, T.; Timm, C.; Sinova, Jairo.

2004-01-01T23:59:59.000Z

172

Domestic production of medical isotope Mo-99 moves a step closer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Domestic production of medical isotope Mo-99 Domestic production of medical isotope Mo-99 moves a step closer Irradiated uranium fuel has been recycled and reused for molybdenum-99...

173

In situ electron microscopy study of growth of WO3 and MoO3 nanowhiskers  

Science Journals Connector (OSTI)

WO3 and MoO3 nanowhiskers were grown from nanosize WO3 and MoO3 powders intensely irradiated with electrons in an electron microscope. Solid and hollow nanowhiskers of these materials were observed. A growth mech...

1 R. T. Malkhasyan; R. K. Karakhanyan; M. N. Nazaryan…

2003-05-01T23:59:59.000Z

174

Nanoscale Phase Separation In Epitaxial Cr-Mo and Cr-V Alloy...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Separation In Epitaxial Cr-Mo and Cr-V Alloy Thin Films Studied Using Atom Probe Tomography: Comparison Of Nanoscale Phase Separation In Epitaxial Cr-Mo and Cr-V Alloy Thin Films...

175

¿Cómo funcionan los Híbridos?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

¿Cómo funcionan los Híbridos? ¿Cómo funcionan los Híbridos? Diagrama de los componentes de un híbrido completo, incluyen (1) un motor de combustión interna (2) un motor eléctrico, (3) un generador, (4) una aparato de cambio de motor, and (5) una batería de gran capacidad. en inglés Flash Animation: ¿Cómo funcionan los Híbridos? (Requiere versión Flash 6.0 o superior) HTML Version: ¿Cómo funcionan los Híbridos? Los vehículos Híbridos-eléctricos (VHEs) combinan las ventajas de los motores de gasolina con los motores eléctricos y se pueden configurar para diferentes objetivos, como mejorar el ahorro de combustible, aumentar su fuerza, o proveer fuerza adicional para el uso del sistema eléctrico o los componentes electrónicos. Algunas de las tecnologías avanzadas que usan los híbridos típicamente

176

Hole Selective MoOx Contact for Silicon Solar Cells  

Science Journals Connector (OSTI)

Hole Selective MoOx Contact for Silicon Solar Cells ... This work has important implications toward enabling a novel class of junctionless devices with applications for solar cells, light-emitting diodes, photodetectors, and transistors. ... Junctionless solar cells; silicon photovoltaics; heterojunctions; dopant-free contact; molybdenum trioxide ...

Corsin Battaglia; Xingtian Yin; Maxwell Zheng; Ian D. Sharp; Teresa Chen; Stephen McDonnell; Angelica Azcatl; Carlo Carraro; Biwu Ma; Roya Maboudian; Robert. M. Wallace; Ali Javey

2014-01-07T23:59:59.000Z

177

Exploring Neutron-Rich Oxygen Isotopes with MoNA  

E-Print Network [OSTI]

The Modular Neutron Array (MoNA) was used in conjunction with a large-gap dipole magnet (Sweeper) to measure neutron-unbound states in oxygen isotopes close to the neutron dripline. While no excited states were observed in 24O, a resonance at 45(2) keV above the neutron separation energy was observed in 23O.

N. Frank; T. Baumann; D. Bazin; J. Brown; P. A. DeYoung; J. E. Finck; A. Gade; J. Hinnefeld; R. Howes; J. -L. Lecouey; B. Luther; W. A. Peters; H. Scheit; A. Schiller; M. Thoennessen

2007-08-20T23:59:59.000Z

178

Phase transitions in the adsorption system Li/Mo(112)  

E-Print Network [OSTI]

Experimental studies of the phase transitions in the adsorption system Li/Mo(112) are presented. This system is a model system for highly anisotropic interactions. From measurements of the half-widths of the low-energy electron diffraction spot...

Fedorus, A.; Kolthoff, D.; Koval, V.; Lyuksyutov, Igor F.; Naumovets, AG; Pfnur, H.

2000-01-01T23:59:59.000Z

179

(Robert P. Biuk-Aghai), , , : robertb@umac.mo  

E-Print Network [OSTI]

1 * (Robert P. Biuk-Aghai), , , : robertb@umac.mo (GIS) TM 30 1111 (PC) (PDAs) (ITU) 2002 [1] (PDAs) (GIS) (GIS)- 2 34 5 * . #12;2 2222 2001 2002 (PDA) PalmOS Pocket Google Maps API 3333 GPS 3.13.13.13.1 1. 2. 3. . #12;3 Dijkstra [4] / 1 ("S", "D

Biuk-Aghai, Robert P.

180

Thermal Stability of MnBi Magnetic Materials. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MnBi attracts great attention in recent years for its great potential as permanent magnet materials. It is unique because its coercivity increases with increasing temperature,...

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Perpendicular ferrimagnetism in strained Mn{sub 2}As film  

SciTech Connect (OSTI)

Ferrimagnetic Mn{sub 2}As thin films with perpendicular magnetic anisotropy were successfully grown on Si(100) by molecular-beam epitaxy. From the reflection high-energy electron diffraction and X-ray diffraction patterns, the orientation of the Mn{sub 2}As film on Si was along the c-axis in the tetragonal crystal structure. Mn{sub 2}As film exhibited ferrimagnetic ordering at temperatures greater than 300 K, which differs from antiferromagnetic or paramagnetic behaviors in the bulk form. The magnetic moment of Mn{sub 2}As determined by saturated magnetization was 0.51 {mu}{sub B} per unit cell.

Hwang, Younghun; Choi, Jeongyong; Duc Dung, Dang; Shin, Yooleemi; Cho, Sunglae [Department of Physics, University of Ulsan, Ulsan 680-749 (Korea, Republic of)

2011-03-15T23:59:59.000Z

182

Magneto-optical studies of ensembles of semimagnetic self-organized Cd(Mn)Se/Zn(Mn)Se Quantum Dots  

SciTech Connect (OSTI)

Ensembles of Cd(Mn)Se/ZnSe and CdSe/Zn(Mn)Se semimagnetic self-organized quantum dots with different Mn content have been studied by photoluminescence and resonant Raman scattering under strong magnetic fields in Faraday and Voigt geometries and with spectral and polarization selective excitation. Electron spin-flip Raman scattering has been observed in Voigt geometry in the structures with large Mn content. Narrow exciton peaks completely ?{sup ?}?{sup +} polarized have been observed under selective excitation in Faraday geometry in the structures with medium and small Mn content. A number of specific effects manifested themselves in the structures with a smallest Mn content where no Zeeman shift of the photoluminescence bands was observed.

Reshina, I. I.; Ivanov, S. V.; Toropov, A. A. [Ioffe Physical Technical Institute of RAS, Polytechnicheskaya 26, 194021 St. Petersburg (Russian Federation)

2013-12-04T23:59:59.000Z

183

Nanotribology and Nanofabrication of MoO3 Structures by Atomic Force Microscopy  

Science Journals Connector (OSTI)

...MoS2) surfaces. Highly anisotropic friction was observed whereby...and Ni) typical of black shale environments. One of...MoS2) surfaces. Highly anisotropic friction was observed...measUred friction is extremely anisotropic, with MoO, crystals sliding...

Paul E. Sheehan; Charles M. Lieber

1996-05-24T23:59:59.000Z

184

Influence of Mo on the Fe:Mo:C nanocatalyst thermodynamics for single-walled carbon nanotube growth  

E-Print Network [OSTI]

ternary phases, such as the Fe,Mo 23C6 type carbides.37 The way in which carbon interacts with transition of metal carbide formation. Although relating C solubility and catalytic ability of metal catalysts,23 , metals which form carbides ca

Curtarolo, Stefano

185

Phonon and elastic instabilities in MoC and MoN Gus L. W. Hart* and Barry M. Klein  

E-Print Network [OSTI]

illustrating the rich behavior of carbo-nitride materials. The early transition metal carbides and nitrides high transition temperatures. We show that the elastic instability in B1-structure MoN, demonstrated the calculations re- ported here were performed with the linear-augmented- plane-wave method.2­4 The B1 carbides

Hart, Gus

186

High-Resolution Structure of the Photosynthetic Mn4Ca Catalyst from X-ray Spectroscopy  

E-Print Network [OSTI]

the Photosynthetic Mn 4 Ca Catalyst from X-ray Spectroscopystructure of the Mn 4 Ca catalyst at high-resolution whichthe structure of Mn 4 Ca catalyst as it cycles through the

Yano, Junko

2008-01-01T23:59:59.000Z

187

Exploration of R2XM2 (R=Sc, Y, Ti, Zr, Hf, rare earth; X=main group element; M=transition metal, Si, Ge): Structural Motifs, the novel Compound Gd2AlGe2 and Analysis of the U3Si2 and Zr3Al2 Structure Types  

SciTech Connect (OSTI)

In the process of exploring and understanding the influence of crystal structure on the system of compounds with the composition Gd{sub 5}(Si{sub x}Ge{sub 1-x}){sub 4} several new compounds were synthesized with different crystal structures, but similar structural features. In Gd{sub 5}(Si{sub x}Ge{sub 1-x}){sub 4}, the main feature of interest is the magnetocaloric effect (MCE), which allows the material to be useful in magnetic refrigeration applications. The MCE is based on the magnetic interactions of the Gd atoms in the crystal structure, which varies with x (the amount of Si in the compound). The crystal structure of Gd{sub 5}(Si{sub x}Ge{sub 1-x}){sub 4} can be thought of as being formed from two 3{sup 2}434 nets of Gd atoms, with additional Gd atoms in the cubic voids and Si/Ge atoms in the trigonal prismatic voids. Attempts were made to substitute nonmagnetic atoms for magnetic Gd using In, Mg and Al. Gd{sub 2}MgGe{sub 2} and Gd{sub 2}InGe{sub 2} both possess the same 3{sup 2}434 nets of Gd atoms as Gd{sub 5}(Si{sub x}Ge{sub 1-x}){sub 4}, but these nets are connected differently, forming the Mo{sub 2}FeB{sub 2} crystal structure. A search of the literature revealed that compounds with the composition R{sub 2}XM{sub 2} (R=Sc, Y, Ti, Zr, Hf, rare earth; X=main group element; M=transition metal, Si, Ge) crystallize in one of four crystal structures: the Mo{sub 2}FeB{sub 2}, Zr{sub 3}Al{sub 2}, Mn{sub 2}AlB{sub 2} and W{sub 2}CoB{sub 2} crystal structures. These crystal structures are described, and the relationships between them are highlighted. Gd{sub 2}AlGe{sub 2} forms an entirely new crystal structure, and the details of its synthesis and characterization are given. Electronic structure calculations are performed to understand the nature of bonding in this compound and how electrons can be accounted for. A series of electronic structure calculations were performed on models with the U{sub 3}Si{sub 2} and Zr{sub 3}Al{sub 2} structures, using Zr and A1 as the building blocks. The starting point for these models was the U{sub 3}Si{sub 2} structure, and models were created to simulate the transition from the idealized U{sub 3}Si{sub 2} structure to the distorted Zr{sub 3}Al{sub 2} structure. Analysis of the band structures of the models has shown that the transition from the U{sub 3}Si{sub 2} structure to the Zr{sub 3}Al{sub 2} structure lifts degeneracies along the {Lambda} {yields} Z direction, indicating a Peierls-type mechanism for the displacement occurring in the positions of the Zr atoms.

Sean William McWhorter

2006-05-01T23:59:59.000Z

188

Scintillating bolometers based on ZnMoO$_4$ and Zn$^{100}$MoO$_4$ crystals to search for 0$\  

E-Print Network [OSTI]

The technology of scintillating bolometers based on zinc molybdate (ZnMoO$_4$) crystals is under development within the LUMINEU project to search for 0$\

Poda, D V; Arnaud, Q; Augier, C; Benoît, A; Bergé, L; Boiko, R S; Bergmann, T; Blümer, J; Broniatowski, A; Brudanin, V; Camus, P; Cazes, A; Censier, B; Chapellier, M; Charlieux, F; Chernyak, D M; Coron, N; Coulter, P; Cox, G A; Danevich, F A; de Boissière, T; Decourt, R; De Jesus, M; Devoyon, L; Drillien, A -A; Dumoulin, L; Eitel, K; Enss, C; Filosofov, D; Fleischmann, A; Fourches, N; Gascon, J; Gastaldo, L; Gerbier, G; Giuliani, A; Gros, M; Hehn, L; Henry, S; Hervé, S; Heuermann, G; Humbert, V; Ivanov, I M; Juillard, A; Kéfélian, C; Kleifges, M; Kluck, H; Kobychev, V V; Koskas, F; Kozlov, V; Kraus, H; Kudryavtsev, V A; Sueur, H Le; Loidl, M; Magnier, P; Makarov, E P; Mancuso, M; de Marcillac, P; Marnieros, S; Marrache-Kikuchi, C; Menshikov, A; Nasonov, S G; Navick, X-F; Nones, C; Olivieri, E; Pari, P; Paul, B; Penichot, Y; Pessina, G; Piro, M C; Plantevin, O; Redon, T; Robinson, M; Rodrigues, M; Rozov, S; Sanglard, V; Schmidt, B; Shlegel, V N; Siebenborn, B; Strazzer, O; Tcherniakhovski, D; Tenconi, M; Torres, L; Tretyak, V I; Vagneron, L; Vasiliev, Ya V; Velazquez, M; Viraphong, O; Walker, R J; Weber, M; Yakushev, E; Zhang, X; Zhdankov, V N

2015-01-01T23:59:59.000Z

189

On the Reaction Mechanism of Acetaldehyde Decomposition on Mo(110)  

SciTech Connect (OSTI)

The strong Mo-O bond strength provides promising reactivity of Mo-based catalysts for the deoxygenation of biomass-derived oxygenates. Combining the novel dimer saddle point searching method with periodic spin-polarized density functional theory calculations, we investigated the reaction pathways of a acetaldehyde decomposition on the clean Mo(110) surface. Two reaction pathways were identified, a selective deoxygenation and a nonselective fragmentation pathways. We found that acetaldehyde preferentially adsorbs at the pseudo 3-fold hollow site in the ?2(C,O) configuration on Mo(110). Among four possible bond (?-C-H, ?-C-H, C-O and C-C) cleavages, the initial decomposition of the adsorbed acetaldehyde produces either ethylidene via the C-O bond scission or acetyl via the ?-C-H bond scission while the C-C and the ?-C-H bond cleavages of acetaldehyde leading to the formation of methyl (and formyl) and formylmethyl are unlikely. Further dehydrogenations of ethylidene into either ethylidyne or vinyl are competing and very facile with low activation barriers of 0.24 and 0.31 eV, respectively. Concurrently, the formed acetyl would deoxygenate into ethylidyne via the C-O cleavage rather than breaking the C-C or the C-H bonds. The selective deoxygenation of acetaldehyde forming ethylene is inhibited by relatively weaker hydrogenation capability of the Mo(110) surface. Instead, the nonselective pathway via vinyl and vinylidene dehydrogenations to ethynyl as the final hydrocarbon fragment is kinetically favorable. On the other hand, the strong interaction between ethylene and the Mo(110) surface also leads to ethylene decomposition instead of desorption into the gas phase. This work was financially supported by the National Advanced Biofuels Consortium (NABC). Computing time was granted by a user project (emsl42292) at the Molecular Science Computing Facility in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL). This work was financially supported by the National Advanced Biofuels Consortium (NABC). Computing time was granted by a user project (emsl42292) at the Molecular Science Computing Facility in the William R. Wiley Environmental Molecular Sciences Laboratory (EMSL). The EMSL is a U.S. Department of Energy (DOE) national scientific user facility located at Pacific Northwest National Laboratory (PNNL) and supported by the DOE Office of Biological and Environmental Research. Pacific Northwest National Laboratory is operated by Battelle for the U.S. Department of Energy.

Mei, Donghai; Karim, Ayman M.; Wang, Yong

2012-02-16T23:59:59.000Z

190

Thermal stability of MnBi magnetic materials  

SciTech Connect (OSTI)

MnBi has attracted much attention in recent years due to its potential as a rare-earth-free permanent magnet material. It is unique because its coercivity increases with increasing temperature, which makes it a good hard phase material for exchange coupling nanocomposite magnets. MnBi phase is difficult to obtain, partly because the reaction between Mn and Bi is peritectic, and partly because Mn reacts readily with oxygen. MnO formation is irreversible and harmful to magnet performance. In this paper, we report our efforts toward developing MnBi permanent magnets. To date, high purity MnBi (>90%) can be routinely produced in large quantities. The produced powder exhibits 74:6 emu g1 saturation magnetization at room temperature with 9 T applied field. After proper alignment, the maximum energy product (BH) max of the powder reached 11.9 MGOe, and that of the sintered bulk magnet reached 7.8 MGOe at room temperature. A comprehensive study of thermal stability shows that MnBi powder is stable up to 473 K in air.

Cui, Jinfang [Pacific Northwest National Laboratory; Choi, J. P. [Pacific Northwest National Laboratory; Li, G. [Pacific Northwest National Laboratory; Polikarpov, E. [Pacific Northwest National Laboratory; Darsell, J. [Pacific Northwest National Laboratory; Overman, N. [Pacific Northwest National Laboratory; Olszta, M. [Pacific Northwest National Laboratory; Schreiber, D. [Pacific Northwest National Laboratory; Bowden, M. [Environmental Molecular Sciences Laboratory; Droubay, T. [Pacific Northwest National Laboratory; Kramer, Matthew J. [Ames Laboratory; Zarkevich, Nikolay A. [Ames Laboratory; Wang, L L. [Ames Laboratory; Johnson, Duane D. [Ames Laboratory; Marinescu, M. [Electron Energy Corporation; Takeuchi, I. [University of Maryland; Huang, Q. Z. [National Institute of Standards and Technology; Wu, H. [University of Maryland; Reeve, H. [United Technologies Research Center; Vuong, N. V. [University of Texas; Liu, J P. [University of Texas

2014-01-27T23:59:59.000Z

191

Chemiluminescence in the Reaction of Mn Atoms with CF4  

Science Journals Connector (OSTI)

Translational excitation functions have been determined for production of several MnF* statesb5?, c5?+, d5?, and (most probably) e5?+in the reaction of a laser-ablated beam of Mn atoms with gaseous CF4. Although all observed channels show high initial ...

Dale L. Herbertson; Martin R. Levy

1996-08-29T23:59:59.000Z

192

Processing of Mo-Si-B intermetallics by extrusion and oxidation properties of the extruded Tl-MoSi{sub 2}-MoB System  

SciTech Connect (OSTI)

An extrusion process was developed that is able to consistently produce large quantities of Mo-Si-B rods without the presence of defects. Binder removal from the extruded rods was studied in detail and it was determined that heating rates on the order of 0.02{degree}/minute (1.2{degree}/hour) are necessary to remove the binder without the formation of defects. This low heating rate resulted in debinding times in excess of 70 hours (approximately 3 days). Wicking was investigated as a means to decrease the time necessary for binder removal. Using 0.05{micro}m alumina powder as a wicking agent, binder removal times were reduced to 10 hours with heating rates up to 1{degree}/minute employed without defect formation. Once the extrusion process was complete the oxidation properties of the Tl-MoSi{sub 2}-MoB extruded phase assemblage was investigated. It was determined that this composition exhibits catastrophic oxidation or pesting in the temperature range of 660--760 C, resulting in the material turning to dust. Outside of this temperature range the composition is oxidatively stable. Continuous mass measurements were taken at 1,300, 1,450, and 1,600 C to determine the oxidation rate constants of this material. Parabolic rate constants of 6.9 x 10{sup {minus}3}, 1.3 x 10{sup {minus}3}, and 9.1 x 10{sup {minus}3} mg{sup 2}/cm{sup 4}/hr were determined for 1,300, 1,450, and 1,600 C respectively.

Summers, Eric

1999-11-08T23:59:59.000Z

193

MN471018, Work Planning and Control Manual  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

18, Work Planning and Control Manual 18, Work Planning and Control Manual Sponsor: Michael W. Hazen, 4000 Issue Date: January 3, 2007 Revision Date: June 1, 2009 This document is no longer a CPR. This document implements the requirements of Corporate procedure ESH100.1.WPC.1, Plan and Control Work. IMPORTANT NOTICE: A printed copy of this document may not be the document currently in effect. The official version is the online version located on the Sandia Restricted Network (SRN) MN471018 - WORK PLANNING AND CONTROL MANUAL Subject Matter Expert: Brad Elkin; CA Counterpart: Aden Jackson MN471018 Revision Date: June 1, 2009; Replaces Document: October 28, 2008 Implementation Notice: The requirements outlined in this document must be incorporated into approved comprehensive organizational procedures on or before June 30, 2009. New work planned and conducted after June 30, 2009 shall be performed in accordance with this document. Ongoing work, conducted under an existing, current, and approved PHS and TWD (if required), is authorized until the expiration of the applicable PHS, TWD, or June 30, 2010.

194

ALS Chemistry Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Chemistry Lab Print ALS Chemistry Labs The ALS Chemistry Labs are located in the User Support Building (15-130) and in Building 6 (6-2233)*. These spaces are dedicated for...

195

Magnetic Moment Enhancement for Mn7 Cluster on Graphene  

SciTech Connect (OSTI)

Mn7 cluster on graphene with different structural motifs and magnetic orders are investigated systematically by first-principles calculations. The calculations show that Mn7 on graphene prefers a two-layer motif and exhibits a ferrimagnetic coupling. The magnetic moment of the Mn7 cluster increases from 5.0 ?B at its free-standing state to about 6.0 ?B upon adsorption on graphene. Mn7 cluster also induces about 0.3 ?B of magnetic moment in the graphene layer, leading to an overall enhancement of 1.3 ?B magnetic moment for Mn7 on graphene. Detail electron transfer and bonding analysis have been carried out to investigate the origin of the magnetic enhancement.

Liu, Xiaojie [Ames Laboratory; Wang, Cai-Zhuang [Ames Laboratory; Lin, Hai-Qing [Beijing Computational Science Research Center; Ho, Kai-Ming [Ames Laboratory

2014-08-21T23:59:59.000Z

196

Octupole collectivity in {sup 98,100,102}Mo  

SciTech Connect (OSTI)

Excited states in {sup 98,100,102}Mo have been studied via the {sup 30}Si+{sup 168}Er-induced fission reaction at a beam energy of 142 MeV. Prompt {gamma} rays were detected with the EUROBALL III multidetector array. The level schemes are extended with more than 20 new transitions and interpreted in the framework of a soft-octupole vibration model.

Lalkovski, S.; Ilieva, S.; Minkova, A.; Minkov, N.; Kutsarova, T.; Lopez-Martens, A.; Korichi, A.; Huebel, H.; Goergen, A.; Jansen, A.; Schoenwasser, G.; Herskind, B.; Bergstroem, M.; Podolyak, Zs. [Department of Physics, University of Sofia, 1164 Sofia (Bulgaria); Institute for Nuclear Research and Nuclear Energy, BAS, 1784 Sofia (Bulgaria); Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, F-91405 Orsay Campus (France); Helmholtz-Institut fuer Strahlen-und Kernphysik, Universitaet Bonn, Nussallee 14-16, D-53115 Bonn (Germany); The Niels Bohr Institut, Blegdamsvej 17, DK-2100 Copenhagen (Denmark); INFN, Laboratori Nationali di Legnaro (Italy)

2007-01-15T23:59:59.000Z

197

Oxidation of ethane to ethylene and acetic acid by MoVNbO catalysts M. Roussel1  

E-Print Network [OSTI]

1 Oxidation of ethane to ethylene and acetic acid by MoVNbO catalysts M. Roussel1 , M. Bouchard1 catalytic properties in the oxidation of ethane to ethylene and acetic acid is examined. Solids based on Mo and nanosize of MoO3 and (VNbMo)5O14 crystals. The high global selectivity to ethylene and acetic acid (90

Paris-Sud XI, Université de

198

1 Di Neujahr 1 Fr 1 Fr 1 Mo Ostermontag 2 Mi 2 Sa 2 Sa 2 Di  

E-Print Network [OSTI]

1 Di Neujahr 1 Fr 1 Fr 1 Mo Ostermontag 2 Mi 2 Sa 2 Sa 2 Di 3 Do 3 So 3 So 3 Mi 4 Fr 4 Mo 4 Mo 4 Do 5 Sa 5 Di 5 Di 5 Fr 6 So 6 Mi 6 Mi 6 Sa 7 Mo 7 Do 7 Do 7 So 8 Di 8 Fr 8 Fr 8 Mo 9 Mi 9 Sa 9 Sa 9 Di 10 Do 10 So 10 So 10 Mi 11 Fr 11 Mo 11 Mo 11 Do 12 Sa 12 Di 12 Di 12 Fr 13 So 13 Mi 13 Mi Power

Grübel, Rudolf

199

DOE/SC-ARM-12-023 ARM Climate Research Facility AnnuAl RepoRt - 2012  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2-023 2-023 ARM Climate Research Facility AnnuAl RepoRt - 2012 New Climate Measurement Sites h ?QOPQK?* ? * - " ?q " *"- ?l *?G qlH?b " * ?q ?e " "* ? ? - " ?*"-? "?- *"- ? "* Y? ? "? ql?l- " ?e " "* ? - ? ? * ? - *? *?n " *- K? K? ? ? "? ? "* ?- ?f "- ?h ? " ?* ? - M?? ? "? "* ? ? ?*-? ?- *"- ? ?* ? ?- ?QOPRK? ?* ?"" ? -" ? ql ? " *" ? "* ?- ? *? " * ?- *"- ? " "*" ? - ?* ?"- M??o - - ?" * * *"- ? - ?* ?*"-? "* ?" Y

200

Electrodeposition of CIS films on the Mo back electrodes with different crystallinities  

Science Journals Connector (OSTI)

Electrodeposition of copper indium diselenide (CuInSe2), which is an absorption layer for thin film solar cells, has been studied on a molybdenum (Mo)-coated glass with different crystallinities. Metastable FCC Mo and BCC Mo coatings were prepared by R.F. sputtering with varying R.F. power (100–170 W) and Ar pressure (3–11 mTorr). Experimental results indicated that the Mo coating deposited at lower power and higher pressure had smaller crystallite size. Cross-sectional transmission electron microscopy showed that the Mo coating deficient in crystallinities contained micro voids residing in the boundaries of the columnar grains and had higher oxygen content, as measured by energy dispersive spectroscopy. The crystallinity of Mo coatings strongly influenced the open circuit potential in the electrolyte for CIS electrodeposition. Consequently, the Cu/In ratio of CIS deposits plated at a constant potential (?0.7 vs. SCE) varied with the distinct Mo coatings. Moreover, the CIS deposit on the various Mo-coated glasses displayed a different morphology. The effect of the crystallinity of Mo coatings on hydrogen evolution reaction at pH 1.55 was also explored. Hydrogen evolution during the CIS electrodeposition may be one of the key factors to influence the CIS morphology. How the crystallinity of the Mo coating affects the composition and morphology of the CIS deposits can be useful for device fabrication and deserves for further study.

Hsien-Chung Huang; Chao-Sung Lin; Wei-Che Chang

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

E-Print Network 3.0 - al fe mn Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Department of Physics, Pohang University of Science and Technology Collection: Materials Science ; Physics 3 Journal of Magnetism and Magnetic Materials 209 (2000) 122124...

202

K and Mn co-doped BaCd{sub 2}As{sub 2}: A hexagonal structured bulk diluted magnetic semiconductor with large magnetoresistance  

SciTech Connect (OSTI)

A bulk diluted magnetic semiconductor was found in the K and Mn co-doped BaCd{sub 2}As{sub 2} system. Different from recently reported tetragonal ThCr{sub 2}Si{sub 2}-structured II-II-V based (Ba,K)(Zn,Mn){sub 2}As{sub 2}, the Ba{sub 1?y}K{sub y}Cd{sub 2?x}Mn{sub x}As{sub 2} system has a hexagonal CaAl{sub 2}Si{sub 2}-type structure with the Cd{sub 2}As{sub 2} layer forming a honeycomb-like network. The Mn concentration reaches up to x???0.4. Magnetization measurements show that the samples undergo ferromagnetic transitions with Curie temperature up to 16?K. With low coercive field of less than 10?Oe and large magnetoresistance of about ?70%, the hexagonal structured Ba{sub 1?y}K{sub y}Cd{sub 2?x}Mn{sub x}As{sub 2} can be served as a promising candidate for spin manipulations.

Yang, Xiaojun; Zhang, Pan; Jiang, Hao; Luo, Yongkang; Chen, Qian; Feng, Chunmu; Tao, Qian; Cao, Guanghan; Xu, Zhu-An, E-mail: zhuan@zju.edu.cn [Department of Physics and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027 (China); Li, Yuke; Cao, Chao; Dai, Jianhui [Department of Physics, Hangzhou Normal University, Hangzhou 310036 (China)

2013-12-14T23:59:59.000Z

203

Unusual Structure and Magnetism in MnO Nanoclusters  

E-Print Network [OSTI]

We report an unusual evolution of structure and magnetism in stoichiometric MnO clusters based on an extensive and unbiased search through the potential energy surface within density functional theory. The smaller clusters, containing up to five MnO units, adopt two-dimensional structures; and regardless of the size of the cluster, magnetic coupling is found to be antiferromagnetic in contrast to previous theoretical findings. Predicted structure and magnetism are strikingly different from the magnetic core of Mn-based molecular magnets, whereas they were previously argued to be similar. Both of these features are explained through the inherent electronic structures of the clusters.

Ganguly, Shreemoyee; Sanyal, Biplab; Mookerjee, Abhijit; 10.1103/PhysRevB.83.020411

2011-01-01T23:59:59.000Z

204

Parallel Polarization EPR Characterization of the Mn(III) Center of Oxidized Manganese Superoxide  

E-Print Network [OSTI]

Parallel Polarization EPR Characterization of the Mn(III) Center of Oxidized Manganese Superoxide polarization CW-EPR to investigate the paramagnetic Mn3+ ion of the MnSOD enzyme from Escherichia coli with a positive axial zero-field splitting value, D, are arranged as shown in Figure 1. An EPR signal from the Mn

Miller, Anne-Frances

205

Band-structure analysis from photoreflectance spectroscopy in (Ga,Mn)As  

SciTech Connect (OSTI)

Modulation photoreflectance spectroscopy has been applied to study the band-structure evolution in (Ga,Mn)As epitaxial layers with increasing Mn content. Structural and magnetic properties of the layers were characterized with high-resolution X-ray diffractometry and SQUID magnetometery, respectively. The revealed results of decrease in the band-gap-transition energy in the (Ga,Mn)As layers with increasing Mn content are interpreted in terms of a disordered valence band, extended within the band gap, formed, in highly Mn-doped (Ga,Mn)As, as a result of merging the Mn-related impurity band with the host GaAs valence band.

Yastrubchak, Oksana; Gluba, Lukasz; Zuk, Jerzy [Institute of Physics, Maria Curie-Sklodowska University, 20-031 Lublin (Poland); Wosinski, Tadeusz; Andrearczyk, Tomasz; Domagala, Jaroslaw Z. [Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw (Poland); Sadowski, Janusz [Institute of Physics, Polish Academy of Sciences, 02-668 Warsaw, Poland and MAX-Lab, Lund University, 22100 Lund (Sweden)

2013-12-04T23:59:59.000Z

206

DOE - Office of Legacy Management -- Twin Cities Ammunition - MN 0-01  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Twin Cities Ammunition - MN 0-01 Twin Cities Ammunition - MN 0-01 FUSRAP Considered Sites Site: TWIN CITIES AMMUNITION (MN.0-01) Eliminated from further consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: New Brighton , Minnesota MN.0-01-1 Evaluation Year: 1987 MN.0-01-2 Site Operations: Site was formerly licensed under 10CFR 70 by the NRC. MN.0-01-1 MN.0-01-2 Site Disposition: Eliminated - No Authority - Referred to DOD MN.0-01-1 Radioactive Materials Handled: None Indicated Primary Radioactive Materials Handled: None Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP - Referred to DOD MN.0-01-2 Also see Documents Related to TWIN CITIES AMMUNITION MN.0-01-1 - DOE Letter; Mott to Spence; Listings of Military

207

Design and experimental activities supporting commercial U.S. electron accelerator production of Mo-99  

SciTech Connect (OSTI)

{sup 99m}Tc, the daughter isotope of {sup 99}Mo, is the most commonly used radioisotope for nuclear medicine in the United States. Under the direction of the National Nuclear Security Administration (NNSA), Los Alamos National Laboratory (LANL) and Argonne National Laboratory (ANL) are partnering with North Star Medical Technologies to demonstrate the viability of large-scale {sup 99}Mo production using electron accelerators. In this process, {sup 99}Mo is produced in an enriched {sup 100}Mo target through the {sup 100}Mo({gamma},n){sup 99}Mo reaction. Five experiments have been performed to date at ANL to demonstrate this process. This paper reviews the current status of these activities, specifically the design and performance of the helium gas target cooling system.

Dale, Gregory E.; Woloshun, Keith A.; Kelsey IV, Charles T.; Olivas, Eric R.; Holloway, Michael A.; Hurtle, Ken P.; Romero, Frank P.; Dalmas, Dale A. [Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545 (United States); Chemerisov, Sergey D.; Vandegrift, George F.; Tkac, Peter; Makarashvili, Vakho; Jonah, Charles D. [Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439 (United States); Harvey, James T. [NorthStar Medical Technologies, LLC, 5249 Femrite Drive, Madison, WI 53718 (United States)

2013-04-19T23:59:59.000Z

208

Science DMZ for ALS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Science Engagement Move your data Programs & Workshops Science Requirements Reviews Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ @ UF Science DMZ @ CU...

209

Flüssiger Wasserstoff als Kraftstoff  

Science Journals Connector (OSTI)

Seit mehr als hundert Jahren stellen Kohlenwasserstoffe aus Rohöl fast ausschließlich die Basis für alle im Verkehr verwendeten Kraftstoffe dar. Ein Verkehr ohne Benutzung von Kraftstoffen auf Kohlenwasserstof...

