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1

Trending: Metal Oxo Bonds  

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

including materials science, chemistry, and biology. Highly covalent metal-oxygen multiple bonds (metal oxos) are the building blocks of metal oxides and have a bearing...

2

Trending: Metal Oxo Bonds  

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

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3

Trending: Metal Oxo Bonds  

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

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4

Trending: Metal Oxo Bonds  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortal Hydrogen and Fuel CellTrending: Metal

5

J. Phys. Chem. 1988, 92, 2109-2115 2109 Early-versus Late-Transition-Metal-Oxo Bonds: The Electronlc Structure of VO' and  

E-Print Network [OSTI]

O' are also reported. These results indicate fundamental differences in the nature of the metal-oxo bond olefins and al- cohols to epoxides,diols, aldehydes, ketones, and carboxylic acidsS6 Late transition, excitation energies, and ionization potential~,~g>~and gas-phase studies of their chemical rea

Goddard III, William A.

6

Trending: Metal Oxo Bonds  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortal Hydrogen and Fuel Cell

7

Trending: Metal Oxo Bonds  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortal Hydrogen and Fuel CellTrending:

8

Trending: Metal Oxo Bonds  

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

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9

Trending: Metal Oxo Bonds  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortal Hydrogen and Fuel

10

A Highly Reactive Mononuclear Non-Heme Manganese(IV)?Oxo Complex That Can Activate the Strong C?H Bonds of Alkanes  

SciTech Connect (OSTI)

A mononuclear non-heme manganese(IV)-oxo complex has been synthesized and characterized using various spectroscopic methods. The Mn(IV)-oxo complex shows high reactivity in oxidation reactions, such as C-H bond activation, oxidations of olefins, alcohols, sulfides, and aromatic compounds, and N-dealkylation. In C-H bond activation, the Mn(IV)-oxo complex can activate C-H bonds as strong as those in cyclohexane. It is proposed that C-H bond activation by the non-heme Mn(IV)-oxo complex does not occur via an oxygen-rebound mechanism. The electrophilic character of the non-heme Mn(IV)-oxo complex is demonstrated by a large negative {rho} value of {approx}4.4 in the oxidation of para-substituted thioanisoles.

Wu, Xiujuan; Seo, Mi Sook; Davis, Katherine M.; Lee, Yong-Min; Chen, Junying; Cho, Kyung-Bin; Pushkar, Yulia N.; Nam, Wonwoo (Ewha); (Purdue)

2012-03-15T23:59:59.000Z

11

X-ray Absorption Spectroscopy and Density Functional Theory Studies of [(H3buea)FeIII-X]n1 (X= S2-, O2-,OH-): Comparison of Bonding and Hydrogen Bonding in Oxo and Sulfido Complexes  

SciTech Connect (OSTI)

Iron L-edge, iron K-edge, and sulfur K-edge X-ray absorption spectroscopy was performed on a series of compounds [Fe{sup III}H{sub 3}buea(X)]{sup n-} (X = S{sup 2-}, O{sup 2-}, OH{sup -}). The experimentally determined electronic structures were used to correlate to density functional theory calculations. Calculations supported by the data were then used to compare the metal-ligand bonding and to evaluate the effects of H-bonding in Fe{sup III}-O vs Fe{sup III-}S complexes. It was found that the Fe{sup III-}O bond, while less covalent, is stronger than the FeIII-S bond. This dominantly reflects the larger ionic contribution to the Fe{sup III-}O bond. The H-bonding energy (for three H-bonds) was estimated to be -25 kcal/mol for the oxo as compared to -12 kcal/mol for the sulfide ligand. This difference is attributed to the larger charge density on the oxo ligand resulting from the lower covalency of the Fe-O bond. These results were extended to consider an Fe{sup IV-}O complex with the same ligand environment. It was found that hydrogen bonding to Fe{sup IV-}O is less energetically favorable than that to Fe{sup III-}O, which reflects the highly covalent nature of the Fe{sup IV-}O bond.

Dey, Abhishek; Hocking, Rosalie K.; /Stanford U., Chem. Dept.; Larsen, Peter; Borovik, Andrew S.; /Kansas U.; Hodgson, Keith O.; Hedman, Britt; Solomon, Edward I.; /SLAC,

2006-09-27T23:59:59.000Z

12

Carbon?Oxygen Bond Forming Mechanisms in Rhenium Oxo-Alkyl Complexes  

SciTech Connect (OSTI)

Three C?X bond formation mechanisms observed in the oxidation of (HBpz{sub 3})ReO(R)(OTf) [HBpz{sub 3} = hydrotris(1-pyrazolyl)borate; R = Me, Et, and iPr; OTf = OSO{sub 2}CF{sub 3}] by dimethyl sulfoxide (DMSO) were investigated using quantum mechanics (M06//B3LYP DFT) combined with solvation (using the PBF Poisson?Boltzmann polarizable continuum solvent model). For R = Et we find the alkyl group is activated through ?-hydrogen abstraction by external base OTf{sup ?} with a free energy barrier of only 12.0 kcal/mol, leading to formation of acetaldehyde. Alternatively, ethyl migration across the M?O bond (leading to the formation of acetaldehyde and ethanol) poses a free energy barrier of 22.1 kcal/mol, and the previously proposed ?-hydrogen transfer to oxo (a 2+2 forbidden reaction) poses a barrier of 44.9 kcal/mol. The rate-determining step to formation of the final product acetaldehyde is an oxygen atom transfer from DMSO to the ethylidene, with a free energy barrier of 15.3 kcal/mol. When R = iPr, the alkyl 1,2-migration pathway becomes the more favorable pathway (both kinetically and thermodynamically), with a free energy barrier (?G{sup ?} = 11.8 kcal/mol) lower than ?-hydrogen abstraction by OTf{sup ?} (?G{sup ?} = 13.5 kcal/mol). This suggests the feasibility of utilizing this type of migration to functionalize M?R to M?OR. We also considered the nucleophilic attack of water and ammonia on the Re-ethylidene ?-carbon as a means of recovering two-electron-oxidized products from an alkane oxidation. Nucleophilic attack (with internal deprotonation of the nucleophile) is exothermic. However, the subsequent protonolysis of the Re?alkyl bond (to liberate an alcohol or amine) poses a barrier of 37.0 or 42.4 kcal/mol, respectively. Where comparisons are possible, calculated free energies agree very well with experimental measurements.

Cheng, Mu-Jeng; Nielsen, Robert J; Ahlquist, Marten; Goddard, William A

2010-01-01T23:59:59.000Z

13

Method of bonding metals to ceramics  

DOE Patents [OSTI]

A ceramic or glass having a thin layer of silver, gold or alloys thereof at the surface thereof is disclosed. A first metal is bonded to the thin layer and a second metal is bonded to the first metal. The first metal is selected from the class consisting of In, Ga, Sn, Bi, Zn, Cd, Pb, Tl and alloys thereof, and the second metal is selected from the class consisting of Cu, Al, Pb, Au and alloys thereof. 3 figures.

Maroni, V.A.

1991-04-23T23:59:59.000Z

14

Covalency in Metal-Oxygen Multiple Bonds Evaluated Using Oxygen...  

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

Covalency in Metal-Oxygen Multiple Bonds Evaluated Using Oxygen K-edge Spectroscopy and Electronic Structure Theory . Covalency in Metal-Oxygen Multiple Bonds Evaluated Using...

15

Covalency in Metal-Oxygen Multiple Bonds Evaluated Using Oxygen K-edge Spectroscopy and Electronic Structure Theory  

SciTech Connect (OSTI)

Advancing theories of how metal oxygen bonding influences metal oxo properties can expose new avenues for innovation in materials science, catalysis, and biochemistry. Historically, spectroscopic analyses of the transition metal peroxyanions, MO4x-, have formed the basis for new M O bonding theories. Herein, relative changes in M O orbital mixing in MO42- (M = Cr, Mo, W) and MO41- (M = Mn, Tc, Re) are evaluated for the first time by non-resonant inelastic X-ray scattering, X-ray absorption spectroscopy using fluorescence and transmission (via a scanning transmission X-ray microscope), and linear-response density functional theory. The results suggest that moving from Group 6 to Group 7 or down the triads increases M O e () mixing. Meanwhile, t2 mixing ( + ) remains relatively constant within the same Group. These unexpected changes in frontier orbital energy and composition are evaluated in terms of periodic trends in d orbital energy and radial extension.

Minasian, Stefan G.; Keith, Jason M.; Batista, Enrique R.; Boland, Kevin S.; Bradley, Joseph A.; Daly, Scott R.; Kozimor, Stosh A.; Lukens, Wayne W.; Martin, Richard L.; Nordlund, Dennis; Seidler, Gerald T.; Shuh, David K.; Sokaras, Dimosthenis; Tyliszczak, Tolek; Wagner, Gregory L.; Weng, Tsu-Chein; Yang, Ping

2014-01-01T23:59:59.000Z

16

Thermal barrier and overlay coating systems comprising composite metal/metal oxide bond coating layers  

DOE Patents [OSTI]

The present invention generally describes multilayer coating systems comprising a composite metal/metal oxide bond coat layer. The coating systems may be used in gas turbines.

Goedjen, John G. (Oviedo, FL); Sabol, Stephen M. (Orlando, FL); Sloan, Kelly M. (Longwood, FL); Vance, Steven J. (Orlando, FL)

2001-01-01T23:59:59.000Z

17

Adhesion, stability, and bonding at metal/metal-carbide interfaces: Al/WC Donald J. Siegel  

E-Print Network [OSTI]

of adhesion between metals and transition metal carbides/nitrides based on Density Functional Theory(DFT)[14Adhesion, stability, and bonding at metal/metal-carbide interfaces: Al/WC Donald J. Siegel the nature of metal/carbide bonding. Based on the surface and interfacial free energies, we find that both

Adams, James B

18

Metal-bonded, carbon fiber-reinforced composites  

DOE Patents [OSTI]

Metal bonded carbon fiber-reinforced composites are disclosed in which the metal and the composite are strongly bound by (1) providing a matrix-depleted zone in the composite of sufficient depth to provide a binding site for the metal to be bonded and then (2) infiltrating the metal into the matrix-free zone to fill a substantial portion of the zone and also provide a surface layer of metal, thereby forming a strong bond between the composite and the metal. The invention also includes the metal-bound composite itself, as well as the provision of a coating over the metal for high-temperature performance or for joining to other such composites or to other substrates. 2 figs.

Sastri, S.A.; Pemsler, J.P.; Cooke, R.A.; Litchfield, J.K.; Smith, M.B.

1996-03-05T23:59:59.000Z

19

Metal-bonded, carbon fiber-reinforced composites  

DOE Patents [OSTI]

Metal bonded carbon fiber-reinforced composites are disclosed in which the metal and the composite are strongly bound by (1) providing a matrix-depleted zone in the composite of sufficient depth to provide a binding site for the metal to be bonded and then (2) infiltrating the metal into the matrix-free zone to fill a substantial portion of the zone and also provide a surface layer of metal, thereby forming a strong bond between the composite and the metal. The invention also includes the metal-bound composite itself, as well as the provision of a coating over the metal for high-temperature performance or for joining to other such composites or to other substrates.

Sastri, Suri A. (Lexington, MA); Pemsler, J. Paul (Lexington, MA); Cooke, Richard A. (Framingham, MA); Litchfield, John K. (Bedford, MA); Smith, Mark B. (Ipswich, MA)

1996-01-01T23:59:59.000Z

20

Bonding Low-density Nanoporous Metal Foams Using Sputtered Solder  

SciTech Connect (OSTI)

A method has been developed for bonding low-density nanoporous metal foam components to a substrate using solder that is sputtered onto the surfaces. Metal foams have unusual properties that make them excellent choices for many applications, and as technologies for processing these materials are evolving, their use in industry is increasing dramatically. Metal foams are lightweight and have advantageous dynamic properties, which make them excellent choices for many structural applications. They also provide good acoustic damping, low thermal conductivity, and excellent energy absorption characteristics. Therefore, these materials are commonly used in the automotive, aerospace, construction, and biomedical industries. The synthesis of nanoporous metal foams with a cell size of less then 1 {micro}m is an emerging technology that is expected to lead to widespread application of metal foams in microdevices, such as sensors and actuators. One of the challenges to manufacturing components from metal foams is that they can be difficult to attach to other structures without degrading their properties. For example, traditional liquid adhesives cannot be used because they are absorbed into foams. The problem of bonding or joining can be particularly difficult for small-scale devices made from nanoporous foam, due to the requirement for a thin bond layer. The current study addresses this problem and develops a method of soldering a nanoporous metal foam to a substrate with a bond thickness of less than 2 {micro}m. There are many applications that require micro-scale metal foams precisely bonded to substrates. This study was motivated by a physics experiment that used a laser to drive a shock wave through an aluminum foil and into a copper foam, in order to determine the speed of the shock in the copper foam. To avoid disturbing the shock, the interface between the copper foam and the aluminum substrate had to be as thin as possible. There are many other applications that could benefit from the bonding technology developed in this study, such as small-scale lightweight structural members, high-strength thermal insulating layers for electronics, and micro-scale mechanical dampers, to name but a few. Each of these applications requires one or more small metal foam components precisely bonded to a substrate. Several methods for bonding metal foam components have been developed by previous researchers. Macroscopic metal foam parts have been successfully bonded by laser welding to create T-sections and butt joints. Ultrasonic welding has been used to join aluminum sheet metal to aluminum foam for structural applications. These methods work well for bonding large foam components, but reducing these methods to a smaller length scale would be challenging. One method that has shown great potential for bonding layers of metal foams to substrates is a brazing process that uses a sputter-deposited interface material. Shirzadi et al.[9] have demonstrated bonds between stainless steel foam and a stainless steel substrate using a layer of copper-titanium filler metal that is sputtered onto the interface surfaces. The foam pieces that they bonded were approximately 10 mm in diameter and 10 mm thick with a cell size of approximately 200 {micro}m. After depositing the filler material, pressing the materials together, and heating them with an induction heater, bonds were achieved without causing significant damage to the foam. The current study also uses a sputter-deposited interface material to bond foam to a substrate. However, in contrast to previous work, the current study examines bonding microscale pieces of fragile nanoporous metal foam. In this study, a method is developed to bond a thin sheet of fragile, low-density nanoporous copper foam to an aluminum foil substrate of thickness 40 {micro}m. By sputter depositing an indium-silver alloy onto the foam and the substrate, a solder joint with a thickness of less than 2 {micro}m was achieved.