Prof. Dr. Ing. habil. Walter Peschka

1984-01-01T23:59:59.000Z

210

Howes et al. Reply  

E-Print Network [OSTI]

Howes et al. Reply to Comment on "Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas" arXiv:0711.4355

G. G. Howes; S. C. Cowley; W. Dorland; G. W. Hammett; E. Quataert; A. A. Schekochihin; T. Tatsuno

2008-12-12T23:59:59.000Z

211

Fe3O4-LiMo3Se3 Nanoparticle Clusters as Superparamagnetic Nanocompasses  

E-Print Network [OSTI]

Fe3O4-LiMo3Se3 Nanoparticle Clusters as Superparamagnetic Nanocompasses Frank E. Osterloh,*, Hiroki bacteria is described. LiMo3Se3-Fe3O4 nanowire-nanoparticle composites were synthesized by a reaction of 3-iodopropionic acid treated LiMo3Se3 nanowire bundles with oleic acid-stabilized Fe3O4 nanoparticles of 2.8, 5

Osterloh, Frank

212

Luminescence in Mn-doped CdS nanocrystals  

Science Journals Connector (OSTI)

We have synthesized Mn-doped CdS nanocrystals (NCs) with size ranging from ... nm. Photoluminescence (PL) spectra of the doped NCs differ from that of the undoped...d-d...transitions. Electron paramagnetic resona...

Angshuman Nag; Sameer Sapra; Subhra Sen Gupta…

2008-06-01T23:59:59.000Z

213

Transverse acoustic actuation of Ni-Mn-Ga single crystals  

E-Print Network [OSTI]

Two methods for the transverse acoustic actuation of {110}-cut Ni-Mn-Ga single crystals are discussed. In this actuation mode, crystals are used that have the {110}- type twinning planes parallel to the base of the crystal. ...

Simon, Jesse Matthew

2007-01-01T23:59:59.000Z

214

Noyes, MN Natural Gas Pipeline Imports From Canada (Million Cubic...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

data. Release Date: 1302015 Next Release Date: 2272015 Referring Pages: U.S. Natural Gas Pipeline Imports by Point of Entry Noyes, MN Natural Gas Imports by Pipeline from...

215

Magnetic Skyrmion Phase in MnSi Thin Films.  

E-Print Network [OSTI]

??Detailed magnetometry and polarized neutron reflectometry studies were conducted on MnSi thin films grown epitaxially on Si(111) substrates. It is demonstrated that with an in-plane… (more)

Wilson, Murray

2013-01-01T23:59:59.000Z

216

The analysis of conductive solid samples by r.f. capacitively coupled plasma at atmospheric pressure  

Science Journals Connector (OSTI)

A radiofrequency capacitively coupled plasma (rf CCP) with tip-ring electrode geometry has been used for the analysis of Al, Co, Cr, Cu, Mn, Mo, Ni, and V in low and medium alloyed steel. The sample is used as...

Sorin D. Anghel; Tiberiu Frentiu…

1996-06-01T23:59:59.000Z

217

EIA-912.xls  

U.S. Energy Information Administration (EIA) Indexed Site

Feet) (IL, IN, IA, KY, MI, MN, MO, TN, & WI) South Central Region (Million Cubic Feet) (AL, AR, KS, LA, MS, OK, & TX) Mountain Region (Million Cubic Feet) PART 4. INVENTORY...

218

Estimations of Mo X-pinch plasma parameters on QiangGuang-1 facility by L-shell spectral analyses  

SciTech Connect (OSTI)

Plasma parameters of molybdenum (Mo) X-pinches on the 1-MA QiangGuang-1 facility were estimated by L-shell spectral analysis. X-ray radiation from X-pinches had a pulsed width of 1 ns, and its spectra in 2–3 keV were measured with a time-integrated X-ray spectrometer. Relative intensities of spectral features were derived by correcting for the spectral sensitivity of the spectrometer. With an open source, atomic code FAC (flexible atomic code), ion structures, and various atomic radiative-collisional rates for O-, F-, Ne-, Na-, Mg-, and Al-like ionization stages were calculated, and synthetic spectra were constructed at given plasma parameters. By fitting the measured spectra with the modeled, Mo X-pinch plasmas on the QiangGuang-1 facility had an electron density of about 10{sup 21} cm{sup ?3} and the electron temperature of about 1.2 keV.

Wu, Jian; Qiu, Aici [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Shaanxi 710049 (China) [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Shaanxi 710049 (China); State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Li, Mo; Wang, Liangping; Wu, Gang; Ning, Guo; Qiu, Mengtong [State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024 (China)] [State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024 (China); Li, Xingwen [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Shaanxi 710049 (China)] [State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Shaanxi 710049 (China)

2013-08-15T23:59:59.000Z

219

Tunneling spectroscopy of superconducting MoN and NbTiN grown by atomic layer deposition  

SciTech Connect (OSTI)

A tunneling spectroscopy study is presented of superconducting MoN and Nb{sub 0.8}Ti{sub 0.2}N thin films grown by atomic layer deposition (ALD). The films exhibited a superconducting gap of 2?meV and 2.4?meV, respectively, with a corresponding critical temperature of 11.5?K and 13.4?K, among the highest reported T{sub c} values achieved by the ALD technique. Tunnel junctions were obtained using a mechanical contact method with a Au tip. While the native oxides of these films provided poor tunnel barriers, high quality tunnel junctions with low zero bias conductance (below ?10%) were obtained using an artificial tunnel barrier of Al{sub 2}O{sub 3} on the film's surface grown ex situ by ALD. We find a large critical current density on the order of 4?×?10{sup 6}?A/cm{sup 2} at T?=?0.8T{sub c} for a 60?nm MoN film and demonstrate conformal coating capabilities of ALD onto high aspect ratio geometries. These results suggest that the ALD technique offers significant promise for thin film superconducting device applications.

Groll, Nickolas R., E-mail: ngroll@anl.gov; Klug, Jeffrey A.; Claus, Helmut; Pellin, Michael J.; Proslier, Thomas, E-mail: proslier@anl.gov [Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Cao, Chaoyue; Becker, Nicholas G.; Zasadzinski, John F. [Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616 (United States); Altin, Serdar [Fen Edebiyat Fakultesi, Fizik Bolumu, Inonu Universitesi, 44280 Malatya (Turkey)

2014-03-03T23:59:59.000Z

220

Experimental activities supporting commercial U.S. accelerator production of 99-Mo  

SciTech Connect (OSTI)

{sup 99m}Tc, the daughter product of {sup 99}Mo, is the most commonly used radioisotope for nuclear medicine in the U.S. Experiments are being performed at Los Alamos National Laboratory and Argonne National Laboratory to demonstrate production of {sup 99}Mo using accelerators. The {sup 100}Mo({gamma},n){sup 99}Mo reaction in an enriched {sup 100}Mo target is currently under investigation. Three scaled low-power production experiments using a 20-MeV electron linac at Argonne have been performed to date. Two of these experiments used natural Mo targets and produced a total of 613 {mu}C of {sup 99}Mo. The third experiment used an enriched {sup 100}Mo target and produced 10.5 mCi of {sup 99}Mo. Following irradiation the targets were dissolved and the low specific activity solution was processed through an ARSII generator from NorthStar Medical Radioisotopes. Yields of {sup 99m}Tc >95% have been observed.

Dale, Gregory E [Los Alamos National Laboratory; Chemerisov, Sergey D [ANL; Vandegrift, George F [ANL

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Oxidation Behavior of Mo-Si-B Alloys in Wet Air  

SciTech Connect (OSTI)

Multiphase composite alloys based on the Mo-Si-B system are candidate materials for ultra-high temperature applications. In non load-bearing uses such as thermal barrier coatings or heat exchangers in fossil fuel burners, these materials may be ideally suited. The present work investigated the effect of water vapor on the oxidation behavior of Mo-Si-B phase assemblages. Three alloys were studied: Alloy 1 = Mo{sub 5}Si{sub 3}B{sub x} (T1)- MoSi{sub 2}- MoB, Alloy 2 = T1- Mo{sub 5}SiB{sub 2} (T2)- Mo{sub 3}Si, and Alloy 3 = Mo- T2- Mo{sub 3}Si. Tests were conducted at 1000 and 1100C in controlled atmospheres of dry air and wet air nominally containing 18, 55, and 150 Torr H{sub 2}O. The initial mass loss of each alloy was approximately independent of the test temperature and moisture content of the atmosphere. The magnitude of these initial losses varied according to the Mo content of the alloys. All alloys formed a continuous, external silica scale that protected against further mass change after volatilization of the initially formed MoO{sub 3}. All alloys experienced a small steady state mass change, but the calculated rates cannot be quantitatively compared due to statistical uncertainty in the individual mass measurements. Of particular interest is that Alloy 3, which contains a significant volume fraction of Mo metal, formed a protective scale. All alloys formed varying amounts of subscale Mo and MoO{sub 2}. This implies that oxygen transport through the external silica scale has been significantly reduced. For all alloys, water vapor accelerated the growth of a multiphase interlayer at the silica scale/unoxidized alloy interface. This interlayer is likely composed of fine Mo and MoO{sub 2} that is dispersed within a thin silica matrix. Alloy 3 was particularly sensitive to water accelerated growth of this interlayer. At 1100 C, the scale thickness after 300 hours increased from about 20 mm in dry air to nearly 100 mm in wet air.

M. Kramer; A. Thom; O. Degirmen; V. Behrani; M. Akinc

2002-04-22T23:59:59.000Z

222

Change in stacking-fault energy with Mn content and its influence on the damping capacity of the austenitic phase in Fe-high Mn alloys  

Science Journals Connector (OSTI)

The effect of Mn content on the damping capacity of ? austenitic ... been studied in relation to the stacking-fault energy ( SFE), on the basis of ... austenite decreases with the increase in the Mn content. The ...

Joong-Hwan Jun; Chong-Sool Choi

223

Response of the electric resistance of 40-nm-thick La0.67Ca0.33MnO3 films to an increase in the lattice mismatch between film and substrate  

Science Journals Connector (OSTI)

We have studied the structure and resistivity of 40-nm-thick La0.67Ca0.33MnO3 (LCMO) films coherently grown on (001)-oriented La0.29Sr0.71Al0.65Ta0.35O3 single crystal substrates bearing epitaxial interlayers of ...

Yu. A. Boikov; V. A. Danilov

2005-01-01T23:59:59.000Z

224

Science DMZ for ALS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS ALS About ESnet Overview ESnet Staff Governance Our Network Case Studies OSCARS Case Studies Science DMZ Case Studies Science DMZ CU Science DMZ Penn State & VTTI Science DMZ NOAA Science DMZ NERSC Science DMZ ALS Multi-facility Workflow LCLS ESnet Strategic Plan ESnet Organizational Chart ESnet History Science Requirements Careers Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Science DMZ for ALS Many beamline scientists at Berkeley Lab's Advanced Light Source (ALS) are or will be experiencing slower network speeds because of instrument upgrades. These new instruments, or more specifically detectors, are

225

Magnetoluminescence of CdTe/MnTe/CdMgTe heterostructures with ultrathin MnTe layers  

SciTech Connect (OSTI)

CdTe/MnTe/CdMgTe quantum-well structures with one or two monolayers of MnTe inserted at CdTe/CdMgTe interfaces were fabricated. The spectra of the excitonic luminescence from CdTe quantum wells and their variation with temperature indicate that introduction of ultrathin MnTe layers improves the interface quality. The effect of a magnetic field in the Faraday configuration on the spectral position of the exciton-emission peaks indicates that frustration of magnetic moments in one-monolayer MnTe insertions is weaker than in two-monolayer insertions. The effect of a magnetic field on the exciton localization can be explained in terms of the exciton wave-function shrinkage and obstruction of the photoexcited charge-carrier motion in the quantum well.

Agekyan, V. F., E-mail: vfag@rambler.ru [St. Petersburg State University, Fock Institute of Physics (Russian Federation); Holz, P. O. [Polish Academy of Sciences, Institute of Physics (Poland); Karczewski, G. [Linkoeping University (Sweden); Katz, V. N. [St. Petersburg State University, Fock Institute of Physics (Russian Federation); Moskalenko, E. S. [Russian Academy of Sciences, Ioffe Physical Technical Institute (Russian Federation); Serov, A. Yu.; Filosofov, N. G. [St. Petersburg State University, Fock Institute of Physics (Russian Federation)

2011-10-15T23:59:59.000Z

226

Characterization of U-Mo Foils for AFIP-7  

SciTech Connect (OSTI)

Twelve AFIP in-process foil samples, fabricated by either Y-12 or LANL, were shipped from LANL to PNNL for potential characterization using optical and scanning electron microscopy techniques. Of these twelve, nine different conditions were examined to one degree or another using both techniques. For this report a complete description of the results are provided for one archive foil from each source of material, and one unirradiated piece of a foil of each source that was irradiated in the Advanced Test Reactor. Additional data from two other LANL conditions are summarized in very brief form in an appendix. The characterization revealed that all four characterized conditions contained a cold worked microstructure to different degrees. The Y-12 foils exhibited a higher degree of cold working compared to the LANL foils, as evidenced by the highly elongated and obscure U-Mo grain structure present in each foil. The longitudinal orientations for both of the Y-12 foils possesses a highly laminar appearance with such a distorted grain structure that it was very difficult to even offer a range of grain sizes. The U-Mo grain structure of the LANL foils, by comparison, consisted of a more easily discernible grain structure with a mix of equiaxed and elongated grains. Both materials have an inhomogenous grain structure in that all of the characterized foils possess abnormally coarse grains.

Edwards, Danny J.; Ermi, Ruby M.; Schemer-Kohrn, Alan L.; Overman, Nicole R.; Henager, Charles H.; Burkes, Douglas; Senor, David J.

2012-11-07T23:59:59.000Z

227

Comparison of the EXAFS Spectra of Heteronuclear MnCa/Sr Model Complexes to the Oxygen-Evolving Mn(4)Ca Complex of Photosystem II  

SciTech Connect (OSTI)

Heterometallic Mn-Ca and Mn-Sr complexes have been prepared and employed as model complexes for Ca and Sr EXAFS spectral comparisons with the Oxygen-Evolving Complex (OEC) of Photosystem II (PS II); these have revealed similarities that support the presence of at least one O atom bridge between the Mn and Ca/Sr in the OEC.

Mishra, A.; Yano, J.; Pushkar, Y.; Abboud, K.A.; Yachandra, V.K.; Christou, G.

2009-06-03T23:59:59.000Z

228

PVP-Assisted ZrO2 coating on LiMn2O4 spinel cathode nanoparticles prepared by MnO2 nanowire templates  

E-Print Network [OSTI]

issues regarding the use of LiMn2O4 spi- nels as cathode materials is their large capacity loss observed active material. However, enhanced rate capabilities can be achieved in nanostructured materials becausePVP-Assisted ZrO2 coating on LiMn2O4 spinel cathode nanoparticles prepared by MnO2 nanowire

Cho, Jaephil

229

Catalytic Properties of MnO, Fe2O3, and MnFe2O4 in the Steam Reforming of Ethanol  

Science Journals Connector (OSTI)

The catalytic activity of manganese ferrite MnFe2O4 and the oxides MnO and Fe2O3 in the steam reforming of ethanol (SRE) has been studied. The similarity...2O3 and MnFe2O4 has been established which may indicate ...

L. Yu. Dolgykh; I. L. Stolyarchuk; L. A. Staraya…

2014-09-01T23:59:59.000Z

230

Development of FeNiMoB thin film materials for microfabricated magnetoelastic sensors  

SciTech Connect (OSTI)

Metglas{sup TM} 2826MB foils of 25-30 {mu}m thickness with the composition of Fe{sub 40}Ni{sub 38}Mo{sub 4}B{sub 18} have been used for magnetoelastic sensors in various applications over many years. This work is directed at the investigation of {approx}3 {mu}m thick iron-nickel-molybdenum-boron (FeNiMoB) thin films that are intended for integrated microsystems. The films are deposited on Si substrate by co-sputtering of iron-nickel (FeNi), molybdenum (Mo), and boron (B) targets. The results show that dopants of Mo and B can significantly change the microstructure and magnetic properties of FeNi materials. When FeNi is doped with only Mo its crystal structure changes from polycrystalline to amorphous with the increase of dopant concentration; the transition point is found at about 10 at. % of Mo content. A significant change in anisotropic magnetic properties of FeNi is also observed as the Mo dopant level increases. The coercivity of FeNi films doped with Mo decreases to a value less than one third of the value without dopant. Doping the FeNi with B together with Mo considerably decreases the value of coercivity and the out-of-plane magnetic anisotropy properties, and it also greatly changes the microstructure of the material. In addition, doping B to FeNiMo remarkably reduces the remanence of the material. The film material that is fabricated using an optimized process is magnetically as soft as amorphous Metglas{sup TM} 2826MB with a coercivity of less than 40 Am{sup -1}. The findings of this study provide us a better understanding of the effects of the compositions and microstructure of FeNiMoB thin film materials on their magnetic properties.

Liang Cai; Gooneratne, Chinthaka; Cha, Dongkyu; Chen Long; Kosel, Jurgen [Computer Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, 4700 KAUST, Thuwal 23955 (Saudi Arabia); Gianchandani, Yogesh [Department of Electrical Engineering and Computer Science, 1301 Beal Ave., University of Michigan, Ann Arbor, Michigan 48109 (United States)

2012-12-01T23:59:59.000Z

231

B(E2) values and the search for the critical point symmetry X(5) in 104Mo and 106Mo  

Science Journals Connector (OSTI)

Lifetimes of the first 4+ and 6+ states in 104Mo and 106Mo have been measured using the recoil distance method following spontaneous fission of 252Cf. The experiment was performed at the 88-inch cyclotron of the Lawrence Berkeley National Laboratory employing the Gammasphere array and the New Yale Plunger Device. Reduced transition probabilities in the ground state band of 104Mo are compared with predictions of the critical point symmetry X(5) for phase transitional nuclei between rotational and vibrational shape. While known level energies of 104Mo are in good agreement with the X(5) predictions, the analysis of the measured B(E2) values favors a rotor interpretation.

C. Hutter; R. Krücken; A. Aprahamian; C. J. Barton; C. W. Beausang; M. A. Caprio; R. F. Casten; W.-T. Chou; R. M. Clark; D. Cline; J. R. Cooper; M. Cromaz; A. A. Hecht; A. O. Macchiavelli; N. Pietralla; M. Shawcross; M. A. Stoyer; C. Y. Wu; N. V. Zamfir

2003-05-28T23:59:59.000Z

232

AMoRE: Collaboration for searches for the neutrinoless double-beta decay of the isotope of 100Mo with the aid of 40Ca100MoO4 as a cryogenic scintillation detector  

Science Journals Connector (OSTI)

The AMoRE (Advanced Mo based Rare process Experiment) Collaboration is planning to employ 40Ca100MoO4...single crystals as a cryogenic Scintillation detector for studying the neutrinoless double-beta decay of the...

N. D. Khanbekov

2013-09-01T23:59:59.000Z

233

A Cubic Fe4Mo4 Oxo Framework and Its Reversible Four-Electron Redox Chemistry  

Science Journals Connector (OSTI)

‡ Max Planck Institute for Chemical Energy Conversion (formerly Bioinorganic Chemistry), Stiftstraße 34?36, 45470 Mülheim, Germany ... Indeed, a salt with a FeII2FeIII2MoVI4 constellation, [Fe4Mo4](TCNQ)2 (2), could be isolated after treatment with TCNQ. ... data indicate that the binding energies of all the elements in the title compds. ...

Jan P. Falkenhagen; Beatrice Braun; Eckhard Bill; Dominik Sattler; Christian Limberg

2014-07-01T23:59:59.000Z

234

Corrosion Behavior of Solution-Annealed CoCrMo Medical Implant  

E-Print Network [OSTI]

! ! ! Corrosion Behavior of Solution- Annealed CoCrMo Medical Implant Alloys Pooja Panigrahi University June 6, 2011 #12;! ! ""! Corrosion Behavior of Solution-Annealed CoCrMo Medical Implant Alloys and Applied Sciences Northwestern University June 6, 2011 Abstract Corrosion behavior of solution annealed

Shull, Kenneth R.

235

Magnetically Mediated Transparent Conductors: In2O3 Doped with Mo J. E. Medvedeva*  

E-Print Network [OSTI]

Magnetically Mediated Transparent Conductors: In2O3 Doped with Mo J. E. Medvedeva* Department August 2006) First-principles band structure investigations of the electronic, optical, and magnetic properties of Mo- doped In2O3 reveal the vital role of magnetic interactions in determining both

Medvedeva, Julia E.

236

GoPoMoSA: A Goal-Oriented Process Modeling and Simulation Advisor  

E-Print Network [OSTI]

and improvement. This paper presents GoPoMoSA (Goal-oriented Process Modeling and Simulation Advisor), a semi-automatedGoPoMoSA: A Goal-Oriented Process Modeling and Simulation Advisor Xu Bai and LiGuo Huang Dept and Simulation Advisor that semi-automatically discovers suitable Software Process Modeling and Simula- tion

Egyed, Alexander

237

Stability of Graphene doping with MoO_3 and I_2  

E-Print Network [OSTI]

We dope graphene by evaporation of MoO_3 or by solution-deposition of I_2 and assess the doping stability for its use as transparent electrodes. Electrical measurements show that both dopants increase the graphene sheet conductivity and find that Mo...

D’Arsié, Lorenzo; Esconjauregui, Santiago; Weatherup, Robert; Guo, Yuzheng; Bhardwaj, Sunil; Centeno, Alba; Zurutuza, Amaia; Cepek, Cinzia; Robertson, John

2014-09-08T23:59:59.000Z

238

ALS Beamlines Directory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Beamlines Directory Print ALS Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

239

ALS Beamlines Directory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS Beamlines Directory Print ALS Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

240

ALS User Meeting Archives  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ALS User Meeting Archives ALS User Meeting Archives Past User Meeting Agendas, Workshops, and Awards Year Agenda Workshops David A. Shirley (Science) Klaus Halbach (Instrumentation) Tim Renner (Service) 2012 2012 User Meeting Agenda 2012 User Meeting Workshops 2012 ALS User Meeting Awards Carl Percival, Dudley Shallcross, Craig Taatjes and David Osborn (Sandia), for making the first direct measurements of the reactions of Criegee intermediates, and showing that their impact on tropospheric chemistry and climate may be substantially greater than previously assumed. 2012 ALS User Meeting Awards Jeff Dickert and Simon Morton of Berkeley Lab's Physical Biosciences Division for the invention and implementation of the Compact Variable Collimator (CVC), which has led to a dramatic increase in productivity of protein crystallography.

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Hacking als Grenzüberschreitung  

Science Journals Connector (OSTI)

In der Vergangenheit hat es sich als nützlich erwiesen, am Anfang eines Vortrages erst einmal ein paar Worte zu dem Verein zu verlieren, in dessen Vorstand ich mitwirke. Der Chaos Computer Club (CCC) ist viele...

Frank Simon

1994-01-01T23:59:59.000Z

242

ALS Staff Photo  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Staff Photo Print On May 14, 2013, members of ALS staff posed for a group photo in front of the dome. A hi-res version can be downloaded here. The last staff photo was taken in...

243

Flachglas Als Baustoff  

Science Journals Connector (OSTI)

Der Werkstoff Glas bezeichnet ein Schmelzprodukt, das in der Natur als erstarrte vulkanische Schmelze vorkommt und dem Mensch bereits vor 5000 Jahren für die Herstellung von Schmuck und Werkstücken diente. Im ...

2007-01-01T23:59:59.000Z

244

Adsorption and Oxidation of Elemental Mercury over Ce-MnOx/Ti-PILCs  

Science Journals Connector (OSTI)

A series of innovative Ce–Mn/Ti-pillared-clay (Ce–Mn/Ti-PILC) catalysts combining the advantages of PILCs and Ce–Mn were investigated for elemental mercury (Hg0) capture at 100–350 °C in the absence of HCl in the flue gas. ... The catalyst characterization indicated that the 6%Ce-6%MnOx/Ti-PILC catalyst possessed a large specific surface area and high dispersion of Ce and Mn on the surface. ... The experimental results indicated that the 6%Ce-6%MnOx/Ti-PILC catalyst exhibited high Hg0 capture (>90%) at 100–350 °C. ...

Chuan He; Boxiong Shen; Jianhong Chen; Ji Cai

2014-06-23T23:59:59.000Z

245

Domestic production of medical isotope Mo-99 moves a step closer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Domestic production of medical isotope Mo-99 Domestic production of medical isotope Mo-99 Domestic production of medical isotope Mo-99 moves a step closer Irradiated uranium fuel has been recycled and reused for molybdenum-99 (Mo-99) production, with virtually no losses in Mo-99 yields or uranium recovery. May 13, 2013 From left, Los Alamos scientists Roy Copping, Sean Reilly, and Daniel Rios. Copping examines the Buchi Multivapor P-12 Evaporator, and Reilly and Rios are at the Agilent Technologies Cary 60 UV-Vis Spectrometer. From left, Los Alamos scientists Sean Reilly, Roy Copping, and Daniel Rios. Sean is looking at the Buchi Multivapor P-12 Evaporator, and Roy and Daniel are at the Agilent Technologies Cary 60 UV-Vis Spectrometer. Contact Nancy Ambrosiano Communications Office (505) 667-0471

246

Photo-oxidation method using MoS2 nanocluster materials  

DOE Patents [OSTI]

A method of photo-oxidizing a hydrocarbon compound is provided by dispersing MoS.sub.2 nanoclusters in a solvent containing a hydrocarbon compound contaminant to form a stable solution mixture and irradiating the mixture to photo-oxide the hydrocarbon compound. Hydrocarbon compounds of interest include aromatic hydrocarbon and chlorinated hydrocarbons. MoS.sub.2 nanoclusters with an average diameter less than approximately 10 nanometers are shown to be effective in decomposing potentially toxic aromatic and chlorinated hydrocarbons, such as phenol, pentachlorophenol, chlorinated biphenols, and chloroform, into relatively non-toxic compounds. The irradiation can occur by exposing the MoS.sub.2 nanoclusters and hydrocarbon compound mixture with visible light. The MoS.sub.2 nanoclusters can be introduced to the toxic hydrocarbons as either a MoS.sub.2 solution or deposited on a support material.

Wilcoxon, Jess P. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

247

Development of LEU targets for {sup 99}Mo production and their chemical processing status 1993  

SciTech Connect (OSTI)

Most of the world`s supply of {sup 99m}{Tc} for medical purposes is currently produced from {sup 99}Mo derived from the fastening of high enriched uranium (HEU). Substitution of low enriched uranium (LEU) silicide fuel for the HEU alloy and aluminide fuels used in current target designs will allow equivalent {sup 99}Mo yields with little change in target geometries. Substitution of uranium metal for uranium oxide films in other target designs will also allow the substitution of LEU for HEU. In 1993, DOE renewed funding that was terminated in 1990 for development of LEU targets for {sup 99}Mo production. During the past year, our efforts were to (1) renew contact with {sup 99}Mo producers, (2) define the means to test our process for recovering {sup 99}Mo from irradiated LEU-silicide targets, and (3) begin to test our process on spent LEU-silicide miniplates stored at ANL from past fuel development studies.

Vandegrift, G.F.; Hutter, J.C.; Srinivasan, B.; Matos, J.E.; Snelgrove, J.L.

1993-10-01T23:59:59.000Z

248

Spin dependent transport properties of Mn-Ga/MgO/Mn-Ga magnetic tunnel junctions with metal(Mg, Co, Cr) insertion layer  

SciTech Connect (OSTI)

We report a first principles theoretical investigation of spin polarized quantum transport in Mn{sub 2}Ga/MgO/Mn{sub 2}Ga and Mn{sub 3}Ga/MgO/Mn{sub 3}Ga magnetic tunneling junctions (MTJs) with the consideration of metal(Mg, Co, Cr) insertion layer effect. By changing the concentration of Mn, our calculation shows a considerable disparity in transport properties: A tunneling magnetoresistance (TMR) ratio of 852% was obtained for Mn{sub 2}Ga-based MTJs, however, only a 5% TMR ratio for Mn{sub 3}Ga-based MTJs. In addition, the influence of insertion layer has been considered in our calculation. We found the Co insertion layer can increase the TMR of Mn{sub 2}Ga-based MTJ to 904%; however, the Cr insertion layer can decrease the TMR by 668%; A negative TMR ratio can be obtained with Mg insertion layer. Our work gives a comprehensive understanding of the influence of different insertion layer in Mn-Ga based MTJs. It is proved that, due to the transmission can be modulated by the interfacial electronic structure of insertion, the magnetoresistance ratio of Mn{sub 2}Ga/MgO/Mn{sub 2}Ga MTJ can be improved by inserting Co layer.

Liang, S. H.; Tao, L. L.; Liu, D. P., E-mail: dpliu@iphy.ac.cn; Han, X. F., E-mail: xfhan@iphy.ac.cn [State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Lu, Y. [Institut Jean Lamour, UMR 7198, CNRS-Nancy Université, BP 239, 54506 Vandoeuvre (France)

2014-04-07T23:59:59.000Z

249

Magnetic properties of transition metal doped AlN nanosheet: First-principle studies  

SciTech Connect (OSTI)

We carry out our first-principles calculations within density functional theory to study the 3d transition metal (TM) doped AlN nanosheets. The calculated results indicate that a stoichiometric AlN nanosheet is graphene-like structure and nonmagnetic. The TM impurities can induce magnetic moments, localized mainly on the 3d TM atoms and neighboring N atoms. Our calculated results of TM-doped nanosheet systems indicate a strong interaction between 3d orbit of TM atom and the 2p orbit of N atoms. In addition, the Mn- and Ni-doped AlN nanosheet with half-metal characters seems to be good candidates for spintronic applications. When substituting two Al atoms, the relative energies of the states between ferromagnetic and antiferromagnetic coupling are investigated sufficiently. The exchange coupling of Co- and Ni-doped AlN nanosheets exhibits a transformation with different distances of two TM atoms and that of Cr-, Mn-, and Fe-doped AlN nanosheets is not changed.

Shi, Changmin; Qin, Hongwei, E-mail: qin-hw@vip.163.com; Zhang, Yongjia; Hu, Jifan; Ju, Lin [School of Physics, State Key Laboratory for Crystal Materials, Shandong University, Jinan 250100 (China)

2014-02-07T23:59:59.000Z

250

Electrical properties of a-C:Mo films produced by dual-cathode filtered cathodic arc plasma deposition  

E-Print Network [OSTI]

and Related Materials Electrical properties of a-C:Mo filmsNo. DE-AC02-05CH11231. Electrical properties of a-C:Mo filmsair. Film resistivity and electrical activation energy were

Sansongsiri, Sakon

2008-01-01T23:59:59.000Z

251

Electronic Structure Description of the Cis-MoOS Unit in Models for Molybdenum Hydroxylases  

SciTech Connect (OSTI)

The molybdenum hydroxylases catalyze the oxidation of numerous aromatic heterocycles and simple organics and, unlike other hydroxylases, utilize water as the source of oxygen incorporated into the product. The electronic structures of the cis-MoOS units in CoCp{sub 2}[Tp{sup iPr}Mo{sup V}OS(OPh)] and Tp{sup iPr}Mo{sup VI}OS(OPh) (Tp{sup iPr} = hydrotris(3-isopropylpyrazol-1-yl)borate), new models for molybdenum hydroxylases, have been studied in detail using S K-edge X-ray absorption spectroscopy, vibrational spectroscopy, and detailed bonding calculations. The results show a highly delocalized Mo {double_bond} S {pi}* LUMO redox orbital that is formally Mo(d{sub xy}) with {approx}35% sulfido ligand character. Vibrational spectroscopy has been used to quantitate Mo-S{sub sulfido} bond order changes in the cis-MoOS units as a function of redox state. Results support a redox active molecular orbital that has a profound influence on MoOS bonding through changes to the relative electro/nucleophilicity of the terminal sulfido ligand accompanying oxidation state changes. The bonding description for these model cis-MoOS systems supports enzyme mechanisms that are under orbital control and dominantly influenced by the unique electronic structure of the cis-MoOS site. The electronic structure of the oxidized enzyme site is postulated to play a role in polarizing a substrate carbon center for nucleophilic attack by metal activated water and acting as an electron sink in the two-electron oxidation of substrates.

Doonan, C.J.; Rubie, N.D.; Peariso, K.; Harris, H.H.; Knottenbelt, S.Z.; George, G.N.; Young, C.G.; Kirk, M.L.; /New Mexico U. /Melbourne U. /SLAC, SSRL

2009-04-29T23:59:59.000Z

252

99Mo/99mTc separation: An assessment of technology options  

Science Journals Connector (OSTI)

Several strategies for the effective separation of 99mTc from 99Mo have been developed and validated. Due to the success of column chromatographic separation using acidic alumina coupled with high specific activity fission 99Mo (F 99Mo) for production of 99Mo/99mTc generators, however, most technologies until recently have generated little interest. The reduced availability of F 99Mo and consequently the shortage of 99Mo/99mTc column generators in the recent past have resurrected interest in the production of 99Mo as well as 99mTc by alternate routes. Most of these alternative production processes require separation techniques capable of providing clinical grade 99mTc from low specific activity 99Mo or irradiated Mo targets. For this reason there has been renewed interest in alternate separation routes. This paper reviews the reported separation technologies which include column chromatography, solvent extraction, sublimation and gel systems that have been traditionally used for the fabrication of 99Mo/99mTc generator systems. The comparative advantage, disadvantage, and technical challenges toward adapting the emerging requirements are discussed. New developments such as solid-phase column extraction, electrochemical separation, extraction chromatography, supported liquid membrane (SLM) and thermochromatographic techniques are also being evaluated for their potential application in the changed scenario of providing 99mTc from alternate routes. Based on the analysis provided in this review, it appears that some proven separation technologies can be quickly resurrected for the separation of clinical grade 99mTc from macroscopic levels of reactor or cyclotron irradiated molybdenum targets. Furthermore, emerging technologies can be developed further to respond to the expected changing modes of 99mTc production.

Ashutosh Dash; F.F. (Russ) Knapp Jr.; M.R.A. Pillai

2013-01-01T23:59:59.000Z

253

Optical properties of Mo6S3I6 nanowires  

Science Journals Connector (OSTI)

Optical reflectivity and absorbance measurements of oriented Mo6S3I6 nanowire thin films and dispersions in different solvents are presented extending from the far infrared to the ultraviolet. In spite of the highly one-dimensional character of the nanowire material and narrow electronic valence and conduction subbands, as predicted by the density-functional theory calculations, sharp Van Hove features in the optical absorption spectra are not observed, partly because of the large density of interpenetrating electron subbands and partly due to damping and disorder. The optically measured electrical conductivity extrapolated to zero frequency ?1(??0) and the calculated conductivity are significantly higher than the typical dc value from resistance measurements, indicating that disorder limits electron transport, a feature characteristic of strongly one-dimensional systems.

D. Vengust; F. Pfuner; L. Degiorgi; I. Vilfan; V. Nicolosi; J. N. Coleman; D. Mihailovic

2007-08-08T23:59:59.000Z

254

New phases in the system LiMnVO{sub 4}-Mn{sub 3}(VO{sub 4}){sub 2}  

SciTech Connect (OSTI)

The synthesis of orthorhombic Mn{sub 3}(VO{sub 4}){sub 2} via a simple solid state route as well as the description of a new tetragonal high temperature phase are reported in this paper. Additionally, the system LiMnVO{sub 4}-Mn{sub 3}(VO{sub 4}){sub 2} (=Mn{sub 1.5}VO{sub 4}), described by the formula Li{sub x}Mn{sub 1.5-x/2}VO{sub 4}, is investigated in detail, showing that substitution of one Mn{sup 2+} in Mn{sub 1.5}VO{sub 4} by two Li{sup +} ions favors the formation of the tetragonal high temperature phase for x{<=}0.22. This substitution is facilitated by the statistical half occupancy of the 4b site by Mn{sup 2+} in tetragonal Mn{sub 1.5}VO{sub 4}, whereas additional crystallographic sites would have to be occupied in the orthorhombic phase. The inverse substitution of Li by Mn in orthorhombic LiMnVO{sub 4} is also shown to be possible in the range 0.72{<=}x{<=}1. For 0.22{<=}x{<=}0.72, there is a large miscibility gap with a two phase mixture of the tetragonal Mn{sub 1.5}VO{sub 4} type and orthorhombic LiMnVO{sub 4} type phases. - Graphical Abstract: The unusual coordination of Mn in the form of a stella quadrangula with the surrounding vanadate groups. Highlights: > First synthesis of orthorhombic Mn{sub 3}(VO{sub 4}){sub 2} via a simple solid state route. > The crystal chemistry of the phases involved is rather complicated and it depends on the amount of Li that is incorporated. > System LiMnVO{sub 4}-Mn{sub 3}(VO{sub 4}){sub 2} (=Mn{sub 1.5}VO{sub 4}), described by the formula Li{sub x}Mn{sub 1.5-x/2}VO{sub 4}, is investigated in detail.

Clemens, Oliver [Universitaet des Saarlandes, Institut fuer Anorganische und Analytische Chemie und Radiochemie, Am Markt, Zeile 5, 66125 Saarbruecken (Germany); Haberkorn, Robert [Universitaet des Saarlandes, Anorganische Festkoerperchemie, Am Markt, Zeile 3, 66125 Saarbruecken (Germany); Beck, Horst Philipp, E-mail: hp.beck@mx.uni-saarland.de [Universitaet des Saarlandes, Institut fuer Anorganische und Analytische Chemie und Radiochemie, Am Markt, Zeile 5, 66125 Saarbruecken (Germany)

2011-10-15T23:59:59.000Z

255

Comparative study of gel-based separated arc-discharge, HiPCO, and CoMoCAT carbon nanotubes  

E-Print Network [OSTI]

Nano Res 1 Comparative study of gel-based separated arc-discharge, HiPCO, and CoMoCAT carbon) Comparative Study of Gel-based Separated Arc-discharge, HiPCO, and CoMoCAT Carbon Nanotubes kinds of mainstream carbon nanotubes (arc-discharge, HiPCO, CoMoCAT) separated using low-cost gel

Zhou, Chongwu

256

Electronic structure and point defect concentrations of \\{C11b\\} MoSi2 by first-principles calculations  

Science Journals Connector (OSTI)

Abstract The electronic structure and point defect concentrations of \\{C11b\\} MoSi2 were studied systematically by the first-principles calculations based on density functional theory. Mo vacancy-induced charge density shows strong directional covalent bonds caused by hybridization of Mo-4d and Si-3p orbitals, which indicates that MoSi2 has low fracture toughness at room temperature. Combining with Wagner–Schottky model, these point defect concentrations of \\{C11b\\} MoSi2 at 2173, 1673, 1223, 773 K as function of composition were also investigated. It is found that the point defect concentrations change drastically for off-stoichiometric compounds. The main structural defects are preferably Mo vacancies or Si anti-structure atoms on the Mo sublattices in Si-rich alloy, and Mo anti-site in Mo-rich alloy, respectively. According to the calculated effective formation enthalpies of point defects, the effective formation enthalpies from big to small in sequence are Mo anti-site, Si anti-site and vacancy (Mo and Si). This result suggests that the vacancy, especially for Si vacancy, is a main type of point defect in \\{C11b\\} MoSi2 system.

X.P. Li; S.P. Sun; H.J. Wang; W.N. Lei; Y. Jiang; D.Q. Yi

2014-01-01T23:59:59.000Z

257

SiMoL A Modeling Language for Simulation and (Re-)Configuration Iulia Nica and Franz Wotawa  

E-Print Network [OSTI]

be used for both simulation and configuration purposes. SiMoL is an object- oriented language that allows for (restricted) simulation and con- figuration at the same time. SiMoL is an object-oriented languageSiMoL­ A Modeling Language for Simulation and (Re-)Configuration Iulia Nica and Franz Wotawa

Jannach, Dietmar

258

Synthesis and characterization of novel group VI metal (Mo, W) nitride and oxide compounds  

SciTech Connect (OSTI)

Investigations into the preparation of tungsten nitrides have involved the synthesis of molecular precursors, and their conversion to tungsten nitrides at relatively low temperatures. Two interesting molecular precursors, [WNCl{sub 3}{center_dot}NCCH{sub 3}]{sub 4} and WN(N{sub 3}){sub 3}{center_dot}xNCCH{sub 3}, have been prepared and characterized. The molecular structure of the first consists of a W{sub 4}N{sub 4} tetrameric core with multiple and single W-N bonds arranged in an alternating fashion. Three new solid state phases, amorphous W{sub 3}N{sub 5}, cubic WN, and W{sub 2}N{sub 2}(C{sub 2}N{sub 2}), have been discovered by solid state and chemical vapor transport reactions. The structures have been investigated. A systematic study in the Ln{sub 2}O{sub 3}-MoO{sub 3}-Mo (Ln = La, Ce, Pr, Nd, Sm) system has been explored to better understand LnMo{sub 8}O{sub 14}. The study has shown that the sizes of the rare-earth cations affect the formation of these phases. Larger cations (La, Ce, and Pr) aid in the formation of trans-Mo{sub 8} bicapped octahedra, and the smaller cations (Nd, Sm) only stabilize the cis-Mo{sub 8} bicapped octahedra. Magnetic susceptibility measurements have indicated that no effective moment contribution arises from the Mo{sub 8} metal clusters, even though the cis-Mo{sub 8} cluster in LnMo{sub 8}O{sub 14}, containing all cis-Mo{sub 8} octahedra, apparently contains an odd number of electrons (23). Electrical resistivity measurements and electronic structure calculations have shown that the LnMo{sub 8}O{sub 14} compounds containing cis-Mo{sub 8} clusters are metallic, and the LnMo{sub 8}O{sub 14} compounds containing a 1:1 ratio of cis- to trans-Mo{sub 8} clusters are semiconducting.

Zhang, Z.

1998-02-23T23:59:59.000Z

259

Origin of the charge gap in LaMnPO  

Science Journals Connector (OSTI)

We present high temperature inelastic neutron scattering and magnetic susceptibility measurements of the antiferromagnetic insulator LaMnPO that are consistent with the presence of two-dimensional magnetic correlations up to a temperature Tmax?700K?TN=375 K, the Néel temperature. Optical transmission measurements show the T=300 K direct charge gap ?=1 eV has decreased only marginally by 500 K and suggest it decreases by only 10% at Tmax. Density functional theory and dynamical mean-field theory calculations reproduce a direct charge gap in paramagnetic LaMnPO only when a strong Hund's coupling JH=0.9 eV is included, as well as on-site Hubbard U=8 eV. Our results show that LaMnPO is a Mott-Hund's insulator, in which the charge gap is rather insensitive to antiferromagnetic exchange coupling.

D. E. McNally; J. W. Simonson; K. W. Post; Z. P. Yin; M. Pezzoli; G. J. Smith; V. Leyva; C. Marques; L. DeBeer-Schmitt; A. I. Kolesnikov; Y. Zhao; J. W. Lynn; D. N. Basov; G. Kotliar; M. C. Aronson

2014-11-18T23:59:59.000Z

260

MN471004, Electrical Safety Manual Sponsor: Michael W. Hazen, 4000  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MN471004, Electrical Safety Manual MN471004, Electrical Safety Manual Sponsor: Michael W. Hazen, 4000 Revision Date: June 9, 2011 Replaces Document Dated: September 4, 2007 This document is no longer a CPR. This document implements the requirements of Corporate Procedure ESH100.2.ELC.1, Manage Electrical Hazards. IMPORTANT NOTICE: A printed copy of this document may not be the document currently in effect. The official version is the online version located on the Sandia Restricted Network (SRN). Subject Matter Experts: Marc Williams and David Paoletta MN471004, Issue S Revision Date: June 9, 2011; Replaces Document Dated: April 29, 2008 Review Date: August 29, 2007 Administrative Changes: February 5, 2008, June 28, 2010, July 28, 2010, May 26, 2011, June 9, 2011, November 28, 2011, February 1, 2012

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Effect of Composition and Heat Treatment on MnBi Magnetic Materials...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Abstract: The metallic compound MnBi is a promising rare-earth-free permanent magnet material. Compare to other rare-earth-free candidates, MnBi stands out for its high...

262

On deformation twinning in a 17.5%Mn-TWIP steel: A physically...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

On deformation twinning in a 17.5%Mn-TWIP steel: A physically-based phenomenological model. On deformation twinning in a 17.5%Mn-TWIP steel: A physically-based phenomenological...

263

Pulsed laser deposition of Mn doped CdSe quantum dots for improved solar cell performance  

SciTech Connect (OSTI)

In this work, we demonstrate (1) a facile method to prepare Mn doped CdSe quantum dots (QDs) on Zn{sub 2}SnO{sub 4} photoanodes by pulsed laser deposition and (2) improved device performance of quantum dot sensitized solar cells of the Mn doped QDs (CdSe:Mn) compared to the undoped QDs (CdSe). The band diagram of photoanode Zn{sub 2}SnO{sub 4} and sensitizer CdSe:Mn QD is proposed based on the incident-photon-to-electron conversion efficiency (IPCE) data. Mn-modified band structure leads to absorption at longer wavelengths than the undoped CdSe QDs, which is due to the exchange splitting of the CdSe:Mn conduction band by the Mn dopant. Three-fold increase in the IPCE efficiency has also been observed for the Mn doped samples.

Dai, Qilin; Wang, Wenyong, E-mail: wwang5@uwyo.edu, E-mail: jtang2@uwyo.edu; Tang, Jinke, E-mail: wwang5@uwyo.edu, E-mail: jtang2@uwyo.edu [Department of Physics and Astronomy, University of Wyoming, Laramie, Wyoming 82071 (United States); Sabio, Erwin M. [Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071 (United States)

2014-05-05T23:59:59.000Z

264

Mn12-acetate thin film patterns and their interaction with superconductors  

E-Print Network [OSTI]

Mn12-acetate single-molecule magnets (SMMs) are nano-scale magnets showing a strong magnetic anisotropy, slow relaxation and stepwise magnetic hysteresis curves. Possible applications of Mn12-acetate, e.g. for ultra high density magnetic information...

Kim, Kyongwan

2009-05-15T23:59:59.000Z

265

Synthesis, structural and photocatalytic studies of Mn-doped CdS nanoparticles  

Science Journals Connector (OSTI)

Mn-doped CdS nanoparticles (Cd1?x Mn x S; where x...= 0.00–0.10) were synthesized by a chemical precipitation method. The synthesized products were characterized ...

Ruby Chauhan; Ashavani Kumar; Ram Pal Chaudhary

2013-02-01T23:59:59.000Z

266

LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon...  

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LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion Battery Cathode. LiMnPO4 Nanoplate Grown via Solid-State Reaction in Molten Hydrocarbon for Li-ion...

267

Engineering the magnetic properties of the Mn13 cluster by doping  

E-Print Network [OSTI]

With a goal to produce a giant magnetic moment in a Mn13 cluster that will be useful for practical applications, we have considered the structure and magnetic properties of a pure Mn13 cluster and substitutionally doped ...

Datta, Soumendu

268

Geometric and Electronic Structures of Tc and Mn Clusters by Density Functional Calculations  

Science Journals Connector (OSTI)

The geometric structures of Tc2-Tc5 and Mn2-Mn8 clusters were optimized by the Amsterdam density functional method. The trimeric, tetrameric, and pentameric Tc clusters exhibit the equilibrium structures of isosc...

R. Sekine; R. Kondo; T. Yamamoto; J. Onoe

2003-05-01T23:59:59.000Z

269

X-ray absorption study of the electronic structure of Mn-doped amorphous Si  

E-Print Network [OSTI]

X-ray absorption study of the electronic structure of Mn-?x ) is studied by X-ray absorption spectroscopy at the Mn Land featureless L 3,2 absorption peaks, corresponding to an

Zeng, Li

2008-01-01T23:59:59.000Z

270

Building of a Novel Mn12 Single Molecule Magnet by Assembly of...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic Triangles Building of a Novel Mn12 Single Molecule Magnet by Assembly of Anisotropic Triangles Print...

271

ALS in the News  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

feed-image feed-image Digg: ALSBerkeleyLab Facebook Page: 208064938929 Flickr: advancedlightsource Twitter: ALSBerkeleyLab YouTube: AdvancedLightSource Home About the ALS ALS in the News ALS in the News Roman Seawater Concrete Holds the Secret to Cutting Carbon Emissions Print Tuesday, 04 June 2013 00:00 An international team led by Paulo Monteiro of the Advanced Light Source and UC Berkeley has analyzed samples of Roman concrete from harbor installations that have survived 2,000 years of chemical attack and wave action, "one of the most durable construction materials on the planet," says UC Berkeley's Marie Jackson, a leading member of the team. Says Monteiro, "It's not that modern concrete isn't good, but manufacturing Portland cement accounts for seven percent of the carbon dioxide that industry puts into the air." The carbon footprint of Roman concrete, made from lime, volcanic ash, and seawater, is much smaller.

272

ALS Beamlines Directory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Beamlines Directory Beamlines Directory ALS Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

273

Low-temperature magnetization of (Ga,Mn) As semiconductors  

E-Print Network [OSTI]

der Laan,8 C. T. Foxon,2 and B. L. Gallagher2 1Institute of Physics ASCR, Cukrovarnick? 10, 162 53 Praha 6, Czech Republic 2School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom 3Institute of Physics ASCR, Na... is organized as follows. In Sec. II we identify the key physical considerations related to ground-state mag- netization of #1;Ga,Mn#2;As ferromagnets by focusing first on a single Mn#1;d5+hole#2; complex and approximating the total magnetization...

Jungwirth, T.; Masek, J.; Wang, KY; Edmonds, KW; Sawicki, M.; Polini, M.; Sinova, Jairo; MacDonald, AH; Campion, RP; Zhao, LX; Farley, NRS; Johal, TK; van der Laan, G.; Foxon, CT; Gallagher, BL.

2006-01-01T23:59:59.000Z

274

ALS superbend magnet system  

SciTech Connect (OSTI)

The Lawrence Berkeley National Laboratory is preparing to upgrade the Advanced Light Source (ALS) with three superconducting dipoles (Superbends). In this paper we present the final magnet system design which incorporates R&D test results and addresses the ALS operational concerns of alignment, availability, and economy. The design incorporates conduction-cooled Nb-Ti windings and HTS current leads, epoxy-glass suspension straps, and a Gifford-McMahon cryocooler to supply steady state refrigeration. We also present the current status of fabrication and testing.

Zbasnik, J.; Wang, S.T.; Chen, J.Y.; DeVries, G.J.; DeMarco, R.; Fahmie, M.; Geyer, A.; Green, M.A.; Harkins, J.; Henderson, T.; Hinkson, J.; Hoyer, E.H.; Krupnick, J.; Marks, S.; Ottens, F.; Paterson, J.A.; Pipersky, P.; Portmann, G.; Robin, D.A.; Schlueter, R.D.; Steier, C.; Taylor, C.E.; Wahrer, R.

2000-09-15T23:59:59.000Z

275

Electron transfer at the contact between Al electrode and gold nanoparticles of polymer: Nanoparticle resistive switching devices studied by alternating current impedance spectroscopy  

SciTech Connect (OSTI)

Electron transfer at the contact between an Al electrode and Au nanoparticles of polymer:nanoparticle devices is studied by ac impedance spectroscopy. The devices have a polystyrene layer embedded with Au nanoparticles capped with conjugated 2-naphthalenethiol sandwiched between Al and MoO{sub 3}/Al electrodes, and they exhibit electrode-sensitive resistive switches. The devices in the pristine or high resistance state have high capacitance. The capacitance decreases after the devices switch to a low resistance state by a voltage scan. The change in the capacitance is attributed to the voltage-induced change on the electronic structure of the contact between the Al electrode and Au nanoparticles.

Ouyang, Jianyong, E-mail: mseoj@nus.edu.sg [Department of Materials Science and Engineering, National University of Singapore, Singapore 117576 (Singapore)] [Department of Materials Science and Engineering, National University of Singapore, Singapore 117576 (Singapore)

2013-12-02T23:59:59.000Z

276

Structure and luminescence of annealed nanoparticles of ZnS:Mn A. D. Dinsmore,a)  

E-Print Network [OSTI]

,10 Y2O3:Eu,11­13 LaPO4:Eu, Ce and Tb,14 CdS:Mn,15 CdSe:Mn,16 ZnS:Cu,17 ZnS:Tb,18 and ZnS:Mn,19­32 which temperatures5,6 and pressures.7,8 In addition to their funda- mental interest, doped semiconductor describe experimental studies of the structure and luminescence of nanoparticles of ZnS doped with Mn

Dinsmore, Tony

277

Investigation of the optical properties of MoS{sub 2} thin films using spectroscopic ellipsometry  

SciTech Connect (OSTI)

Spectroscopic ellipsometry (SE) characterization of layered transition metal dichalcogenide (TMD) thin films grown by vapor phase sulfurization is reported. By developing an optical dispersion model, the extinction coefficient and refractive index, as well as the thickness of molybdenum disulfide (MoS{sub 2}) films, were extracted. In addition, the optical band gap was obtained from SE and showed a clear dependence on the MoS{sub 2} film thickness, with thinner films having a larger band gap energy. These results are consistent with theory and observations made on MoS{sub 2} flakes prepared by exfoliation, showing the viability of vapor phase derived TMDs for optical applications.

Yim, Chanyoung; O'Brien, Maria; Winters, Sinéad [School of Chemistry, Trinity College Dublin, Dublin 2 (Ireland); Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); McEvoy, Niall [Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); Mirza, Inam; Lunney, James G. [Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); School of Physics, Trinity College Dublin, Dublin 2 (Ireland); Duesberg, Georg S., E-mail: duesberg@tcd.ie [School of Chemistry, Trinity College Dublin, Dublin 2 (Ireland); Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2 (Ireland); Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, Dublin 2 (Ireland)

2014-03-10T23:59:59.000Z

278

Novel frustrated magnetic lattice based on triangular [Mn3(m3-F)] clusters with tetrazole ligands{  

E-Print Network [OSTI]

Novel frustrated magnetic lattice based on triangular [Mn3(m3-F)] clusters with tetrazole ligands701840a Unprecedented [MnII 3(m3-F)(m-N­N)3] triangular clusters with tetrazole ligands are linked by Mn the tetrazolate ligands, which possess additional N-donor sites for network formation. To our knowledge, [M3(m3-X

Gao, Song

279

MnO nanorods on graphene as an anode material for high capacity lithium ion batteries  

Science Journals Connector (OSTI)

The MnO/graphene hybrid nanocomposites were prepared by an in...2 nanorods were attached on the graphene oxides (GOs) to form the MnO2.../GO nanocomposites, which were reduced to the MnO/graphene hybrid under arg...

Tonghua Wu; Feiyue Tu; Suqin Liu; Shuxin Zhuang…

2014-02-01T23:59:59.000Z

280

On the role of Mn(IV) vacancies in the photoreductive dissolution of hexagonal birnessite  

SciTech Connect (OSTI)

Photoreductive dissolution of layer type Mn(IV) oxides (birnessite) under sunlight illumination to form soluble Mn(II) has been observed in both field and laboratory settings, leading to a consensus that this process is a key driver of the biogeochemical cycling of Mn in the euphotic zones of marine and freshwater ecosystems. However, the underlying mechanisms for the process remain unknown, although they have been linked to the semiconducting characteristics of hexagonal birnessite, the ubiquitous Mn(IV) oxide produced mainly by bacterial oxidation of soluble Mn(II). One of the universal properties of this biogenic mineral is the presence of Mn(IV) vacancies, long-identified as strong adsorption sites for metal cations. In this paper, the possible role of Mn vacancies in photoreductive dissolution is investigated theoretically using quantum mechanical calculations based on spin-polarized density functional theory (DFT). Our DFT study demonstrates unequivocally that Mn vacancies significantly reduce the band-gap energy for hexagonal birnessite relative to a hypothetical vacancy-free MnO{sub 2} and thus would increase the concentration of photo-induced electrons available for Mn(IV) reduction upon illumination of the mineral by sunlight. Calculations of the charge distribution in the presence of vacancies, although not fully conclusive, show a clear separation of photo-induced electrons and holes, implying a slow recombination of these charge-carriers that facilitates the two-electron reduction of Mn(IV) to Mn(II).

Kwon, K.D.; Refson, K.; Sposito, G.

2009-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Materials Research for Environment and Energy Hydrogen Embrittlement in Fe-Mn-C  

E-Print Network [OSTI]

Materials Research for Environment and Energy - 1 - Hydrogen Embrittlement in Fe-Mn-C High Strength. Dierk RAABE (MPIE) #12;Materials Research for Environment and Energy - 5 - High Mn austenitic steels twinning. #12;Materials Research for Environment and Energy - 9 - However, high Mn steels undergo premature

Cambridge, University of

282

Brambilla, et al. Reply  

E-Print Network [OSTI]

Brambilla, et al. Reply: van Megen and Williams (vMW) question our recent claim that dense colloidal hard spheres enter at large volume fraction \\phi a dynamical regime not observed in earlier work and not described by the mode-coupling theory (MCT) of the glass transition.

Giovanni Brambilla; Djamel El Masri; Matteo Pierno; Ludovic Berthier; Luca Cipelletti; George Petekidis; Andrew B. Schofield

2010-08-27T23:59:59.000Z

283

Cationic disorder and Mn{sup 3+}/Mn{sup 4+} charge ordering in the B? and B? sites of Ca{sub 3}Mn{sub 2}NbO{sub 9} perovskite: a comparison with Ca{sub 3}Mn{sub 2}WO{sub 9}  

SciTech Connect (OSTI)

We describe the preparation, crystal structure determination, magnetic and transport properties of two novel Mn-containing perovskites, with a different electronic configuration for Mn atoms located in B site. Ca{sub 3}Mn{sup 3+}{sub 2}WO{sub 9} and Ca{sub 3}Mn{sup 3+/4+}{sub 2}NbO{sub 9} were synthesized by standard ceramic procedures; the crystallographic structure was studied from X-ray powder diffraction (XRPD) and neutron powder diffraction (NPD). Both phases exhibit a monoclinic symmetry (S.G.: P2{sub 1}/n); Ca{sub 3}Mn{sub 2}WO{sub 9} presents a long-range ordering over the B sites, whereas Ca{sub 3}Mn{sub 2}NbO{sub 9} is strongly disordered. By “in-situ” NPD, the temperature evolution of the structure study presents an interesting evolution in the octahedral size (?Mn–O?) for Ca{sub 3}Mn{sub 2}NbO{sub 9}, driven by a charge ordering effect between Mn{sup 3+} and Mn{sup 4+} atoms, related to the anomaly observed in the transport measurements at T?160 K. Both materials present a magnetic order below T{sub C}=30 K and 40 K for W and Nb materials, respectively. The magneto-transport measurements display non-negligible magnetoresistance properties in the paramagnetic regime. - Graphical abstract: Comparison between the octahedron size and the magnetic behaviour for Ca{sub 3}Mn{sub 2}NbO{sub 9} in the temperature region where the charge and magnetic order occur. Display Omitted - Highlights: • Two novel Mn-containing double perovskites were obtained by solid-state reactions. • Both double perovskites are monoclinic (P2{sub 1}/n) determined by XRPD and NPD. • Ca{sub 3}Mn{sub 2}WO{sub 9} contains Mn{sup 3+} while Ca{sub 3}Mn{sub 2}NbO{sub 9} includes mixed-valence cations Mn{sup 3+}/Mn{sup 4+}. • Ca{sub 3}Mn{sub 2}NbO{sub 9} presents a charge-ordering effect between Mn{sup 3+} and Mn{sup 4+} evidenced by NPD. • The magnetic and transport studies evidenced the charge ordering in Ca{sub 3}Mn{sub 2}NbO{sub 9}.

López, C.A., E-mail: calopez@unsl.edu.ar [INTEQUI-Área de Química General e Inorgánica “Dr. G. F. Puelles”, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis (Argentina); Centro Atómico Bariloche, Comisión Nacional de Energía Atómica and Instituto Balseiro, Universidad Nacional de Cuyo, 8400S.C. de Bariloche, Río Negro (Argentina); Saleta, M.E. [Centro Atómico Bariloche, Comisión Nacional de Energía Atómica and Instituto Balseiro, Universidad Nacional de Cuyo, 8400S.C. de Bariloche, Río Negro (Argentina); Pedregosa, J.C. [INTEQUI-Área de Química General e Inorgánica “Dr. G. F. Puelles”, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis (Argentina); Sánchez, R.D. [Centro Atómico Bariloche, Comisión Nacional de Energía Atómica and Instituto Balseiro, Universidad Nacional de Cuyo, 8400S.C. de Bariloche, Río Negro (Argentina); Alonso, J.A. [Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid (Spain); and others

2014-02-15T23:59:59.000Z

284

Density functional theory investigation of the electronic structure and thermoelectric properties of layered MoS{sub 2}, MoSe{sub 2} and their mixed-layer compound  

SciTech Connect (OSTI)

First principles density functional theory calculations were carried out for the 2H-MoQ{sub 2} (Q=S and Se) and their hypothetical mixed-layer compound. Due to the different electronegativities of S and Se atoms on MoQ{sub 2}, the band gap size could be adjusted in mixed-layer compound MoS{sub 2}/MoSe{sub 2}. Also, the indirect band gap in pure MoQ{sub 2} compounds is changed to the pseudo direct band gap in mixed-layer MoS{sub 2}/MoSe{sub 2} which is similar to the monolayer compound. The layer mixing enhances the thermoelectric properties because of the increased density of states around the Fermi level and the decreased band gap size. Therefore, we suggest that this layer mixing approach should be regarded as a useful way to modulate their electronic structures and to improve their thermoelectric properties. -- Graphical abstract: On the basis of density functional calculations we predict that the mixed-layer compounds 2H-MoS{sub 2}/2H-MoSe{sub 2}, in which two different layers 2H-MoS{sub 2} and 2H-MoSe{sub 2}, have enhanced thermoelectric properties because of the increased density of states around the Fermi level and the decreased band gap size. Highlights: • We explored a way of improving TE properties of 2H-MoQ{sub 2} on DFT methods. • The mixed-layer compounds MoS{sub 2}/MoSe{sub 2} have enhanced thermoelectric properties. • This is caused by modulated electronic structure of mixed layer compound. • Layer mixing approach should be regarded as a useful way to improve TE properties.

Lee, Changhoon; Hong, Jisook [Department of Chemistry, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Lee, Wang Ro [Faculty of Liberal Education, Chonbuk National University, Jeonju, Jeonbuk 561-756 (Korea, Republic of); Kim, Dae Yeon [Agency for Defense Development (ADD), Chinhae, Kyungnam 645-600 (Korea, Republic of); Shim, Ji Hoon, E-mail: jhshim@postech.ac.kr [Department of Chemistry, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Divisions of Advanced Nuclear Engineering, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of)

2014-03-15T23:59:59.000Z

285

Eine analytische Brennstoffzelle als Alkoholsensor  

Science Journals Connector (OSTI)

Es wird eine analytische Brennstoffzelle zur quantitativen Bestimmung von Alkoholen beschrieben. Als...

H. Huck

286

Smith et al Supporting Information  

E-Print Network [OSTI]

Smith et al 1 Supporting Information for Smith et al. 2006, PLoS Computational Biology 2:e161-hyperpallium apicale; HF-hippocampal formation, and M-mesopallium. #12;Smith et al 2 FigureS2,nolinkswerefoundbetweenelectrodesindifferentbirds,andnolinkswerefoundintothesoundstimulusvariable. CombinedAnalysisofAllBirds'ElectrodesPlusSound #12;Smith et al 3 Analysis of Data from Subsections

Jarvis, Erich D.

287

Electronic interactions between gold films and mn12-acetate  

E-Print Network [OSTI]

the presence of a surface layer of Mn12–acetate, have been performed using a dilution refrigerator. Quantitative fits to the data using the predictions of weak localization theory were performed using a least-squares fit method in order to determine...

Means, Joel Lewis

2009-05-15T23:59:59.000Z

288

Crystal structure of LaMnO[sub 3+[delta  

SciTech Connect (OSTI)

Poly(acrylic acid) (PAA) was used to make a gel from an aqueous solution of lanthanum and manganese nitrates. In the concentration range 3 [times] 10[sup [minus]2] to 5 [times] 10[sup [minus]2] M of PAA, the single phase of perovskite-type LaMnO[sub 3+[delta

Taguchi, Hideki; Yoshioka, Hideaki; Matsuda, Daisuke; Nagao, Mahiko (Okayama Univ. (Japan))

1993-06-01T23:59:59.000Z

289

Aboveground test of an advanced Li$_2$MoO$_4$ scintillating bolometer to search for neutrinoless double beta decay of $^{100}$Mo  

E-Print Network [OSTI]

Large lithium molybdate (Li$_2$MoO$_4$) crystal boules were produced by using the low thermal gradient Czochralski growth technique from deeply purified molybdenum. A small sample from one of the boules was preliminary characterized in terms of X-ray-induced and thermally-excited luminescence. A large cylindrical crystalline element (with a size of $\\oslash 40\\times40$ mm) was used to fabricate a scintillating bolometer, which was operated aboveground at $\\sim 15$ mK by using a pulse-tube cryostat housing a high-power dilution refrigerator. The excellent detector performance in terms of energy resolution and $\\alpha$ background suppression along with preliminary positive indications on the radiopurity of this material show the potentiality of Li$_2$MoO$_4$ scintillating bolometers for low-counting experiment to search for neutrinoless double beta decay of $^{100}$Mo.

T. B. Bekker; N. Coron; F. A. Danevich; V. Ya. Degoda; A. Giuliani; V. D. Grigorieva; N. V. Ivannikova; M. Mancuso; P. de Marcillac; I. M. Moroz; C. Nones; E. Olivieri; G. Pessina; D. V. Poda; V. N. Shlegel; V. I. Tretyak; M. Velazquez

2014-10-25T23:59:59.000Z

290

Aboveground test of an advanced Li$_2$MoO$_4$ scintillating bolometer to search for neutrinoless double beta decay of $^{100}$Mo  

E-Print Network [OSTI]

Large lithium molybdate (Li$_2$MoO$_4$) crystal boules were produced by using the low thermal gradient Czochralski growth technique from deeply purified molybdenum. A small sample from one of the boules was preliminary characterized in terms of X-ray-induced and thermally-excited luminescence. A large cylindrical crystalline element (with a size of $\\oslash 40\\times40$ mm) was used to fabricate a scintillating bolometer, which was operated aboveground at $\\sim 15$ mK by using a pulse-tube cryostat housing a high-power dilution refrigerator. The excellent detector performance in terms of energy resolution and $\\alpha$ background suppression along with preliminary positive indications on the radiopurity of this material show the potentiality of Li$_2$MoO$_4$ scintillating bolometers for low-counting experiment to search for neutrinoless double beta decay of $^{100}$Mo.