Bono, M; Cervantes, O; Akaba, C; Hamza, A; Foreman, R; Teslich, N

2007-08-21T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

A Mild C-O Bond Formation Catalyzed by a Rhenium-Oxo Complex Benjamin D. Sherry, Alexander T. Radosevich, and F. Dean Toste*  

E-Print Network [OSTI]

, such as a halide or pseudohalide.1,2 For example, formation of sp3-C-O bonds by transition-metal-catalyzed allylic etherification requires the generation of copper3a,b or zinc3c alkoxides as nucleophiles and allylic esters, such as acetals (entry 15), ketals (entry 5), and t-butylcarbamates (entries 7, 8), were not cleaved

Toste, Dean

22

Dinuclear Metalloradicals Featuring Unsupported Metal-Metal Bonds  

SciTech Connect (OSTI)

Unlike the very labile, unobservable radical cations [{l_brace}CpM(CO){sub 3}{r_brace}{sub 2}]{sup {sm_bullet}+} (M = W, Mo), derivatives [{l_brace}CpM(CO){sub 2}(PMe{sub 3}){r_brace}{sub 2}]{sup {sm_bullet}+} are stable enough to be isolated and characterized. Experimental and theoretical studies show that the shortened M-M bonds are of order 1 1/2, and that they are not supported by bridging ligands. The unpaired electron is fully delocalized, with a spin density of ca. 45% on each metal atom. We thank the U.S. Department of Energy (DOE), Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Biosciences and Geosciences for support of this work. Pacific Northwest National Laboratory (PNNL) is a multiprogram national laboratory operated for DOE by Battelle. The EPR and computational studies were performed using EMSL, a national scientific user facility sponsored by the DOE's Office of Biological and Environmental Research and located at PNNL. We thank Dr. Charles Windisch for access to his UV-Vis-NIR spectrometer.

van der Eide, Edwin F.; Yang, Ping; Walter, Eric D.; Liu, Tianbiao L.; Bullock, R. Morris

2012-08-13T23:59:59.000Z

23

E-Print Network 3.0 - aryl-metal bond chemistry Sample Search...  

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

metal bond chemistry Search Powered by Explorit Topic List Advanced Search Sample search results for: aryl-metal bond chemistry Page: << < 1 2 3 4 5 > >> 1 Subscriber access...

24

Electric charge trapping, residual stresses and properties of ceramics after metal/ceramics bonding  

E-Print Network [OSTI]

and diffusion of metallic species in the ceramics, during the bonding process. Keywords: Joining; ToughnessElectric charge trapping, residual stresses and properties of ceramics after metal/ceramics bonding applications is rapidly increasing. Most of these applications require the use of ceramics bonded with metal

Paris-Sud XI, Université de

25

Reactivity studies of a pseudo three-coordinate vanadium(II) complex: Synthesis of terminal oxo and sulfido complexes of vanadium(IV) and S?S and Se?Se reductive bond cleavage reactions  

SciTech Connect (OSTI)

Terminal oxo and sulfido complexes in the form of (nacnac)V=E(Ntol{sub 2}) (nacnac = [ArNC(CH{sub 3})]{sub 2}CH{sup -}, Ar = 2,6-(CHMe{sub 2}){sub 2}C{sub 6}H{sub 3}, Ntol{sub 2} = {sup -}N(C{sub 6}H{sub 4}-4-Me), E = O (1), S (2)) were isolated from treatment of the masked three-coordinate vanadium(II) complex, (nacnac)V(Ntol{sub 2}), with C{sub 5}H{sub 5}NO and S{sub 8}, respectively. Both vanadium(IV) species, 1 and 2, have been characterized by room temperature X-band EPR spectroscopic studies, and in the case of complex 1, a single crystal molecular structure confirmed the presence of a terminal oxo moiety. Moreover, reaction of (nacnac)V(Ntol{sub 2}) with diphenyl-disulfide and diphenyl-diselenide results in the reductive cleavage of these compounds to produce the vanadium(III) complexes (nacnac)V(XPh)(Ntol{sub 2}) (X = S, (3), Se (4)). A molecular structure of the phenylsulfide complex, 3, confirmed formation of the d{sup 2} complex resulting from reductive cleavage of the S-S bond.

Tran, Ba L.; Chen, Chun-Hsing; Mindiola, Daniel J. (Indiana)

2012-02-07T23:59:59.000Z

26

The diffusion bonding of silicon carbide and boron carbide using refractory metals  

SciTech Connect (OSTI)

Joining is an enabling technology for the application of structural ceramics at high temperatures. Metal foil diffusion bonding is a simple process for joining silicon carbide or boron carbide by solid-state, diffusive conversion of the metal foil into carbide and silicide compounds that produce bonding. Metal diffusion bonding trials were performed using thin foils (5 {micro}m to 100 {micro}m) of refractory metals (niobium, titanium, tungsten, and molybdenum) with plates of silicon carbide (both {alpha}-SiC and {beta}-SiC) or boron carbide that were lapped flat prior to bonding. The influence of bonding temperature, bonding pressure, and foil thickness on bond quality was determined from metallographic inspection of the bonds. The microstructure and phases in the joint region of the diffusion bonds were evaluated using SEM, microprobe, and AES analysis. The use of molybdenum foil appeared to result in the highest quality bond of the metal foils evaluated for the diffusion bonding of silicon carbide and boron carbide. Bonding pressure appeared to have little influence on bond quality. The use of a thinner metal foil improved the bond quality. The microstructure of the bond region produced with either the {alpha}-SiC and {beta}-SiC polytypes were similar.

Cockeram, B.V.

1999-10-01T23:59:59.000Z

27

ELECTRONIC AND CHEMICAL PROPERTIES OF PD IN BIMETALLIC SYSTEMS: HOW MUCH DO WE KNOW ABOUT HETERONUCLEAR METAL-METAL BONDING?  

SciTech Connect (OSTI)

The experimental and theoretical studies described above illustrate the complex nature of the heteronuclear metal-metal bond. In many cases, bimetallic bonding induces a significant redistribution of charge around the bonded metals. This redistribution of charge is usually linked to the strength of the bimetallic bond, affects the position of the core and valence levels of the metals, and can determine the chemical reactivity of the system under study. New concepts are emerging [22,23,34,36] and eventually the coupling of experiment and theory can be useful for designing more efficient bimetallic catalysts [98,106,107].

RODRIGUEZ,J.A.

2001-09-27T23:59:59.000Z

28

Ligand field considerations for the reactivity of high valent metal-oxo complexes and of bimetallic HX splitting photocatalysts  

E-Print Network [OSTI]

Inorganic molecular complexes are used to probe mechanistic steps in two reaction reactions related to energy storage. The first reaction considered is the O-O bond formation step required for water oxidation to oxygen. ...

Chambers, Matthew Burke

2013-01-01T23:59:59.000Z

29

Intramolecular electronic communication between dimetal units with multiple metal??al bonds  

E-Print Network [OSTI]

Functional Theory calculations on model compounds show that metal to ligand back bonding is critical to the electron transfer pathway. iv Tetranuclear Mo 4 clusters with two [Mo 2 (cis?DAniF) 2 ] 2+ units linked by single atoms usually show large... guidance, patience, and encouragement during my graduate study. I sincerely thank Professor Carlos A. Murillo for his advice, direction and helpful discussions on my projects. His expertise in chemistry theories and wealth of synthetic knowledge has...

Li, Zhong

2009-05-15T23:59:59.000Z

30

Method of bonding metals to ceramics and other materials  

DOE Patents [OSTI]

A composite and method of forming same wherein the composite has a non-metallic portion and an alloy portion wherein the alloy comprises an alkali metal and a metal which is an electrical conductor such as Cu, Ag, Al, Sn or Au and forms an alloy with the alkali metal. A cable of superconductors and composite is also disclosed.

Gruen, D.M.; Krauss, A.R.; DeWald, A.P.; Chienping Ju; Rigsbee, J.M.

1993-01-05T23:59:59.000Z

31

Electronic states of metallic and semiconducting carbon nanotubes with bond and site disorder  

E-Print Network [OSTI]

energy in both of metallic and semiconducting carbon nanotubes. The bond disorder gives rise to a huge nanotube. We have also found that suppression of electronic conductance around the Fermi energy due and semiconducting carbon nanotubes. A huge density of states appears at the Fermi energy in the bond disorder case

Harigaya, Kikuo

32

Polyoxometalate Embedding of a Tetraruthenium(IV)-oxo-core by Template-Directed Metalation of [-SiW10O36]8-  

E-Print Network [OSTI]

W10O36]8- : A Totally Inorganic Oxygen-Evolving Catalyst Andrea Sartorel,*, Mauro Carraro, Gianfranco,2 Stabilization of adjacent d- electron centers through multiple-µ-hydroxo/oxo bridging units is one of the most and assist deprotonation equilibria on the poly- oxygenated surface.6,7 Despite their appeal, the synthesis

Bernhard, Stefan

33

Liquid Metal Bond for Improved Heat Transfer in LWR Fuel Rods  

SciTech Connect (OSTI)

A liquid metal (LM) consisting of 1/3 weight fraction each of Pb, Sn, and Bi has been proposed as the bonding substance in the pellet-cladding gap in place of He. The LM bond eliminates the large AT over the pre-closure gap which is characteristic of helium-bonded fuel elements. Because the LM does not wet either UO2 or Zircaloy, simply loading fuel pellets into a cladding tube containing LM at atmospheric pressure leaves unfilled regions (voids) in the bond. The HEATING 7.3 heat transfer code indicates that these void spaces lead to local fuel hot spots.

Donald Olander

2005-08-24T23:59:59.000Z

34

Bond-order potential for transition metal carbide cluster for the growth simulation of a single-walled carbon nanotube  

E-Print Network [OSTI]

Bond-order potential for transition metal carbide cluster for the growth simulation of a single for transition metal carbide cluster is developed in the form of the bond-order type potential function-order potential; Carbon nanotube; transition metal carbide cluster *Corresponding Author. Fax: +81-3-5841-8653 E

Maruyama, Shigeo

35

Metal/polymer adhesion enhancement by reactive ion assisted interface bonding and mixing  

SciTech Connect (OSTI)

The adhesion strength between sputter deposited Al on Teflon AF 1600 was increased from {lt}0.15N/mm to {gt}0.7N/mm by treating the interface with reactive ion assisted interface bonding and mixing (RIAIBM) and subsequent annealing. X-ray photoelectron spectroscopy measurements indicate the RIAIBM process and subsequent annealing promotes material mixing, implantation of the reactive species, bond breaking, and new bond formation at the interface. These factors are known to increase adhesion strength. The implementation of RIAIBM is straight forward and is suitable for application to both metal-on-polymer and polymer-on-metal systems. {copyright} {ital 1997 American Institute of Physics.}

Wu, P.K. [Department of Physics, Southern Oregon University, Ashland, Oregon 97520 (United States)] [Department of Physics, Southern Oregon University, Ashland, Oregon 97520 (United States); Lu, T. [Department of Physics, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)] [Department of Physics, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)

1997-11-01T23:59:59.000Z

36

A molecular loop with interstitial channels in a chiral environment and study of formation of metal-metal bonds in dinickel, dipalladium and dititanium complexes  

E-Print Network [OSTI]

of the formation of metal-metal bonds was performed. Study of the one-electron bond obtained upon oxidation of Ni2 4+ and Pd2 4+ to Ni2 5+ and Pd2 5+, respectively, was made. The compounds synthesized were studied with various physical methods, such as X...

Ibragimov, Sergey

2006-08-16T23:59:59.000Z

37

An ab initio molecular orbital study of metal nitrosyl bond angles in iron complexes  

E-Print Network [OSTI]

I An ab initio molecular orbital study of the series [Fe(NO)CN)4] (N = 1, 2, 3) and [Fe(NO)Z(CN)ZN)] is made with emphasis on the effect of iron nitrosyl bond angle on electronic structure. In the [FeNO} 6 1- case, [Fe(NO)(CN)4] , there is a potential... barrier to bending of the nitrosyl which is consistent with existing models of transition metal 7 2- nitrosyl bonding. The [FeNO} complex, [Fe(NO) (CN)4] shows no sigrdficant barrier to moderate nitrosyl bending (up to an Fe-N-0 angle of 130 '), while...

Hawkins, Tommy Wayne

1979-01-01T23:59:59.000Z

38

Non-Destructive Inspection of Adhesive Bonds in Metal-Metal Joints...  

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

Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. lm15moore.pdf More Documents & Publications NonDestructive Inspection of Adhesive Bonds...

39

Synthesis, Characterization and Investigation of Metal-Metal Bonded Dirhodium Complexes  

E-Print Network [OSTI]

ligands led to a family of unprecedented dirhodium complexes of general formula cis-[Rh_(2)(?-L)_(2)(CNCH_(3))_(6)]^(2+) (L = bridging ligand). These complexes exhibit unusually long Rh-Rh bond distances and short Rh-C (CH_(3)NC) contacts and exhibit...

Li, Zhanyong

2014-06-20T23:59:59.000Z

40

Structures and Reactivity of Transition-Metal Compounds Featuring Metal-Ligand Multiple Bonds  

E-Print Network [OSTI]

isomers of product 2a-f. .................................................................. 89 Figure 34. The rearrangement between 2_iso6 and 2_iso3. ............................................. 92 Figure 35. The solvated ?G (kcal/mol) diagram... iso3 and iso6 for 2a-f (kcal/mol). ................ 91 Table 17. Results of energies differencesa between 2c_iso6 and 2c_iso3. ...................... 92 xv Table 18. Selected structural parameters of 2a from computations and experiments. (Bond...

Xu, Zhenggang

2014-07-25T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

High-temperature, high-pressure bonding of nested tubular metallic components  

DOE Patents [OSTI]

This invention is a tool for effecting high-temperature, high-compression bonding between the confronting faces of nested, tubular, metallic components. In a typical application, the tool is used to produce tubular target assemblies for irradiation in nuclear reactors or particle accelerators, the target assembly comprising a uranium foil and an aluminum-alloy substrate. The tool preferably is composed throughout of graphite. It comprises a tubular restraining member in which a mechanically expandable tubular core is mounted to form an annulus with the member. The components to be bonded are mounted in nested relation in the annulus. The expandable core is formed of individually movable, axially elongated segments whose outer faces cooperatively define a cylindrical pressing surface and whose inner faces cooperatively define two opposed, inwardly tapered, axial bores. Tapered rams extend respectively into the bores. The loaded tool is mounted in a conventional hot-press provided with evacuation means, heaters for maintaining its interior at bonding temperature, and hydraulic cylinders for maintaining a selected inwardly directed pressure on the tapered rams. With the hot-press evacuated and the loaded tool at the desired temperature, the cylinders are actuated to apply the selected pressure to the rams. The rams in turn expand the segmented core to maintain the nested components in compression against the restraining member. These conditions are maintained until the confronting faces of the nested components are joined in a continuous, uniform bond characterized by high thermal conductivity.

Quinby, Thomas C. (Kingston, TN)

1980-01-01T23:59:59.000Z

42

Rare-earth transition-metal intermetallics: Structure-bonding-property relationships  

SciTech Connect (OSTI)

The explorations of rare-earth, transition metal intermetallics have resulted in the synthesis and characterization, and electronic structure investigation, as well as understanding the structure-bonding property relationships. The work has presented the following results: (1) Understanding the relationship between compositions and properties in LaFe{sub 13-x}Si{sub x} system: A detailed structural and theoretical investigation provided the understanding of the role of a third element on stabilizing the structure and controlling the transformation of cubic NaZn{sub 13}-type structures to the tetragonal derivative, as well as the relationship between the structures and properties. (2) Synthesis of new ternary rare-earth iron silicides Re{sub 2-x}Fe{sub 4}Si{sub 14-y} and proposed superstructure: This compound offers complex structural challenges such as fractional occupancies and their ordering in superstructure. (3) Electronic structure calculation of FeSi{sub 2}: This shows that the metal-semiconductor phase transition depends on the structure. The mechanism of band gap opening is described in terms of bonding and structural distortion. This result shows that the electronic structure calculations are an essential tool for understanding the relationship between structure and chemical bonding in these compounds. (4) Synthesis of new ternary rare-earth Zinc aluminides Tb{sub 3}Zn{sub 3.6}Al{sub 7.4}: Partially ordered structure of Tb{sub 3}Zn{sub 3.6}Al{sub 7.4} compound provides new insights into the formation, composition and structure of rare-earth transition-metal intermetallics. Electronic structure calculations attribute the observed composition to optimizing metal-metal bonding in the electronegative (Zn, Al) framework, while the specific ordering is strongly influenced by specific orbital interactions. (5) Synthesis of new structure type of Zn{sub 39}(Cr{sub x}Al{sub 1-x}){sub 81}: These layered structures are similar to icosahedral Mn-Al quasicrystalline compounds. Therefore, this compound may provide new insights into the formation, composition and structure of quasicrystalline materials.

Han, M.K.

2006-05-06T23:59:59.000Z

43

Rare-Earth Transition-Metal Intermetallics: Structure-bonding-Property Relationships  

SciTech Connect (OSTI)

Our explorations of rare-earth, transition metal intermetallics have resulted in the synthesis and characterization, and electronic structure investigation, as well as understanding the structure-bonding-property relationships. Our work has presented the following results: (1) Understanding the relationship between compositions and properties in LaFe{sub 13-x}Si{sub x} system: A detailed structural and theoretical investigation provided the understanding of the role of a third element on stabilizing the structure and controlling the transformation of cubic NaZn{sub 13}-type structures to the tetragonal derivative, as well as the relationship between the structures and properties. (2) Synthesis of new ternary rare-earth iron silicides RE{sub 2-x}Fe{sub 4}Si{sub 14-y} and proposed superstructure: This compound offers complex structural challenges such as fractional occupancies and their ordering in superstructure. (3) Electronic structure calculation of FeSi{sub 2}: This shows that the metal-semiconductor phase transition depends on the structure. The mechanism of band gap opening is described in terms of bonding and structural distortion. This result shows that the electronic structure calculations are an essential tool for understanding the relationship between structure and chemical bonding in these compounds. (4) Synthesis of new ternary rare-earth Zinc aluminides Tb{sub 3}Zn{sub 3.6}Al{sub 7.4}: Partially ordered structure of Tb{sub 3}Zn{sub 3.6}Al{sub 7.4} compound provides new insights into the formation, composition and structure of rare-earth transition-metal intermetallics. Electronic structure calculations attribute the observed composition to optimizing metal-metal bonding in the electronegative (Zn, Al) framework, while the specific ordering is strongly influenced by specific orbital interactions. (5) Synthesis of new structure type of Zn{sub 39}(Cr{sub x}Al{sub 1-x}){sub 81}: These layered structures are similar to icosahedral Mn-Al quasicrystalline compounds. Therefore, this compound may provide new insights into the formation, composition and structure of quasicrystalline materials.

Mi-Kyung Han

2006-05-01T23:59:59.000Z

44

Method of applying a bond coating and a thermal barrier coating on a metal substrate, and related articles  

DOE Patents [OSTI]

A method for applying at least one bond coating on a surface of a metal-based substrate is described. A foil of the bond coating material is first attached to the substrate surface and then fused thereto, e.g., by brazing. The foil is often initially prepared by thermally spraying the bond coating material onto a removable support sheet, and then detaching the support sheet. Optionally, the foil may also include a thermal barrier coating applied over the bond coating. The substrate can be a turbine engine component.

Hasz, Wayne Charles (Pownal, VT); Borom, Marcus Preston (Tucson, AZ)

2002-01-01T23:59:59.000Z

45

Cation-Bonding and Protonation of the Fe[subscript 4]-Square Cluster  

SciTech Connect (OSTI)

The synthesis and characterization of discrete, molecular iron-oxo clusters is pursued in the interest of molecular magnets, bioinspired materials and models for the geochemical aqueous-mineral interface. Iron-oxo clusters are challenging to synthesize in water, due to the extremely acidic and reactive nature of dissolved iron species, and thus require chelating ligands to passivate and neutralize the cluster surface. The 2-hydroxy-1,3-N,N,N',N'-diamino-propanetetraacetic acid (HPDTA) ligand has been used to isolate several Al and Fe cluster geometries, including the square clusters Fe{sub 4}(HPDTA){sub 2} and Al{sub 4}(HPDTA){sub 2}. While prior reports on the Fe{sub 4}(HPDTA){sub 2} cluster have focused on the magnetic properties, no solution characterization has been carried out. Using electrospray ionization mass-spectrometry (ESI-MS) we show this anionic Fe{sub 4}(HPDTA){sub 2} cluster can be dissolved intact in water, and recrystallized with virtually any metal as a countercation. The bonding of the metal cation to the square face of the cluster trends with ionic radii of the cations, as shown by structural characterization of Fe{sub 4}(HPDTA){sub 2} with Li{sup +}, Na{sup +}, Cs{sup +}, Mg{sup 2+}, Ba{sup 2+}, La{sup 3+}, Eu{sup 3+}, and Zn{sup 2+}. This trend is similar to that observed for association of cations on metal oxide surfaces in the environment. Furthermore, protonation of the bridging oxo ligands of this series of Fe{sub 4}(HPDTA){sub 2} clusters is variable (0, 1, or 2 protons), and structures as a function of protonation is discussed. This paper, largely structural in nature, sets the foundation for future aqueous phase studies of iron-oxo molecular clusters as models for the oxide-water interface in the natural aqueous environment.

Hou, Yu; Rodriguez, Mark A.; Nyman, May (Sandia)

2012-04-30T23:59:59.000Z

46

Mechanistic studies on metal-catalyzed carbon-nitrogen bond forming reactions  

E-Print Network [OSTI]

Mechanistic studies on copper and palladium-catalyzed C-N bond forming reactions are described. To understand the mechanistic details of these processes, several principles of physical organic chemistry have been employed. ...

Strieter, Eric R

2005-01-01T23:59:59.000Z

47

Tuning the Metal-Adsorbate Chemical Bond through the Ligand Effect...  

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

most active metal catalyst for many important reactions, including the reduction of oxygen in fuel cells. Figure 1. Figure 1. Schematic representation of Pt subsurface alloys...

48

Strong Bond Activation with Late Transition-Metal Pincer Complexes as a Foundation for Potential Catalysis  

E-Print Network [OSTI]

introduction for pincer ligands ................................................ 1 1.2 Synthesis of pincer ligated transition metal complexes ........................ 3 1.3 Structural preference for group 9/10 metal complexes (4d and 5d) ...... 9 1... ..................................................................................... 126 V SYNTHESIS, CHARACTERIZATION, AND REACTIVITY OF A RHODIUM DIFLUOROCARBENE COMPLEX SUPPORTED BY PNP PINCER LIGAND ........................................................................................ 144 5.1 Introduction...

Zhu, Yanjun

2012-07-16T23:59:59.000Z

49

Ternary rare earth and actinoid transition metal carbides viewed as carbometalates  

SciTech Connect (OSTI)

Ternary carbides A{sub x}T{sub y}C{sub z} (A=rare earth metals and actinoids; T=transition metals) with monoatomic species C{sup 4-} as structural entities are classified according to the criteria (i) metal to carbon ratio, (ii) coordination number of the transition metal by carbon atoms, and (iii) the dimensionality of the anionic network [T{sub y}C{sub z}]{sup n-}. Two groups are clearly distinguishable, depending on the metal to carbon ratio. Those where this ratio is equal to or smaller than 2 may be viewed as carbometalates, thus extending the sequence of complex anions from fluoro-, oxo-, and nitridometalates to carbometalates. The second group, metal-rich carbides with metal to carbon ratios equal to or larger than 4 is better viewed as typical intermetallics (''interstitial carbides''). The chemical bonding properties have been investigated by analyzing the Crystal Orbital Hamilton Population (COHP). The chemical bonding situation with respect to individual T-C bonds is similar in both classes. The main difference is the larger number of metal-metal bonds in the crystal structures of the metal-rich carbides.

Dashjav, Enkhtsetseg [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, D-01187 Dresden (Germany); Kreiner, Guido [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, D-01187 Dresden (Germany); Schnelle, Walter [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, D-01187 Dresden (Germany); Wagner, Frank R. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, D-01187 Dresden (Germany); Kniep, Ruediger [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Strasse 40, D-01187 Dresden (Germany)], E-mail: Kniep@cpfs.mpg.de; Jeitschko, Wolfgang [Institut fuer Anorganische und Analytische Chemie, Universitaet Muenster, Wilhelm-Klemm-Strasse 8, D-48149 Muenster (Germany)], E-mail: jeitsch@uni-muenster.de

2007-02-15T23:59:59.000Z

50

J. Am. Chem. SOC.1993, 115, 2357-2362 2357 Metal-Metal Bonding in Engel-Brewer Intermetallics  

E-Print Network [OSTI]

. Introduction Materials that exhibit high thermal stability and resistance to oxidation and corrosion of transition metals might possibly serve as both highly stable catalysts and as thermally stable, oxidation-resistant to be extremely thermally stable in the bulk form. We find the atomization energy of the ZrPt, cluster at its bulk

Carter, Emily A.

51

An Investigation of Bonding Mechanism in Metal Cladding by Warm Rolling  

E-Print Network [OSTI]

of other groups of dissimilar metal sheets. v DEDICATION This dissertation is dedicated to my mother Fuxia Liu, my father Benhua Yang and my wife Juan Yin. Thank you for all your love and support. vi ACKNOWLEDGEMENTS I would like to thank my...

Yang, Wei

2012-02-14T23:59:59.000Z

52

Ultra-stable Molecule-Surface Architectures at Metal Oxides: Structure, Bonding, and Electron-transfer Processes  

SciTech Connect (OSTI)

Research funded by this project focused on the development of improved strategies for functionalization of metal oxides to enhance charge?transfer processes relevant to solar energy conversion. Initial studies included Fe2O3, WO3, TiO2, SnO2, and ZnO as model oxide systems; these systems were chosen due to differences in metal oxidation state and chemical bonding types in these oxides. Later studies focused largely on SnO2 and ZnO, as these materials show particularly promising surface chemistry, have high electron mobility, and can be readily grown in both spherical nanoparticles and as elongated nanorods. New molecules were synthesized that allowed the direct chemical assembly of novel nanoparticle ?dyadic? structures in which two different oxide materials are chemically joined, leading to an interface that enhances the separation of of charge upon illumination. We demonstrated that such junctions enhance photocatalytic efficiency using model organic compounds. A separate effort focused on novel approaches to linking dye molecules to SnO2 and ZnO as a way to enhance solar conversion efficiency. A novel type of surface binding through

Hamers, Robert John

2013-12-07T23:59:59.000Z

53

K{sub 6} carbon: A metallic carbon allotrope in sp{sup 3} bonding networks  

SciTech Connect (OSTI)

We identify by first-principles calculations a new cubic carbon phase in I4{sub 1}32 (O{sup 8}) symmetry, named K{sub 6} carbon, which has a six atom primitive cell comprising sp{sup 3} hybridized C{sub 3} triangle rings. The structural stability is verified by phonon mode analysis. The calculated elastic constants show that the K{sub 6} carbon is a high ductile material with a density even lower than graphite. Electronic band and density of states calculations reveal that it is a metallic carbon allotrope with a high electronic density of states of ?0.10 states/eV per atom at the Fermi level. These results broaden our understanding of the structural and electronic properties of carbon allotropes.

Niu, Chun-Yao; Wang, Xin-Quan; Wang, Jian-Tao, E-mail: wjt@aphy.iphy.ac.cn [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)

2014-02-07T23:59:59.000Z

54

Method Of Bonding A Metal Connection To An Electrode Including A Core Having A Fiber Or Foam Type Structure For An Electrochemical Cell, An  

DOE Patents [OSTI]

A method of bonding a metal connection to an electrode including a core having a fiber or foam-type structure for an electrochemical cell, in which method at least one metal strip is pressed against one edge of the core and is welded thereto under compression, wherein, at least in line with the region in which said strip is welded to the core, which is referred to as the "main core", a retaining core of a type analogous to that of the main core is disposed prior to the welding.