T. B. Bekker; N. Coron; F. A. Danevich; V. Ya. Degoda; A. Giuliani; V. D. Grigorieva; N. V. Ivannikova; M. Mancuso; P. de Marcillac; I. M. Moroz; C. Nones; E. Olivieri; G. Pessina; D. V. Poda; V. N. Shlegel; V. I. Tretyak; M. Velazquez

2014-12-17T23:59:59.000Z

291

First bolometric measurement of the two neutrino double beta decay of $^{100}$Mo with a ZnMoO$_4$ crystals array  

E-Print Network [OSTI]

The large statistics collected during the operation of a ZnMoO$_4$ array, for a total exposure of 1.3 kg $\\cdot$ day of $^{100}$Mo, allowed the first bolometric observation of the two neutrino double beta decay of $^{100}$Mo. The observed spectrum of each crystal was reconstructed taking into account the different background contributions due to environmental radioactivity and internal contamination. The analysis of coincidences between the crystals allowed the assignment of constraints to the intensity of the different background sources, resulting in a reconstruction of the measured spectrum down to an energy of $\\sim$300 keV. The half-life extracted from the data is T$_{1/2}^{2\

L. Cardani; L. Gironi; N. Ferreiro Iachellini; L. Pattavina; J. W. Beeman; F. Bellini; N. Casali; O. Cremonesi; I. Dafinei; S. Di Domizio; F. Ferroni; E. Galashov; C. Gotti; S. Nagorny; F. Orio; G. Pessina; G. Piperno; S. Pirro; E. Previtali; C. Rusconi; C. Tomei; M. Vignati

2014-04-30T23:59:59.000Z

292

Aboveground test of an advanced Li$_2$MoO$_4$ scintillating bolometer to search for neutrinoless double beta decay of $^{100}$Mo  

E-Print Network [OSTI]

Large lithium molybdate (Li$_2$MoO$_4$) crystal boules were produced by using the low thermal gradient Czochralski growth technique from deeply purified molybdenum. A small sample from one of the boules was preliminary characterized in terms of X-ray-induced and thermally-excited luminescence. A large cylindrical crystalline element (with a size of $\\oslash 40\\times40$ mm) was used to fabricate a scintillating bolometer, which was operated aboveground at $\\sim 15$ mK by using a pulse-tube cryostat housing a high-power dilution refrigerator. The excellent detector performance in terms of energy resolution and $\\alpha$ background suppression along with preliminary positive indications on the radiopurity of this material show the potentiality of Li$_2$MoO$_4$ scintillating bolometers for low-counting experiment to search for neutrinoless double beta decay of $^{100}$Mo.

Bekker, T B; Danevich, F A; Degoda, V Ya; Giuliani, A; Grigorieva, V D; Ivannikova, N V; Mancuso, M; de Marcillac, P; Moroz, I M; Nones, C; Olivieri, E; Pessina, G; Poda, D V; Shlegel, V N; Tretyak, V I; Velazquez, M

2014-01-01T23:59:59.000Z

293

Detailed characterization of Mo/Au TES microcalorimeters  

Science Journals Connector (OSTI)

We are optimizing Mo/Au transition-edge-sensor (TES) calorimeters to meet the specifications of NASA’s Constellation-X mission. Our calorimeters have already demonstrated very good energy resolution of X rays (2.4 eV at 1.5 keV). We wish to further improve the energy resolution by reducing excess noise in the calorimeters. Development of a detailed model and understanding of the noise is instrumental to reaching this goal. Towards that end we employ a linear model that describes the response of a calorimeter to signal and various sources of noise. The model is based on detailed measurements of the parameters that affect the calorimeter’s performance such as current-voltage characteristics of the TES thermal conductance of our silicon-nitride membranes and inductance in the electronic circuit used to bias the TES. We determine the sharpness of the superconducting phase transition by fitting the model to the measured responsivity of the calorimeter. The model relates sources of noise such as phonon noise Johnson noise and hypothetical sources of excess noise to measurements of noise in the TES. Based on this analysis we find that the excess noise is consistent with frequency-independent voltage noise in the TES

Mark A. Lindeman; Regis P. Brekosky; Enectali Figueroa-Feliciano; Fred M. Finkbeiner; Mary Li; Caroline K. Stahle; Carl M. Stahle; Nilesh Tralshawala

2002-01-01T23:59:59.000Z

294

Electrochemical Testing of Ni-Cr-Mo-Gd Alloys  

SciTech Connect (OSTI)

The waste package site recommendation design specified a boron-containing stainless steel, Neutronit 976/978, for fabrication of the internal baskets that will be used as a corrosion-resistant neutron-absorbing material. Recent corrosion test results gave higher-than-expected corrosion rates for this material. The material callout for these components has been changed to a Ni-Cr-Mo-Gd alloy (ASTM-B 932-04, UNS N06464) that is being developed at the Idaho National Laboratory. This report discusses the results of initial corrosion testing of this material in simulated in-package environments that could contact the fuel baskets after breach of the waste package outer barrier. The corrosion test matrix was executed using the potentiodynamic and potentiostatic electrochemical test techniques. The alloy performance shows low rates of general corrosion after initial removal of a gadolinium-rich second phase that intersects the surface. The high halide-containing test solutions exhibited greater tendencies toward initiation of crevice corrosion.

T. E. Lister; R. E. Mizia; H. Tian

2005-10-01T23:59:59.000Z

295

Ring size and strain as a control of reaction selectivity: ethylene sulfide on Mo(110)  

SciTech Connect (OSTI)

The adsorption and reaction of sulfur-containing organic on single-crystal transition-metal surfaces form a subject of current to the authors and others. The primary focus of their work is an investigation of how thermodynamic properties of adsorbate molecules affect the mechanism(s) by which they react. To this end, they have studied the reactions of two saturated cyclic sulfides-trimethylene sulfide (c-C/sub 3/H/sub 6/S) and tetrahydrothiophene (c-C/sub 4/H/sub 8/S)--on Mo(110). On the basis of these studies they proposed that ring strain in the cyclic sulfide controls reaction selectivity on Mo(110). This work concerns the reactions of a third cyclic sulfide, ethylene sulfide (c-C/sub 2/H/sub 4/S), on Mo(110). The results presented here demonstrate that ring size as well as ring strain determines the reaction selectivity of cyclic sulfides on Mo(110).

Roberts, J.T.; Friend, C.M.

1987-12-09T23:59:59.000Z

296

Growth and crystal structure of binary molybdate CsFe(MoO{sub 4}){sub 2}  

SciTech Connect (OSTI)

CsFe(MoO{sub 4}){sub 2} single crystals have been grown by solution-melt crystallization with a charge-to-solvent ratio of 1: 3 (with Cs{sub 2}Mo{sub 3}O{sub 10} used as a solvent). The crystal structure of this compound has been refined by X-ray diffraction (X8 APEX automatic diffractometer, MoK{sub {alpha}} radiation, 356 F(hkl), R = 0.0178). The trigonal unit cell has the following parameters: a = b = 5.6051(2) A, c = 8.0118(4) A, V = 217.985(15) A{sup 3}, Z = 1, {rho}{sub calc} = 3.875 g/cm{sup 3}, and sp. gr. P3-barm1. The structure is composed of alternating layers of FeO{sub 6} octahedra (with MoO{sub 4} tetrahedra attached by sharing vertices) and CsO{sub 12} icosahedra.

Bazarov, B. G., E-mail: jbaz@binm.bscnet.ru; Namsaraeva, T. V. [Russian Academy of Sciences, Baikal Institute of Nature Management, Siberian Branch (Russian Federation); Klevtsova, R. F., E-mail: klev@che.nsk.su; Anshits, A. G. [Russian Academy of Sciences, Institute of Inorganic Chemistry, Siberian Branch (Russian Federation); Vereshchagina, T. A. [Russian Academy of Sciences, Institute of Chemistry and Chemical Technology, Siberian Branch (Russian Federation); Glinskaya, L. A. [Russian Academy of Sciences, Institute of Inorganic Chemistry, Siberian Branch (Russian Federation); Fedorov, K. N.; Bazarova, Zh. G. [Russian Academy of Sciences, Baikal Institute of Nature Management, Siberian Branch (Russian Federation)

2010-07-15T23:59:59.000Z

297

Cr17Ni14Mo3 Powder Laser Cladding on 45Steel Substrate  

Science Journals Connector (OSTI)

The relationship between laser power, scan-rate, thickness of pre-placed powder particles, overlap, preheating and laser cladding coating quality was analyzed. Laser cladding of Cr17Ni14Mo3 stainless steel powder...

Sun Huilai; Lin Shuzhong; Zhao Fangfang; Qi Xiangyang

2010-01-01T23:59:59.000Z

298

Electronic structure of alkaline metal hydrides according to MO LCAO-SCF-CNDO cluster calculations  

Science Journals Connector (OSTI)

This paper presents the results of a quantum chemical study of compounds MH (M = Li, Na, K, Rb, and Cs) in a cluster approximation. The calculations were performed by the MO LCAO-SCF- ... model systems of high-te...

E. A. Zharikova; A. I. Ermakov; R. P. Ozerov

299

AB INITIO Modeling of Thermomechanical Properties of Mo-Based Alloys for Fossil Energy Conversion  

SciTech Connect (OSTI)

In this final scientific/technical report covering the period of 3.5 years started on July 1, 2011, we report the accomplishments on the study of thermo-mechanical properties of Mo-based intermetallic compounds under NETL support. These include computational method development, physical properties investigation of Mo-based compounds and alloys. The main focus is on the mechanical and thermo mechanical properties at high temperature since these are the most crucial properties for their potential applications. In particular, recent development of applying ab initio molecular dynamic (AIMD) simulations to the T1 (Mo{sub 5}Si{sub 3}) and T2 (Mo{sub 5}SiB{sub 2}) phases are highlighted for alloy design in further improving their properties.

Ching, Wai-Yim

2013-12-31T23:59:59.000Z

300

Interdiffusion in NiMnSb/V/NiMnSb: X-ray and neutron reflectivity investigation of ion beam sputtered trilayer systems  

SciTech Connect (OSTI)

The new trilayer system NiMnSb/V/NiMnSb on MgO(001) was investigated by means of vibrating sample magnetometry (VSM), x-ray, and neutron reflectivity. VSM revealed a coercive field H{sub c}=23 Oe and a hysteresis loop similar to that of an uncoupled ferromagnet. The x-ray and neutron reflectivity data proved that interface roughnesses of 10 {Angstrom} are present. A detailed analysis yielded significant interdiffusion at the NiMnSb/V interfaces which is one possible explanation for the weak magnetoresistance effect measured in similar NiMnSb-based multilayer systems. {copyright} {ital 1999 American Institute of Physics.}

Schlomka, J.; Tolan, M.; Press, W. [Institut fuer Experimentelle und Angewandte Physik, Christian-Albrechts-Universitaet zu Kiel, 24098 Leibnizstrasse 17-19, Kiel (Germany)] [Institut fuer Experimentelle und Angewandte Physik, Christian-Albrechts-Universitaet zu Kiel, 24098 Leibnizstrasse 17-19, Kiel (Germany); Fitzsimmons, M.R. [Manuel Lujan, Jr. Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Manuel Lujan, Jr. Neutron Scattering Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Siebrecht, R. [Institut Laue-Langevin, 38042 Grenoble, Cedex 9 (France)] [Institut Laue-Langevin, 38042 Grenoble, Cedex 9 (France); Schubert, D.W. [GKSS Forschungszentrum, 21502 Geesthacht (Germany)] [GKSS Forschungszentrum, 21502 Geesthacht (Germany); Simon, P. [Max Planck Institut fuer Polymerforschung, 55021 Mainz (Germany)] [Max Planck Institut fuer Polymerforschung, 55021 Mainz (Germany)

1999-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Structure model for the () phase in Al-Cr-Si alloys deduced from the phase by the strong-reflections approach  

Science Journals Connector (OSTI)

Two closely related quasicrystal approximants are expected to have similar crystallographic structure-factor amplitudes and phases for the strong reflections so the structure of an unknown quasicrystal approximant can be solved from a related known quasicrystal approximant. This strong-reflections approach is applied to the new ()-AlCrSi phase and a structure model of () is deduced from the structure of the related -Al4Mn phase.

Zhang, H.

2006-01-17T23:59:59.000Z

302

ALS Beamlines Directory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Beamlines Directory Print Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

303

ALS User Meeting Archives  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

User Meeting Archives Print User Meeting Archives Print Past User Meeting Agendas, Workshops, and Awards Year Agenda Workshops David A. Shirley (Science) Klaus Halbach (Instrumentation) Tim Renner (Service) 2012 2012 User Meeting Agenda 2012 User Meeting Workshops 2012 ALS User Meeting Awards Carl Percival, Dudley Shallcross, Craig Taatjes and David Osborn (Sandia), for making the first direct measurements of the reactions of Criegee intermediates, and showing that their impact on tropospheric chemistry and climate may be substantially greater than previously assumed. 2012 ALS User Meeting Awards Jeff Dickert and Simon Morton of Berkeley Lab's Physical Biosciences Division for the invention and implementation of the Compact Variable Collimator (CVC), which has led to a dramatic increase in productivity of protein crystallography.

304

ALS Beamlines Directory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Beamlines Directory Print Beamlines Directory Print Beamlines, Parameters, Contact Information, and Schedules Download a high-resolution version of the ALS Beamclock. See Beamclock to view the ALS energy-related beamlines beamclock. Beamline Parameters Beamline and endstation technical information is available through the links below. Unless otherwise noted, all beamlines are currently operational. Individual beamline schedules are posted when available. Please contact the responsible beamline scientist for additional schedule information. When calling from off-site, all beamline (BL) phone numbers that begin with a "2" are preceded by 495- (i.e., 495-2014); all others are preceded by 486-. Beamline Number Source Technique/ Group Name Energy Range Beamline Contact Schedule/BL Phone

305

Mo{sub 5}Si{sub 3} single crystals: Physical properties and mechanical behavior  

SciTech Connect (OSTI)

The materials processing, physical properties and mechanical behavior of an ultra-high temperature structural silicide, Mo{sub 5}Si{sub 3}, have been studied. High purity single crystals of Mo{sub 5}Si{sub 3} have been synthesized by both optical floating zone and Czochralski methods. The thermal and elastic properties of the MO{sub 5}Si{sub 3} single crystals were experimentally measured. Results show that Mo{sub 5}Si{sub 3} has significant thermal expansion anisotropy along the a and c directions with {alpha}{sub c}/{alpha}{sub a} = 2.2. Single crystal elastic moduli of Mo{sub 5}Si{sub 3} indicate that it has less elastic anisotropy and lower shear moduli than transition metal disilicides. Tensile stresses of up to 1.8 GPa can develop at grain boundaries after cooling from the melting point due to the thermal expansion mismatch in Mo{sub 5}Si{sub 3}, causing grain boundary cracking during processing of polycrystals. Room temperature Vickers indentation tests on (100) and (001) planes have been performed with different indenter diagonal orientations. The orientation dependence of hardness and fracture toughness of Mo{sub 5}Si{sub 3} single crystals have been obtained. The corresponding deformation and fracture modes have been revealed by microscopy studies. A comparison of Mo{sub 5}Si{sub 3} with other high temperature structural silicides, e.g., C11{sub b} and C40 transition metal disilicides, is discussed.

Chu, F.; Thoma, D.J.; McClellan, K.J.; Peralta, P.

1998-12-01T23:59:59.000Z

306

Electrochemical oxidation of Mn(OH){sub 2} in alkaline media  

SciTech Connect (OSTI)

Redox transformations of the Mn(II)/Mn(III) and Mn(II)/Mn(IV) pairs have been studied by transient electrochemical, spectroelectrochemical, and impedance measurements in alkaline solutions at a manganese electrode. The Mn(0)/Mn(II) and Mn(II)/Mn(III) pairs, which have not been clearly identified hitherto in the literature, have been observed using these techniques. A species observed at 285 nm during oxidation of the Mn(OH){sub 2}-covered manganese electrode was assigned to MnOOH. This species eventually led to passive films whose major component is MnO{sub 2} absorbing at about 400 nm. An accumulation of the passive films was observed at longer electrolysis times. Electrochemical impedance measurements were used to construct a Tafel plot for the manganese oxidation. The polarization resistance reached a minimum at about + 0.17 V vs Ag{vert_bar}AgCl (saturated KCl) without oxygen evolution. Some kinetic information including resistance-capacitance time constants for the oxidation reaction and an exchange current density are also reported.

Cha, D.K. [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Chemistry; Park, S.M. [Pohang Univ. of Science and Technology (Korea, Republic of)

1997-08-01T23:59:59.000Z

307

LICENSE HISTORY MO.8 Petrolite Corporation, St. Louis  

Office of Legacy Management (LM)

30-051175, 081379. Loose H-3, I-131, P-32. l 24-10452-1, 103064. K66 R. R. Annand et al Multiple. . 70-621, 12-15-61, SNM license for 0.5 kg. of U-235, 93% enriched as a fuel...

308

MoS{sub 2} nanotube exfoliation as new synthesis pathway to molybdenum blue  

SciTech Connect (OSTI)

Graphical abstract: . Display Omitted Highlights: ? New synthesis approach to obtaining molybdenum blue via exfoliated MoS{sub 2} nanotubes. ? Material is prone to self assembly and is stable in high vacuum. ? Molecules are as small as 2 nm and their clusters are up to tens of nanometers. ? Change in absorption and oxidation states from the precursor MoS{sub 2}. -- Abstract: Molybdenum blue-type materials are usually obtained by partially reducing Mo{sup VI+} in acidic solutions, while in the presented method it is formed in ethanol solution of exfoliated MoS{sub 2} nanotubes, where the MoS{sub 2} flakes are the preferential location for their growth. Material was investigated by means of scanning electron and atomic force microscopy, showing the structure and self assembly, while also confirming that it is stable in high vacuum with molecules as small as 1.6 nm and the agglomerates of few tens of nanometres. The ultraviolet–visible and photoelectron spectrometry show the change in absorption properties and oxidation states from MoS{sub 2} structure to molybdenum blue, while the presence of sulphur suggests that this is a new type of molybdenum blue material.

Visic, B., E-mail: bojana.visic@ijs.si [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia); Gunde, M. Klanjsek [National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana (Slovenia)] [National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana (Slovenia); Kovac, J.; Iskra, I. [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)] [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia); Jelenc, J.; Remskar, M. [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia) [Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia); Centre of Excellence Namaste, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)

2013-02-15T23:59:59.000Z

309

Soft zone formation in dissimilar welds between two Cr-Mo steels  

SciTech Connect (OSTI)

Two dissimilar weldments between 9Cr-1Mo and 2.25Cr-1Mo ferritic steels have been characterized for their microstructural stability during various postweld heat treatments (PWHTs). The samples for the investigation were extracted from bead-on-plate weldments made by depositing 2.25Cr-1Mo weld metal on 9Cr-1Mo base plate and vice versa. Subsequent application of PWHT resulted in the formation of a soft zone in the low Cr ferritic steel weld or base plate. A carbide-rich hard zone, adjoining the soft zone, was also detected in the high Cr side of the weldment. Unmixed zones in the weld metal provided additional soft and hard zones in the weld metals. The migration of carbon from low-Cr steel to high-Cr steel, driven by the carbon activity gradient, has been shown to be responsible for the formation of soft and hard zones. A carbon activity diagram for 2.25Cr-1Mo/9Cr-1Mo weldments has been proposed to aid in the selection of welding consumables for reducing or preventing the soft zone formation.

Albert, S.K.; Gill, T.P.S.; Tyagi, A.K.; Mannan, S.L.; Rodriguez, P. [Indira Gandhi Centre for Atomic Research, Kalpakkam (India); Kulkarni, S.D. [Indian Inst. of Tech., Bombay (India)

1997-03-01T23:59:59.000Z

310

Synthesis of Nano-scaled -Al2O3 Particles by Combustion Spray Byungsei Jun1,a  

E-Print Network [OSTI]

University, University Park, PA 16802, USA. a bsjun@Kyungnam.ac.kr, b SJLee@Kyungnam.ac.kr, c messing@ems solution was prepared by dissolving aluminium nitrate (Al(NO3)3·9H2O, 99%, Aldrich Chem. Co. Inc., USA) as an oxidizer and carbohydrazide (CH6N4O, 97%, Acros Organics, New Jersey, USA) as a fuel with the mo

Messing, Gary L.

311

Optimization of chemical compositions in low-carbon Al-killed enamel steel produced by ultra-fast continuous annealing  

SciTech Connect (OSTI)

The influence of Mn,S and B contents on microstructural characteristics, mechanical properties and hydrogen trapping ability of low-carbon Al-killed enamel steel was investigated. The materials were produced and processed in a laboratory and the ultra-fast continuous annealing processing was performed using a continuous annealing simulator. It was found that increasing Mn,S contents in steel can improve its hydrogen trapping ability which is attributed by refined ferrite grains, more dispersed cementite and added MnS inclusions. Nevertheless, it deteriorates mechanical properties of steel sheet. Addition of trace boron results in both good mechanical properties and significantly improved hydrogen trapping ability. The boron combined with nitrogen segregating at grain boundaries, cementite and MnS inclusions, provides higher amount of attractive hydrogen trapping sites and raises the activation energy for hydrogen desorption from them. - Highlights: • We study microstructures and properties in low-carbon Al-killed enamel steel. • Hydrogen diffusion coefficients are measured to reflect fish-scale resistance. • Manganese improves hydrogen trapping ability but decrease deep-drawing ability. • Boron improves both hydrogen trapping ability and deep-drawing ability. • Both excellent mechanical properties and fish-scale resistance can be matched.

Dong, Futao, E-mail: dongft@sina.com [The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819 (China); Du, Linxiu; Liu, Xianghua [The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819 (China); Xue, Fei [College of Electrical Engineering, Hebei United University, Tangshan 063000 (China)

2013-10-15T23:59:59.000Z

312

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot  

E-Print Network [OSTI]

PHYSICAL REVIEW B 84, 205305 (2011) Spin-phonon coupling in single Mn-doped CdTe quantum dot C. L dynamics of a single Mn atom in a laser driven CdTe quantum dot is addressed theoretically. Recent of single Mn-doped CdTe dots, information about the quantum spin state of a single Mn atom is extracted from

Paris-Sud XI, Université de

313

Effect of Composition and Heat Treatment on MnBi Magnetic Materials  

SciTech Connect (OSTI)

The metallic compound MnBi is a promising rare-earth-free permanent magnet material. Compare to other rare-earth-free candidates, MnBi stands out for its high intrinsic coercivity (Hci) and its large positive temperature coefficient. Several groups have demonstrated that the Hci of MnBi compound in thin film or in powder form can exceed 12 kOe and 26 kOe at 300 K and 523 K, respectively. Such steep increase in Hci with increasing temperature is unique to MnBi. Consequently, MnBi is a highly sought-after hard phase for exchange coupling nanocomposite magnets. The reaction between Mn and Bi is peritectic, so Mn tends to precipitate out of the MnBi liquid during the solidification process. As result, the composition of the Mn-Bi alloy with the largest amount of the desired LTP (low temperature phase) MnBi and highest saturation magnetization will be over-stoichiometric and rich in Mn. The amount of additional Mn required to compensate the Mn precipitation depends on solidification rate: the faster the quench speed, the less Mn precipitates. Here we report a systematic study of the effect of composition and heat treatments on the phase contents and magnetic properties of Mn-Bi alloys. In this study, Mn-Bi alloys with 14 compositions were prepared using conventional metallurgical methods such as arc melting and vacuum heat treatment, and the obtained alloys were analyzed for compositions, crystal structures, phase content, and magnetic properties. The results show that the composition with 55 at.% Mn exhibits the highest LTP MnBi content and the highest magnetization. The sample with this composition shows >90 wt.% LTP MnBi content. Its measured saturation magnetization is 68 emu/g with 2.3 T applied field at 300 K; its coercivity is 13 kOe and its energy product is 12 MGOe at 300 K. A bulk magnet fabricated using this powder exhibits an energy product of 8.2 MGOe.

Cui, Jun; Choi, Jung-Pyung; Polikarpov, Evgueni; Bowden, Mark E.; Xie, Wei; Li, Guosheng; Nie, Zimin; Zarkevich, Nikolai; Kramer, Matthew J.; Johnson, Duane D.

2014-08-17T23:59:59.000Z

314

Effect of Composition on the Solidification Behavior of Several Ni-Cr-Mo and Fe-Ni-Cr-Mo Alloys  

E-Print Network [OSTI]

simulate the solidifi- cation behavior of dissimilar welds made between AL-6XN and Ni-base filler metals.[3 differential thermal analysis (DTA) samples and welded specimens. This explains the in- variance of the amount of eutectic constituent observed in the microstructure in the welded and DTA conditions. Multicomponent

DuPont, John N.

315

Electrodeposited Mn-Co Alloy Coating For SOFC Interconnects  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electrodeposited Electrodeposited Mn-Co Alloy Coating For SOFC Interconnects H. McCrabb * , T. Hall * , J. Wu # , H. Zhang # , X. Liu # , E.J. Taylor * * Faraday Technology Inc., 315 Huls Dr., Clayton, OH 45315, USA # West Virginia University, Dept. of Mechanical and Aerospace Eng.ESB, Morgantown, WV, 26506, USA Overall Objective Overall Objective Principal Investigator: Heather McCrabb, Company Name: Faraday Technology, Inc., Address: 315 Huls Drive, Clayton, OH 45315, Phone: 937-836-7749, E-mail: heathermccrabb@faradaytechnology.com, Company website: faradaytechnology.com Previous Work at WVU Results Develop an inexpensive manufacturing process for depositing (Mn,Co) 3 O 4 spinel coatings onto SOFC interconnects. Introduction The decrease in the SOFC operating temperatures from 1000°C to between 650 and 850°C has enabled the use of chromia-forming ferritic stainless steels as interconnects

316

Charge transport properties of CdMnTe radiation detectors  

SciTech Connect (OSTI)

Growth, fabrication and characterization of indium-doped cadmium manganese telluride (CdMnTe)radiation detectors have been described. Alpha-particle spectroscopy measurements and time resolved current transient measurements have yielded an average charge collection efficiency approaching 100 %. Spatially resolved charge collection efficiency maps have been produced for a range of detector bias voltages. Inhomogeneities in the charge transport of the CdMnTe crystals have been associated with chains of tellurium inclusions within the detector bulk. Further, it has been shown that the role of tellurium inclusions in degrading chargecollection is reduced with increasing values of bias voltage. The electron transit time was determined from time of flight measurements. From the dependence of drift velocity on applied electric field the electron mobility was found to be n = (718 55) cm2/Vs at room temperature.

Kim K.; Rafiel, R.; Boardman, M.; Reinhard, I.; Sarbutt, A.; Watt, G.; Watt, C.; Uxa, S.; Prokopovich, D.A.; Belas, E.; Bolotnikov, A.E.; James, R.B.

2012-04-11T23:59:59.000Z

317

Magnetic field-induced phase transformation and variant reorientation in Ni2MnGa and NiMnCoIn magnetic shape memory alloys  

E-Print Network [OSTI]

The purpose of this work is to reveal the governing mechanisms responsible for the magnetic field-induced i) martensite reorientation in Ni2MnGa single crystals, ii) stress-assisted phase transformation in Ni2MnGa single crystals and iii) phase...

Karaca, Haluk Ersin

2009-05-15T23:59:59.000Z

318

High-Resolution Mn EXAFS of the Oxygen-Evolving Complex inPhotosystem II: Structural Implications for the Mn4Ca Cluster  

SciTech Connect (OSTI)

The biological generation of oxygen by the oxygen-evolving complex in photosystem II (PS II) is one of natures most important reactions. The recent X-ray crystal structures, while limited by resolutions of 3.2 to 3.5 A, have located the electron density associated with the Mn4Ca complex within the multi-protein PS II complex. Detailed structures critically depend on input from spectroscopic techniques such as EXAFS and EPR/ENDOR, as the XRD resolution does not allow for accurate determination of the position of Mn/Ca or the bridging and terminal ligand atoms. The number and distances of Mn-Mn/Ca/ligand interactions determined from EXAFS provide important constraints for the structure of the Mn cluster. Here we present data from a high-resolution EXAFS method using a novel multi-crystal monochromator that show three short Mn-Mn distances between 2.7 and 2.8 A and hence the presence of three di-mu-oxobridged units in the Mn4Ca cluster. This result imposes clear limitations on the proposed structures based on spectroscopic and diffraction data and provides input for refining such structures.

Yano, Junko; Pushkar, Yulia; Glatzel, Pieter; Lewis, Azul; Sauer,Kenneth; Messinger, Johannes; Bergmann, Uwe; Yachandra, Vittal

2005-09-06T23:59:59.000Z

319

Synthesis and characterization of pristine Li2MnSiO4 and Li2MnSiO4/C cathode materials for lithium ion batteries  

Science Journals Connector (OSTI)

Pristine Li2MnSiO4 and Li2MnSiO4.../C were both prepared by the sol–gel method. Citric acid was used as the carbon source. Lithium acetate dihydrate, manganese acetate tetrahydrate, and citric acid were first dis...

Qianqian Zhang; Quanchao Zhuang; Shoudong Xu; Xiangyun Qiu; Yongli Cui; Yueli Shi…

2012-05-01T23:59:59.000Z

320

Electronic- and band-structure evolution in low-doped (Ga,Mn)As  

SciTech Connect (OSTI)

Modulation photoreflectance spectroscopy and Raman spectroscopy have been applied to study the electronic- and band-structure evolution in (Ga,Mn)As epitaxial layers with increasing Mn doping in the range of low Mn content, up to 1.2%. Structural and magnetic properties of the layers were characterized with high-resolution X-ray diffractometry and SQUID magnetometery, respectively. The revealed results of decrease in the band-gap-transition energy with increasing Mn content in very low-doped (Ga,Mn)As layers with n-type conductivity are interpreted as a result of merging the Mn-related impurity band with the host GaAs valence band. On the other hand, an increase in the band-gap-transition energy with increasing Mn content in (Ga,Mn)As layers with higher Mn content and p-type conductivity indicates the Moss-Burstein shift of the absorption edge due to the Fermi level location within the valence band, determined by the free-hole concentration. The experimental results are consistent with the valence-band origin of mobile holes mediating ferromagnetic ordering in the (Ga,Mn)As diluted ferromagnetic semiconductor.

Yastrubchak, O.; Gluba, L.; ?uk, J. [Institute of Physics, UMCS, Pl. Marii Curie-Sk?odowskiej 1, 20-031 Lublin (Poland)] [Institute of Physics, UMCS, Pl. Marii Curie-Sk?odowskiej 1, 20-031 Lublin (Poland); Sadowski, J. [Institute of Physics, Polish Academy of Sciences, 02-668 Warszawa (Poland) [Institute of Physics, Polish Academy of Sciences, 02-668 Warszawa (Poland); MAX-Lab, Lund University, 22100 Lund (Sweden); Krzy?anowska, H. [Institute of Physics, UMCS, Pl. Marii Curie-Sk?odowskiej 1, 20-031 Lublin (Poland) [Institute of Physics, UMCS, Pl. Marii Curie-Sk?odowskiej 1, 20-031 Lublin (Poland); Department of Physics and Astronomy, Vanderbilt University, 6506 Stevenson Center, Nashville, Tennessee 37325 (United States); Domagala, J. Z.; Andrearczyk, T.; Wosinski, T. [Institute of Physics, Polish Academy of Sciences, 02-668 Warszawa (Poland)] [Institute of Physics, Polish Academy of Sciences, 02-668 Warszawa (Poland)

2013-08-07T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Control of absorption of monolayer MoS$_{2}$ thin-film transistor in one-dimensional defective photonic crystal  

E-Print Network [OSTI]

The light absorption and transmission of monolayer MoS$_{2}$ in a one-dimensional defective photonic crystal (d-1DPC) is theoretically investigated. The study shows that the strong interference effect decreases photon density in particular areas of the microcavity. The d-1DPC can reduce light absorption of monolayer MoS$_{2}$ and enhance light transmission. The impact of monolayer MoS$_{2}$ light absorption on the localization effect of photon is investigated when monolayer MoS$_{2}$ and the organic light-emitting diode are located in the same microcavity. However, monolayer MoS$_{2}$ does not reduce the localization effect of light by regulating the position of monolayer MoS$_{2}$ in the microcavity.

Yang, Fang-Fang; Xiao, Wen-bo; Liu, Jiang-Tao; Liu, Nian-Hua

2014-01-01T23:59:59.000Z

322

Effect of composition and heat treatment on MnBi magnetic materials  

SciTech Connect (OSTI)

The metallic compound MnBi is a promising rare-earth-free permanent magnet material, unique among all candidates for its high intrinsic coercivity (Hci) and its large positive temperature coefficient. The Hci of MnBi in thin-film or powder form can exceed 12 and 26 kOe at 300 and 523 K, respectively. Such a steep rise in Hci with increasing temperature is unique to MnBi. Consequently, MnBi is a highly sought-after hard phase for exchange coupling nanocomposite magnets. However, the reaction between Mn and Bi is peritectic, and hence Mn tends to precipitate out of the MnBi liquid during the solidification process. As result, when the alloy is prepared using conventional induction or arc-melting casting methods, additional Mn is required to compensate the precipitation of Mn. In addition to composition, post-casting annealing plays an important role in obtaining a high content of MnBi low-temperature phase (LTP) because the annealing encourages the Mn precipitates and the unreacted Bi to react, forming the desired LTP phase. Here we report a systematic study of the effect of composition and heat treatments on the phase content and magnetic properties of Mn–Bi alloys. In this study, 14 compositions were prepared using conventional metallurgical methods, and the compositions, crystal structures, phase content and magnetic properties of the resulting alloys were analyzed. The results show that the composition with 55 at.% Mn exhibits both the highest LTP content (93 wt.%) and magnetization (74 emu g?1 with 9 T applied field at 300 K).

Cui, Jun [Pacific Northwest National Laboratory; Choi, Jung-Pyung [Pacific Northwest National Laboratory; Polikarpov, Evgueni [Pacific Northwest National Laboratory; Bowden, Mark E [Pacific Northwest National Laboratory; Xie, Wei [Pacific Northwest National Laboratory; Li, Guosheng [Pacific Northwest National Laboratory; Nie, Zimin [Pacific Northwest National Laboratory; Zarkevich, Nikolai [Ames Laboratory; Kramer, Matthew J [Ames Laboratory; Johnson, Duane [Ames Laboratory

2014-10-01T23:59:59.000Z

323

Local structure of amorphous \\{MO50Ni50\\} determined by anomalous x-ray scattering using synchroton radiation  

Science Journals Connector (OSTI)

Anomalous (resonance) x-ray scattering technique using synchrotron radiation was applied to determine the compositionally resolved local structure of sputter deposited amorphous Mo50Ni50. The local environments of Mo atoms and Ni atoms were found to be significantly different from each other, but similar to the corresponding local environments in crystalline MoNi. The results compare favorably with those of the EXAFS measurement.

S. Aur; D. Kofalt; Y. Waseda; T. Egami; R. Wang; H.S. Chen; Boon-Keng Teo

1983-01-01T23:59:59.000Z

324

Negative ion photodetachment spectroscopy of the Al3O2 , Al3O3 , Al4Ox , Al5Ox (x = 35), Al6O5 , and Al7O5 clusters  

E-Print Network [OSTI]

Negative ion photodetachment spectroscopy of the Al3O2 , Al3O3 , Al4Ox , Al5Ox (x = 3­5), Al6O5 , and Al7O5 clusters Giovanni Meloni, Michael J. Ferguson and Daniel M. Neumark Department of Chemistry as an Advance Article on the web 9th September 2003 The Al3O2 , Al3O3 , Al4Ox , Al5Ox (x ¼ 3­5), Al6O5 , and Al7

Neumark, Daniel M.

325

2013 ALS User Meeting Highlights  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2013 ALS User Meeting Highlights 2013 ALS User Meeting Highlights 2013 ALS User Meeting Highlights Print This year's ALS User Meeting launched with a welcome from Users' Executive Committee Chair Corie Ralston and LBNL Director Paul Alivisatos. ALS Director Roger Falcone followed with a "state of the ALS" presentation that began with a reminder of the ALS mission, which he noted remains true even in the midst of a government shutdown: "Supporting users in doing outstanding science in a safe environment." Falcone gave the 414 meeting attendees an update on the ALS beamlines, which included good news about increased user numbers thanks to the new RAPIDD access system, enhanced robotics, and remote capabilities. Falcone reflected that ALS metrics continue to represent our highly productive users-the number of journal articles and papers per user that come from ALS research have continued to grow in the past year. Looking forward, Falcone touched on how a proposed ALS upgrade to a diffraction-limited light source would increase scientific capabilities.

326

2013 ALS User Meeting Highlights  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2013 ALS User Meeting Highlights 2013 ALS User Meeting Highlights 2013 ALS User Meeting Highlights Print Thursday, 24 October 2013 09:06 This year's ALS User Meeting launched with a welcome from Users' Executive Committee Chair Corie Ralston and LBNL Director Paul Alivisatos. ALS Director Roger Falcone followed with a "state of the ALS" presentation that began with a reminder of the ALS mission, which he noted remains true even in the midst of a government shutdown: "Supporting users in doing outstanding science in a safe environment." Falcone gave the 414 meeting attendees an update on the ALS beamlines, which included good news about increased user numbers thanks to the new RAPIDD access system, enhanced robotics, and remote capabilities. Falcone reflected that ALS metrics continue to represent our highly productive users-the number of journal articles and papers per user that come from ALS research have continued to grow in the past year. Looking forward, Falcone touched on how a proposed ALS upgrade to a diffraction-limited light source would increase scientific capabilities.

327

van der Waals Epitaxy of MoS2 Layers Using Graphene As Growth Templates  

SciTech Connect (OSTI)

We present a method for synthesizing MoS{sub 2}/Graphene hybrid heterostructures with a growth template of graphene-covered Cu foil. Compared to other recent reports, a much lower growth temperature of 400 C is required for this procedure. The chemical vapor deposition of MoS{sub 2} on the graphene surface gives rise to single crystalline hexagonal flakes with a typical lateral size ranging from several hundred nanometers to several micrometers. The precursor (ammonium thiomolybdate) together with solvent was transported to graphene surface by a carrier gas at room temperature, which was then followed by post annealing. At an elevated temperature, the precursor self-assembles to form MoS{sub 2} flakes epitaxially on the graphene surface via thermal decomposition. With higher amount of precursor delivered onto the graphene surface, a continuous MoS{sub 2} film on graphene can be obtained. This simple chemical vapor deposition method provides a unique approach for the synthesis of graphene heterostructures and surface functionalization of graphene. The synthesized two-dimensional MoS{sub 2}/Graphene hybrids possess great potential toward the development of new optical and electronic devices as well as a wide variety of newly synthesizable compounds for catalysts.

Shi, Yumeng [Massachusetts Institute of Technology (MIT); Zhou, Wu [Vanderbilt University; Lu, Ang-Yu [Academia Sinica, Hefei, China; Fang, Wenjing [Massachusetts Institute of Technology (MIT); Lee, Yi-Hsien [Massachusetts Institute of Technology (MIT); Hsu, Allen Long [Massachusetts Institute of Technology (MIT); Kim, Soo Min [Massachusetts Institute of Technology (MIT); Kim, Ki Kang [Massachusetts Institute of Technology (MIT); Yang, Hui Ying [Singapore University of Technology and Design; Liang, Lain-Jong [Academia Sinica, Hefei, China; Idrobo Tapia, Juan C [ORNL; Kong, Jing [Massachusetts Institute of Technology (MIT)

2012-01-01T23:59:59.000Z

328

Effect of Mo on pitting corrosion of ferritic steels in bromide and chloride solutions  

SciTech Connect (OSTI)

A model for pitting corrosion of stainless steels, independent of changes of passive film properties, was tested using Fe-18%Cr-x%Mo alloys in bromide and chlorine solutions. In 1M LiCl the pitting potential improved from {minus}50 mV{sub sce} to about 1200 mV{sub sce} on increasing Mo from 2% to 10%. In 1M LiBr the pitting potential increased from 125 to only 560 mV{sub sce}. Active dissolution kinetics of these steels in saturated solutions in a simulated pit were measured. Tafel lines for dissolution moved to more noble potentials with increases in Mo, indicating Mo inhibited dissolution rates. The potential increases were found to be equal to the increases in pitting potential for both halides. Agreement was interpreted in terms maintaining high halide concentrations in the pit by high rates of active metal dissolution. Bromide was less effective suggesting it interacted with Mo adsorbed on the dissolving surface.

Kaneko, M. [Nippon Steel Corp., Futtsu Chiba (Japan). Steel Research Lab; Isaacs, H.S. [Brookhaven National Lab., Upton, NY (United States)

1997-12-01T23:59:59.000Z

329

The Physics Programme Of The MoEDAL Experiment At The LHC  

E-Print Network [OSTI]

The MoEDAL experiment at Point 8 of the LHC ring is the seventh and newest LHC experiment. It is dedicated to the search for highly ionizing particle avatars of physics beyond the Standard Model, extending significantly the discovery horizon of the LHC. A MoEDAL discovery would have revolutionary implications for our fundamental understanding of the Microcosm. MoEDAL is an unconventional and largely passive LHC detector comprised of the largest array of Nuclear Track Detector stacks ever deployed at an accelerator, surrounding the intersection region at Point 8 on the LHC ring. Another novel feature is the use of paramagnetic trapping volumes to capture both electrically and magnetically charged highly-ionizing particles predicted in new physics scenarios. It includes an array of TimePix pixel devices for monitoring highly-ionizing particle backgrounds. The main passive elements of the MoEDAL detector do not require a trigger system, electronic readout, or online computerized data acquisition. The aim of this paper is to give an overview of the MoEDAL physics reach, which is largely complementary to the programs of the large multi-purpose LHC detectors ATLAS and CMS.

B. Acharya; J. Alexandre; J. Bernabéu; M. Campbell; S. Cecchini; J. Chwastowski; M. De Montigny; D. Derendarz; A. De Roeck; J. R. Ellis; M. Fairbairn; D. Felea; M. Frank; D. Frekers; C. Garcia; G. Giacomelli; M. Giorgini; D. Ha?egan; T. Hott; J. Jak?bek; A. Katre; D-W Kim; M. G. L. King; K. Kinoshita; D. Lacarrere; S. C. Lee; C. Leroy; A. Margiotta; N. Mauri; N. E. Mavromatos; P. Mermod; V. A. Mitsou; R. Orava; L. Pasqualini; L. Patrizii; G. E. P?v?la?; J. L. Pinfold; M. Platkev?; V. Popa; M. Pozzato; S. Pospisil; A. Rajantie; Z. Sahnoun; M. Sakellariadou; S. Sarkar; G. Semenoff; G. Sirri; K. Sliwa; R. Soluk; M. Spurio; Y. N. Srivastava; R. Staszewski; J. Swain; M. Tenti; V. Togo; M. Trzebinski; J. A. Tuszy?ski; V. Vento; O. Vives; Z. Vykydal; A. Widom; J. H. Yoon

2014-05-29T23:59:59.000Z

330

Elementary Steps of Syngas Reactions on Mo2C(001): Adsorption Thermochemistry and Bond Dissociation  

SciTech Connect (OSTI)

Density functional theory (DFT) and ab initio thermodynamics are applied in order to investigate the most stable surface and subsurface terminations of Mo{sub 2}C(001) as a function of chemical potential and in the presence of syngas. The Mo-terminated (001) surface is then used as a model surface to evaluate the thermochemistry and energetic barriers for key elementary steps in syngas reactions. Adsorption energy scaling relations and Broensted-Evans-Polanyi relationships are established and used to place Mo{sub 2}C into the context of transition metal surfaces. The results indicate that the surface termination is a complex function of reaction conditions and kinetics. It is predicted that the surface will be covered by either C{sub 2}H{sub 2} or O depending on conditions. Comparisons to transition metals indicate that the Mo-terminated Mo{sub 2}C(001) surface exhibits carbon reactivity similar to transition metals such as Ru and Ir, but is significantly more reactive towards oxygen.

Medford, Andrew

2012-02-16T23:59:59.000Z

331

GAMETOPHYTIC SELF-INCOMPATIBILITY (Newbigin et al., 1993; Matton et al., 1994; Dodds et al., 1997)  

E-Print Network [OSTI]

GAMETOPHYTIC SELF-INCOMPATIBILITY (Newbigin et al., 1993; Matton et al., 1994; Dodds et al., 1997, but expressed at high levels in the style. d. There are high levels of this gene product in self-incompatible species, whereas very low levels in self-compatible species. f. Generalized features: #12;Self-incompatibility

Bhattacharyya, Madan Kumar

332

Relationship Between Onset Thresholds, Trigger Types, and Rotation Shear for the m/n=2/1 Neoclassical Tearing Mode in a High-? Spherical Torus  

SciTech Connect (OSTI)

The onset conditions for the m/n=2/1 neoclassical tearing mode (NTM) are studied in terms of neoclassical drive, triggering instabilities, and toroidal rotation or rotation shear, in the spherical torus NSTX [M. Ono, et al., Nuclear Fusion 40, 557 (2000)]. There are three typical onset conditions for these modes, given in order of increasing neoclassical drive required for mode onset: triggering by energetic particle modes, triggering by edge localized modes, and cases where the modes appear to grow without a trigger. In all cases, the required drive increases with toroidal rotation shear, implying a stabilizing effect from the shear.

Gerhardt, S. P.; Brennan, D. P.; Buttery, R.; La Haye, R. J.; Sabbagh, S.; Strait, E.; Bell, M.; Bell, R.; Fredrickson, E.; Gates, D.; LeBlanc, B.; Menard, J.; Stutman, D.; Tritz, K.; Yuh, H.

2009-02-24T23:59:59.000Z

333

Effect of a high electric field on the conductivity of MnGa{sub 2}S{sub 4}, MnIn{sub 2}S{sub 4}, and MnGaInS{sub 4} single crystals  

SciTech Connect (OSTI)

The results of studying the effect of a high electric field on the conductivity of MnGa{sub 2}S{sub 4}, MnIn{sub 2}S{sub 4}, and MnGaInS{sub 4} single crystals are reported. The activation energy is determined in high and low electric fields. It is established that the decrease in the activation energy with increasing the external voltage is associated with decreasing the depth of the potential well, in which the electron is located.

Niftiev, N. N. [Azerbaijan State Pedagogical University (Azerbaijan); Tagiev, O. B. [National Academy of Sciences of Azerbaijan, Institute of Physics (Azerbaijan)

2009-09-15T23:59:59.000Z

334

Improvement of magnetic properties of FePt nanoparticles by adding Mn  

SciTech Connect (OSTI)

FePtMn nanoparticles were synthesized by the simultaneous reduction of iron acetylacetonate, platinum acetylacetonate, and manganese acetylacetonate with 1,2-hexadecanediol as the reducing reagent in the polyol process. The coercivity of annealed nanoparticles strongly depends on the amount of Mn addition. A maximum coercivity of 19 kOe at room temperature was obtained for (Fe{sub 32}Pt{sub 68}){sub 87}Mn{sub 13} nanoparticles annealed at 700 deg. C for 1 h. The presence of Mn in the FePt L1{sub 0} lattice may induce local strain so the ordering is accelerated. In addition, the high coercivity can presumably be partially related to the local bonding of Pt-Mn (or Fe-Mn) in the L1{sub 0} structure.

Lai, C.-H.; Ho, C.-H. [Department of Materials Science and Engineering, National Tsing Hua University, 300, Hsinchu, Taiwan (China)

2005-05-15T23:59:59.000Z

335

Ge{sub 1-x}Mn{sub x} heteroepitaxial quantum dots: Growth, morphology, and magnetism  

SciTech Connect (OSTI)

Heteroepitaxial Ge{sub 1-x}Mn{sub x} quantum dots (QDs) were grown on Si (001) by molecular beam epitaxial co-deposition, with x = 0 to 0.10, in order to explore the interaction between Mn content, surface morphological evolution, and magnetism. Morphological evolution typical of the Ge/Si (001) system was observed, where the effect of Mn on surface morphology is surprisingly minimal at low Mn content, with no obvious surface morphological indicators of second phase formation. As the Mn content increases, secondary phase formation becomes evident, appearing to heterogeneously nucleate on or within Ge QDs. Still higher Mn concentrations lead to extensive second phase formation interspersed with an array of Ge QDs. Although ferromagnetism up to 220 K is observed, likely arising from intermetallic precipitates, there is no clear evidence for room-temperature ferromagnetism associated with a dilute magnetic solution phase.

Kassim, J.; Nolph, C.; Reinke, P.; Floro, J. [Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904 (United States); Jamet, M. [Institut Nanosciences et Cryogenie/SP2M, CEA-UJF, F-38054 Grenoble (France)

2013-02-21T23:59:59.000Z

336

Trace Element Analysis At Roosevelt Hot Springs Area (Christensen, Et Al.,  

Open Energy Info (EERE)

Christensen, Et Al., Christensen, Et Al., 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Trace Element Analysis At Roosevelt Hot Springs Area (Christensen, Et Al., 1983) Exploration Activity Details Location Roosevelt Hot Springs Area Exploration Technique Trace Element Analysis Activity Date Usefulness useful DOE-funding Unknown Notes Three of the recognized trace-element suites are characteristic of the surface and near-surface environment. These are: (1) concentrations of As, Sb, Be and Hg associated with siliceous material at the location of liquid discharge, fluid mixing, or at boiling interfaces; (2) deposits of Mn and Fe oxides containing concentrations of Ba, W, Be, Co, Cu, As, Sb and Hg formed by the oxidation of cooled brines; and (3) high concentrations of Hg

337

Structural, textural and catalytic properties of Al-, Ti-pillared clays  

SciTech Connect (OSTI)

Al-, Ti- and Zr-pillared clays were characterized and NiMo/Pilc`s were tested in HDS reactions. The combination of activity measurements with Moessbauer Spectroscopy and x-ray microanalysis at microscopical scale give insight in the metal phases migration during pillaring, reaction and regeneration steps. {Alpha}-Fe phase in free Fe{sub 2}O{sub 3} islands predominate together with structural Fe{sup 3+} phase, but during the catalytic reaction Fe{sup 2+} forms. Delamination of the Ti- and Zr-Clay supports, together with high Lewis acidity might enhance their catalytic properties.

Ramos-Galvan, C.E.; Dominguez, J.M.; Sandoval-Robles, G.; Castillo-Mares, A.; Nava E, N.

1996-12-31T23:59:59.000Z

338

Structural Changes in the Mn(4)Ca Cluster And the Mechanism of Photosynthetic Water Splitting  

SciTech Connect (OSTI)

Photosynthetic water oxidation, where water is oxidized to dioxygen, is a fundamental chemical reaction that sustains the biosphere. This reaction is catalyzed by a Mn{sub 4}Ca complex in the photosystem II (PS II) oxygen-evolving complex (OEC): a multiprotein assembly embedded in the thylakoid membranes of green plants, cyanobacteria, and algae. The mechanism of photosynthetic water oxidation by the Mn{sub 4}Ca cluster in photosystem II is the subject of much debate, although lacking structural characterization of the catalytic intermediates. Biosynthetically exchanged Ca/Sr-PS II preparations and x-ray spectroscopy, including extended x-ray absorption fine structure (EXAFS), allowed us to monitor Mn-Mn and Ca(Sr)-Mn distances in the four intermediate S states, S{sub 0} through S{sub 3}, of the catalytic cycle that couples the one-electron photochemistry occurring at the PS II reaction center with the four-electron water-oxidation chemistry taking place at the Mn{sub 4}Ca(Sr) cluster. We have detected significant changes in the structure of the complex, especially in the Mn-Mn and Ca(Sr)-Mn distances, on the S{sub 2}-to-S{sub 3} and S{sub 3}-to-S{sub 0} transitions. These results implicate the involvement of at least one common bridging oxygen atom between the Mn-Mn and Mn-Ca(Sr) atoms in the O-O bond formation. Because PS II cannot advance beyond the S{sub 2} state in preparations that lack Ca(Sr), these results show that Ca(Sr) is one of the critical components in the mechanism of the enzyme. The results also show that Ca is not just a spectator atom involved in providing a structural framework, but is actively involved in the mechanism of water oxidation and represents a rare example of a catalytically active Ca cofactor.

Pushkar, Y.; Yano, J.; Sauer, K.; Boussac, A.; Yachandra, V.K.

2009-05-21T23:59:59.000Z

339

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO | Department of  

Broader source: Energy.gov (indexed) [DOE]

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO SUMMARY This EA evaluates potential environmental impacts of a proposal to transfer the NNSA's KCP property either in whole or in part. This includes considering the No Action Alternative, where NNSA relocates operations from the KCP and maintains ownership of its property; and the Proposed Action Alternative, where NNSA transfers the KCP property for mixed use (industrial, warehouse, commercial, office). Under the proposed action, the EA addresses the potential direct, indirect, and cumulative impacts of using the KCP property for uses consistent with current zoning. NNSA also analyzes the potential environmental impacts of partial and/or complete

340

EIS-0475: Disposition of the Bannister Federal Complex, Kansas City, MO |  

Broader source: Energy.gov (indexed) [DOE]

EIS-0475: Disposition of the Bannister Federal Complex, Kansas EIS-0475: Disposition of the Bannister Federal Complex, Kansas City, MO EIS-0475: Disposition of the Bannister Federal Complex, Kansas City, MO Summary NNSA/DOE announces its intent to prepare an EIS for the disposition of the Bannister Federal Complex, Kansas City, MO. NNSA previously decided in a separate NEPA review (EA-1592) to relocate its operations from the Bannister Federal Complex to a newly constructed industrial campus eight miles from the current location. NOTE: On November 30, 2012, DOE announced the cancellation of this EIS and its intent to prepare an Environmental Assessment (EA-1947). Public Comment Opportunities None available at this time. Documents Available for Download November 30, 2012 EA-1947: Notice of Intent to Prepare an Environmental Assessment and

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

DOE - Office of Legacy Management -- Weldon Spring Chemical Co - MO 03  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Weldon Spring Chemical Co - MO 03 Weldon Spring Chemical Co - MO 03 FUSRAP Considered Sites Site: Weldon Spring Chemical Co. (MO.03) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: Also see Weldon Spring, Missouri, Site Documents Related to Weldon Spring Chemical Co. Summary of Work Session - Focus Area: Monitoring and Maintenance. Summary of Weldon Spring Long-Term Stewardship Plan Public Workshop. Summary of Work Session - Focus Area: Communication and Public Involvement. Land Use and Institutional Controls and Homeland SecurityFocus Area Work SessionWeldon Spring SiteInterpretive CenterDecember 5, 20022 Agenda7:00 p.m.Welcome, Pam Thompson, Manager, Weldon SpringObjective of

342

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO | Department of  

Broader source: Energy.gov (indexed) [DOE]

EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO EA-1947: Transfer of the Kansas City Plant, Kansas City, MO SUMMARY This EA evaluates potential environmental impacts of a proposal to transfer the NNSA's KCP property either in whole or in part. This includes considering the No Action Alternative, where NNSA relocates operations from the KCP and maintains ownership of its property; and the Proposed Action Alternative, where NNSA transfers the KCP property for mixed use (industrial, warehouse, commercial, office). Under the proposed action, the EA addresses the potential direct, indirect, and cumulative impacts of using the KCP property for uses consistent with current zoning. NNSA also analyzes the potential environmental impacts of partial and/or complete

343

DENSITY-FUNCTIONAL STUDY OF U-Mo AND U-Zr ALLOYS  

SciTech Connect (OSTI)

Density-functional theory previously used to describe phase equilibria in U-Zr alloys [A. Landa, P. Soederlind, P.E.A. Turchi, J. Alloys Comp. 478 (2009) 103-110] is extended to investigate the ground-state properties of U-Mo solid solutions. We discuss how the heat of formation in both alloys correlates with the charge transfer between the alloy components, and how the specific behavior of the density of states in the vicinity of the Fermi level promotes the stabilization of the U{sub 2}Mo compound. Our calculations prove that, due to the existence of a single {gamma}-phase over the typical fuel operation temperatures, {gamma}-U-Mo alloys should indeed have much lower constituent redistribution than {gamma}-U-Zr alloys for which binodal decomposition causes a high degree of constituent redistribution.

Landa, A; Soderlind, P; Turchi, P A

2010-11-01T23:59:59.000Z

344

The development of uranium foil farication technology utilizing twin roll method for Mo-99 irradiation target  

E-Print Network [OSTI]

MDS Nordion in Canada, occupying about 75% of global supply of Mo-99 isotope, has provided the irradiation target of Mo-99 using the rod-type UAl sub x alloys with HEU(High Enrichment Uranium). ANL (Argonne National Laboratory) through co-operation with BATAN in Indonesia, leading RERTR (Reduced Enrichment for Research and Test Reactors) program substantially for nuclear non-proliferation, has designed and fabricated the annular cylinder of uranium targets, and successfully performed irradiation test, in order to develop the fabrication technology of fission Mo-99 using LEU(Low Enrichment Uranium). As the uranium foils could be fabricated in laboratory scale, not in commercialized scale by hot rolling method due to significant problems in foil quality, productivity and economic efficiency, attention has shifted to the development of new technology. Under these circumstances, the invention of uranium foil fabrication technology utilizing twin-roll casting method in KAERI is found to be able to fabricate LEU or...

Kim, C K; Park, H D

2002-01-01T23:59:59.000Z

345

Effect of Zn, Mn, and Fe on Cd accumulation in phytoplankton ...  

Science Journals Connector (OSTI)

We examined the effect of important controlling factors (free ion concentrations of Cd, Zn, and Mn and Fe limitation of growth rate) on Cd accumulation by an ...

346

Diluted ferromagnetic semiconductor Li(Zn,Mn)P with decoupled charge and spin doping  

Science Journals Connector (OSTI)

We report the discovery of a diluted magnetic semiconductor, Li(Zn,Mn)P, in which charge and spin are introduced independently via lithium off-stoichiometry and the isovalent substitution of Mn2+ for Zn2+, respectively. Isostructural to (Ga,Mn)As, Li(Zn,Mn)P was found to be a p-type ferromagnetic semiconductor with excess lithium providing charge doping. First-principles calculations indicate that excess Li is favored to partially occupy the Zn site, leading to hole doping. Ferromagnetism with Curie temperature up to 34 K is achieved while the system still shows semiconducting transport behavior.

Z. Deng; K. Zhao; B. Gu; W. Han; J. L. Zhu; X. C. Wang; X. Li; Q. Q. Liu; R. C. Yu; T. Goko; B. Frandsen; L. Liu; Jinsong Zhang; Yayu Wang; F. L. Ning; S. Maekawa; Y. J. Uemura; C. Q. Jin

2013-08-21T23:59:59.000Z

347

Toughness of Cr-Mo-V steels for steam-turbine rotors  

SciTech Connect (OSTI)

Cr-Mo-V steels are used extensively as the rotor material in the High Pressure and Intermediate Pressure Sections of modern steam turbines. The toughness of these rotors has a major influence on the reliability and efficiency of the turbine and the overall economy of operation and maintenance of the plant. The metallurgical factors affecting the toughness of the rotors and the methods to improve the toughness are now understood better than ever before. This paper will present a broad overview of the materials and design aspects of the toughness of Cr-Mo-V rotors with emphasis on the salient results of recent research programs aimed at improving their toughness.

Viswanathan, R.; Jaffee, R.I.

1982-04-01T23:59:59.000Z

348

MoO3 trapping layers with CF4 plasma treatment in flash memory applications  

Science Journals Connector (OSTI)

Abstract In this research, we used MoO3 with CF4 plasma treatment as charge trapping layer in metal-oxide-high-k -oxide-Si-type memory. We analyzed material properties and electrical characteristics with multiple analyses. The plasma treatment could increase the trapping density, reduce the leakage current, expand band gap, and passivate the defect to enhance the memory performance. The MoO3 charge trapping layer memory with suitable CF4 plasma treatment is promising for future nonvolatile memory applications.

Chuyan Haur Kao; Hsiang Chen; Su-Zhien Chen; Chian Yu Chen; Kuang-Yu Lo; Chun Han Lin

2014-01-01T23:59:59.000Z

349

Mo-99 production at the Annular Core Research Reactor - recent calculative results  

SciTech Connect (OSTI)

Significant progress has been made over the past year in understanding the chemistry and processing challenges associated with {sup 99}Mo production using Cintichem type targets. Targets fabricated at Los Alamos National Laboratory have been successfully irradiated in fuel element locations at the Annular Core Research Reactor (ACRR) and processed at the Sandia Hot Cell Facility. The next goal for the project is to remove the central cavity experiment tube from the reactor core, allowing for the irradiation of up to 37 targets. After the in-core work is complete, the reactor will be capable of producing significant quantities of {sup 99}Mo.

Parma, E.J.

1997-11-01T23:59:59.000Z

350

Substitution of modified 9 Cr-1 Mo steel for austentic stainless steels  

SciTech Connect (OSTI)

This report describes the current program to develop a high-strength ferritic-martensitic steel. The alloy is essentially Fe-9% Cr-1% Mo with small additions of V and Nb and is known as modifed 9 Cr-1 Mo steel. Its elevated-temperature properties and design allowable stresses match those of type 304 stainless steel for temperatures up to 600/sup 0/C and exceed those of other ferritic steels by factors of 2 to 3. The improved strength of this alloy permits its use in place of stainless steels for many applications.

Sikka, V. K.

1982-04-01T23:59:59.000Z

351

The physics case for the MoEDAL experiment at LHC  

E-Print Network [OSTI]

The MoEDAL experiment (Monopole and Exotics Detector at the LHC) is designed to directly search for magnetic monopoles and other highly-ionising stable or metastable particles arising in theoretical scenarios beyond the Standard Model. Its physics goals are accomplished by the deployment of plastic nuclear track detectors combined with trapping volumes for capturing charged highly-ionising particles and TimePix pixel devices for monitoring. This paper is an overview of the MoEDAL physics reach, which is largely complementary to the programs of the large multi-purpose LHC detectors ATLAS and CMS.

Mitsou, Vasiliki A

2014-01-01T23:59:59.000Z

352

Energieversorgung als Dienstleistung—Elektrizitätswirtschaft  

Science Journals Connector (OSTI)

Im Herbst 1988 legte die VDEW ihren Hitgliedsunternehmen das Positionspapier “Die Stromversorger als Dienstleistungspartner” vor und machte es zugleich einer interessierten Öffentlichkeit bekannt. Das Position...

K. Bechthold

1991-01-01T23:59:59.000Z

353

Energieversorgung als Dienstleistung—Mineralölwirtschaft  

Science Journals Connector (OSTI)

Meine Damen, meine Herren, Energieversorgung als Dienstleistung, dieses Thema beherrscht die Energiediskussion seit einiger Zeit. Der Begriff ist etwas schillernd, seine genaue Eingrenzung schwierig, aber er k...

P. Schillmöller

1991-01-01T23:59:59.000Z

354

Transiträume als Orte des Konsums.  

E-Print Network [OSTI]

??Insbesondere seit den 1990er Jahren ist international eine wachsende Bedeutung der Transiträume Tankstelle, Flughafen und Bahnhof als Einzelhandels- und Dienstleistungsstandorte zu beobachten. Vielfältige Gründe sowohl… (more)

Korn, Juliane

2006-01-01T23:59:59.000Z

355

MoS2 Nanoplates Consisting of Disordered Graphene-like Layers for High Rate Lithium Battery Anode Materials  

Science Journals Connector (OSTI)

MoS2 nanoplates, consisting of disordered graphene-like layers, with a thickness of ?30 nm were prepared by a simple, scalable, one-pot reaction using Mo(CO)6 and S in an autoclave. The product has a interlayer distance of 0.69 nm, which is much larger ...

Haesuk Hwang; Hyejung Kim; Jaephil Cho

2011-09-29T23:59:59.000Z

356

Solar Energy Materials & Solar Cells 58 (1999) 199}208 The behaviour of Na implanted into Mo thin "lms  

E-Print Network [OSTI]

Solar Energy Materials & Solar Cells 58 (1999) 199}208 The behaviour of Na implanted into Mo thin, As ngstro( m Solar Center, P.O. Box 534, SE-751 21 Uppsala, Sweden Department of Materials Science Mo thin "lms used as back contacts for Cu(In,Ga)Se solar cells. The samples were analysed

Rockett, Angus

357

Magnetic properties of MoS2: Existence of ferromagnetism Sefaattin Tongay,1,2,a),b)  

E-Print Network [OSTI]

Magnetic properties of MoS2: Existence of ferromagnetism Sefaattin Tongay,1,2,a),b) Sima S 4 September 2012; published online 18 September 2012) We report on the magnetic properties of MoS2 measured from room temperature down to 10K and magnetic fields up to 5 T. We find that single crystals

Wu, Junqiao

358

Materials Science and Engineering A261 (1999) 4452 Mo5Si3 single crystals: physical properties and mechanical behavior  

E-Print Network [OSTI]

. Among these phases, refractory metal silicides appear to be more attractive because of their ultra-high melting temperatures [1]. Among the refractory metal silicides, the silicides in the Mo­Si system show processing, physical properties and mechanical behavior of an ultrahigh temperature structural silicide, Mo5

359

11/04/02 G. W. Rubloff AVS 2002 MS MoA5 1 Spatially Programmable Reactor Design  

E-Print Network [OSTI]

optimization is constrained by fixed reactor design manufacturing #12;11/04/02 G. W. Rubloff ­ AVS 2002 ­ MS Mo spatial conditions in programmable reactor Uniformity unacceptable Produce high uniformity with optimal11/04/02 G. W. Rubloff ­ AVS 2002 ­ MS MoA5 1 Spatially Programmable Reactor Design: Toward a New

Rubloff, Gary W.

360

Using direct hot-rolling approach to obtain dual-phase weathering steel Cu–P–Cr–Ni–Mo  

Science Journals Connector (OSTI)

A weathering steel Cu–P–Cr–Ni–Mo has been ... based on the continuous cooling transformation diagram of weathering steel Cu–P–Cr–Ni–Mo. The results show that the microstructures of DP weathering steels Cu–P–Cr–Ni...

Chunling Zhang; Dayong Cai; Bo Liao; Yunchang Fan

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Theory of weak localization in ferromagnetic (Ga,Mn)As  

E-Print Network [OSTI]

&M University, College Station, Texas 77843-4242, USA 3Institute of Physics, ASCR, v.v.i., Cukrovarnicka 10, 162 53 Praha 6, Czech Republic 4School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom #1;Received 27 November.... Unlike earlier theoretical work15,16 which ad- dressed quantum interference in ferromagnets, we focus our study on a four-band model which is directly relevant to the valence bands of #1;Ga,Mn#2;As. We demonstrate that the quan- tum interference...

Garate, Ion; Sinova, Jairo; Jungwirth, T.; MacDonald, A. H.

2009-01-01T23:59:59.000Z

362

Surface morphology and magnetic anisotropy in (Ga,Mn)As  

E-Print Network [OSTI]

Atomic Force Microscopy and Grazing incidence X-ray diffraction measurements have revealed the presence of ripples aligned along the $[1\\bar{1}0]$ direction on the surface of (Ga,Mn)As layers grown on GaAs(001) substrates and buffer layers, with periodicity of about 50 nm in all samples that have been studied. These samples show the strong symmetry breaking uniaxial magnetic anisotropy normally observed in such materials. We observe a clear correlation between the amplitude of the surface ripples and the strength of the uniaxial magnetic anisotropy component suggesting that these ripples might be the source of such anisotropy.

S. Piano; X. Marti; A. W. Rushforth; K. W. Edmonds; R. P. Campion; O. Caha; T. U. Schulli; V. Holy; B. L. Gallagher

2010-10-01T23:59:59.000Z

363

Small non-polar complexes exhibiting significant piezoelectric properties: Solvothermal synthesis and crystal structures of MO{sub 5}V(tren){center_dot}H{sub 2}O (M=Mo and W; tren=tris(2-aminoethyl)amine)  

SciTech Connect (OSTI)

The two isostructural complexes MO{sub 5}V(tren){center_dot}H{sub 2}O (M=Mo (1) and W (2)) were synthesized under solvothermal conditions at pH Almost-Equal-To 12 crystallizing in the non-centrosymmetric space group P2{sub 1}2{sub 1}2{sub 1}. The structures are constructed by a distorted tetrahedral [MO{sub 4}]{sup 2-} anion bound via one shared oxygen atom to a severely distorted [V{sup IV}N{sub 4}O]{sup 2+} complex completing the octahedral coordination around the V centre. The two O atoms in the VN{sub 4}O{sub 2} octahedron are in cis position. The two compounds represent rare examples where the [MO{sub 4}]{sup 2-} anion is acting as a ligand. Both compounds exhibit a piezoelectric effect which is more pronounced for M=Mo. The samples are further characterized with IR and UV/Vis spectroscopy and thermal analysis. - Graphical abstract: The complexes [(V(tren)O)(MO4)]{center_dot}H2O (M = Mo, W; tren = tris(2-aminoethyl)amine)) composed of vertex-linked [MO4]{sup 2-} tetrahedron and [VN4O6]{sup 2+}octahedron. Highlights: Black-Right-Pointing-Pointer [MO{sub 4}]{sup 2-} tetrahedron (M=Mo, W) acting as ligand. Black-Right-Pointing-Pointer Jahn-Teller and steric distortion of the [VN{sub 4}O{sub 2}]{sup 2+} octahedron. Black-Right-Pointing-Pointer Non-centrosymmetric complexes exhibiting pronounced piezoelectric effect.