Loustau, Marie-Therese (Bordeaux, FR); Verhoog, Roelof (Bordeaux, FR); Precigout, Claude (Lormont, FR)

1996-09-24T23:59:59.000Z

55

XAS Characterization of a Nitridoiron(IV) Complex With a Very Short Fe-N Bond  

SciTech Connect (OSTI)

X-ray absorption spectroscopy has been used to characterize the novel nitridoiron(IV) units in two [PhBP{sup R}{sub 3}]Fe(N) complexes (R = iPr and CyCH{sub 2}) and obtain direct spectroscopic evidence for a very short Fe-N distance. The distance of 1.51--1.55 {angstrom} reflects the presence of an Fe{triple_bond}N triple bond in accord with the observed Fe{triple_bond}N vibration observed for one of these species (v{sub FeN}=1034 cm{sup -1}). This highly covalent bonding interaction results in the appearance of an unusually intense pre-edge peak, whose estimated area of 100(20) units is much larger than those of the related tetrahedral complexes with Fe{sup I}-N{sub 2}-Fe{sup I}, Fe{sup II}-NPh{sub 2}, and Fe{sup III}{triple_bond}NAd motifs, and those of recently described six-coordinate Fe{sup V}{triple_bond}N and Fe{sup VI}{triple_bond}N complexes. The observation that the Fe{sup IV}-N distances of two [PhBP{sup R}{sub 3}]Fe(N) complexes are shorter than the Fe{sup IV}-O bond lengths of oxoiron(IV) complexes may be rationalized on the basis of the greater ? basicity of the nitrido ligand than the oxo ligand and a lower metal coordination number for the Fe(N) complex.

Rohde, J.-U.; Betley, T.A.; Jackson, T.A.; Saouma, C.T.; Peters, J.C.; Que, L.; Jr.

2009-06-04T23:59:59.000Z

56

XAS Characterization of a Nitridoiron(IV) Complex with a Very Short Fe-N Bond  

SciTech Connect (OSTI)

X-ray absorption spectroscopy has been used to characterize the novel nitridoiron(IV) units in two [PhBP{sup R}{sub 3}]Fe(N) complexes (R = iPr and CyCH{sub 2}) and obtain direct spectroscopic evidence for a very short Fe-N distance. The distance of 1.51-1.55 {angstrom} reflects the presence of an Fe{triple_bond}N triple bond in accord with the observed Fe{triple_bond}N vibration observed for one of these species ({nu}{sub FeN} = 1034 cm{sup -1}). This highly covalent bonding interaction results in the appearance of an unusually intense pre-edge peak, whose estimated area of 100(20) units is much larger than those of the related tetrahedral complexes with Fe{sup I}-N{sub 2}-Fe{sup I}, Fe{sup II}-NPh{sub 2}, and Fe{sup III}NAd motifs, and those of recently described six-coordinate Fe{sup V}{triple_bond}N and Fe{sup VI}{triple_bond}N complexes. The observation that the Fe{sup IV}-N distances of two [PhBP{sup R}{sub 3}]Fe(N) complexes are shorter than the Fe{sup IV}-O bond lengths of oxoiron(IV) complexes may be rationalized on the basis of the greater {pi} basicity of the nitrido ligand than the oxo ligand and a lower metal coordination number for the Fe(N) complex.

Rohde,J.; Betley, T.; Jackson, T.; Saouma, C.; Peters, J.; Que, Jr., L.

2007-01-01T23:59:59.000Z

57

Photochemical route to actinide-transition metal bonds: synthesis, characterization and reactivity of a series of thorium and uranium heterobimetallic complexes  

SciTech Connect (OSTI)

A series of actinide-transition metal heterobimetallics has been prepared, featuring thorium, uranium and cobalt. Complexes incorporating the binucleating ligand N[-(NHCH2PiPr2)C6H4]3 and Th(IV) (4) or U(IV) (5) with a carbonyl bridged [Co(CO)4]- unit were synthesized from the corresponding actinide chlorides (Th: 2; U: 3) and Na[Co(CO)4]. Irradiation of the isocarbonyls with ultraviolet light resulted in the formation of new species containing actinide-metal bonds in good yields (Th: 6; U: 7); this photolysis method provides a new approach to a relatively rare class of complexes. Characterization by single-crystal X-ray diffraction revealed that elimination of the bridging carbonyl is accompanied by coordination of a phosphine arm from the N4P3 ligand to the cobalt center. Additionally, actinide-cobalt bonds of 3.0771(5) and 3.0319(7) for the thorium and uranium complexes, respectively, were observed. The solution state behavior of the thorium complexes was evaluated using 1H, 1H-1H COSY, 31P and variable-temperature NMR spectroscopy. IR, UV-Vis/NIR, and variable-temperature magnetic susceptibility measurements are also reported.

Ward, Ashleigh; Lukens, Wayne; Lu, Connie; Arnold, John

2014-04-01T23:59:59.000Z

58

Partial-Transient-Liquid-Phase Bonding of Advanced Ceramics Using Surface-Modified Interlayers  

E-Print Network [OSTI]

Theoretical-Model for Diffusion Bonding." Metal Science 16,Derby, B. & Wallach, E. "Diffusion Bonding - Development ofInterfacial Contact during Diffusion Bonding." Metallurgical

Reynolds, Thomas Bither

2012-01-01T23:59:59.000Z

59

AC 2010-1263: STUDENT UNDERSTANDING OF ATOMIC BONDS AND THEIR RELATION TO MECHANICAL PROPERTIES OF METALS IN AN  

E-Print Network [OSTI]

student difficulties in learning materials science. © American Society for Engineering Education, 2010 #12-level introductory materials science course for engineers. In particular, we describe a number of student OF METALS IN AN INTRODUCTORY MATERIALS SCIENCE ENGINEERING COURSE Andrew Heckler, Ohio State University

Heckler, Andrew F.

60

Solder extrusion pressure bonding process and bonded products produced thereby  

DOE Patents [OSTI]

Disclosed is a process for production of soldered joints which are highly reliable and capable of surviving 10,000 thermal cycles between about [minus]40 C and 110 C. Process involves interposing a thin layer of a metal solder composition between the metal surfaces of members to be bonded and applying heat and up to about 1000 psi compression pressure to the superposed members, in the presence of a reducing atmosphere, to extrude the major amount of the solder composition, contaminants including fluxing gases and air, from between the members being bonded, to form a very thin, strong intermetallic bonding layer having a thermal expansion tolerant with that of the bonded members.

Beavis, L.C.; Karnowsky, M.M.; Yost, F.G.

1992-06-16T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Solder extrusion pressure bonding process and bonded products produced thereby  

DOE Patents [OSTI]

Production of soldered joints which are highly reliable and capable of surviving 10,000 thermal cycles between about -40.degree. C. and 110.degree. C. Process involves interposing a thin layer of a metal solder composition between the metal surfaces of members to be bonded and applying heat and up to about 1000 psi compression pressure to the superposed members, in the presence of a reducing atmosphere, to extrude the major amount of the solder composition, contaminants including fluxing gases and air, from between the members being bonded, to form a very thin, strong intermetallic bonding layer having a thermal expansion tolerant with that of the bonded members.

Beavis, Leonard C. (Albuquerque, NM); Karnowsky, Maurice M. (Albuquerque, NM); Yost, Frederick G. (Ceder Crest, NM)

1992-01-01T23:59:59.000Z

62

Preliminary Characterisation of Low-Temperature Bonded Copper Interconnects for 3-D Integrated Circuits  

E-Print Network [OSTI]

Three dimensional (3-D) integrated circuits can be fabricated by bonding previously processed device layers using metal-metal bonds that also serve as layer-to-layer interconnects. Bonded copper interconnects test structures ...

Leong, Hoi Liong

63

B(C6F5)3 Activation of Oxo Tungsten Complexes That Are Relevant to Olefin Metathesis  

E-Print Network [OSTI]

B(C6F5)3 Activation of Oxo Tungsten Complexes That Are Relevant to Olefin Metathesis Dmitry V Information ABSTRACT: We have found that coordination of B(C6F5)3 to an oxo ligand in tungsten oxo alkylidene reactions between a relatively well behaved Lewis acid (B(C6F5)3) and a variety of tungsten oxo complexes

Müller, Peter

64

Z-Selective Olefin Metathesis Reactions Promoted by Tungsten Oxo Alkylidene Complexes  

E-Print Network [OSTI]

Z-Selective Olefin Metathesis Reactions Promoted by Tungsten Oxo Alkylidene Complexes Dmitry V). Early in the development of olefin metathesis catalysts that contain tungsten, it was shown that metathetically more active and reproducible systems were produced when tungsten oxo complexes were deliberately

Müller, Peter

65

Author's personal copy Crystal structure of the uranium oxo borohydride complex  

E-Print Network [OSTI]

Author's personal copy Crystal structure of the uranium oxo borohydride complex U2(l-O)(BH4)6(dme)2 online 9 November 2011 Keywords: Uranium Borohydride Hydride Oxo Crystal structure Aminodiboranate a b s t r a c t The reaction of uranium tetrachloride, UCl4, with sodium N,N-dimethylaminodiboranate, Na(H3

Girolami, Gregory S.

66

Density functional theory of spin-coupled models for diiron-oxo proteins: Effects of oxo and hydroxo bridging on geometry, electronic  

E-Print Network [OSTI]

of their immediate N3O3 coordination. In addition, the diiron-oxo protein hemerythrin has been discussed. Theoretical well the antiferromagnetic behavior of azidomet- and azidometmyo-hemerythrin. Finally, the magnetic

McCusker, James K.

67

Carbon-carbon bond cleavage of 1,2-hydroxy ethers b7 vanadium(V) dipicolinate complexes  

SciTech Connect (OSTI)

The development of alternatives to current petroleum-based fuels and chemicals is becoming increasingly important due to concerns over climate change, growing world energy demand, and energy security issues. Using non-food derived biomass to produce renewable feedstocks for chemicals and fuels is a particularly attractive possibility. However, the majority of biomass is in the form of lignocellulose, which is often not fully utilized due to difficulties associated with breaking down both lignin and cellulose. Recently, a number of methods have been reported to transform cellulose directly into more valuable materials such as glucose, sorbitol, 5-(chloromethyl)furfural, and ethylene glycol. Less progress has been made with selective transformations of lignin, which is typically treated in paper and forest industries by kraft pulping (sodium hydroxide/sodium sulfide) or incineration. Our group has begun investigating aerobic oxidative C-C bond cleavage catalyzed by dipicolinate vanadium complexes, with the idea that a selective C-C cleavage reaction of this type could be used to produce valuable chemicals or intermediates from cellulose or lignin. Lignin is a randomized polymer containing methoxylated phenoxy propanol units. A number of different linkages occur naturally; one of the most prevalent is the {beta}-O-4 linkage shown in Figure 1, containing a C-C bond with 1,2-hydroxy ether substituents. While the oxidative C-C bond cleavage of 1,2-diols has been reported for a number of metals, including vanadium, iron, manganese, ruthenium, and polyoxometalate complexes, C-C bond cleavage of 1,2-hydroxy ethers is much less common. We report herein vanadium-mediated cleavage of C-C bonds between alcohol and ether functionalities in several lignin model complexes. In order to explore the scope and potential of vanadium complexes to effect oxidative C-C bond cleavage in 1,2-hydroxy ethers, we examined the reactivity of the lignin model complexes pinacol monomethyl ether (A), 2-phenoxyethanol (B), and 1,2-diphenyl-2-methoxyethanol (C) (Figure 1). Reaction of (dipic)V{sup V}(O)O{sup i}Pr (1a) or (dipic)V{sup v}(O)OEt (lb) with A, B, or C in acetonitrile yielded new vanadium(V) complexes where the alcohol-ether ligand was bound in a chelating fashion. From the reaction of 1b with pinacol monomethyl ether (A) in acetonitrile solution, (dipic)V{sup v}(O)(pinOMe) (2) (PinOMe = 2,3-dimethyl-3-methoxy-2-butanoxide) was isolated in 61 % yield. Reaction of 1b with 2-phenoxyethanol (B) in acetonitrile gave the new complex (dipic)V{sup v}(O)(OPE) (3) (OPE = 2-phenoxyethoxide), which was isolated in 76% yield. In a similar fashion, 1a reacted with 1,2-diphenyl-2-methoxyethanol (C) to give (dipic)V(O)(DPME) (4) (DPME = 1,2-diphenyl-2-methoxyethoxide), which was isolated in 39% yield. Complexes 2, 3, and 4 were characterized by {sup 1}H NMR and IR spectroscopy, elemental analysis, and X-ray crystallography. Compared to the previously reported vanadium(V) pinacolate complex (dipic)V(O)(pinOH) the X-ray structure of complex 2 reveals a slightly shorter V = O bond, 1.573(2) {angstrom} vs 1.588(2) {angstrom} for the pinOH structure. Complexes 3 and 4 display similar vanadium oxo bond distances of 1.568(2) {angstrom} and 1.576(2) {angstrom}, respectively. All three complexes show longer bonds to the ether-oxygen trans to the oxo (2.388(2) {angstrom} for 2, 2.547(2) {angstrom} for 3, and 2.438(2) {angstrom} for 4) than to the hydroxy-oxygen in the pinOH structure (2.252(2) {angstrom}).

Hanson, Susan K [Los Alamos National Laboratory; Gordon, John C [Los Alamos National Laboratory; Thorn, David L [Los Alamos National Laboratory; Scott, Brian L [Los Alamos National Laboratory; Baker, R Tom [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

68

alpha-chloro beta-oxo sulfenyl: Topics by E-print Network  

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

alpha-chloro beta-oxo sulfenyl First Page Previous Page 1 Next Page Last Page Topic Index 1 Ferrocenyl bis-phosphine ligands bearing sulfinyl, sulfonyl or sulfenyl groups:...

69

Pre-plated reactive diffusion-bonded battery electrode plaques  

DOE Patents [OSTI]

A high strength, metallic fiber battery plaque is made using reactive diffusion bonding techniques, where a substantial amount of the fibers are bonded together by an iron-nickel alloy.

Maskalick, Nicholas J. (Pittsburgh, PA)

1984-01-01T23:59:59.000Z

70

Non-bonded ultrasonic transducer  

DOE Patents [OSTI]

A mechanically assembled non-bonded ultrasonic transducer includes a substrate, a piezoelectric film, a wetting agent, a thin metal electrode, and a lens held in intimate contact by a mechanical clamp. No epoxy or glue is used in the assembly of this device.

Eoff, J.M.

1984-07-06T23:59:59.000Z

71

Effects of atmospheres on bonding characteristics of silver and...  