Rasmussen, M.; Naether, C. [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet Kiel, Max-Eyth-Str. 2, D-24118 Kiel (Germany)] [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet Kiel, Max-Eyth-Str. 2, D-24118 Kiel (Germany); Bismayer, U. [Mineralogisch-Petrographisches Institut, Universitaet Hamburg, Grindelallee 48 20146 Hamburg (Germany)] [Mineralogisch-Petrographisches Institut, Universitaet Hamburg, Grindelallee 48 20146 Hamburg (Germany); Bensch, W., E-mail: wbensch@ac.uni-kiel.de [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet Kiel, Max-Eyth-Str. 2, D-24118 Kiel (Germany)

2012-11-15T23:59:59.000Z

364

Processing and characterization of nanocrystalline molybdenum disilicide (MoSi{sub 2}) consolidated by hot isostatic pressing (HIP)  

SciTech Connect (OSTI)

This work studied the effect nanocrystalline processing may have on mechanical properties of MoSi{sub 2} and the ease with which MoSi{sub 2} powder can be processed into a bulk shape. (MoSi{sub 2} presently is limited by poor strength above 1000 C and brittleness below DBTT.) This work studied cold and hot isostatic pressing (CIP, HIP). The attrited, CIPed, and HIPed samples were characterized by chemical analysis, XRD, SEM, microhardness, optical microscopy, and quantitative metallography (porosity, density). Fracture toughness of the nanocrystalline MoSi{sub 2} was found to be a factor of two higher than conventional MoSi{sub 2} and the hardness of 1500 C-HIPed compacts were higher, as well. Modulus test showed the calculated elastic constants to be higher than the original Cerac material.

Haji-Mahmood, M.S.

1995-02-10T23:59:59.000Z

365

High blue-near ultraviolet photodiode response of vertically stacked graphene-MoS{sub 2}-metal heterostructures  

SciTech Connect (OSTI)

We present a study on the photodiode response of vertically stacked graphene/MoS{sub 2}/metal heterostructures in which MoS{sub 2} layers are doped with various plasma species. In comparison with undoped heterostructures, such doped ones exhibit significantly improved quantum efficiencies in both photovoltaic and photoconductive modes. This indicates that plasma-doping-induced built-in potentials play an important role in photocurrent generation. As compared to indium-tin-oxide/ MoS{sub 2}/metal structures, the presented graphene/MoS{sub 2}/metal heterostructures exhibit greatly enhanced quantum efficiencies in the blue-near ultraviolet region, which is attributed to the low density of recombination centers at graphene/MoS{sub 2} heterojunctions. This work advances the knowledge for making photo-response devices based on layered materials.

Wi, Sungjin; Chen, Mikai; Nam, Hongsuk; Liu, Amy C.; Meyhofer, Edgar; Liang, Xiaogan, E-mail: xiaoganl@umich.edu [Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109 (United States)

2014-06-09T23:59:59.000Z

366

Minnesota Innovation Partnerships (MN-IP) Try and Buy MN-IP Try and Buy --for companies interested in licensing existing U of M inventions  

E-Print Network [OSTI]

is executed BUY (LICENSE) · Low, published royalty rate, with first $1 million of product sales royalty-free · Royalty rates based on industry comparables · Royalty rate discount for MN operating companies2 · Royalty

Minnesota, University of

367

Mn-doped Ga(As,P) and (Al,Ga)As ferromagnetic semiconductors: Electronic structure calculations  

E-Print Network [OSTI]

ASCR, Na Slovance 2, 182 21 Praha 8, Czech Republic 2Department of Physics, Texas A&M University, College Station, Texas 77843-4242, USA 3Department of Physics, University of Texas at Austin, Austin, Texas 78712-1081, USA 4School of Physics... and Astronomy, University of Nottingham, Nottingham NG7 2RD, United Kingdom 5Institute of Physics ASCR, Cukrovarnick? 10, 162 53 Praha 6, Czech Republic #1;Received 6 September 2006; published 12 January 2007#2; A remarkable progress towards functional...

Masek, J.; Kudrnovsky, J.; Maca, F.; Sinova, Jairo; MacDonald, A. H.; Campion, R. P.; Gallagher, B. L.; Jungwirth, T.

2007-01-01T23:59:59.000Z

368

E-Print Network 3.0 - al-fe-mn-si obtidas por Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

o sistema Mx b. (d) Seja "x M b" a aproximacao da solucao obtida por MATLAB. Sejam y e z... as aproximacoes obtidas atraves das suas implementacoes da...

369

Synthesis of NiCoMnX (X = In, Al) Heusler-type Magnetic Shape Memory Alloy Thin Films  

E-Print Network [OSTI]

found applications in biomedical and aerospace industries, actuator applications are limited to relatively low frequencies compared to piezoelectric materials. The slow response of shape memory alloys is associated with heating or cooling the material...

Rios, Steven Eli

2014-08-13T23:59:59.000Z

370

Desulfurization of saturated C3S molecules on Mo(110): the effect of ring strain  

SciTech Connect (OSTI)

The reactions of trimethylene sulfide (c-C3H6S) and 1-propanethiol (C3H7SH) have been investigated on Mo(110) under ultrahigh vacuum using temperature-programmed reaction spectroscopy and Auger electron spectroscopy. Deuterium preadsorption experiments were conducted in conjunction with temperature-programmed reaction spectroscopy to deduce some mechanistic details of the reactions. Desulfurization reactions of both molecules to produce propane and propene were observed in the temperature range of 300-350 K, with propane production preceding propene production. In addition, trimethylene sulfide decomposed to form cyclopropane at 190 K. Both trimethylene sulfide and 1-propanethiol reacted on Mo(110) to produce gaseous dihydrogen in two peaks at approximately 350 and 540 K, as well as surface carbon and sulfur. Small amounts of reversibly adsorbed 1-propanethiol desorbed from Mo(110) between 175 and 200 K. Auger electron spectroscopy measurements suggest that approximately 50% of chemisorbed trimethylene sulfide decomposed to form hydrocarbons, while 70% of irreversibly chemisorbed 1-propanethiol decomposed to form hydrocarbons. The decomposition of trimethylene sulfide to cyclopropane is postulated to occur by one of three pathways. One of these pathways is entirely intramolecular, and the other two involve metallacycle transition states or intermediates. Trimethylene sulfide and 1-propanethiol are proposed to form propane and propene by way of a surface propyl thiolate intermediate, in a fashion similar to the reactions of tetrahydrothiophene and 1-butanethiol on Mo(110). The possible contributions of ring strain to the energetics and selectivity of the desulfurization reactions are discussed.

Roberts, J.T.; Friend, C.M.

1987-06-24T23:59:59.000Z

371

Hole Selective MoOx Contact for Silicon Solar Cells Corsin Battaglia,,,  

E-Print Network [OSTI]

Hole Selective MoOx Contact for Silicon Solar Cells Corsin Battaglia,,, Xingtian Yin,,,§, Maxwell, University of California, Berkeley, California 94720, United States Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States § Electronic Materials Research

Javey, Ali

372

MoS2/Graphene Composite Paper for Sodium-Ion Battery Electrodes  

Science Journals Connector (OSTI)

We study the synthesis and electrochemical and mechanical performance of layered free-standing papers composed of acid-exfoliated few-layer molybdenum disulfide (MoS2) and reduced graphene oxide (rGO) flakes for use as a self-standing flexible electrode ...

Lamuel David; Romil Bhandavat; Gurpreet Singh

2014-01-21T23:59:59.000Z

373

MoSeS: Modelling and Simulation for e-Social Science  

Science Journals Connector (OSTI)

...Crossing boundaries: computational science, e-Science and global e-Infrastructure...4054/DemRes.2004.10.7 . Office for National Statistics 2007 Sub-national...and Simulation for e-Social Science. | MoSeS (Modelling and Simulation...

2009-01-01T23:59:59.000Z

374

Hans-Heinrich Mo bius On the history of solid electrolyte fuel cells  

E-Print Network [OSTI]

technologically orientated development of SO- FCs proceeds today. Key words Solid oxide fuel cells á SolidREVIEW Hans-Heinrich Mo� bius On the history of solid electrolyte fuel cells Received: 4 February lamps 1897) is described. The development of the fundamentals of solid electrolyte fuel cells started

Gleixner, Stacy

375

MoIAC Pre-Audit Form Ways to submit this form  

E-Print Network [OSTI]

of fuels used (e.g. natural gas, propane, fuel oil, other): Volume of fuel used: Cost of fuel: Are fossil: Dr. Bin Wu 2. Print and return this form by mail to: Dr. Bin Wu University of Missouri, University of Missouri-Columbia, MO 65211 3. Return to: Please fill out the following blanks: Company Name

Noble, James S.

376

Standards as InterdependentArtifacts: the Case of the Internet Mo-Han Hsieh  

E-Print Network [OSTI]

Standards as InterdependentArtifacts: the Case of the Internet by Mo-Han Hsieh B.S. Civil Systems Chair, Engineer ystems Division Education Committee #12;1 #12;Standards as Interdependent in Engineering Systems ABSTRACT This thesis has explored a new idea: viewing standards as interdependent

de Weck, Olivier L.

377

Synthesis Gas Conversion to Aliphatic Alcohols: Study of MoS2 catalytic systems  

E-Print Network [OSTI]

by sulfidation of ammonium thiomolybate and acetate salts of co-promoters. Several catalyst formulations were prepared by calcination, followed by doping with alkali promoters. Solid state modifications were made in some cases to dilute the active MoS2 material...

Baksh, Faisal

2010-04-19T23:59:59.000Z

378

Analysis of Molecular Recognition Features (MoRFs) Amrita Mohan1  

E-Print Network [OSTI]

proteomic studies in the last decade revealed that many proteins are either completely disordered or possess­70 residues), loosely structured protein regions within longer, largely disordered sequences that were in MoRF regions prior to the actual binding event. The contribution of intrinsic protein disorder

Radivojac, Predrag

379

M&O Contract 2008-2013, Alliance for Sustainable Energy, LLC  

Office of Energy Efficiency and Renewable Energy (EERE)

Contract No. DE-AC36-08GO28308 M&O Contract 2008-2013, between the Alliance for Sustainable Energy, LLC and the U.S. Department Of Energy. Part I, Section B, Supplies and Services and Price/Costs.

380

HO. F, R~V. MO. 'ATM-l002j A  

E-Print Network [OSTI]

-arm· and thermal battery timer operation if the LRV were exposed to a shade environment for an extended lengthI/ HO. F, R~V. MO. 'ATM-l002j A ' LSPE EXPLOSIVE PACKAGE STOWAGE AND DEPLOYMENT THERMAL CONSTRAINTS a:PA:G:I~=l==~OF __l___ ... -- LSPE EXPLOSIVE PACKAGE STOWAGE AND DEPLOYMENT THERMAL CONSTRAINTS

Rathbun, Julie A.

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Rejection of randomly coinciding events in ZnMoO$_4$ scintillating bolometers  

E-Print Network [OSTI]

Random coincidence of events (particularly from two neutrino double beta decay) could be one of the main sources of background in the search for neutrinoless double beta decay with cryogenic bolometers due to their poor time resolution. Pulse-shape discrimination by using front edge analysis, mean-time and $\\chi^2$ methods was applied to discriminate randomly coinciding events in ZnMoO$_4$ cryogenic scintillating bolometers. These events can be effectively rejected at the level of 99% by the analysis of the heat signals with rise-time of about 14 ms and signal-to-noise ratio of 900, and at the level of 92% by the analysis of the light signals with rise-time of about 3 ms and signal-to-noise ratio of 30, under the requirement to detect 95% of single events. These rejection efficiencies are compatible with extremely low background levels in the region of interest of neutrinoless double beta decay of $^{100}$Mo for enriched ZnMoO$_4$ detectors, of the order of $10^{-4}$ counts/(y keV kg). Pulse-shape parameters have been chosen on the basis of the performance of a real massive ZnMoO$_4$ scintillating bolometer. Importance of the signal-to-noise ratio, correct finding of the signal start and choice of an appropriate sampling frequency are discussed.

D. M. Chernyak; F. A. Danevich; A. Giuliani; M. Mancuso; C. Nones; E. Olivieri; M. Tenconi; V. I. Tretyak

2014-04-04T23:59:59.000Z

382

12MO-2008-03 Gold Nanoparticle Stabilized in Biocompatible Aqueous Media  

E-Print Network [OSTI]

12MO-2008-03 Gold Nanoparticle Stabilized in Biocompatible Aqueous Media The invention provides a method of synthesizing nanoparticles using environmentally benign reducing agents, non-toxic materials main steps in the preparation of metal nanoparticles include using an environmentally benign reducing

Mohanty, Saraju P.

383

BBA Electives: M&O Comparison Compiled 11/11/09  

E-Print Network [OSTI]

1 BBA Electives: M&O Comparison Compiled 11/11/09 University of Michigan ­ Ross School Management to Business Management Management Game Information Resource Management #12;2 Cornell University Leading Teams of North Carolina Chapel Hill ­ Kennan-Flagler Groups and Teams in Organizations Organizational

Michigan, University of

384

Production of Mixed Alcohols from Bio-syngas over Mo-based Catalyst  

Science Journals Connector (OSTI)

A series of Mo-based catalysts prepared by sol-gel method using citric acid as complexant were successfully applied in the high efficient production of mixed alcohols from bio-syngas derived from the biomass gasification. The Cu1Co1Fe1Mo1Zn0.5? 6%K catalyst exhibited a higher activity on the space-time yield of mixed alcohols compared with the other Mo-based catalysts. The carbon conversion significantly increases with rising temperature below 340 °C but the alcohol selectivity has an opposite trend. The maximum mixed alcohols yield derived from biomass gasification is 494.8 g/(kgcatal·h) with the C2+ (C2—C6 higher alcohols) alcohols of 80.4% under the tested conditions. The alcohol distributions are consistent with the Schulz-Flory plots except methanol. In the alcohols products the C2+ alcohols (higher alcohols) dominate with a weight ratio of 70%–85%. The Mo-based catalysts have been characterized by X-ray diffraction and N2 adsorption/desorption. The clean bio-fules of mixed alcohols derived from bio-syngas with higher octane values could be used as transportation fuels or petrol additives.

Song-bai Qiu; Wei-wei Huang; Yong Xu; Lu Liu; Quan-xin Li

2011-01-01T23:59:59.000Z

385

Ultrahigh-pressure structural phase transitions in Cr, Mo, and W  

Science Journals Connector (OSTI)

On the basis of first-principles total-energy calculations, we predict the ultrahigh-pressure destabilization of the bcc structure in the group-VIB elements Cr, Mo, and W through a bcc?hcp phase transition at pressures of about 7.0, 4.2, and 12.5 Mbar, respectively. In Mo and W, a subsequent hcp?fcc transition is also predicted at about 6.2 and 14.4 Mbar, respectively. The overall driving mechanism for these transitions is a continuous sp?d transfer of electrons upon compression, although other factors play an important quantitative role, especially the hard-core-like interaction between the large cores of these elements, which disfavors the bcc structure and serves to lower the bcc?hcp transition pressures. While the actual predicted transition pressures are sensitive to the details of the calculations, the qualitative trends are not, and the bcc?hcp transition in Mo should be within reach of static diamond-anvil-cell experiments. In this regard, we have also calculated accurate 300-K isotherms for bcc Cr, Mo, and W valid up to the 5–6-Mbar pressure range.

John A. Moriarty

1992-02-01T23:59:59.000Z

386

The Physics Programme Of The MoEDAL Experiment At The LHC  

E-Print Network [OSTI]

The MoEDAL experiment at Point 8 of the LHC ring is the seventh and newest LHC experiment. It is dedicated to the search for highly ionizing particle avatars of physics beyond the Standard Model, extending significantly the discovery horizon of the LHC. A MoEDAL discovery would have revolutionary implications for our fundamental understanding of the Microcosm. MoEDAL is an unconventional and largely passive LHC detector comprised of the largest array of Nuclear Track Detector stacks ever deployed at an accelerator, surrounding the intersection region at Point 8 on the LHC ring. Another novel feature is the use of paramagnetic trapping volumes to capture both electrically and magnetically charged highly-ionizing particles predicted in new physics scenarios. It includes an array of TimePix pixel devices for monitoring highly-ionizing particle backgrounds. The main passive elements of the MoEDAL detector do not require a trigger system, electronic readout, or online computerized data acquisition. The aim of this...

Acharya, BKing's Coll. London; Bernabeu, J; Campbell, M; Cecchini, S; Chwastowski, J; De Montigny, M; Derendarz, D; De Roeck, A; Ellis, J R; Fairbairn, M; Felea, D; Frank, M; Frekers, D; Garcia, C; Giacomelli, G; Giorgini, M; Hasegan, D; Hott, T; Jakubek, J; Katre, A; Kim, D-W; King, M G L; Kinoshita, K; Lacarrere, D; Lee, S C; Leroy, C; Margiotta, A; Mauri, N; Mavromatos, N E; Mermod, P; Mitsou, V A; Orava, R; Pasqualini, L; Patrizii, L; Pavalas, G E; Pinfold, J L; Platkevic, M; Popa, V; Pozzato, M; Pospisil, S; Rajantie, A; Sahnoun, Z; Sakellariadou, M; Sarkar, S; Semenoff, G; Sirri, G; Sliwa, K; Soluk, R; Spurio, M; Srivastava, Y N; Staszewski, R; Swain, J; Tenti, M; Togo, V; Trzebinski, M; Tuszynski, J A; Vento, V; Vives, O; Vykydal, Z; Widom, A; Yoon, J H

2014-01-01T23:59:59.000Z

387

Efficient Mn-doped CdS quantum dot sensitized solar cells based on SnO2 microsphere photoelectrodes  

Science Journals Connector (OSTI)

Mn-doped CdS quantum dot sensitized solar cells based on...2...microsphere photoelectrodes are prepared with successive ionic layer adsorption and reaction method. It is found that with Mn-doped CdS quantum dot s...

Lu Liu; Miaoliang Huang; Zhang Lan…

2014-02-01T23:59:59.000Z

388

Exchange interaction mediated ferroelectricity in multiferroic MnTiO{sub 3} with anisotropic orbital hybridization and hole delocalization  

SciTech Connect (OSTI)

We present the orbital structure of MnTiO{sub 3} with polarization dependent x-ray absorption and resonant x-ray emission spectra accompanied with electronic structure calculations. The results clearly indicate a strongly anisotropic O 2p-Mn 3d orbital hybridization whereas the Mn 3d hole state shows a highly delocalized characteristic ascribed to the 3d-4p mixing. The extended Mn 4p orbital could enhance the exchange interaction between Mn (3d)-O (2p)-Mn (3d) leading to an asymmetric charge distribution in Mn-O bonds. The delocalized characteristic of Mn 3d holes is indispensable to the mechanism of spin-dependent-metal-ligand hybridization to explain magnetically induced ferroelectricity.

Chen, S. W.; Fu, S. W.; Lee, J. M.; Lee, J. F.; Pao, C. W.; Ishii, H.; Tsuei, K. D.; Hiraoka, N.; Lu, K. T.; Chen, J. M., E-mail: jeng@phys.nthu.edu.tw, E-mail: xiaolin@uow.edu.au, E-mail: jmchen@nsrrc.org.tw [National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan (China); Lin, P. A. [Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Jeng, H. T., E-mail: jeng@phys.nthu.edu.tw, E-mail: xiaolin@uow.edu.au, E-mail: jmchen@nsrrc.org.tw [Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Institute of Physics, Academia Sinica, Taipei 11529, Taiwan (China); Chen, D. P.; Dou, S. X.; Wang, X. L., E-mail: jeng@phys.nthu.edu.tw, E-mail: xiaolin@uow.edu.au, E-mail: jmchen@nsrrc.org.tw [Institute for Superconducting and Electronic Materials, Australian Institute of Innovative, Materials, University of Wollongong, North Wollongong, NSW 2500 (Australia)

2014-02-24T23:59:59.000Z

389

Surface characterization of LaMnO{sub 3+{delta}} powder synthesized using poly(acrylic acid)  

SciTech Connect (OSTI)

The La/Mn ratio, specific surface area, and catalytic activity for CO oxidation on perovskite-type LaMnO{sub 3+{delta}} synthesized by firing gels with poly(acrylic acid) (PAA) were measured to characterize the LaMnO{sub 3+{delta}} surface. LaMnO{sub 3+{delta}} synthesized by gel firing with low PAA concentration had a large specific surface area, but a Mn ion content lower than that of LaMnO{sub 3+{delta}} synthesized using acetates. Increasing the PAA concentration or the firing temperature improved the surface state of LaMnO{sub 3+{delta}}. At 5 x 10{sup -2}M PAA, the catalytic activity was better than that of LaMnO{sub 3+{delta}} synthesized using acetates.

Taguchi, Hideki; Yoshioka, Hideaki; Nagao, Mahiko [Okayama Univ. (Japan)

1995-05-01T23:59:59.000Z

390

Magnetic properties changes of MnAs thin films irradiated with highly charged ions  

E-Print Network [OSTI]

transition from hexagonal ( phase) to orthorhombic ( phase, MnP type) is accompanied by a ferromagnetic transition that leads to the - phase coexistence over a large range of temperatures (10­45 C [9Magnetic properties changes of MnAs thin films irradiated with highly charged ions M. Trassinellia

391

Biphasic quantum dots of cubic and hexagonal Mn doped CdS; necessity of Rietveld analysis  

Science Journals Connector (OSTI)

Abstract Mn2+ doped CdS quantum dots (QDs) were prepared via a simple chemical synthesis method. Incorporation of Mn ions into CdS \\{QDs\\} was monitored by structural, magnetic and optical spectroscopy analysis. Although the diffraction patterns seemed to be single wurtzite hexagonal structure, analysis revealed biphasic composite of CdS \\{QDs\\} hexagonal wurtzite and cubic zinc blende. The band gap, crystal phase and the morphology of CdS \\{QDs\\} were found not to be greatly affected by Mn2+ doping, however there was an optimal Mn2+ doping content of 10% where the magnetism is maximum. The recorded photoluminescence (PL) emission spectra, excited at 370 nm, depict emission lines in the UV and blue-shift regions. The emission band reveals that the band gap of pure CdS \\{QDs\\} is around 3 eV which is greater than that of bulk CdS (2.42 eV). The band gap of Mn:CdS \\{QDs\\} is almost independent of Mn content (x) and the crystallite size remains almost the same for all values of x. The observed structural, magnetic and optical properties have been explained on the basis of formation of two phases of CdS doped with Mn. This work aims to highlight recent advances in the synthesis of Mn:CdS diluted magnetic semiconductor quantum dots and their wonderful performance.

Zein K. Heiba; Mohamed Bakr Mohamed; N.G. Imam

2015-01-01T23:59:59.000Z

392

Photopumping of a C iii ultraviolet laser by Mn vi line radiation  

Science Journals Connector (OSTI)

Multiple-pass gain is reported at 2177 and 2163 A? in C iii ions in a vacuum-arc discharge, pumped by Mn vi line radiation from a laser-produced Mn plasma. These Be-like uv lasers pumped by resonant photoexcitation are prototypes for soft x-ray lasers in higher-Z, isoelectronic analogs.

Niansheng Qi and Mahadevan Krishnan

1987-11-02T23:59:59.000Z

393

Processing and optimization of bulk La??[x]Ca[x]MnO?[±][delta  

E-Print Network [OSTI]

The following explores the first systematic research conducted at Texas A&M University studying preparation techniques of the bulk La1-x-Cax-Mn-O3"d colossal magnetoresistance (CMR) family. Three sample sets of La1-x-Cax-Mn-O3"d were fabricated...

Ybarra, Ignacio

2013-02-22T23:59:59.000Z

394

Structural, Electrochemical, and Spectroscopic Investigation of Acetate Bridged Dinuclear Tetrakis-Schiff Base Macrocycles of Mn  

E-Print Network [OSTI]

resembling the oxygen-evolving complex (OEC) in photosystem II and dimanganese catalase enzymes, resulting+ and Zn2LAc+ , the two metal centers are bridged by an acetate ligand. [Mn2LAc](ClO4)·(DMF)0.5, [Mn2LAc for substrate molecules bound to redox active metal centers.5-10 In 1970, Robson showed that dinuclear tetrakis

Dinolfo, Peter H.

395

Phase Transition Disappearance in Li1+?Mn2-?O4 Depended on Lithium Excess  

Science Journals Connector (OSTI)

Manganese spinel LiMn2O4 may replace the commercial cathode material, LiCoO2, which is more expensive and toxic. Stoichiometric LiMn2O4 shows a phase transition from cubic (Fd3m) to orthorhombic (Fddd) structure ...

M. Molenda; R. Dziembaj

2002-01-01T23:59:59.000Z

396

Impedance studies of the thin film LiMn2O4/electrolyteinterface  

SciTech Connect (OSTI)

Room-temperature impedance measurements of a thin-film LiMn2O4/LiPF6-EC-DMC interface have been used to identify the spontaneous formation Li2Mn2O4 at the interface at room temperature at voltages of 3.7 and higher. The impedance of the LiMn2O4 films exhibited two time constants: at about 14 kHz and 60 to 200 Hz. The high frequency loop is dependent on film morphology and was attributed to the substrate/oxide interface. The low frequency behavior was dependent on both state-of-charge (SOC) and time at a given SOC. At full charge the impedance in this electrolyte was stable at room temperature over several days. At high lithium contents, film OCV and impedance tended to grow logarithmically with time, with lower rates for lower Mn3+ content in the film. The increased impedance was removed by oxidation of the film to 4.5V vs. Li/Li+. The observations are consistent with a reversible disproportionation of part of the LiMn2O4 into Li2Mn2O4 and a lithium-deficient spinel. With extended constant current cycling part of the Li2Mn2O4 degrades to the Mn2O3 and the process is no longer reversible.

Striebel, Kathryn A.; Sakai, E.; Cairns, Elton J.

2001-04-07T23:59:59.000Z

397

Semimetallic antiferromagnetism in the half-Heusler compound CuMnSb Ruben Weht,2  

E-Print Network [OSTI]

CuMnSb, the first antiferromagnet AFM in the Mn-based class of Heuslers and half-Heuslers that contains several conventional and half metallic ferromagnets, shows a peculiar stability of its magnetic order in high magnetic fields. Density functional based studies reveal an unusual nature of its unstable

Pickett, Warren

398

2013 MnDOT Environmental Stewardship Workshop Transportation Program and Project Development in a Changing Environment  

E-Print Network [OSTI]

in a Changing Environment May 7, 2013 7:30 ­ 8:00 am REGISTRATION and CONTINENTAL BREAKFAST 8:00 ­ 8:15 am of Environmental Stewardship (OES), MnDOT Jon Chiglo, Director, Engineering Services Division, MnDOT 8:15 ­ 8:30 am will review the immediate repair efforts, emergency response coordination, fast track design & letting

Minnesota, University of

399

Tunable White-Light-Emitting Mn-Doped ZnSe Nanocrystals Vijay Kumar Sharma,  

E-Print Network [OSTI]

Tunable White-Light-Emitting Mn-Doped ZnSe Nanocrystals Vijay Kumar Sharma, Burak Guzelturk, Talha report white-light-emitting Mn-doped ZnSe nanocrystals (NCs) that are synthesized using modified orange emission (580 nm), allowed us to achieve excitation wavelength tailorable white-light generation

Demir, Hilmi Volkan

400

Mn-doping-induced itinerant-electron ferromagnetism in Cr2GeC  

Science Journals Connector (OSTI)

The magnetism of the Mn+1AXn phase, Cr2GeC, and its Mn-doped system, (Cr1?xMnx)2GeC (x?0.25), synthesized via a solid state reaction, was investigated systematically. Cr2GeC is in a spin-unpolarized state, but the ferromagnetic band polarization is induced immediately by the Mn doping. The Curie temperature, TC, and the spontaneous moment, ps, increase almost proportionally to the Mn concentration, strongly suggesting that Cr2GeC is located in the vicinity of a ferromagnetic quantum critical point. The strong concentration dependence of peff/ps, where peff is the effective moment in the paramagnetic state, indicates that the ferromagnetism appearing in the Mn-doped Cr2GeC can be classified as a typical itinerant-electron ferromagnetism in a wide range of the degree of electron localization.

Z. Liu; T. Waki; Y. Tabata; H. Nakamura

2014-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Epitaxial growth and ferrimagnetic properties of Mn film on GaSb(100)  

SciTech Connect (OSTI)

We report on the epitaxial stabilization and magnetic properties of Mn films on GaSb(100) using molecular beam epitaxy, a follow-up to our previous work on the growth of Mn films on GaAs(100) [Phys. Rev. B 79, 045309 (2009)]. A strong ferrimagnetic ordering was observed which was attributed to the largely expanded lattice parameter resulting from the lattice mismatch with substrate and the enhanced thermal energy with increasing growth temperature. The observed magnetic moment of 1.16{mu}{sub B}/Mn atom was several times larger than that observed in the Mn/GaAs(100) films due to the lattice constant difference of substrates. The in-plane magnetoresistance behavior demonstrated the magnetic anisotropy that might result from the slightly distorted cubic structure of {alpha}-Mn phase under low-dimensional growth.

Feng Wuwei; Dung, Dang Duc; Shin, Yooleemi; Cho, Sunglae [Department of Physics, University of Ulsan, Ulsan 680-749 (Korea, Republic of); Choi, Jeongyong [IT Convergence Technology Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon 305-700 (Korea, Republic of)

2010-05-15T23:59:59.000Z

402

Giant atomic displacement at a magnetic phase transition in metastable Mn3O4  

SciTech Connect (OSTI)

We present x-ray, neutron scattering, and heat capacity data that reveal a coupled first-order magnetic and structural phase transition of the metastable mixed-valence postspinel compound Mn3O4 at 210 K. Powder neutron diffraction measurements reveal a magnetic structure in which Mn3+ spins align antiferromagnetically along the edge-sharing a axis, with a magnetic propagation vector k = [1/2,0,0]. In contrast, the Mn2+ spins, which are geometrically frustrated, do not order until a much lower temperature. Although the Mn2+ spins do not directly participate in the magnetic phase transition at 210 K, structural refinements reveal a large atomic shift at this phase transition, corresponding to a physical motion of approximately 0.25 angstrom, even though the crystal symmetry remains unchanged. This "giant" response is due to the coupled effect of built-in strain in the metastable postspinel structure with the orbital realignment of the Mn3+ ion.

Hirai, Shigeto [Stanford University; Moreira Dos Santos, Antonio F [ORNL; Shapiro, Max C [Stanford University; Molaison, Jamie J [ORNL; Pradhan, Neelam [ORNL; Guthrie, Malcolm [Carnegie Institution of Washington; Tulk, Christopher A [ORNL; Fisher, Ian R [Stanford University; Mao, Wendy [Stanford University

2013-01-01T23:59:59.000Z

403

Magnetism of NiMn2O4-Fe3O4 spinel interfaces  

SciTech Connect (OSTI)

We investigate the magnetic properties of the isostructural spinel-spinel interface of NiMn{sub 2}O{sub 4}(NMO)-Fe{sub 3}O{sub 4}. Although the magnetic transition temperature of the NMO film is preserved, both bulk and interface sensitive measurements demonstrate that the interface exhibits strong interfacial magnetic coupling up to room temperature. While NMO thin films have a ferrimagnetic transition temperature of 60 K, both NiFe{sub 2}O{sub 4} and MnFe{sub 2}O{sub 4} are ferrimagnetic at room temperature. Our experimental results suggest that these magnetic properties arise from a thin interdiffused region of (Fe,Mn,Ni){sub 3}O{sub 4} at the interface, leading to Mn and Ni magnetic properties similar to those of MnFe{sub 2}O{sub 4} and NiFe{sub 2}O{sub 4}.

Arenholz, Elke; Nelson-Cheeseman, B. B.; Chopdekar, R. V.; Bettinger, J. S.; Arenholz, E.; Suzuki, Y.

2007-09-13T23:59:59.000Z

404

Surface characterization of LaMnO{sub 3+{delta}} powder annealed in air  

SciTech Connect (OSTI)

Perovskite-type LaMnO{sub 3+{delta}}, synthesized using poly(acrylic acid) (PAA), was annealed at 400 and 700{degrees}C in air for 6-54 hr. The crystallite size, the specific surface area, the La/Mn ratio, and the catalytic activity of LaMnO{sub 3+{delta}} were measured to characterize the surface. The specific surface area decreased slightly with increasing annealing time, while the La/Mn ratio of the surface, calculated from the XPS measurements, was independent of annealing time. The catalytic activity for the oxidation of CO increased with annealing. These results suggest that annealing improved the crystallinity (regularity of the ions) of the LaMnO{sub 3+{delta}} surface.

Taguchi, H.; Sugita, A.; Nagao, M. [Okayama Univ. (Japan)] [and others] [Okayama Univ. (Japan); and others

1995-10-01T23:59:59.000Z

405

Electronic structure of the molecule-based magnet MnN,,CN...22 from theory and experiment  

E-Print Network [OSTI]

, Louisiana 70118 Received 27 November 2001; published 24 July 2002 The electronic structure of the Mn-based determined recently by Kurmoo and Kepert.2,3 More recently, x-ray structure of the Mn-based material has beenElectronic structure of the molecule-based magnet MnN,,CN...22 from theory and experiment M. R

Liu, Amy Y.

406

Porous Metal-Organic Framework with Coordinatively Unsaturated MnII Sites:Sorption Properties for Various Gases  

E-Print Network [OSTI]

Porous Metal-Organic Framework with Coordinatively Unsaturated MnII Sites:Sorption Properties solid [Mn(NDC)]n (2), which contains coordinatively unsaturated MnII sites, reveals remarkable sorption capabilities for N2, H2, CO2, and CH4 gases and exhibits type I sorption behavior indicative of permanent

Paik Suh, Myunghyun

407

Allegato "B" DOMANDA DI PARTECIPAZIONE AL CONCORSO DI AMMISSIONE AL  

E-Print Network [OSTI]

IN ROBOTICA, NEUROSCIENZE, NANOTECNOLOGIE E SCOPERTA FARMACI IN COLLABORAZIONE CON LA FONDAZIONE IIT Si prega'ammissione al Corso di Dottorato di Ricerca in Robotica, Neuroscienze, Nanotecnologie e Scoperta Farmaci

Sandini, Giulio

408

(12) United States Patent Harvey et al.  

E-Print Network [OSTI]

(12) United States Patent Harvey et al. (54) ANALYZING RETURN ON INVESTMENT OF ADVERTISING US 2009/0259518 Al Oct. 15,2009 Int. Cl. G06F 17/30 (2006.01) G07G 1/00 (2006.01) U.S. Cl et al. 911980 Block et al. 511982 Eskin et al. 1111982 Barber et al. 711985 Block et al. 111996

Shamos, Michael I.

409

Effect of MoS{sub 2} on hydrogenation storage properties of LiBH{sub 4}  

SciTech Connect (OSTI)

The hydrogen storage properties of LiBH{sub 4} ball milled with 20 wt% MoS{sub 2} have been investigated. It shows that the LiBH{sub 4} doped with MoS{sub 2} exhibits favorable hydrogenation and dehydrogenation properties in terms of decomposition temperature and hydriding/dehydriding reversibility. The sample with MoS{sub 2} starts to release hydrogen at 230 °C and has a decrease of 80 °C in contrast with pristine LiBH{sub 4}. Furthermore, for the second cycle, the LiBH{sub 4} with MoS{sub 2} maintains a reversible hydrogen storage capacity of about 8.0 wt% which is almost identical with the first cycle under 5 MPa at 550 °C. Analyzed by the XRD and the FTIR results, LiBH{sub 4} can be regenerated after re-hydrogenation under a relatively mild condition by adding MoS{sub 2}. The improvement of the hydrogenation and dehydrogenation properties mainly results from the formation of Li{sub 2}S and MoB{sub 2} during ball milling. -- Graphical abstract: Hydrogen absorption curves of LiBH{sub 4} doped with MoS{sub 2} for five cycles at 400 °C. Highlights: • The hydrogen absorption capacity is nearly the same for 5 cycles at 400 °C. • The sample with MoS{sub 2} starts to release hydrogen at 230 °C. • The coexistence of MoB{sub 2} and Li{sub 2}S catalyzes the decomposition of LiBH{sub 4}.

Liang, Dan [College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); Han, Shumin, E-mail: hanshm@ysu.edu.cn [State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 (China); College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); Wang, Jiasheng [College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); Zhang, Wei [State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 (China); College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China); Zhao, Xin; Zhao, Ziyang [College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004 (China)

2014-03-15T23:59:59.000Z

410

AL PRO | Open Energy Information  

Open Energy Info (EERE)

AL PRO AL PRO Jump to: navigation, search Name AL-PRO Place Grossheide, Lower Saxony, Germany Zip 26532 Sector Wind energy Product AL-PRO is an inndependent expert office for wind forecasts, wind potential studies, turbulence inquiries, visualizations as well as sound and shade throw forecasts Coordinates 53.592743°, 7.34313° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":53.592743,"lon":7.34313,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

411

In Memory of Al Cameron  

E-Print Network [OSTI]

Al Cameron, who died recently (October 3, 2005) at 80, was one of the giants in astrophysics. His insights were profound and his interests were wide-ranging. Originally trained as a nuclear physicist, he made major contributions in a number of fields, including nuclear reactions in stars, nucleosynthesis, the abundances of the elements in the Solar System, and the origin of the Solar System and the Moon. In 1957, Cameron and, independently, Burbidge, Burbidge, Fowler and Hoyle, wrote seminal papers on nuclear astrophysics. Most of our current ideas concerning element formation in stars have followed from those two pioneering and historical works. Al also made many contributions in the field of Solar System physics. Particularly noteworthy in this regard was Cameron's work on the formation of the Moon. Al was also a good friend and mentor of young people. Al Cameron will be missed by many in the community both for his scientific contributions and for his friendship.

John J. Cowan; James W. Truran

2006-11-27T23:59:59.000Z

412

Magnetic phase diagram of magnetoelectric LiMnPO4  

SciTech Connect (OSTI)

The nature of the spin-flop (SF) transition in the magnetoelectric quasi-2D Heisenberg system LiMnPO4 is studied in fields applied along the a axis. A refinement of the magnetic structure using neutron diffraction data in the SF phase reveals that the spins reorient from being parallel to the a axis to be nearly along the c axis at magnetic fields between 4 and 4.7 T, depending on temperature. The low-field antiferromagnetic phase boundary is shown to join the spin-flop line tangentially at the so-called bicritical point, where there is a suppression of the ordering temperature. At the bicritical field, we observe an increased intensity of the Lorentz broadened elastic scattering at magnetic Bragg peaks above TN as compared to zero field and 10 T, without an increase in peak width. This suggests an increased density of fluctuations at the bicritical field as compared to zero field.

Toft-Petersen, Rasmus; Andersen, Niels H.; Li, Haifeng; Li, Jiying; Tian, Wei; Budko, Serguei L.; Jensen, Thomas B.S.; Niedermayer, Christof; Laver, Mark; Zaharko, Oksana; Lynn, Jeffrey W.; Vaknin, David

2012-06-14T23:59:59.000Z

413

Dirac cones in artificial structures of 3d transitional-metals doped Mg-Al spinels  

SciTech Connect (OSTI)

Motivated by recent theoretical predications for Dirac cone in two-dimensional (2D) triangular lattice [H. Ishizuka, Phys. Rev. Lett. 109, 237207 (2012)], first-principles studies are performed to predict Dirac cones in artificial structures of 3d transitional-metals (TM?=?Ti, V, Cr, Mn, Fe, Co, Ni, and Cu) doped Mg-Al spinels. In investigated artificial structures, TM dopants substitute specific positions of the B sub-lattice in Mg-Al spinel, and form a quasi-2D triangular lattice in the a-b plane. Calculated results illustrate the existence of the spin-polarized Dirac cones formed in d-wave bands at (around) the K-point in the momentum space. The study provides a promising route for engineering Dirac physics in condensed matters.

Lu, Yuan; Zuo, Xu, E-mail: xzuo@nankai.edu.cn [College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300071 (China); Feng, Min [School of Physics, Nankai University, Tianjin 300071 (China); Shao, Bin [Department of Physics, Tsinghua University, Beijing 100084 (China)

2014-05-07T23:59:59.000Z

414

E-Print Network 3.0 - al suolo al Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DEI CAMBIAMENTI Summary: tradizionali rimboschimenti vincoli al dissodamento aumento delle provvigioni e dei turni riduzione degli... Commissione al Consiglio e al...

415

Interfacial studies of a thin-film Li2Mn4O9 electrode  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Interfacial studies of a thin-film Li2Mn4O9 electrode Interfacial studies of a thin-film Li2Mn4O9 electrode Title Interfacial studies of a thin-film Li2Mn4O9 electrode Publication Type Journal Article Year of Publication 1999 Authors Kostecki, Robert, Fanping Kong, Yoshiaki Matsuo, and Frank R. McLarnon Journal Electrochimica Acta Volume 45 Pagination 225-233 Keywords interfacial films, manganese oxide electrode Abstract A thin-film spinel Li2Mn4O9 electrode was prepared by spin coating onto a Pt substrate. Spectroscopic ellipsometry, X-ray diffraction and current-sensing atomic force microscopy (CSAFM) were used to characterize interfacial processes and film formation at this electrode in the presence of 1.0 M LiPF6, EC:DMC (1:1 by volume) electrolyte. Prolonged exposure of the film to the electrolyte at ambient temperature resulted in spontaneous decomposition of the spinel to λ-MnO2 without disruption of the original structure. The surface of the resulting λ-MnO2 film exhibited no significant change in morphology, however a thin passive electrode surface layer was detected by the CSAFM probe. This electrode surface layer exhibited insulating properties and most likely contained Li2O, a by-product of Li2Mn4O9 decomposition.

416

Ferromagnetism in Mn-Implanted Epitaxially Grown Ge on Si(100)  

SciTech Connect (OSTI)

We have studied ferromagnetism of Mn-implanted epitaxial Ge films on silicon. The Ge films were grown by ultrahigh vacuum chemical vapor deposition using a mixture of germane (GeH{sub 4}) and methylgermane (CH{sub 3}GeH{sub 3}) gases with a carbon concentration of less than 1 at. %, and observed surface rms roughness of 0.5 nm, as measured by atomic force microscopy. Manganese ions were implanted in epitaxial Ge films grown on Si (100) wafers to an effective concentration of 16, 12, 6, and 2 at. %. Superconducting quantum interference device measurements showed that only the three highest Mn concentration samples are ferromagnetic, while the fourth sample, with [Mn] = 2 at. %, is paramagnetic. X-ray absorption spectroscopy and x-ray magnetic circular dichroism measurements indicate that localized Mn moments are ferromagnetically coupled below the Curie temperature. Isothermal annealing of Mn-implanted Ge films with [Mn] = 16 at. % at 300 C for up to 1200 s decreases the magnetization but does not change the Curie temperature, suggesting that the amount of the magnetic phase slowly decreases with time at this anneal temperature. Furthermore, transmission electron microscopy and synchrotron grazing incidence x-ray diffraction experiments show that the Mn-implanted region is amorphous, and we believe that it is this phase that is responsible for the ferromagnetism. This is supported by our observation that high-temperature annealing leads to recrystallization and transformation of the material into a paramagnetic phase.

Guchhait, S.; Jamil, M.; Ohldag, H.; Mehta, A.; Arenholz, E.; Lian, G.; Li Fatou, A.; Ferrer, D. A.; Markert, J. T.; Colombo, L.; Banerjee, S. K.

2011-01-05T23:59:59.000Z

417

Ferrimagnetism and disorder of epitaxial Mn2-xCoxVAl Heusler compound thin films  

SciTech Connect (OSTI)

The quaternary full Heusler compound Mn{sub 2-x}Co{sub x}VAl with x = 1 is predicted to be a half-metallic antiferromagnet. Thin films of the quaternary compounds with x = 0-2 were prepared by dc and RF magnetron co-sputtering on heated MgO (0 0 1) substrates. The magnetic structure was examined by x-ray magnetic circular dichroism and the chemical disorder was characterized by x-ray diffraction. Ferrimagnetic coupling of V to Mn was observed for Mn{sub 2}VAl (x = 0). For x = 0.5, we also found ferrimagnetic order with V and Co antiparallel to Mn. The observed reduced magnetic moments are interpreted with the help of band structure calculations in the coherent potential approximation. Mn{sub 2}VAl is very sensitive to disorder involving Mn, because nearest-neighbour Mn atoms couple antiferromagnetically. Co{sub 2}VAl has B2 order and has reduced magnetization. In the cases with x {ge} 0.9 conventional ferromagnetism was observed, closely related to the atomic disorder in these compounds.

Meinert, Markus; Schmalhorst, Jan-Michael; Reiss, Gunter; Arenholz, Elke

2011-01-29T23:59:59.000Z

418

Structural characterization of terrestrial microbial Mn oxides from Pinal Creek, AZ  

SciTech Connect (OSTI)

The microbial catalysis of Mn(II) oxidation is believed to be a dominant source of abundant sorption- and redox-active Mn oxides in marine, freshwater, and subsurface aquatic environments. In spite of their importance, environmental oxides of known biogenic origin have generally not been characterized in detail from a structural perspective. Hyporheic zone Mn oxide grain coatings at Pinal Creek, Arizona, a metals-contaminated stream, have been identified as being dominantly microbial in origin and are well studied from bulk chemistry and contaminant hydrology perspectives. This site thus presents an excellent opportunity to study the structures of terrestrial microbial Mn oxides in detail. XRD and EXAFS measurements performed in this study indicate that the hydrated Pinal Creek Mn oxide grain coatings are layer-type Mn oxides with dominantly hexagonal or pseudo-hexagonal layer symmetry. XRD and TEM measurements suggest the oxides to be nanoparticulate plates with average dimensions on the order of 11 nm thick x 35 nm diameter, but with individual particles exhibiting thickness as small as a single layer and sheets as wide as 500 nm. The hydrated oxides exhibit a 10-A basal-plane spacing and turbostratic disorder. EXAFS analyses suggest the oxides contain layer Mn(IV) site vacancy defects, and layer Mn(III) is inferred to be present, as deduced from Jahn-Teller distortion of the local structure. The physical geometry and structural details of the coatings suggest formation within microbial biofilms. The biogenic Mnoxides are stable with respect to transformation into thermodynamically more stable phases over a time scale of at least 5 months. The nanoparticulate layered structural motif, also observed in pure culture laboratory studies, appears to be characteristic of biogenic Mn oxides and may explain the common occurrence of this mineral habit in soils and sediments.

Bargar, John; Fuller, Christopher; Marcus, Matthew A.; Brearley, Adrian J.; Perez De la Rosa, M.; Webb, Samuel M.; Caldwell, Wendel A.

2008-03-19T23:59:59.000Z

419

DAFS study of site-specific local structure of Mn in manganese ferrite films.  

SciTech Connect (OSTI)

Manganese ferrite (MnFe{sub 2}O{sub 4}) is a well-known magnetic material widely used in electronics for many years. It is well established that its magnetic behavior is strongly influenced by local structural properties of Mn ions, which are distributed between crystallographically inequivalent tetrahedral and octahedral sites in the unit cell. In order to understand and be able to tune properties of these structures, it is necessary to have detailed site-specific structural information on the system. Here we report on the application of diffraction-anomalous fine structure (DAFS) spectroscopy to resolve site-specific Mn local structures in manganese ferrite films. The DAFS measurements were done at undulator beamline 4-ID-D of the Advanced Photon Source at Argonne National Laboratory. The DAFS spectra (Fig. 1) were measured at several Bragg reflections in the vicinity of the Mn absorption K-edge, having probed separately contributions from tetrahedrally and octahedrally coordinated Mn sites. The DAFS data analysis done with an iterative Kramers-Kroenig algorithm made it possible to solve separately the local structure around different inequivalent Mn sites in the unit cell. The reliability of the data treatment was checked carefully, and it was showed that the site-specific structural parameters obtained with DAFS allow us to describe fluorescence EXAFS spectrum measured independently. Fig. 2 shows individual site contributions to the imaginary part of the resonant scattering amplitude obtained from the treatment of the data of Fig. 1. The analysis of the refined site-specific absorption spectra was done using EXAFS methods based on theoretical standards. We provided direct evidence for the tetrahedral Mn-O bond distance being increased relative to the corresponding Fe-O distance in bulk manganese ferrites. The first coordination shell number was found to be reduced significantly for Mn atoms at these sites. This finding is consistent with the well-known tendency of Mn to be tetrahedrally coordinated in these compounds.

Kravtsov, E.; Haskel, D.; Cady, A.; Yang, A.; Vittoria, C.; Zuo, X.; Harris, V. G.; X-Ray Science Division; Inst. of Metal Physics; Northeastern Univ.; Nankai Univ.

2006-01-01T23:59:59.000Z

420

A combinatorial investigation of sputtered Ta–Al–C thin films  

Science Journals Connector (OSTI)

Abstract We describe a combinatorial experiment investigating the Ta–Al–C material system, conducted with the aim of determining why the tantalum-containing Mn + 1AXn phases have so far proved to be not amenable to thin-film synthesis. Samples were deposited onto (0001) Al2O3 wafers at 850 °C and characterized by X-ray diffraction wafer maps, scanning electron microscopy, and surface optical scattering. Elemental Ta, the binary phases TaC, Ta2C, and TaAl3, and the ternary phases Ta3Al2C and Ta5Al3C were identified. The morphology, phase composition and preferred orientation of the films deposited were found to be highly sensitive to the Ta fraction of the incident flux during deposition. No MAX phase material was observed, indicating that the Ta-containing MAX phases do not form under the deposition conditions investigated. Explanations associated with inadequate coverage of stochiometries, preferential sputtering, and thermodynamic instability have been ruled out. An explanation based on reduced surface diffusion of Ta during growth is proposed. A substantially higher substrate temperature during deposition is likely to be required to synthesize Ta-containing MAX phases.

Mark D. Tucker; Marcela M.M. Bilek; David R. McKenzie

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Quantum interference in exciton-Mn spin interactions in a CdTe semiconductor quantum dot  

E-Print Network [OSTI]

We show theoretically and experimentally the existence of a new quantum interference(QI) effect between the electron-hole interactions and the scattering by a single Mn impurity. Theoretical model, including electron-valence hole correlations, the short and long range exchange interaction of Mn ion with the heavy hole and with electron and anisotropy of the quantum dot, is compared with photoluminescence spectroscopy of CdTe dots with single magnetic ions. We show how design of the electronic levels of a quantum dot enable the design of an exciton, control of the quantum interference and hence engineering of light-Mn interaction.

Trojnar, A; Kadantsev, E; Hawrylak, P; Goryca, M; Kazimierczuk, T; Kossacki, P; Wojnar, P; Potemski, M

2011-01-01T23:59:59.000Z

422

Quantum interference in exciton-Mn spin interactions in a CdTe semiconductor quantum dot  

E-Print Network [OSTI]

We show theoretically and experimentally the existence of a new quantum interference(QI) effect between the electron-hole interactions and the scattering by a single Mn impurity. Theoretical model, including electron-valence hole correlations, the short and long range exchange interaction of Mn ion with the heavy hole and with electron and anisotropy of the quantum dot, is compared with photoluminescence spectroscopy of CdTe dots with single magnetic ions. We show how design of the electronic levels of a quantum dot enable the design of an exciton, control of the quantum interference and hence engineering of light-Mn interaction.

A. Trojnar; M. Korkusinski; E. Kadantsev; P. Hawrylak; M. Goryca; T. Kazimierczuk; P. Kossacki; P. Wojnar; M. Potemski

2011-05-04T23:59:59.000Z

423

A synchroton single crystal X-ray structure determination of (NH4)3Mo4P3O16: A microporous molybdenum phosphate with Mo4O6+4 cubes  

Science Journals Connector (OSTI)

Reaction of MoO3, Mo, (NH4)2HPO4, H3PO4, and H2O in a mole ratio of 1.4:1:3.6:6:120 at 360°C for 16 hr gives a nearly quantitative yield of black cubes of (NH4)3Mo4P3O16 (1). The structure of (1) was solved from data collected on a 30 × 30 × 30 ?m3 crystal at the National Synchrotron Light Source at Brookhaven National Laboratory. The compound is cubic, space group P43m, with a = 7.736(2) Å, and was refined to residuals of R(Rw) = 0.035(0.049). Phosphate (1) is isotypic with Cs3Mo4P3O16 and is related to the iron arsenate mineral pharmacosiderite. Unlike the Cs+ compound, (1) can be rendered microporous by thermal removal of the NH+4 cations to give ammonia with the charge compensating proton remaining behind in the lattice. Water absorption isotherms show the reversible uptake of 5.6 wt% water, which corresponds to over 15 vol% void space in (1) after the NH3 removal. The framework consists of Mo4O6+4 cubes, with six Mo?Mo contacts of 2.570(4) Å, joined together together by (PO4)62 along ?100? to form a 3-D network composed of tetramers of triply edge-sharing Mo-centered octahedra and phosphate groups alternating along all ?100? directions. The windows and cavities in (1) are large enough that the NH+4 cations occupy several different positions in the unit cell.

H.E. King Jr.; Linda A. Mundi; Karl G. Strohmaier; Robert C. Haushalter

1991-01-01T23:59:59.000Z

424

Anomalous Stoichiometry Layered Structure and Magnetic Ordering of the Prussian Blue Analog [NEt4]2MnII3(CN)8  

SciTech Connect (OSTI)

Atypical of Prussian blue structured materials, Mn{sup II} and [NEt{sub 4}]CN react to form [NEt{sub 4}]{sub 2}Mn{sub 3}(CN){sub 8} possessing layers of octahedral [Mn{sup II}(CN){sub 6}]{sup 4-} bonded to two high-spin tetrahedral Mn{sup II} sites.

J Her; P Stephens; C Kareis; J Moore; J Miller

2011-12-31T23:59:59.000Z

425

File:USDA-CE-Production-GIFmaps-MO.pdf | Open Energy Information  

Open Energy Info (EERE)

MO.pdf MO.pdf Jump to: navigation, search File File history File usage Missouri Ethanol Plant Locations Size of this preview: 776 × 600 pixels. Full resolution ‎(1,650 × 1,275 pixels, file size: 377 KB, MIME type: application/pdf) Description Missouri Ethanol Plant Locations Sources United States Department of Agriculture Related Technologies Biomass, Biofuels, Ethanol Creation Date 2010-01-19 Extent State Countries United States UN Region Northern America States Missouri External links http://www.nass.usda.gov/Charts_and_Maps/Ethanol_Plants/ File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 16:16, 27 December 2010 Thumbnail for version as of 16:16, 27 December 2010 1,650 × 1,275 (377 KB) MapBot (Talk | contribs) Automated bot upload

426

Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel [Laser  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Laser Welding of Metals > Laser Welding of Metals > Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel Capabilities Engineering Experimentation Reactor Safety Experimentation Aerosol Experiments System Components Laser Applications Overview Laser Oil & Gas Well Drilling Laser Heat Treatment Laser Welding of Metals On-line Monitoring Laser Beam Delivery Laser Glazing of Railroad Rails High Power Laser Beam Delivery Decontamination and Decommissioning Refractory Alloy Welding Robots Applications Other Facilities Other Capabilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Laser Applications Laboratory Laser Welding of Metals Laser Welding and Post Weld Treatment of Modified 9Cr-1MoVNb Steel Zhiyue Xu Nuclear Engineering Division of Argonne National Laboratory

427

Silicon heterojunction solar cell with passivated hole selective MoO{sub x} contact  

SciTech Connect (OSTI)

We explore substoichiometric molybdenum trioxide (MoO{sub x}, x?MoO{sub x}, we observe a substantial gain in photocurrent of 1.9?mA/cm{sup 2} in the ultraviolet and visible part of the solar spectrum, when compared to a p-type amorphous silicon emitter of a traditional silicon heterojunction cell. Our results emphasize the strong potential for oxides as carrier selective heterojunction partners to inorganic semiconductors.

Battaglia, Corsin; Yin, Xingtian; Zheng, Maxwell; Javey, Ali, E-mail: ajavey@eecs.berkeley.edu [Electrical Engineering and Computer Sciences Department, University of California, Berkeley, California 94720 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Martín de Nicolás, Silvia; De Wolf, Stefaan; Ballif, Christophe [Photovoltaics and Thin Film Electronics Laboratory, Ecole Polytechnique Fédérale de Lausanne, 2000 Neuchâtel (Switzerland)

2014-03-17T23:59:59.000Z

428

Doping dependence of thermoelectric performance in Mo3Sb7: first principles calculations  

SciTech Connect (OSTI)

We study the effects of doping Mo3Sb7 with transition metals (Ni,Fe,Co,Ru) via first principles calculations, including electronic structure, lattice dynamics and Boltzmann transport. We find heavy-mass bands and large, rapidly varying density-of-states, generally favorable for high thermopower, near the band gap of this material. Transport calculations predict large Seebeck coefficients exceeding 300 $\\mu$V/K in a wide temperature range above 500 K (a range suitable for waste heat recovery), if the material can be doped into a semiconducting state. These thermopowers are much higher than those that have previously been experimentally observed; we find that performance exceeding current limits may be found at lower carrier concentration than achieved presently. We also discuss the selection of dopant and the potential thermoelectric performance of optimally doped Mo3Sb7.

Singh, David J [ORNL; Parker, David S [ORNL; Du, Mao-Hua [ORNL

2011-01-01T23:59:59.000Z

429

Two neutrino double ? decay of 100Mo to the 2+ excited state of 100Ru  

Science Journals Connector (OSTI)

The two neutrino double ? decay of 100Mo for 0+?2+ transition is studied in the projected Hartree-Fock-Bogoliubov framework. In our earlier work, the reliability of the intrinsic wave functions has been established for 100Mo and 100Ru by obtaining an overall agreement between the available experimental data and theoretically calculated results for yrast spectra, reduced transition probabilities B(E2:0+?2+), quadrupole moments Q(2+), gyromagnetic factors g(2+), and double Gamow-Teller matrix element for 0+?0+ transition. In the present work, the half-life for 0+?2+ transition T1/22?(0+?2+) has been calculated using the same set of intrinsic wave functions.

K. Chaturvedi, B. M. Dixit, P. K. Rath, and P. K. Raina

2003-06-27T23:59:59.000Z

430

Thermal conductivity and phonon linewidths of monolayer MoS{sub 2} from first principles  

SciTech Connect (OSTI)

Using ab initio calculations, we have investigated the phonon linewidths and the thermal conductivity (?) of monolayer MoS{sub 2}. ? for a typical sample size of 1??m is 83 W/m K at room temperature in the completely rough edge limit, suggesting ? is not a limiting factor for the electronic application of monolayer MoS{sub 2}. ? can be further increased by 30% in 10??m sized samples. Due to strong anharmonicity, isotope enhancement of room temperature ? is only 10% for 1??m sized samples. However, linewidths can be significantly reduced, for instance, for Raman active modes A{sub 1g} and E{sub 2g}{sup 1}, in isotopically pure samples.

Li, Wu, E-mail: wu.li.phys2011@gmail.com; Carrete, J.; Mingo, Natalio, E-mail: natalio.mingo@cea.fr [CEA-Grenoble, 17 Rue des Martyrs, Grenoble 38000 (France)] [CEA-Grenoble, 17 Rue des Martyrs, Grenoble 38000 (France)

2013-12-16T23:59:59.000Z

431

Experimental search for double-{beta} decay of {sup 100}Mo  

SciTech Connect (OSTI)

No evidence for the neutrinoless double-{beta} decay of {sup 100}Mo has been found in a search using a segmented Si(Li) detector with source foils enriched to 97{percent} {sup 100}Mo. From an exposure of 0.2664 mole years, and using Bayesian statistics to calculate confidence levels, we find a 68{percent} lower limit on the half-life for the J{sup p}=0{sup +}{r_arrow}0{sup +} transition of 0.22{times}10{sup 23} yr. The measured half-life of the two neutrino double-{beta} decay is 0.76{sub {minus}0.14}{sup +0.22}{times}10{sup 19} yr. {copyright} {ital 1997} {ital The American Physical Society}

Alston-Garnjost, M.; Dougherty, B.L.; Kenney, R.W.; Tripp, R.D. [Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720 (United States)] [Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720 (United States); Krivicich, J.M.; Nicholson, H.W.; Sutton, C.S. [Mount Holyoke College, South Hadley, Massachusetts 01075 (United States)] [Mount Holyoke College, South Hadley, Massachusetts 01075 (United States); Dieterle, B.D.; Foltz, S.D.; Leavitt, C.P.; Reeder, R.A. [University of New Mexico, Albuquerque, New Mexico 87131 (United States)] [University of New Mexico, Albuquerque, New Mexico 87131 (United States); Baker, J.D.; Caffrey, A.J. [Idaho National Engineering Laboratory, Idaho Falls, Idaho 83415 (United States)] [Idaho National Engineering Laboratory, Idaho Falls, Idaho 83415 (United States)

1997-01-01T23:59:59.000Z

432

Spectroscopy of Double-Beta and Inverse-Beta Decays from 100Mo for Neutrinos  

E-Print Network [OSTI]

Spectroscopic studies of two beta-rays from 100Mo are shown to be of potential interest for investigating both the Majorana neutrino mass by neutrinoless double beta-decay and low energy solar neutrino's by inverse beta-decay. With a multi-ton 100Mo detector, coincidence studies of correlated beta-beta from neutrinoless double beta-decay, together with the large Q value, permit identification of the neutrino-mass term with a sensitivity of ~ 0.03 eV. Correlation studies of the inverse beta and the successive beta-decay of 100Tc, together with the large capture rates for low energy solar neutrino's, make it possible to detect in realtime individual low energy solar neutrino in the same detector.

H. Ejiri; J. Engel; R. Hazama; P. Krastev; N. Kudomi; R. G. H. Robertson

1999-11-20T23:59:59.000Z

433

First spectroscopic investigation of the 4d transition metal monocarbide MoC  

E-Print Network [OSTI]

C simply fills the 2 orbital. Next in the 4d metal-carbide series is another well studied mol- ecule, RhFirst spectroscopic investigation of the 4d transition metal monocarbide MoC Dale J. Brugh transition metal monocarbides, of which only FeC,1­3 CoC,4,5 and NiC Ref. 6 have been studied in detail

Morse, Michael D.

434

Process-dependent electronic states at Mo/hafnium oxide/Si interfaces  

SciTech Connect (OSTI)

The authors have used low energy electron-excited nanoscale depth-resolved cathodoluminescence spectroscopy (DRCLS) to probe the bulk and interface defect states of ultrathin Mo/HfO{sub 2}/Si with eight different process sequences. After atomic layer deposition of 4 nm HfO{sub 2} on Si and an O{sub 2} post-treatment, they deposited 10 nm Mo using either plasma vapor or electron beam deposition, with or without a subsequent 1000 deg. C N{sub 2} anneal and with or without a forming gas anneal. DRCLS revealed pronounced gap state emissions within the ultrathin films and their interfaces with Mo and Si. There are multiple deep level emissions below the {approx}5.9 eV near band edge, including peak emissions at 3.4, 3.5, and 3.9-4.3 eV that can be associated with HfO{sub 2} oxygen vacancies in different charge states predicted theoretically. In addition, states at 2-2.6 eV that resemble known SiO{sub 2}-related nonbonding oxygen hole centers and E{sup '} (positively charged O vacancy) native defects increase with depth within the 4 nm HfO{sub 2} film, suggesting the formation of a Hf silicate at the HfO{sub 2}/Si interface. No metal-specific interface states at the HfO{sub 2}/Mo interface are evident. Furthermore, different process steps produce large changes in these states and for at least one sequence, a dramatic decrease in both types of defects. The differences between process sequences can be understood in terms of known reactions at HfO{sub 2}-Si interfaces.

Walsh, S.; Fang, L.; Schaeffer, J. K.; Brillson, L. J. [Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); Technology Solutions Organization, Freescale Semiconductor, Inc., Austin, Texas 78721 (United States); Department of Electrical and Computer Engineering, Department of Physics and Center for Materials Research, Ohio State University, Columbus, Ohio 43210 (United States)

2007-07-15T23:59:59.000Z

435

Production and Characterization of Atomized U-Mo Powder by the Rotating Electrode Process  

SciTech Connect (OSTI)

In order to produce feedstock fuel powder for irradiation testing, the Idaho National Laboratory has produced a rotating electrode type atomizer to fabricate uranium-molybdenum alloy fuel. Operating with the appropriate parameters, this laboratory-scale atomizer produces fuel in the desired size range for the RERTR dispersion experiments. Analysis of the powder shows a homogenous, rapidly solidified microstructure with fine equiaxed grains. This powder has been used to produce irradiation experiments to further test adjusted matrix U-Mo dispersion fuel.

C.R. Clark; B.R. Muntifering; J.F. Jue

2007-09-01T23:59:59.000Z

436

Excitons in a mirror: Formation of "optical bilayers" using MoS2 monolayers on gold substrates  

E-Print Network [OSTI]

-sandwiched molybdenum atoms by micromechani- cal cleavage, similar to the fabrication of graphene.3 Unlike graphene, Mo applications ranging from logic circuit designs,22�25 photodetectors,26,27 batteries,28,29 and catalytic

Steiner, Ullrich

437

Performance of ZnMoO4 crystal as cryogenic scintillating bolometer to search for double beta decay of molybdenum  

E-Print Network [OSTI]

Zinc molybdate (ZnMoO4) single crystals were grown for the first time by the Czochralski method and their luminescence was measured under X ray excitation in the temperature range 85-400 K. Properties of ZnMoO4 crystal as cryogenic low temperature scintillator were checked for the first time. Radioactive contamination of the ZnMoO4 crystal was estimated as <0.3 mBq/kg (228-Th) and 8 mBq/kg (226-Ra). Thanks to the simultaneous measurement of the scintillation light and the phonon signal, the alpha particles can be discriminated from the gamma/beta interactions, making this compound extremely promising for the search of neutrinoless Double Beta Decay of 100-Mo. We also report on the ability to discriminate the alpha-induced background without the light measurement, thanks to a different shape of the thermal signal that characterizes gamma/beta and alpha particle interactions.

L. Gironi; C. Arnaboldi; J. W. Beeman; O. Cremonesi; F. A. Danevich; V. Ya. Degoda; L. I. Ivleva; L. L. Nagornaya; M. Pavan; G. Pessina; S. Pirro; V. I. Tretyak; I. A. Tupitsyna

2010-10-01T23:59:59.000Z

438

CO and NO Adsorption and Dissociation at the -Mo2C(0001) Surface: A Density Functional Theory Study  

E-Print Network [OSTI]

. Introduction Transition-metal carbides have attracted great interest because of their exciting physical as well as thermal conductivity.3 In addition, -molybdenum carbide ( -Mo2C)-based catalysts exhibit

439

ZrO sub 2 reinforced-MoSi sub 2 matrix composites  

SciTech Connect (OSTI)

ZrO{sub 2} particle-MoSi{sub 2} matrix composites were fabricated by wet processing/hot pressing, using high quality unstabilized, partially stabilized, and fully stabilized ZrO{sub 2} powders. Composite room temperature indentation fracture toughness increased with increasing volume fraction of ZrO{sub 2} reinforcement. Unstabilized ZrO{sub 2} produced the highest composite fracture toughness, 7.8 MPa m{sup {1/2}} as compared to 2.6 MPa m{sup {1/2}} for pure MoSi{sub 2}. Unstabilized ZrO{sub 2} composites exhibited matrix microcracking, and the spontaneous tetragonal-to-monoclinic ZrO{sub 2} phase transformation induced significant plastic deformation in the MoSi{sub 2} matrix. Partially stabilized ZrO{sub 2} produced a lesser extent of composite fracture toughening, possibly as a result of an inhomogeneous ZrO{sub 2} particle distribution and presence of a glassy phase. 13 refs., 6 figs., 1 tab.