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

temperature. To investigate the effects of atmospheres on the bonding characteristics of ceramic joints brazed with Ag-CuO braze filler metals, alumina joints prepared using a...

72

Investing in Bonds  

E-Print Network [OSTI]

Bonds, which are issued by governments and corporations, can be an important part of one's investment portfolio. U.S. government bonds, municipal bonds, zero-coupon bonds and other types are described. Also learn strategies for coping with inflation...

Johnson, Jason; Polk, Wade

2002-08-12T23:59:59.000Z

73

Nanopatterning of metal-coated silicon surfaces via ion beam irradiation: Real time x-ray studies reveal the effect of silicide bonding  

SciTech Connect (OSTI)

We investigated the effect of silicide formation on ion-induced nanopatterning of silicon with various ultrathin metal coatings. Silicon substrates coated with 10 nm Ni, Fe, and Cu were irradiated with 200 eV argon ions at normal incidence. Real time grazing incidence small angle x-ray scattering (GISAXS) and x-ray fluorescence (XRF) were performed during the irradiation process and real time measurements revealed threshold conditions for nanopatterning of silicon at normal incidence irradiation. Three main stages of the nanopatterning process were identified. The real time GISAXS intensity of the correlated peaks in conjunction with XRF revealed that the nanostructures remain for a time period after the removal of the all the metal atoms from the sample depending on the binding energy of the metal silicides formed. Ex-situ XPS confirmed the removal of all metal impurities. In-situ XPS during the irradiation of Ni, Fe, and Cu coated silicon substrates at normal incidence demonstrated phase separation and the formation of different silicide phases that occur upon metal-silicon mixing. Silicide formation leads to nanostructure formation due the preferential erosion of the non-silicide regions and the weakening of the ion induced mass redistribution.

El-Atwani, Osman [School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States); Gonderman, Sean; Suslova, Anastassiya; Fowler, Justin; El-Atwani, Mohamad [School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); DeMasi, Alexander; Ludwig, Karl [Physics Department, Boston University, Boston, Massachusetts 02215 (United States); Paul Allain, Jean [School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States); School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)

2013-03-28T23:59:59.000Z

74

Process Of Bonding Copper And Tungsten  

DOE Patents [OSTI]

Process for bonding a copper substrate to a tungsten substrate by providing a thin metallic adhesion promoting film bonded to a tungsten substrate and a functionally graded material (FGM) interlayer bonding the thin metallic adhesion promoting film to the copper substrate. The FGM interlayer is formed by sintering a stack of individual copper and tungsten powder blend layers having progressively higher copper content/tungsten content, by volume, ratio values in successive powder blend layers in a lineal direction extending from the tungsten substrate towards the copper substrate. The resulting copper to tungsten joint well accommodates the difference in the coefficient of thermal expansion of the materials.

Slattery, Kevin T. (St. Charles, MO); Driemeyer, Daniel E. (Manchester, MO); Davis, John W. (Ballwin, MO)

2000-07-18T23:59:59.000Z

75

New Designs of Rigid Pincer Complexes with PXP Ligands and Late Transition Metals and sp3 C-F Bond Activation with Silylium and Alumenium Species  

E-Print Network [OSTI]

. In Chapter V, a series of (TPB)M complexes (M = Ni, Pd, Pt) were synthesized and characterized by multinuclear NMR spectroscopy and X-ray crystallography. The resulting metal complexes displayed strong dative M?B interaction and unusual tetrahedral geometry...

Gu, Weixing

2012-02-14T23:59:59.000Z

76

Method of bonding  

DOE Patents [OSTI]

1. A method of making a fuel-containing structure for nuclear reactors, comprising providing an assembly comprising a plurality of fuel units; each fuel unit consisting of a core plate containing thermal-neutron-fissionable material, sheets of cladding metal on its bottom and top surfaces, said cladding sheets being of greater width and length than said core plates whereby recesses are formed at the ends and sides of said core plate, and end pieces and first side pieces of cladding metal of the same thickness as the core plate positioned in said recesses, the assembly further comprising a plurality of second side pieces of cladding metal engaging the cladding sheets so as to space the fuel units from one another, and a plurality of filler plates of an acid-dissolvable nonresilient material whose melting point is above 2000.degree. F., each filler plate being arranged between a pair of said second side pieces and the cladding plates of two adjacent fuel units, the filler plates having the same thickness as the second side pieces; the method further comprising enclosing the entire assembly in an envelope; evacuating the interior of the entire assembly through said envelope; applying inert gas under a pressure of about 10,000 psi to the outside of said envelope while at the same time heating the assembly to a temperature above the flow point of the cladding metal but below the melting point of any material of the assembly, whereby the envelope is pressed against the assembly and integral bonds are formed between plates, sheets, first side pieces, and end pieces and between the sheets and the second side pieces; slowly cooling the assembly to room temperature; removing the envelope; and dissolving the filler plates without attacking the cladding metal.

Saller, deceased, Henry A. (late of Columbus, OH); Hodge, Edwin S. (Columbus, OH); Paprocki, Stanley J. (Columbus, OH); Dayton, Russell W. (Columbus, OH)

1987-12-01T23:59:59.000Z

77

Surety Bond Program (Maryland)  

Broader source: Energy.gov [DOE]

The Surety Bond Program, a program of the Maryland Small Business Development Financing Authority, assists eligible small businesses in obtaining bid, performance or payment bonds necessary to...

78

Electronic structure of the dioxygen to transition metal bond: generalized molecular orbital calculations on models of manganese, iron, and cobalt porphyrins  

E-Print Network [OSTI]

are reported for FeP where P = porphinato(2-) ~ (NH2)4 , (NHCH2)4 , (N4C2H10) , (N4CBH6) and for Fe(02)PL where P = porphi nato(2-), (NH2)4 , (N4C2H6) and L = imidazole, NH3. The MO calculations indicate that (N4C2H6) is a better model for the porphyri n... ring in metal-dioxygen porphyrin complexes than the model (NH ) . This model was employed in generalized molecular orbital-confi guration interaction calculations of Fe(02)P(NH3), Co(02)P(NH3), and Mn(02)P where P = (N4C2H6) The ozone...

Newton, James Edward

1982-01-01T23:59:59.000Z

79

Metal-Oxo Catalysts for Generating Hydrogen from Water - Energy Innovation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces andMapping theEnergy StorageAdvanced Materials| EMSLOrganic Heat

80

Bond Financing (New Jersey)  

Broader source: Energy.gov [DOE]

Bond financing is available to eligible businesses through the New Jersey Economic Development Authority, in the amount of $500,000 to $10 million. The bonds can be used to finance capital...

Note: This page contains sample records for the topic "metal oxo bonds" 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

Local Government Revenue Bonds (Montana)  

Broader source: Energy.gov [DOE]

Limited obligation local government bonds ("special revenue bonds") may be issued for qualified electric energy generation facilities, including those powered by renewables. These bonds generally...

82

Electrically conductive resinous bond and method of manufacture  

DOE Patents [OSTI]

A method of bonding elements together with a bond of high strength and good electrical conductivity which comprises: applying an unfilled polyimide resin between surfaces of the elements to be bonded, heat treating said unfilled polyimide resin in stages between a temperature range of about 40 to 365/sup 0/C to form a strong adhesive bond between said elements, applying a metal-filled polyimide resin overcoat between said elements so as to provide electrical connection therebetween, and heat treating said metal-filled polyimide resin with substantially the same temperature profile as the unfilled polyimide resin. The present invention is also concerned with an adhesive, resilient, substantially void free bonding combination for providing a high strength, electrically conductive adhesive attachment between electrically conductive elements which comprises a major amount of an unfilled polyimide resin and a minor amount of a metal-filled polyimide resin.

Snowden, T.M. Jr.; Wells, B.J.

1985-01-01T23:59:59.000Z

83

Nitrogen-tuned bonding mechanism of Li and Ti adatom embedded graphene  

SciTech Connect (OSTI)

The effects of nitrogen defects on the bonding mechanism and resultant binding energy between the metal and graphene layer were investigated using density functional theory (DFT) calculations. For the graphitic N-doped graphene, Li adatom exhibited ionic bonding character, while Ti adatom showed features of covalent bonding similar to that of pristine graphene. However, in the cases of pyridinic and pyrrolic structures, partially covalent bonding characteristic occurred around N atoms in the process of binding with metals, and this particular bond formation enhanced the bond strength of metal on the graphene layer as much as it exceeded the cohesive energy of the metal bulk. Thus, Li and Ti metals are expected to be dispersed with atomic accuracy on the pyridinic and pyrrolic N-doped graphene layers. These results demonstrate that the bonding mechanism of metal–graphene complex can change according to the type of N defect, and this also affects the binding results. - Graphical abstract: Display Omitted - Highlights: • Nitrogen defects changed the bonding mechanism between metal and graphene. • Bonding character and binding results were investigated using DFT calculations. • Covalent bonding character occurred around pyridinic and pyrrolic N-doped graphene. • Pyridinic and pyrrolic N atoms are effective for metal dispersion on the graphene.

Lee, Sangho; Chung, Yong-Chae, E-mail: yongchae@hanyang.ac.kr

2013-09-15T23:59:59.000Z

84

Bonding thermoplastic polymers  

DOE Patents [OSTI]

We demonstrate a new method for joining patterned thermoplastic parts into layered structures. The method takes advantage of case-II permeant diffusion to generate dimensionally controlled, activated bonding layers at the surfaces being joined. It is capable of producing bonds characterized by cohesive failure while preserving the fidelity of patterned features in the bonding surfaces. This approach is uniquely suited to production of microfluidic multilayer structures, as it allows the bond-forming interface between plastic parts to be precisely manipulated at micrometer length scales. The bond enhancing procedure is easily integrated in standard process flows and requires no specialized equipment.

Wallow, Thomas I. (Fremont, CA); Hunter, Marion C. (Livermore, CA); Krafcik, Karen Lee (Livermore, CA); Morales, Alfredo M. (Livermore, CA); Simmons, Blake A. (San Francisco, CA); Domeier, Linda A. (Danville, CA)

2008-06-24T23:59:59.000Z

85

Process Of Bonding Copper And Tungsten  

DOE Patents [OSTI]

Process for bonding a copper substrate to a tungsten substrate by providing a thin metallic adhesion promoting film bonded to a tungsten substrate and a functionally graded material (FGM) interlayer bonding the thin metallic adhesion promoting film to the copper substrate. The FGM interlayer is formed by thermal plasma spraying mixtures of copper powder and tungsten powder in a varied blending ratio such that the blending ratio of the copper powder and the tungsten powder that is fed to a plasma torch is intermittently adjusted to provide progressively higher copper content/tungsten content, by volume, ratio values in the interlayer in a lineal direction extending from the tungsten substrate towards the copper substrate. The resulting copper to tungsten joint well accommodates the difference in the coefficient of thermal expansion of the materials.

Slattery, Kevin T. (St. Charles, MO); Driemeyer, Daniel E. (Manchester, MO)

1999-11-23T23:59:59.000Z

86

Creep effects in diffusion bonding of oxygen-free copper  

E-Print Network [OSTI]

Diffusion is the transport of atoms or particles through the surrounding material. Various microstructural changes in metals are based on the diffusion phenomena. In solid metals the diffusion is closely related to crystallographic defects. In single-component metals the dominant mechanism of diffusion is the vacancy mechanism. Diffusion bonding is a direct technological application of diffusion. It is an advanced solidstate joining process in which the surfaces of two components are brought to contact with each other and heated under a pressing load in a controlled environment. During the process, the contact surfaces are bonded by atomic diffusion across the interface and as a result, one solid piece is formed. The condition of high temperature and low applied stress combined with relatively long process duration enables the creep effects to take place in bonded metals. Furthermore, creep causes unwanted permanent deformations in the bonded components. Some authors suggest that there could be a threshold fo...

Moilanen, Antti

87

E-Print Network 3.0 - actinidecarbon triple bonds Sample Search...  

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

Adhesives that bond metals, plastics, FRP and other ... Source: Collection: Engineering 84 The accuracy of ab initio molecular geometries for systems containing second-row...

88

Private Activity Revenue Bonds (Maryland)  

Broader source: Energy.gov [DOE]

Private Activity Revenue Bonds are available in the form of both taxable bonds and tax-exempt bonds. Both types of bonds provide access to long-term capital markets for fixed asset financing....

89

Adsorption of propane, isopropyl, and hydrogen on cluster models of the M1 phase of Mo-V-Te-Nb-O mixed metal oxide catalyst  

SciTech Connect (OSTI)

The Mo-V-Te-Nb-O mixed metal oxide catalyst possessing the M1 phase structure is uniquely capable of directly converting propane into acrylonitrile. However, the mechanism of this complex eight-electron transformation, which includes a series of oxidative H-abstraction and N-insertion steps, remains poorly understood. We have conducted a density functional theory study of cluster models of the proposed active and selective site for propane ammoxidation, including the adsorption of propane, isopropyl (CH{sub 3}CHCH{sub 3}), and H which are involved in the first step of this transformation, that is, the methylene C-H bond scission in propane, on these active site models. Among the surface oxygen species, the telluryl oxo (Te=O) is found to be the most nucleophilic. Whereas the adsorption of propane is weak regardless of the MO{sub x} species involved, isopropyl and H adsorption exhibits strong preference in the order of Te=O > V=O > bridging oxygens > empty Mo apical site, suggesting the importance of TeO{sub x} species for H abstraction. The adsorption energies of isopropyl and H and consequently the reaction energy of the initial dehydrogenation of propane are strongly dependent on the number of ab planes included in the cluster, which points to the need to employ multilayer cluster models to correctly capture the energetics of surface chemistry on this mixed metal oxide catalyst.

Govindasamy, Agalya [University of Cincinnati; Muthukumar, Kaliappan [University of Cincinnati; Yu, Junjun [University of Cincinnati; Xu, Ye [ORNL; Guliants, Vadim V. [University of Cincinnati

2010-01-01T23:59:59.000Z

90

The time reversed elastic nonlinearity diagnostic applied to evaluation of diffusion bonds  

E-Print Network [OSTI]

The time reversed elastic nonlinearity diagnostic applied to evaluation of diffusion bonds T. J based nondestructive evaluation techniques has begun. Here, diffusion bonded metal disks containing and impulse responses to perform TR experiments in thin h 5 mm, d 5 cm diffusion bonded disks, in order

91

Use of Covalently-Bonded Ceramics in Jet Engine Thermal BarrierCoatings Emily A. Jarvis and Emily A. Carter  

E-Print Network [OSTI]

Use of Covalently-Bonded Ceramics in Jet Engine Thermal BarrierCoatings Emily A. Jarvis and Emily A-shell repulsions with the nickel metal alloy. We demonstrated how doping the ceramic-metal interface with early with a more covalently bonded ceramic, silica. We found the ideal ceramic/metal and ceramiclceramic TBC

Carter, Emily A.

92

Differences in Electrostatic Potential Around DNA Fragments Containing Guanine and 8-oxo-Guanine  

SciTech Connect (OSTI)

hanges of electrostatic potential (EP) around the DNA molecule resulting from chemical modifications of nucleotides may play a role in enzymatic recognition of damaged sites. Effects of chemical modifications of nucleotides on the structure of DNA have been characterized through large scale density functional theory computations. Quantum mechanical structural optimizations of DNA fragments with three pairs of nucleotoides and accompanying counteractions were performed with a B3LYP exchange-correlation functional and 6-31G** basis sets. The “intact” DNA fragment contained guanine in the middle layer, while the “damaged” fragment had the guanine replaced with 8-oxo-guanine. The electrostatic potential around these DNA fragments was projected on a surface around the double helix. The 2D maps of EP of intact and damaged DNA fragments were analyzed to identify these modifications of EP that result from the occurrence of 8-oxo-guanine. It was found that distortions of the phosphate groups and displacements of the accompanying countercations are clearly reflected in the EP maps.

Haranczyk, Maciej; Gutowski, Maciej S.

2007-02-01T23:59:59.000Z

93

Preparation and characterization of chiral metal-metal bonded compounds  

E-Print Network [OSTI]

(LL)2 Complexes. Reactio~ of Re2(02CCSHS)4012 rrith dPcp . Resolution of Optical Isomers of B-Mo C14(dpcp)2 2 Preparation of Rh2(02CCM3)4L2 ComPlexes. Physical Measurements. X-ray Crystallography. III RESULTS. 12 12 12 14 18 18 20 20 48... )] Positional and Isotropic Equivalent Thermal Parameters for Rh2(02CCH3)4[(R)-(+)-N(CH )2CH(CH )(C6H )]2 Anisotropic Temperature Factor s (B's) for Rh (0 CCH ) [(R)-(+)-N(CH 2CH CH C6H 47 LIST OF TABLES (continued) TABLE PAGE XVI Important Torsion Angles...

Gibson, Elaine Claire

1985-01-01T23:59:59.000Z

94

Dinuclear Metalloradicals Featuring Unsupported Metal-Metal Bonds...  

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

(PNNL) is a multiprogram national laboratory operated for DOE by Battelle. The EPR and computational studies were performed using EMSL, a national scientific user...

95

Dinuclear Metalloradicals Featuring Unsupported Metal-Metal Bonds. | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesData FilesShape,PhysicsDileep Singh

96

Bonded ultrasonic transducer and method for making  

DOE Patents [OSTI]

An ultrasonic transducer is formed as a diffusion bonded assembly of piezoelectric crystal, backing material, and, optionally, a ceramic wear surface. The mating surfaces of each component are silver films that are diffusion bonded together under the application of pressure and heat. Each mating surface may also be coated with a reactive metal, such as hafnium, to increase the adhesion of the silver films to the component surfaces. Only thin silver films are deposited, e.g., a thickness of about 0.00635 mm, to form a substantially non-compliant bond between surfaces. The resulting transducer assembly is substantially free of self-resonances over normal operating ranges for taking resonant ultrasound measurements. 12 figs.

Dixon, R.D.; Roe, L.H.; Migliori, A.

1995-11-14T23:59:59.000Z

97

Bonded ultrasonic transducer and method for making  

DOE Patents [OSTI]

An ultrasonic transducer is formed as a diffusion bonded assembly of piezoelectric crystal, backing material, and, optionally, a ceramic wear surface. The mating surfaces of each component are silver films that are diffusion bonded together under the application of pressure and heat. Each mating surface may also be coated with a reactive metal, such as hafnium, to increase the adhesion of the silver films to the component surfaces. Only thin silver films are deposited, e.g., a thickness of about 0.00635 mm, to form a substantially non-compliant bond between surfaces. The resulting transducer assembly is substantially free of self-resonances over normal operating ranges for taking resonant ultrasound measurements.

Dixon, Raymond D. (Los Alamos, NM); Roe, Lawrence H. (Los Alamos, NM); Migliori, Albert (Santa Fe, NM)

1995-01-01T23:59:59.000Z

98

Qualified Energy Conservation Bonds (QECBs) - State Issues &...  

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

Qualified Energy Conservation Bonds (QECBs) - State Issues & Approaches Qualified Energy Conservation Bonds (QECBs) - State Issues & Approaches Qualified Energy Conservation Bonds...

99

Wafer-Level Thermocompression Bonds  

E-Print Network [OSTI]

Thermocompression bonding of gold is a promising technique for achieving low temperature, wafer-level bonding without the application of an electric field or complicated pre-bond cleaning procedure. The presence of a ductile ...

Tsau, Christine H.

100

Bond Financing Program (New Hampshire)  

Broader source: Energy.gov [DOE]

BFA’s Bond Financing Program offers tax-exempt and taxable bonds for fixed-asset expansion projects. Industrial development revenue bonds can be used by manufacturers for the acquisition,...

Note: This page contains sample records for the topic "metal oxo bonds" 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

Sequence-Dependent Variation in the Reactivity of 8-Oxo-7,8-dihydro-2?-deoxyguanosine toward Oxidation  

E-Print Network [OSTI]

The goal of this study was to define the effect of DNA sequence on the reactivity of 8-oxo-7,8-dihydro-2?-deoxyguanosine (8-oxodG) toward oxidation. To this end, we developed a quadrupole/time-of-flight (QTOF) mass ...

Lim, Kok Seong

102

Low Temperature Material Bonding Technique  

DOE Patents [OSTI]

A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

2000-10-10T23:59:59.000Z

103

Low temperature material bonding technique  

DOE Patents [OSTI]

A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

2002-02-12T23:59:59.000Z

104

Green Infrastructure Bonds (Hawaii)  

Broader source: Energy.gov [DOE]

In July 2013, Hawaii enacted legislation allowing the Department of Business, Economic Development, and Tourism to issue Green Infrastructure Bonds to secture low-cost financing for clean energy...

105

Bonding aerogels with polyurethanes  

SciTech Connect (OSTI)

Aerogels, porous silica glasses with ultra-fine cell size (30nm), are made by a solution gelation (sol-gel) process. The resulting gel is critical point dried to densities from 0.15--0.60 g/cc. This material is machinable, homogeneous, transparent, coatable and bondable. To bond aerogel an adhesive should have long cure time, no attack on the aerogel structure, and high strength. Several epoxies and urethanes were examined to determine if they satisfied these conditions. Bond strengths above 13 psi were found with double bubble and DP-110 epoxies and XI-208/ODA-1000 and Castall U-2630 urethanes. Hardman Kalex Tough Stuff'' A-85 hardness urethane gave 18 psi bond strength. Hardman A-85, Tuff-Stuff'' was selected for further evaluation because it produced bond strengths comparable to the adherend cohesive strength. 5 refs., 2 figs.

Matthews, F.M.; Hoffman, D.M.

1989-11-01T23:59:59.000Z

106

Water's Hydrogen Bond Strength  

E-Print Network [OSTI]

Water is necessary both for the evolution of life and its continuance. It possesses particular properties that cannot be found in other materials and that are required for life-giving processes. These properties are brought about by the hydrogen bonded environment particularly evident in liquid water. Each liquid water molecule is involved in about four hydrogen bonds with strengths considerably less than covalent bonds but considerably greater than the natural thermal energy. These hydrogen bonds are roughly tetrahedrally arranged such that when strongly formed the local clustering expands, decreasing the density. Such low density structuring naturally occurs at low and supercooled temperatures and gives rise to many physical and chemical properties that evidence the particular uniqueness of liquid water. If aqueous hydrogen bonds were actually somewhat stronger then water would behave similar to a glass, whereas if they were weaker then water would be a gas and only exist as a liquid at sub-zero temperatures. The overall conclusion of this investigation is that water's hydrogen bond strength is poised centrally within a narrow window of its suitability for life.

Martin Chaplin

2007-06-10T23:59:59.000Z

107

Evaluating the Identity and Diiron Core Transformations of a (?-Oxo)diiron(III) Complex Supported by Electron-Rich Tris(pyridyl-2-methyl)amine Ligands  

E-Print Network [OSTI]

The composition of a (?-oxo)diiron(III) complex coordinated by tris[(3,5-dimethyl-4-methoxy)pyridyl-2-methyl]amine (R[subscript 3]TPA) ligands was investigated. Characterization using a variety of spectroscopic methods and ...

Do, Loi H.

108

Thread bonds in molecules  

E-Print Network [OSTI]

Unusual chemical bonds are proposed. Each bond is almost covalent but is characterized by the thread of a small radius $\\sim 0.6\\times 10^{-11}$cm, between two nuclei in a molecule. The main electron density is concentrated outside the thread as in a covalent bond. The thread is formed by the electron wave function which has a tendency to be singular on it. The singularity along the thread is cut off by electron "vibrations" due to the interaction with zero point electromagnetic oscillations. The electron energy has its typical value of (1-10)eV. Due to the small tread radius the uncertainty of the electron momentum inside the thread is large resulting in a large electron kinetic energy $\\sim 1 MeV$. This energy is compensated by formation of a potential well due to the reduction of the energy of electromagnetic zero point oscillations. This is similar to formation of a negative van der Waals potential. Thread bonds are stable and cannot be created or destructed in chemical or optical processes.

Ivlev, B

2015-01-01T23:59:59.000Z

109

Cu-Cu direct bonding achieved by surface method at room temperature  

SciTech Connect (OSTI)

The metal bonding is a key technology in the processes for the microelectromechanical systems (MEMS) devices and the semiconductor devices to improve functionality and higher density integration. Strong adhesion between surfaces at the atomic level is crucial; however, it is difficult to achieve close bonding in such a system. Cu films were deposited on Si substrates by vacuum deposition, and then, two Cu films were bonded directly by means of surface activated bonding (SAB) at room temperature. The two Cu films, with the surface roughness Ra about 1.3nm, were bonded by using SAB at room temperature, however, the bonding strength was very weak in this method. In order to improve the bonding strength between the Cu films, samples were annealed at low temperatures, between 323 and 473 K, in air. As the result, the Cu-Cu bonding strength was 10 times higher than that of the original samples without annealing.

Utsumi, Jun [Advanced Technology Research Center, Mitsubishi Heavy Industries, Ltd., 1-8-1 Sachiura, Kanazawa-ku, Yokohama 236-8515 (Japan); Ichiyanagi, Yuko, E-mail: yuko@ynu.ac.jp [Department of Physics, Graduate School of Engineering, Yokohama National University, Tokiwadai, Hodogaya, Yokohama 240-8501 (Japan)

2014-02-20T23:59:59.000Z

110

Reaction of SC+, Ti+, and V+ with CO. MC+ and MO+ bond energies D. E. Clemmer, J. L. Elkind,") N. Aristov,b) and P. B. Armentrout")  

E-Print Network [OSTI]

the first-row diatomic transition- metal-oxide ions.' The most reliable bond energies for ScO+ , Ti beenmade previously.3*4Thesereaction systemsalso pro- vide bond energiesfor the ionic metal carbides function of translational energy in a guided-ion-beamtandemmassspectrometer.Formation of both metal

Clemmer, David E.

111

Chemistry of Materials 1989, 1,83-101 How C-C Bonds Are Formed and How They Influence  

E-Print Network [OSTI]

, with late transition-metal elements. Early transition-metal carbides of the same composition do not exist Choices in Some Binary and Ternary Metal Carbides 83 Jing Li and Roald Hoffmann* Department of Chemistry The dimeric Czunit has been found in many binary and ternary metal carbide systems. The C-C bond length

Li, Jing

112

Economic Development Bond Program (Iowa)  

Broader source: Energy.gov [DOE]

Through its Economic Development Bond Program, the Iowa Finance Authority (IFA) issues tax-exempt bonds on behalf of private entities or organizations for eligible purposes. The responsibility for...

113

Private Activity Bond Allocation (Missouri)  

Broader source: Energy.gov [DOE]

The Private Activity Bond Allocation Program provides low-interest financing through tax-exempt bonds for certain types of projects, including electric and gas utility projects. Eligible applicants...

114

Albert Bond | Department of Energy  

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

Bond - Project Officer, Golden Field Office Albert Bond is a Project Officer at the Golden Field Office. Most Recent New Choctaw Nation Recycling Center Posts Quick Results March 8...

115

Bond and Loan Program (Arkansas)  

Broader source: Energy.gov [DOE]

The Bond and Loan programs of Arkansas are four programs designed to attract small business development within the state.

116

Method of coating metal surfaces to form protective metal coating thereon  

DOE Patents [OSTI]

A process is disclosed for forming a protective metal coating on a metal surface using a flux consisting of an alkali metal fluoride, an alkaline earth metal fluoride, an alkali metal fluoaluminate, an alkali metal fluosilicate, and mixtures thereof. The flux, in particulate form, is mixed with particles of a metal coating material which may comprise aluminum, chromium, mixtures thereof, and alloys containing at least 50 wt. % aluminum and the particulate mixture is applied to the metal surface in a single step, followed by heating the coated metal surface to a temperature sufficient to cause the metal coating material to react with the metal surface to form a protective reaction product in the form of a metal coating bonded to the metal surface. The metal surface which reacts with the metal coating material to form the protective coating may comprise Fe, Co, Ni, Ti, V, Cr, Mn, Zr, Nb, Mo, Tc, Hf, Ta, W, Re and alloys thereof. 1 figure.

Krikorian, O.H.; Curtis, P.G.

1992-03-31T23:59:59.000Z

117

Structural and bonding trends in platinum-carbon clusters  

E-Print Network [OSTI]

. Trends in stability, Pt+-Cx binding energy, doublet-quartet excitation energy, and Pt-C bond lengths were investigated. Explanations for these patterns are provided in terms of orbital interactions and changes imposed on the carbon-chain by the metal...