Petrovic, J.J.; Honnell, R.E.; Mitchell, T.E. (Los Alamos National Lab., NM (USA)); Wade, R.K. (Arizona Materials Lab., Tucson, AZ (USA)); McClellan, K.J. (Case Western Reserve Univ., Cleveland, OH (USA). Dept. of Materials Science and Engineering)

1991-01-01T23:59:59.000Z

440

Rejection of randomly coinciding events in ZnMoO$_4$ scintillating bolometers  

E-Print Network [OSTI]

Random coincidence of events (particularly from two neutrino double beta decay) could be one of the main sources of background in the search for neutrinoless double beta decay with cryogenic bolometers due to their poor time resolution. Pulse-shape discrimination by using front edge analysis, mean-time and $\\chi^2$ methods was applied to discriminate randomly coinciding events in ZnMoO$_4$ cryogenic scintillating bolometers. These events can be effectively rejected at the level of 99% by the analysis of the heat signals with rise-time of about 14 ms and signal-to-noise ratio of 900, and at the level of 92% by the analysis of the light signals with rise-time of about 3 ms and signal-to-noise ratio of 30, under the requirement to detect 95% of single events. These rejection efficiencies are compatible with extremely low background levels in the region of interest of neutrinoless double beta decay of $^{100}$Mo for enriched ZnMoO$_4$ detectors, of the order of $10^{-4}$ counts/(y keV kg). Pulse-shape parameters ...

Chernyak, D M; Giuliani, A; Mancuso, M; Nones, C; Olivieri, E; Tenconi, M; Tretyak, V I

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Superconducting and structural properties of {delta}-MoC{sub 0.681} cubic molybdenum carbide phase  

SciTech Connect (OSTI)

The superconducting and lattice properties of {delta}-MoC{sub 0.681} were studied by electromagnetic measurements, synchrotron X-ray diffraction, neutron diffraction, and electron diffraction. The superconducting properties (T{sub c}=12 K) of {delta}-MoC{sub 0.681} were well characterized by a weak coupling model. The carbon vacancies present in the host cubic structure were found to be robust, although the material was synthesized from stoichiometric carbon and Mo powder under a high-pressure of 6 GPa. A thermodynamically-stable structure with ordered vacancies did not account for the robust features of {delta}-MoC{sub 0.681} since the vacancies are unlikely to be ordered in long range in the host structure. A model based on inherent phonon instability theoretically predicted for a stoichiometric MoC phase might be responsible for the robust features of {delta}-MoC{sub 0.681}. - Graphical Abstract: The cubic molybdenum carbide shows an excellent superconductivity with robust carbon vacancies. Inherent phonon instability theoretically predicted for a stoichiometric MoC phase might be responsible for the vacancies rather than a thermodynamically-stable structure with vacancies ordering. Highlights: Black-Right-Pointing-Pointer The 12 K superconductivity is well characterized by a weakly coupling model. Black-Right-Pointing-Pointer Carbon vacancies are robust and disordered in the cubic host structure. Black-Right-Pointing-Pointer Inherent phonon instability might be responsible for the robust carbon vacancies in {delta}-MoC{sub 0.681}.

Sathish, C.I. [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Guo, Yanfeng, E-mail: GUO.Yanfeng@nims.go.jp [Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Wang, Xia [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Tsujimoto, Yoshihiro [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Li, Jun [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Zhang, Shoubao [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)] [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Matsushita, Yoshitaka [Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5148 (Japan)] [Synchrotron X-ray Station at SPring-8, National Institute for Materials Science, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5148 (Japan); Shi, Youguo; Tian, Huanfang; Yang, Huaixin; Li, Jianqi [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)] [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Yamaura, Kazunari, E-mail: YAMAURA.Kazunari@nims.go.jp [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan) [Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, Hokkaido 060-0810 (Japan); Superconducting Properties Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)

2012-12-15T23:59:59.000Z

442

Microsoft Word - AL2005-01.doc  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Acquisition Letters (AL) that remain in effect are identified below. All other previously issued ALs have been superseded by a formal rule-making, incorporated into other...

443

Llanto al pie del Monte Carmelo  

E-Print Network [OSTI]

llantos feroces, llorando al pie de aquella fuente te estoySpring, 1988) Monte Carmelo al pie del Hay tiempo que no por

Ferrer, Juan José Prat

1988-01-01T23:59:59.000Z

444

ALS Doctoral Fellowship in Residence  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Doctoral Fellowship in Residence Print Doctoral Fellowship in Residence Print The Advanced Light Source (ALS), a division of Lawrence Berkeley National Laboratory, is a national user facility that generates intense x-ray radiation for scientific and technological research. As the world's first third-generation synchrotron radiation source, the ALS offers outstanding performance in the VUV-soft x-ray energy range and excellent performance into the hard x-ray region. The facility welcomes researchers from universities, industries, and government laboratories around the world. It is funded by the U.S. Department of Energy, Office of Basic Energy Sciences. Applications to Shape the Future of Synchrotron Radiation Science Synchrotron radiation is now an established tool in many areas of physical and biological science. The ALS Doctoral Fellowships will allow beginning researchers to work at the frontier of synchrotron radiation research and to help advance state-of-the-art applications.

445

Modeling of the ALS linac  

SciTech Connect (OSTI)

The ALS injector linac is used for the Beam Test Facility (BTF) and the Damping Experiments when it is available in between the ALS filings. These experiments usually require higher quality beams and a better characterization than is normally required for ALS operations. This paper focuses on the beam emittance, energy tilt, and especially the longitudinal variation of the beam parameters. For instance, the authors want to avoid longitudinal variations at the low beta section of the BTF. On the other hand, a large energy tilt is required for post-acceleration compression of the bunch using an alpha magnet. The PARMELA code was modified to calculate and display longitudinal variations of the emittance ellipse. Using the Microsoft Development Studio under Windows NT environment the code can handle a much larger number of particles than was previously possible.

Kim, C.H. [Lawrence Berkeley Lab., CA (United States). Advanced Light Source Center

1996-08-01T23:59:59.000Z

446

Thermodynamics of the solid solution of hydrogen in ?-titanium alloys: ?-TiMo and ?-TiRe  

Science Journals Connector (OSTI)

The solid solution of hydrogen has been investigated in a series of random ?-TiMo alloys ranging from 0–65 atom % Mo via determination of pressure-composition-temperature relationships; additionally, one (?-TiRe alloy (Ti37 atom % Re) was investigated. The thermodynamic parameters of hydrogen solution were generated from the p-c-T data. The relative partial molar enthalpy at infinite dilution, ?H?Ho, exhibited by ?-TiMo alloys were adjusted to conditions of fixed volume, that of pure ?-Ti. It was found that variations in the resulting ?E?Ho correlated roughly with variations in the electron density of states at the Fermi level. The relative partial molar entropy at infinite dilution was found to vary linearly with Mo content and it is suggested that this trend reflects a blocking of potentially available interstitial sites to hydrogen occupation by Mo atoms at small hydrogen contents. Examination of the excess free energy vs hydrogen content relationships indicates that effects resulting from accommodation of hydrogen electrons by the metal conduction band are significant even at small hydrogen contents in the TiMo alloys; thus, explicit determination of the H-H interaction is not possible in the alloys. By contrast, electronic effects in pure ?-Ti are negligible at small HM and under fixed volume conditions, the H-H interactions in ?-Ti are attractive.

J.F. Lynch; J. Tanaka

1981-01-01T23:59:59.000Z

447

Anomalies in Ultra-High-Field Magnetic Superconductors (Eu1-xSnx)Mo6S8  

Science Journals Connector (OSTI)

Resistive behavior of three series of Chevrel phase, (Eu1-xSnx)Mo6S7, (Eu1-xSnx)Mo6S6.75 and (Eu1-xSnx)0.9Mo6S6.75, is studied in magnetic fields up to 90 kOe at temperatures down to 50 mK. Compounds with x>0.4 are usual ultra-high-field superconductors, while (Eu0.9Sn0.1)0.9Mo6S6.75 is a simple magnetic superconductor. Resistive behavior of the compounds between the above mentioned two sides is complicated, varying with the composition. For example, in (Eu0.8Sn0.2)Mo6S7 the resistance at high fields keeps roughly constant and the temperature dependence of Hc2 defined as a half of the resistance in the normal state is quite different with that defined at the appearance of the resistance. In (Eu0.85Sn0.15)Mo6S7 the superconductivity (=zero resistance) seems to reappear at high fields and at low temperatures.

Masahiro Isino; Norio Kobayashi; Yoshio Muto

1980-01-01T23:59:59.000Z

448

Controlled growth of vertically aligned MoO{sub 3} nanoflakes by plasma assisted paste sublimation process  

SciTech Connect (OSTI)

In this work, we have successfully developed plasma assisted paste sublimation route to deposit vertically aligned MoO{sub 3} nanoflakes (NFs) on nickel coated glass substrate in oxygen plasma ambience with the assistant of Ni thin layer as a catalyst. In our case, sublimation source (Mo strip surface) is resistively heated by flowing current across it. The structural, morphological, and optical properties of NFs have been investigated systematically using x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) with selected area electron diffraction (SAED), High resolution transmission electron microscopy (HRTEM), micro-Raman spectroscopy, and Photoluminescence (PL) spectroscopy. Studies reveal that the presence of oxygen plasma and the nickel thin layer are very essential for the growth of vertically aligned NFs. The observed results divulge that ?-MoO{sub 3} NFs are deposited uniformly on large scale with very high aspect (height/thickness) ratio more than 30 and well aligned along [0 k 0] crystallographic direction where k is even (2, 4, 6). Raman spectrum shows a significant size effect on the vibrational property of MoO{sub 3} nanoflakes. The PL spectrum of MoO{sub 3} NFs was recorded at room temperature and four prominent peaks at 365 nm, 395 nm, 452 nm, and 465 nm corresponding to UV-visible region were observed. In this paper, a three step growth strategy for the formation of MoO{sub 3} NFs has been proposed in detail.

Sharma, Rabindar K.; Reddy, G. B. [Thin Film Laboratory, Physics Department, Indian Institute of Technology Delhi, New Delhi 110016 (India)] [Thin Film Laboratory, Physics Department, Indian Institute of Technology Delhi, New Delhi 110016 (India)

2013-11-14T23:59:59.000Z

449

Structural, Optical and Magnetic Properties of Mn-doped CdS Diluted Magnetic Semiconductor Nanoparticles  

Science Journals Connector (OSTI)

Diluted magnetic CdS:Mn nanoparticles were synthesized by the aqueous...2+) concentrations (x...=7–10 atom %) at room temperature in nitrogen atmosphere and capped with Thiogelycerol. The X-ray diffraction patter...

S. Salimian; S. Farjami Shayesteh

2012-08-01T23:59:59.000Z

450

MnO2-Based Electrochemical Supercapacitors on Flexible Carbon Substrates  

Science Journals Connector (OSTI)

Manganese dioxide films were grown on large area flexible carbon aerogel substrates. Characterization by x-ray diffraction confirmed ?-MnO2 growth. Three types of films were compared as a function of hexamethylen...

Marko J. Tadjer; Michael A. Mastro; José M. Rojo…

2014-04-01T23:59:59.000Z

451

Electrode Characteristics of Individual, MnO2 Coated Carbon Nanotubes  

E-Print Network [OSTI]

MnO2 Coated Carbon Nanotubes Brad L. Corso, Israel Perez,single- walled carbon nanotubes. Li ion cyclic voltammetrysingle-walled carbon nanotubes (SWNTs) that are grown in

Collins, Philip G

2011-01-01T23:59:59.000Z

452

Zeolite-encapsulated Mn(II) complexes as catalysts for selective alkene oxidation  

Science Journals Connector (OSTI)

... , Space-filling molecular model (top and side view) (using the program Hyperchem from Autodesk Inc.) of c/s-[Mn(bpy)2]2+-Y (structure derived from ...

Peter-Paul Knops-Gerrits; Dirk De Vos; Frédéric Thibault-Starzyk; Pierre A. Jacobs

1994-06-16T23:59:59.000Z

453

Synthesis and Luminescence of ZnMgS:Mn2+ Nanoparticles. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of green light emitting diodes. Citation: Zhang J, F Su, W Chen, R Sammynaiken, SL Westcott, DE McCready, G Li, and AG Joly.2005."Synthesis and Luminescence of ZnMgS:Mn2+...

454

LiCoO2-and LiMn2O4-based composite cathode materials  

Science Journals Connector (OSTI)

We have prepared composite cathode materials based on two electrochemically active compounds, LiCoO2 and LiMn2O4..., and investigated their properties. The results indicate that the discharge capacities of all th...

Ya. V. Shatilo; E. V. Makhonina; V. S. Pervov; V. S. Dubasova…

2006-07-01T23:59:59.000Z

455

Understanding and development of combined acoustic and magnetic actuation of Ni?MnGa single crystals  

E-Print Network [OSTI]

Ni-Mn-Ga based ferromagnetic shape memory alloys (FSMAs) have emerged as a promising new class of active materials capable of producing a large (several %) magnetic-field-induced strain (MFIS). FSMAs still have several ...

Techapiesancharoenkij, Ratchatee, 1979-

2007-01-01T23:59:59.000Z

456

Frequency Response of Acoustic-Assisted Ni–Mn–Ga Ferromagnetic- Shape-Memory-Alloy Actuator  

E-Print Network [OSTI]

A prototype of Ni–Mn–Ga based ferromagnetic-shape-memory-alloy (FSMA) actuator was designed and built; an acoustic-assist technique was applied to the actuator to enhance its performance. A piezoelectric stack actuator was ...

Techapiesancharoenkij, Ratchatee

457

Magnetism of NiMn2O4-Fe3O4 spinel interfaces  

E-Print Network [OSTI]

Magnetism of NiMn 2 O 4 –Fe 3 O 4 spinel interfaces B. B.2. Element-specific magnetism of Fe 3 O 4 /NMO interface inin these structures, 6 the magnetism near the isostructural

Nelson-Cheeseman, B. B.

2007-01-01T23:59:59.000Z

458

CSS and Complete Streets Partnering with Mn/DOT for Complete Streets  

E-Print Network [OSTI]

Examples #12;·! Interrelated conditions in which something exists ·! Tying parts together to work Initiative: Seeks to integrate CSS in Mn/DOT as a business model to improve our processes and to balance

Minnesota, University of

459

Rusting Evolution of MnCuP Weathering Steel Submitted to Simulated Industrial Atmospheric Corrosion  

Science Journals Connector (OSTI)

The rusting evolution of MnCuP weathering steel in a simulated industrial atmosphere as a...?-FeOOH. During the second corrosion stage, a compact and protective inner rust layer forms with a higher relative abund...

Long Hao; Sixun Zhang; Junhua Dong; Wei Ke

2012-05-01T23:59:59.000Z

460

Direct production of light olefins from syngas over potassium modified Fe–Mn catalyst  

Science Journals Connector (OSTI)

A series of potassium promoted Fe–Mn catalysts for light olefin synthesis from CO hydrogenation were prepared by the co-precipitation-calcination-impregnation method. The impact of potassium promoter on the te...

Jiang-Bing Li; Hong-Fang Ma; Hai-Tao Zhang…

2014-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Single-molecule magnets assembled from oxime stabilized Mn?III triangles  

E-Print Network [OSTI]

tunneling in the single- molecule magnet Mn-12-acetate.and Brechin, E. K. , A Single-Molecule Magnet with a "Twist"Anisotropy Barrier for a Single- Molecule Magnet, Journal of

Stephenson, Casey Justin

2009-01-01T23:59:59.000Z

462

Modeling and Characterization of the Magnetocaloric Effect in Ni2MnGa Materials  

SciTech Connect (OSTI)

Magnetic shape memory alloys have great promise as magneto-caloric effect refrigerant materials due to their combined magnetic and structural transitions. Computational and experimental research is reported on the Ni2MnGa material system. The magnetic states of this system have been explored using the Wang-Landau statistical approach in conjunction with the Locally Self-consistent Multiple-Scattering (LSMS) method to explore the magnetic states responsible for the magnet-caloric effect in this material. The effects of alloying agents on the transition temperatures of the Ni2MnGa alloy were investigated using differential scanning calorimetry (DSC) and superconducting quantum interference device (SQUID). Neutron scattering experiments were performed to observe the structural and magnetic phase transformations at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) on alloys of Ni-Mn-Ga and Ni-Mn-Ga-Cu-Fe. Data from the observations are discussed in comparison with the computational studies.

Nicholson, Don M [ORNL; Odbadrakh, Khorgolkhuu [ORNL; Rios, Orlando [ORNL; Hodges, Jason P [ORNL; Ludtka, Gerard Michael [ORNL; Porter, Wallace D [ORNL; Sefat, A. S. [Oak Ridge National Laboratory (ORNL); Rusanu, Aurelian [ORNL; Evans III, Boyd Mccutchen [ORNL

2012-01-01T23:59:59.000Z

463

External Electric Field Catalyzed N2O Decomposition on Mn-Embedded Graphene  

Science Journals Connector (OSTI)

External Electric Field Catalyzed N2O Decomposition on Mn-Embedded Graphene ... Key Laboratory of Automobile Materials, Ministry of Education, and Department of Materials Science and Engineering, Jilin University, Changchun 130022, China ...

E. H. Song; J. M. Yan; J. S. Lian; Q. Jiang

2012-09-05T23:59:59.000Z

464

Formation of nano-crystalline todorokite from biogenic Mn Xiong Han Feng a,1  

E-Print Network [OSTI]

Formation of nano-crystalline todorokite from biogenic Mn oxides Xiong Han Feng a,1 , Mengqiang Zhu oxides in the environment. Additionally this method may be a viable biosynthesis route for porous, nano

Sparks, Donald L.

465

Structural and Magnetic Properties of Epitaxial MnSi(111) Thin Films.  

E-Print Network [OSTI]

??MnSi(111) films were grown on Si(111) substrates by solid phase epitaxy (SPE) and molecular beam epitaxy (MBE) to determine their magnetic structures. A lattice mismatch… (more)

Karhu, Eric

2012-01-01T23:59:59.000Z

466

Mn solid solutions in self-assembled Ge/Si (001) quantum dot heterostructures  

SciTech Connect (OSTI)

Heteroepitaxial Ge{sub 0.98}Mn{sub 0.02} quantum dots (QDs) on Si (001) were grown by molecular beam epitaxy. The standard Ge wetting layer-hut-dome-superdome sequence was observed, with no indicators of second phase formation in the surface morphology. We show that Mn forms a dilute solid solution in the Ge quantum dot layer, and a significant fraction of the Mn partitions into a sparse array of buried, Mn-enriched silicide precipitates directly underneath a fraction of the Ge superdomes. The magnetic response from the ultra-thin film indicates the absence of robust room temperature ferromagnetism, perhaps due to anomalous intermixing of Si into the Ge quantum dots.

Kassim, J.; Nolph, C.; Reinke, P.; Floro, J. [Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904 (United States); Jamet, M. [Institut Nanosciences et Cryogenie/SP2M, CEA-UJF, F-38054 Grenoble (France)

2012-12-10T23:59:59.000Z

467

AL2007-08.doc  

Broader source: Energy.gov (indexed) [DOE]

Environmentally Preferable Purchasing Through the Use of the Environmentally Preferable Purchasing Through the Use of the Electronic Product Environmental Assessment Tool (EPEAT) References: Presidential Executive Order 13423 Strengthening Federal Environmental, Energy, and Transportation Management Federal Acquisition Regulations (FAR) Subpart 23.7 Contracting for Environmentally Preferable Products and Services DOE Order 450.1, Chg 2, Environmental Protection Program DOE Acquisition Guide, Chapter 23, Greening the Government - Environmental Considerations in Acquisition Electronic Product Environmental Assessment Tool, IEEE Standard 1680-2006 for Environmental Assessment of Personal Computer Products. When is this Acquisition Letter (AL) Effective? This AL is effective immediately upon issuance.

468

Category:Montgomery, AL | Open Energy Information  

Open Energy Info (EERE)

Montgomery, AL Montgomery, AL Jump to: navigation, search Go Back to PV Economics By Location Media in category "Montgomery, AL" The following 16 files are in this category, out of 16 total. SVFullServiceRestaurant Montgomery AL Alabama Power Co.png SVFullServiceRestauran... 88 KB SVHospital Montgomery AL Alabama Power Co.png SVHospital Montgomery ... 90 KB SVLargeHotel Montgomery AL Alabama Power Co.png SVLargeHotel Montgomer... 86 KB SVLargeOffice Montgomery AL Alabama Power Co.png SVLargeOffice Montgome... 87 KB SVMediumOffice Montgomery AL Alabama Power Co.png SVMediumOffice Montgom... 89 KB SVMidriseApartment Montgomery AL Alabama Power Co.png SVMidriseApartment Mon... 91 KB SVOutPatient Montgomery AL Alabama Power Co.png SVOutPatient Montgomer... 87 KB SVPrimarySchool Montgomery AL Alabama Power Co.png

469

(In,Mn)As quantum dots: Molecular-beam epitaxy and optical properties  

SciTech Connect (OSTI)

Self-assembled (In,Mn)As quantum dots are synthesized by molecular-beam epitaxy on GaAs (001) substrates. The experimental results obtained by transmission electron microscopy show that doping of the central part of the quantum dots with Mn does not bring about the formation of structural defects. The optical properties of the samples, including those in external magnetic fields, are studied.

Bouravleuv, A. D., E-mail: bour@mail.ioffe.ru; Nevedomskii, V. N. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Ubyivovk, E. V. [St. Petersburg State University (Russian Federation)] [St. Petersburg State University (Russian Federation); Sapega, V. F. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Khrebtov, A. I. [St. Petersburg Academic University, Nanotechnology Research and Education Centre (Russian Federation)] [St. Petersburg Academic University, Nanotechnology Research and Education Centre (Russian Federation); Samsonenko, Yu. B.; Cirlin, G. E.; Ustinov, V. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

2013-08-15T23:59:59.000Z

470

DC electrodeposition of Mn–Co alloys on stainless steels for SOFC interconnect application  

SciTech Connect (OSTI)

High conductivity coatings that resist oxide scale growth and reduce chromium evaporation are needed to make stainless steel interconnect materials viable for long-term stable operation of solid oxide fuel cells (SOFC). Mn1.5Co1.5O4 spinel is one of the most promising coatings for interconnect application because of its high conductivity, good chromium retention capability, as well as good CTE match to ferritic stainless steels. Mn–Co electrodeposition followed by oxidization is potentially a low cost method for fabrication of (Mn,Co)3O4 spinel coatings. This work looks at the co-deposition of Mn–Co alloys for this application. As a guide to optimize the deposition process, characterizations of the cathodic reactions and reaction potentials are done using polarization curves. It was found that as cobalt concentration was varied that the alloy composition became richer in cobalt, indicating that the deposition is regular co-deposition process. It was also found that at 0.05M Co concentration in excess gluconate the Mn–Co alloys composition could be tuned by varying the current density. Coatings with Mn–Co around 1:1 could be obtained at a current density of 250 mA/cm2. However, the higher potential increased hydrogen production making the films more porous. Oxidation of the alloy coatings showed that much of the porosities could be eliminated during oxidation. It was found in a number of samples that fully dense coatings where obtained. The composition of the oxidized coating was found to become enriched in Mn, possibly due to the Mn fast diffusion from the substrate.

Wu, Junwei; Jiang, Yinglu; Johnson, Christopher; Liu, Xingbo

2008-03-01T23:59:59.000Z

471

Effect of magnetic field and temperature on the ferroelectric loop in MnWO4  

Science Journals Connector (OSTI)

The ferroelectric properties of MnWO4 single crystal have been investigated. Despite a relatively low remanent polarization, we show that the sample is ferroelectric. The shape of the ferroelectric loop of MnWO4 strongly depends on magnetic field and temperature. While its dependence does not directly correlate with the magnetocapacitance effect before the paraelectric transition, the effect of magnetic field on the ferroelectric polarization loop supports magnetoelectric coupling.

Bohdan Kundys; Charles Simon; Christine Martin

2008-05-12T23:59:59.000Z

472

A practical grinding-assisted dry synthesis of nanocrystalline NiMoO{sub 4} polymorphs for oxidative dehydrogenation of propane  

SciTech Connect (OSTI)

A practical two-stage reactive grinding-assisted pathway waste-free and cost-effective for the synthesis of NiMoO{sub 4} has been successfully developed. It was demonstrated that proper design in synthetic strategy for grinding plays a crucial role in determining the ultimate polymorph of NiMoO{sub 4}. Specifically, direct grinding (DG) of MoO{sub 3} and NiO rendered {alpha}-NiMoO{sub 4} after annealing, whereas sequential grinding (SG) of the two independently pre-ground oxides followed by annealing generated {beta}-NiMoO{sub 4} solid solution. Characterizations in terms of Raman and X-ray diffraction suggest the creation of {beta}-NiMoO{sub 4} precursor in the latter alternative is the key aspect for the formation of {beta}-NiMoO{sub 4}. The DG-derived {alpha}-NiMoO{sub 4} tested by oxidative dehydrogenation of propane exhibited superior activity in contrast to its analog synthesized via conventional coprecipitation. It is suggested that the favorable chemical composition facilely obtained via grinding in contrast to that by coprecipitation was essential for achieving a more selective production of propylene. - Graphical Abstract: Grinding-assisted synthesis of NiMoO{sub 4} offers higher and more reproducible activities in contrast to coprecipitation for oxidative dehydrogenation of propane, and both {alpha}- and {beta}-NiMoO{sub 4} can be synthesized. Highlights: Black-Right-Pointing-Pointer NiMoO{sub 4} was prepared through grinding-assisted pathway. Black-Right-Pointing-Pointer Direct/sequential grinding rendered {alpha}-, {beta}-NiMoO{sub 4}, respectively. Black-Right-Pointing-Pointer Grinding-derived {alpha}-NiMoO{sub 4} showed high and reproducible activity for oxidative dehydrogenation of propane.

Chen Miao, E-mail: chenmiao@sinochem.com [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China); Zhejiang Chemical Industry Research Institute, Hangzhou 310023 (China); Wu Jialing; Liu Yongmei [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China); Cao Yong, E-mail: yongcao@fudan.edu.cn [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China); Guo Li [Zhejiang Chemical Industry Research Institute, Hangzhou 310023 (China); He Heyong; Fan Kangnian [Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Department of Chemistry, Fudan University, Shanghai 200433 (China)

2011-12-15T23:59:59.000Z

473

Mn, Fe, Zn and As speciation in a fast-growing ferromanganese marine nodule  

SciTech Connect (OSTI)

The speciation of Mn, Fe, As and Zn in a fast-growing (0.02mm/yr), shallow-marine ferromanganese nodule has been examined by micro X-ray fluorescence, micro X-ray diffraction, and micro X-ray absorption spectroscopy. This nodule exhibits alternating Fe-rich and Mn-rich layers reflecting redox variations in water chemistry. Fe occurs as two-line ferrihydrite. The As is strictly associated with Fe and is mostly pentavalent, with an environment similar to that of As sorbed on or coprecipitated with synthetic ferrihydrite. The Mn is in the form of turbostratic birnessite with {approx} 10 percent trivalent manganese in the layers and probably {approx} 8 percent corner-sharing metal octahedra in the interlayers. The Zn is enriched on the rim of the nodule, associated with Mn. The Zn is completely (>90 percent) tetrahedrally coordinated and sorbed in the interlayers of birnessite on vacant layer Mn sites. The Zn and Mn species are similar to ones found in soils, suggesting common structural principles, despite the differing formation conditions in these systems.

Marcus, Matthew A.; Manceau, Alain; Kersten, Michael

2004-04-01T23:59:59.000Z

474

Magnetic properties and loss separation in iron-silicone-MnZn ferrite soft magnetic composites  

SciTech Connect (OSTI)

This paper investigates the magnetic and structural properties of iron-based soft magnetic composites coated with silicone-MnZn ferrite hybrid. The organic silicone resin was added to improve the flexibility of the insulated iron powder and causes better adhesion between particles to increase the mechanical properties. Scanning electron microscopy and distribution maps show that the iron particle surface is covered with a thin layer of silicone-MnZn ferrite. Silicone-MnZn ferrite coated samples have higher permeability when compared with the non-magnetic silicone resin coated compacts. The real part of permeability increases by 34.18% when compared with the silicone resin coated samples at 20 kHz. In this work, a formula for calculating the total loss component by loss separation method is presented and finally the different parts of total losses are calculated. The results show that the eddy current loss coefficient is close to each other for the silicone-MnZn ferrite, silicone resin and MnZn ferrite coated samples (0.0078MnZn ferrite coated sample (k{sub 2} =1.4058) in comparison with other samples.

Wu, Shen; Sun, Aizhi; Xu, Wenhuan; Zou, Chao; Yang, Jun; Dong, Juan [School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing (China)

2013-12-16T23:59:59.000Z

475

Electronic structure and ferromagnetism of Mn-doped group-IV semiconductors  

Science Journals Connector (OSTI)

Accurate ab initio full-potential augmented plane wave (FLAPW) electronic calculations within density functional theory in both local density and generalized gradient approximations have been performed for MnxGe1-x and MnxSi1-x ordered alloys, focusing on their electronic and magnetic properties as a function of the host semiconducting matrix (i.e., Si vs Ge), the Mn concentration, and the spin magnetic alignment (i.e., ferromagnetic vs antiferromagnetic). As expected, Mn is found to be a source of holes and localized magnetic moments of about 3?B/Mn. The results show that irrespective of the Mn content, the Ge-based systems are very close to half-metallicity, whereas the Si-based structures just miss the half-metallic behavior due to the crossing of the Fermi level by the lowest conduction bands. Moreover, the ferromagnetic alignment is favored compared to the antiferromagnetic one, with its stabilization generally increasing with Mn content; this is in agreement with recent experimental findings for MnGe systems and supports the view that this class of ferromagnetic semiconductors constitute basic spintronic materials.

A. Stroppa; S. Picozzi; A. Continenza; A. J. Freeman

2003-10-08T23:59:59.000Z

476

Transformer Abdullah Al-Otaibi  

E-Print Network [OSTI]

Transformer Abdullah Al-Otaibi ID#242374 Section#2 Abstract- this is a brief description for transformer and how it works. I. DEFINITION A transformer is a device that transfers electrical energy from of the transformer in 1831. The transformer is used by Faraday only to demonstrate the principle of electromagnetic

Masoudi, Husain M.

477

Influence of dislocation-solute interactions on the mechanical properties of zirconium-doped NiAl  

SciTech Connect (OSTI)

Atom probe field ion microscopy (APFIM) has been used to characterize NiAl microalloyed with molybdenum and zirconium. Field ion images and atom probe analyses revealed segregation of zirconium to dislocation strain fields and ribbon-like morphological features that are probably related to dislocations. These results provide direct experimental evidence in support of the suggestion that the tremendous increase in the ductile-to-brittle transition temperature (DBTI) in zirconium-doped NiAl is due to pinning of dislocations by zirconium atoms. Atom probe analyses also revealed segregation of zirconium to grain boundaries. This result is consistent with the change from an intergranular fracture mode in undoped NiAl to a mixture of intergranular and transgranular fracture mode in zirconium-doped NiAl. The NiAl matrix was severely depleted of the solutes molybdenum and zirconium. Small Mo-rich precipitates, detected in the matrix and grain boundaries, are likely to contribute to the significant increase in the room-temperature yield stress of microalloyed NiAl through a precipitation hardening mechanism.

Jayaram, R. [Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; Miller, M.K. [Oak Ridge National Lab., TN (United States)

1995-03-01T23:59:59.000Z

478

(12) United States Patent Reardan et al.  

E-Print Network [OSTI]

(12) United States Patent Reardan et al. (54) SENSITIVE DRUG DISTRIBUTION SYSTEM AND METHOD (75 2004/0117205 Al Jun. 17,2004 (51) Int. Cl. G06Q 10/00 (2006.01) (52) U.S. Cl/231 4,976,351 A 1211990 Mangini et al. 5,737,539 A * 411998 Edelson et al. ................. 705/3 5

Shamos, Michael I.

479

(12) United States Patent Likourezos et al.  

E-Print Network [OSTI]

(12) United States Patent Likourezos et al. (54) SYSTEM AND METHOD FOR AUTOMATICALLY EFFECTING Publication Data US 2002/0095376 Al Jul. 18, 2002 Related U.S. Application Data Continuation Altman et al. ................ 705/36 5,715,314 A 211998 Payne et al. 5,794,219 A 811998 Brown 5

Shamos, Michael I.

480

Microsoft Word - AL2007-01.doc  

Broader source: Energy.gov (indexed) [DOE]

AL-2007-01 (12/15/06) AL-2007-01 (12/15/06) 1 Department of Energy No. AL-2007-01 Acquisition Regulation Date 12/15/06 ACQUISITION LETTER This Acquisition Letter is issued by the Procurement Executive of DOE. Subject: Implementation of Functional Accountability Requirements References: Secretary of Energy Memorandum dated May 23, 2006, Functional Accountability When is this Acquisition Letter (AL) Effective? This AL, which includes the attached OPAM Implementation Plan and DOE Corporate Implementation Plan, are effective immediately. When does this AL Expire? This AL remains in effect until superseded or canceled and is subject to change as needed. Who is the Point of Contact?

Note: This page contains sample records for the topic "al mo mn" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


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