Miller, Thomas F

2013-02-22T23:59:59.000Z

118

Hybrid Two-Dimensional Electronic Systems and Other Applications of sp-2 Bonded Light Elements  

E-Print Network [OSTI]

A.4 A.5 vii List of Tables DOE Hydrogen Storage Targets forsp-2 Bonded Materials 5 Hydrogen Storage 5.1 Motivation andJeffrey R. Long. Hydrogen storage in a microporous metal-

Kessler, Brian Maxwell

2010-01-01T23:59:59.000Z

119

Partial-Transient-Liquid-Phase Bonding of Advanced Ceramics Using Surface-Modified Interlayers  

E-Print Network [OSTI]

of Thermal Residual Stresses in Joining Ceramics with ThinIn ceramic/metal/ceramic bonds that undergo thermal cycling,cooling or thermal cycling of the component. Ceramics are

Reynolds, Thomas Bither

2012-01-01T23:59:59.000Z

120

Experimental and Theoretical Examination of C-CN Bond Activation of Benzonitrile Using Zerovalent Nickel  

E-Print Network [OSTI]

are important in industrial petroleum refining.1 The transition metal catalyzed activation of C-C bonds has been used in organic synthesis, for which the beneficial features of atom economy and chemoselectivity have

Jones, William D.

Note: This page contains sample records for the topic "metal oxo bonds" 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

Chemically bonded phospho-silicate ceramics  

DOE Patents [OSTI]

A chemically bonded phospho-silicate ceramic formed by chemically reacting a monovalent alkali metal phosphate (or ammonium hydrogen phosphate) and a sparsely soluble oxide, with a sparsely soluble silicate in an aqueous solution. The monovalent alkali metal phosphate (or ammonium hydrogen phosphate) and sparsely soluble oxide are both in powder form and combined in a stochiometric molar ratio range of (0.5-1.5):1 to form a binder powder. Similarly, the sparsely soluble silicate is also in powder form and mixed with the binder powder to form a mixture. Water is added to the mixture to form a slurry. The water comprises 50% by weight of the powder mixture in said slurry. The slurry is allowed to harden. The resulting chemically bonded phospho-silicate ceramic exhibits high flexural strength, high compression strength, low porosity and permeability to water, has a definable and bio-compatible chemical composition, and is readily and easily colored to almost any desired shade or hue.

Wagh, Arun S. (Orland Park, IL); Jeong, Seung Y. (Westmont, IL); Lohan, Dirk (Chicago, IL); Elizabeth, Anne (Chicago, IL)

2003-01-01T23:59:59.000Z

122

Synthesis and Exploratory Catalysis of 3d Metals: Group-Transfer Reactions, and the Activation and Functionalization of Small Molecules Including Greenhouse Gases  

SciTech Connect (OSTI)

Our work over the past three years has resulted in the development of electron rich and low-coordinate vanadium fragments, molecular nitrides of vanadium and parent imide systems of titanium, and the synthesis of phosphorus containing molecules of the 3d transition metal series. Likewise, with financial support from BES Division in DOE (DE-FG02-07ER15893), we now completed the full characterization of the first single molecular magnet (SMM) of Fe(III). We demonstrated that this monomeric form of Fe(III) has an unusual slow relaxation of the magnetization under zero applied field. To make matters more interesting, this system also undergoes a rare example of an intermediate to high-spin transition (an S = 3/2 to S = 5/2 transition). In 2010 we reported the synthesis of the first neutral and low-coordinate vanadium complexes having the terminal nitride functionality. We have now completed a full study to understand formation of the nitride ligand from the metastable azide precursor, and have also explored the reactivity of the nitride ligand in the context of incomplete and complete N-atom transfer. During the 2010-2013 period we also discovered a facile approach to assemble low-coordinate and low-valent vanadium(II) complexes and exploit their multielectron chemistry ranging from 1-3 electrons. Consequently, we can now access 3d ligand frameworks such as cyclo-P3 (and its corresponding radical anion), nitride radical anions and cations, low-coordinate vanadium oxo’s, and the first example of a vanadium thionitrosyl complex. A cis-divacant iron(IV) imido having some ligand centered radical has been also discovered, and we are in the process of elucidating its electronic structure (in particular the sign of zero field splitting and the origin of its magnitude), bonding and reactivity. We have also revisited some paramagnetic and classic metallocene compounds with S >1/2 ground states in order to understand their reactivity patterns and electronic structure. Lastly, we are completing the synthesis and characterization of a titanium nitride anion and formation of the first example of boryl and aluminyl imido titanium complexes.

Mindiola, Daniel J.

2014-05-07T23:59:59.000Z

123

Ceramic to metal attachment system. [Ceramic electrode to metal conductor in MHD generator  

DOE Patents [OSTI]

A composition and method are described for attaching a ceramic electrode to a metal conductor. A layer of randomly interlocked metal fibers saturated with polyimide resin is sandwiched between the ceramic electrode and the metal conductor. The polyimide resin is then polymerized providing bonding.

Marchant, D.D.

1983-06-10T23:59:59.000Z

124

Qualified Energy Conservation Bonds (Ohio)  

Broader source: Energy.gov [DOE]

The Ohio Air Quality Development Authority (OAQDA) administers the Qualified Energy Conservation Bonds (QECB) program in Ohio. QECBs have been used by local governments and public universities to...

125

Investigation of bonding strength and sealing behavior of aluminum/stainless steel bonded at room temperature  

E-Print Network [OSTI]

], spark welding [3], explosive bonding [4], and diffusion bonding [5,6]. However, the processing such as diffusion bonding [5,6], friction welding [7e11], vacuum roll bonding [12] and hot roll bonding [13Investigation of bonding strength and sealing behavior of aluminum/stainless steel bonded at room

Howlader, Matiar R

126

Method for bonding thin film thermocouples to ceramics  

DOE Patents [OSTI]

A method is provided for adhering a thin film metal thermocouple to a ceramic substrate used in an environment up to 700 degrees Centigrade, such as at a cylinder of an internal combustion engine. The method includes the steps of: depositing a thin layer of a reactive metal on a clean ceramic substrate; and depositing thin layers of platinum and a platinum-10% rhodium alloy forming the respective legs of the thermocouple on the reactive metal layer. The reactive metal layer serves as a bond coat between the thin noble metal thermocouple layers and the ceramic substrate. The thin layers of noble metal are in the range of 1-4 micrometers thick. Preferably, the ceramic substrate is selected from the group consisting of alumina and partially stabilized zirconia. Preferably, the thin layer of reactive metal is in the range of 0.015-0.030 micrometers (15-30 nanometers) thick. The preferred reactive metal is chromium. Other reactive metals may be titanium or zirconium. The thin layer of reactive metal may be deposited by sputtering in ultra high purity argon in a vacuum of approximately 2 milliTorr (0.3 Pascals).

Kreider, Kenneth G. (Potomac, MD)

1993-01-01T23:59:59.000Z

127

Metal deposition using seed layers  

DOE Patents [OSTI]

Methods of forming a conductive metal layers on substrates are disclosed which employ a seed layer to enhance bonding, especially to smooth, low-roughness or hydrophobic substrates. In one aspect of the invention, the seed layer can be formed by applying nanoparticles onto a surface of the substrate; and the metallization is achieved by electroplating an electrically conducting metal onto the seed layer, whereby the nanoparticles serve as nucleation sites for metal deposition. In another approach, the seed layer can be formed by a self-assembling linker material, such as a sulfur-containing silane material.

Feng, Hsein-Ping; Chen, Gang; Bo, Yu; Ren, Zhifeng; Chen, Shuo; Poudel, Bed

2013-11-12T23:59:59.000Z

128

Steel bonded dense silicon nitride compositions and method for their fabrication  

DOE Patents [OSTI]

A two-stage bonding technique for bonding high density silicon nitride and other ceramic materials to stainless steel and other hard metals, and multilayered ceramic-metal composites prepared by the technique are disclosed. The technique involves initially slurry coating a surface of the ceramic material at about 1500/sup 0/C in a vacuum with a refractory material and the stainless steel is then pressure bonded to the metallic coated surface by brazing it with nickel-copper-silver or nickel-copper-manganese alloys at a temperature in the range of about 850/sup 0/ to 950/sup 0/C in a vacuum. The two-stage bonding technique minimizes the temperature-expansion mismatch between the dissimilar materials.

Landingham, R.L.; Shell, T.E.

1985-05-20T23:59:59.000Z

129

Quantum Confinement in Hydrogen Bond  

E-Print Network [OSTI]

In this work, the quantum confinement effect is proposed as the cause of the displacement of the vibrational spectrum of molecular groups that involve hydrogen bonds. In this approach the hydrogen bond imposes a space barrier to hydrogen and constrains its oscillatory motion. We studied the vibrational transitions through the Morse potential, for the NH and OH molecular groups inside macromolecules in situation of confinement (when hydrogen bonding is formed) and non-confinement (when there is no hydrogen bonding). The energies were obtained through the variational method with the trial wave functions obtained from Supersymmetric Quantum Mechanics (SQM) formalism. The results indicate that it is possible to distinguish the emission peaks related to the existence of the hydrogen bonds. These analytical results were satisfactorily compared with experimental results obtained from infrared spectroscopy.

Santos, Carlos da Silva dos; Ricotta, Regina Maria

2015-01-01T23:59:59.000Z

130

Method for vacuum fusion bonding  

DOE Patents [OSTI]

An improved vacuum fusion bonding structure and process for aligned bonding of large area glass plates, patterned with microchannels and access holes and slots, for elevated glass fusion temperatures. Vacuum pumpout of all components is through the bottom platform which yields an untouched, defect free top surface which greatly improves optical access through this smooth surface. Also, a completely non-adherent interlayer, such as graphite, with alignment and location features is located between the main steel platform and the glass plate pair, which makes large improvements in quality, yield, and ease of use, and enables aligned bonding of very large glass structures.

Ackler, Harold D. (Sunnyvale, CA); Swierkowski, Stefan P. (Livermore, CA); Tarte, Lisa A. (Livermore, CA); Hicks, Randall K. (Stockton, CA)

2001-01-01T23:59:59.000Z

131

Fusion bonding and alignment fixture  

DOE Patents [OSTI]

An improved vacuum fusion bonding structure and process for aligned bonding of large area glass plates, patterned with microchannels and access holes and slots, for elevated glass fusion temperatures. Vacuum pumpout of all the components is through the bottom platform which yields an untouched, defect free top surface which greatly improves optical access through this smooth surface. Also, a completely non-adherent interlayer, such as graphite, with alignment and location features is located between the main steel platform and the glass plate pair, which makes large improvements in quality, yield, and ease of use, and enables aligned bonding of very large glass structures.

Ackler, Harold D. (Sunnyvale, CA); Swierkowski, Stefan P. (Livermore, CA); Tarte, Lisa A. (Livermore, CA); Hicks, Randall K. (Stockton, CA)

2000-01-01T23:59:59.000Z

132

New Clean Renewable Energy Bonds | Department of Energy  

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

New Clean Renewable Energy Bonds New Clean Renewable Energy Bonds New clean renewable energy bonds (CREBs) are tax credit bonds, the proceeds of which are used for capital...

133

Qualified Energy Conservation Bonds (QECBs) & New Clean Renewable...  

Energy Savers [EERE]

Qualified Energy Conservation Bonds (QECBs) & New Clean Renewable Energy Bonds (New CREBs) Qualified Energy Conservation Bonds (QECBs) & New Clean Renewable Energy Bonds (New...

134

Nanocomposite of graphene and metal oxide materials  

DOE Patents [OSTI]

Nanocomposite materials comprising a metal oxide bonded to at least one graphene material. The nanocomposite materials exhibit a specific capacity of at least twice that of the metal oxide material without the graphene at a charge/discharge rate greater than about 10C.

Liu, Jun; Aksay, Ilhan A.; Choi, Daiwon; Wang, Donghai; Yang, Zhenguo

2012-09-04T23:59:59.000Z

135

Low Temperature Material Bonding Techniq Ue  

DOE Patents [OSTI]

A method of performing a lower temperature bonding technique to bond together two mating pieces of glass includes applying a sodium silicate aqueous solution between the two pieces.

Ramsey, J. Michael (Knoxville, TN); Foote, Robert S. (Oak Ridge, TN)

2002-08-06T23:59:59.000Z

136

Pooled Bond Program (South Dakota)  

Broader source: Energy.gov [DOE]

The Pooled Bond Program offered by the Economic Development Finance Authority is designed for capital intensive projects, providing small businesses access to larger capital markets for tax-exempt...

137

Understanding mechanisms for C-H bond activation  

E-Print Network [OSTI]

is unclear as electrophilic and oxidative addition / reductive elimination (OA/RE) pathways have been proposed, and the research into this problem and other related aspects of this chemistry have been extensively considered in several books 18 and reviews... been proposed that lie between the two classic mechanisms that were discussed above; Lin has recently reviewed the current work in this field. 41 Webster and coworkers proposed metal-assisted ?-bond metathesis (MA?BM), 42 Lin and coworkers...

Vastine, Benjamin Alan

2009-05-15T23:59:59.000Z

138

Stabilization of Electrocatalytic Metal Nanoparticles at Metal...  

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

Electrocatalytic Metal Nanoparticles at Metal-Metal Oxide-Graphene Triple Junction Points. Stabilization of Electrocatalytic Metal Nanoparticles at Metal-Metal Oxide-Graphene...

139

Adhesion, Atomic Structure, and Bonding at theAdhesion, Atomic Structure, and Bonding at the ----AlAl22OO33(0001)/Al(111) Interface:(0001)/Al(111) Interface  

E-Print Network [OSTI]

Adhesion, Atomic Structure, and Bonding at theAdhesion, Atomic Structure, and Bonding at the ----AlAl22OO33(0001)/Al(111) Interface:(0001)/Al(111) Interface: A First Principles StudyA First Principles--ceramic interfaces are ubiquitous in many industrial applications: ­ Microelectronics ­ Al and other metals

Adams, James B

140

The millimeter/submillimeter spectrum of LiSH (~XX1 further investigations of the metalsulfur bond  

E-Print Network [OSTI]

. These species were created by the reaction of H2S or D2S and lithium vapor in a dc discharge. Extensive Ka. Although metal­oxygen bonds are quite common in multiple areas such as combustion, corrosive processes

Ziurys, Lucy M.

Note: This page contains sample records for the topic "metal oxo bonds" 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.


141

IEEE TRANSACTIONS ON ADVANCED PACKAGING, VOL. 32, NO. 2, MAY 2009 461 Ultrasonic Bonding for MEMS Sealing and Packaging  

E-Print Network [OSTI]

, dissimilar materials such as ceramic and metal plates can be joined together with this method [8]. Ultrasonic utilizing the solid phase vibration and welding process to bond two elements rapidly at low temperature. Two purely mechanical vibration energy to enable low temperature bonding between similar or dissimilar

Lin, Liwei

142

Method for joining carbon-carbon composites to metals  

DOE Patents [OSTI]

A method for joining carbon-carbon composites to metals by brazing. Conventional brazing of recently developed carbon-bonded carbon fiber (CBCF) material to a metal substrate is limited by the tendency of the braze alloy to ``wick`` into the CBCF composite rather than to form a strong bond. The surface of the CBCF composite that is to be bonded is first sealed with a fairly dense carbonaceous layer achieved by any of several methods. The sealed surface is then brazed to the metal substrate by vacuum brazing with a Ti-Cu-Be alloy. 1 fig.

Lauf, R.J.; McMillan, A.D.; Moorhead, A.J.

1997-07-15T23:59:59.000Z

143

Method for joining carbon-carbon composites to metals  

DOE Patents [OSTI]

A method for joining carbon-carbon composites to metals by brazing. Conventional brazing of recently developed carbon-bonded carbon fiber (CBCF) material to a metal substrate is limited by the tendency of the braze alloy to "wick" into the CBCF composite rather than to form a strong bond. The surface of the CBCF composite that is to be bonded is first sealed with a fairly dense carbonaceous layer achieved by any of several methods. The sealed surface is then brazed to the metal substrate by vacuum brazing with a Ti-Cu-Be alloy.

Lauf, Robert J. (Oak Ridge, TN); McMillan, April D. (Knoxville, TN); Moorhead, Arthur J. (Knoxville, TN)

1997-01-01T23:59:59.000Z

144

Metal interactions and activities of truncated and extended hammerhead ribozyme constructs  

E-Print Network [OSTI]

The hammerhead ribozyme (HHRz) catalyzes a site-specific phosphodiester bond cleavage reaction that is enhanced by the presence of metal cations. Metal cations are thought to aid in the folding and possibly the catalytic mechanism of this ribozyme...

Osborne, Edith Marie

2007-04-25T23:59:59.000Z

145

CONVERTIBLE BONDS IN A DEFAULTABLE DIFFUSION MODEL  

E-Print Network [OSTI]

CONVERTIBLE BONDS IN A DEFAULTABLE DIFFUSION MODEL Tomasz R. Bielecki Department of Applied Research Grant PS12918. #12;2 Convertible Bonds in a Defaultable Diffusion Model 1 Introduction In [4), such as Convertible Bonds (CB), and we provided a rigorous decomposition of a CB into a bond component and a (game

Jeanblanc, Monique

146

Three methods to measure RH bond energies  

SciTech Connect (OSTI)

In this paper the authors compare and contrast three powerful methods for experimentally measuring bond energies in polyatomic molecules. The methods are: radical kinetics; gas phase acidity cycles; and photoionization mass spectroscopy. The knowledge of the values of bond energies are a basic piece of information to a chemist. Chemical reactions involve the making and breaking of chemical bonds. It has been shown that comparable bonds in polyatomic molecules, compared to the same bonds in radicals, can be significantly different. These bond energies can be measured in terms of bond dissociation energies.

Berkowitz, J. [Argonne National Lab., IL (United States); Ellison, G.B. [Univ. of Colorado, Boulder, CO (United States). Dept. of Chemistry and Biochemistry; Gutman, D. [Catholic Univ. of America, Washington, DC (United States). Dept. of Chemistry

1993-03-21T23:59:59.000Z

147

Ideally Glassy Hydrogen Bonded Networks  

E-Print Network [OSTI]

The axiomatic theory of ideally glassy networks, which has proved effective in describing phase diagrams and properties of chalcogenide and oxide glasses and their foreign interfaces, is broadened here to include intermolecular interactions in hydrogen-bonded polyalcohols such as glycerol, monosaccharides (glucose), and the optimal bioprotective hydrogen-bonded disaccharide networks formed from trehalose. The methods of Lagrangian mechanics and Maxwellian scaffolds are useful at the molecular level when bonding hierarchies are characterized by constraint counting similar to the chemical methods used by Huckel and Pauling. Whereas Newtonian molecular dynamical methods are useful for simulating large-scale interactions for times of order 10 ps, constraint counting describes network properties on glassy (almost equilibrated) time scales, which may be of cosmological order for oxide glasses, or years for trehalose. The ideally glassy network of trehalose may consist of extensible tandem sandwich arrays.

J. C. Phillips

2005-08-05T23:59:59.000Z

148

Shaking the bonds: Atomic vibrations drive insulator to metal...  

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

phase stability for more than 50 years. When heated to just above room temperature, the material undergoes an abrupt transformation from an electrical insulator to a conducting...

149

Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2}: A new bismuth oxo-selenite bromide  

SciTech Connect (OSTI)

A new bismuth oxo-selenite bromide Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2} was synthesized and structurally characterized. The crystal structure belongs to the triclinic system (space group P1-bar , Z=2, a=7.1253(7) A, b=10.972(1) A, c=12.117(1) A, {alpha}=67.765(7) Degree-Sign , {beta}=82.188(8) Degree-Sign , {gamma}=78.445(7) Degree-Sign ) and is unrelated to those of other known oxo-selenite halides. It can be considered as an open framework composed of BiO{sub x} or BiO{sub y}Br{sub z} polyhedrons forming channels running along [1 0 0] direction which contain the selenium atoms in pyramidal shape oxygen coordination (SeO{sub 3}E). The spectroscopic properties and thermal stability were studied. The new compound is stable up to 400 Degree-Sign C. - graphical abstract: New bismuth oxo-selenite bromide with new open framework structure. Highlights: Black-Right-Pointing-Pointer New bismuth oxo-selenite bromide was found and structurally characterized. Black-Right-Pointing-Pointer Bi{sub 6}(SeO{sub 3}){sub 3}O{sub 5}Br{sub 2} exhibit a new open framework structure type. Black-Right-Pointing-Pointer BiO{sub x} or BiO{sub y}Br{sub z} polyhedrons form channels in the structure which are decorated by [SeO{sub 3}E] groups.

Berdonosov, Peter S., E-mail: berdonosov@inorg.chem.msu.ru [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation); Olenev, Andrei V. [SineTheta Ltd., MSU Building 1-77, 119991 Moscow (Russian Federation)] [SineTheta Ltd., MSU Building 1-77, 119991 Moscow (Russian Federation); Kirsanova, Maria A. [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)] [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation); Lebed, Julia B. [Institute for nuclear research RAS, 142190, Troitsk, Moscow region (Russian Federation)] [Institute for nuclear research RAS, 142190, Troitsk, Moscow region (Russian Federation); Dolgikh, Valery A. [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)] [Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow (Russian Federation)

2012-12-15T23:59:59.000Z

150

Metal aminoboranes  

DOE Patents [OSTI]

Metal aminoboranes of the formula M(NH2BH3)n have been synthesized. Metal aminoboranes are hydrogen storage materials. Metal aminoboranes are also precursors for synthesizing other metal aminoboranes. Metal aminoboranes can be dehydrogenated to form hydrogen and a reaction product. The reaction product can react with hydrogen to form a hydrogen storage material. Metal aminoboranes can be included in a kit.

Burrell, Anthony K.; Davis, Benjamin J.; Thorn, David L.; Gordon, John C.; Baker, R. Thomas; Semelsberger, Troy Allen; Tumas, William; Diyabalanage, Himashinie Vichalya; Shrestha, Roshan P.

2010-05-11T23:59:59.000Z

151

Bonded polyimide fuel cell package  

DOE Patents [OSTI]

Described herein are processes for fabricating microfluidic fuel cell systems with embedded components in which micron-scale features are formed by bonding layers of DuPont Kapton.TM. polyimide laminate. A microfluidic fuel cell system fabricated using this process is also described.

Morse, Jeffrey D.; Jankowski, Alan; Graff, Robert T.; Bettencourt, Kerry

2010-06-08T23:59:59.000Z

152

Materials Science and Engineering A 496 (2008) 501-506 Joining Ceramics to Metals  

E-Print Network [OSTI]

ductility enhances the resistance of the joint to thermal cycling; AlN-Inconel 600 bonds exhibited good thermal shock resistance. Alumina- stainless steel bonds withstood more that 60 thermal cycles between 200Materials Science and Engineering A 496 (2008) 501-506 1 Joining Ceramics to Metals using Metallic

Cambridge, University of

153

Self assembled multi-layer nanocomposite of graphene and metal oxide materials  

DOE Patents [OSTI]

Nanocomposite materials having at least two layers, each layer consisting of one metal oxide bonded to at least one graphene layer were developed. The nanocomposite materials will typically have many alternating layers of metal oxides and graphene layers, bonded in a sandwich type construction and will be incorporated into an electrochemical or energy storage device.

Liu, Jun; Aksay, Ilhan A; Choi, Daiwon; Kou, Rong; Nie, Zimin; Wang, Donghai; Yang, Zhenguo

2013-10-22T23:59:59.000Z

154

Self assembled multi-layer nanocomposite of graphene and metal oxide materials  

SciTech Connect (OSTI)

Nanocomposite materials having at least two layers, each layer consisting of one metal oxide bonded to at least one graphene layer were developed. The nanocomposite materials will typically have many alternating layers of metal oxides and graphene layers, bonded in a sandwich type construction and will be incorporated into an electrochemical or energy storage device.

Liu, Jun; Choi, Daiwon; Kou, Rong; Nie, Zimin; Wang, Donghai; Yang, Zhenguo

2014-09-16T23:59:59.000Z

155

Innovative use of adhesive interface characteristics to nondestructively quantify the strength of bonded joints.  

SciTech Connect (OSTI)

Advances in structural adhesives have permitted engineers to contemplate the use of bonded joints in areas that have long been dominated by mechanical fasteners and welds. Although strength, modulus, and toughness have been improved in modern adhesives, the typical concerns with using these polymers still exist. These include concerns over long-term durability and an inability to quantify bond strength (i.e., identify weak bonds) in adhesive joints. Bond deterioration in aging structures and bond strength in original construction are now critical issues that require more than simple flaw detection. Whether the structure involves metallic or composite materials, it is necessary to extend inspections beyond the detection of disbond flaws to include an assessment of the strength of the bond. Use of advanced nondestructive inspection (NDI) methods to measure the mechanical properties of a bonded joint and associated correlations with post-inspection failure tests have provided some clues regarding the key parameters involved in assessing bond strength. Recent advances in ultrasonic- and thermographic-based inspection methods have shown promise for measuring such properties. Specialized noise reduction and signal enhancement schemes have allowed thermographic interrogations to image the subtle differences between bond lines of various strengths. Similarly, specialized ultrasonic (UT) inspection techniques, including laser UT, guided waves, UT spectroscopy, and resonance methods, can be coupled with unique signal analysis algorithms to accurately characterize the properties of weak interfacial bonds. The generation of sufficient energy input levels to derive bond strength variations, the production of sufficient technique sensitivity to measure such minor response variations, and the difficulty in manufacturing repeatable weak bond specimens are all issues that exacerbate these investigations. The key to evaluating the bond strength lies in the ability to exploit the critical characteristics of weak bonds such as nonlinear responses, poor transmission of shear waves, and changes in response to stiffness-based interrogations. This paper will present several ongoing efforts that have identified promising methods for quantifying bond strength and discuss some completed studies that provide a foundation for further evolution in weak bond assessments.

Roach, Dennis Patrick; Duvall, Randy L.; Rackow, Kirk A.

2010-05-01T23:59:59.000Z

156

Rhodium-Catalyzed C-C Bond Formation via Heteroatom-Directed C-H Bond Activation  

SciTech Connect (OSTI)

Once considered the 'holy grail' of organometallic chemistry, synthetically useful reactions employing C-H bond activation have increasingly been developed and applied to natural product and drug synthesis over the past decade. The ubiquity and relative low cost of hydrocarbons makes C-H bond functionalization an attractive alternative to classical C-C bond forming reactions such as cross-coupling, which require organohalides and organometallic reagents. In addition to providing an atom economical alternative to standard cross - coupling strategies, C-H bond functionalization also reduces the production of toxic by-products, thereby contributing to the growing field of reactions with decreased environmental impact. In the area of C-C bond forming reactions that proceed via a C-H activation mechanism, rhodium catalysts stand out for their functional group tolerance and wide range of synthetic utility. Over the course of the last decade, many Rh-catalyzed methods for heteroatom-directed C-H bond functionalization have been reported and will be the focus of this review. Material appearing in the literature prior to 2001 has been reviewed previously and will only be introduced as background when necessary. The synthesis of complex molecules from relatively simple precursors has long been a goal for many organic chemists. The ability to selectively functionalize a molecule with minimal pre-activation can streamline syntheses and expand the opportunities to explore the utility of complex molecules in areas ranging from the pharmaceutical industry to materials science. Indeed, the issue of selectivity is paramount in the development of all C-H bond functionalization methods. Several groups have developed elegant approaches towards achieving selectivity in molecules that possess many sterically and electronically similar C-H bonds. Many of these approaches are discussed in detail in the accompanying articles in this special issue of Chemical Reviews. One approach that has seen widespread success involves the use of a proximal heteroatom that serves as a directing group for the selective functionalization of a specific C-H bond. In a survey of examples of heteroatom-directed Rh catalysis, two mechanistically distinct reaction pathways are revealed. In one case, the heteroatom acts as a chelator to bind the Rh catalyst, facilitating reactivity at a proximal site. In this case, the formation of a five-membered metallacycle provides a favorable driving force in inducing reactivity at the desired location. In the other case, the heteroatom initially coordinates the Rh catalyst and then acts to stabilize the formation of a metal-carbon bond at a proximal site. A true test of the utility of a synthetic method is in its application to the synthesis of natural products or complex molecules. Several groups have demonstrated the applicability of C-H bond functionalization reactions towards complex molecule synthesis. Target-oriented synthesis provides a platform to test the effectiveness of a method in unique chemical and steric environments. In this respect, Rh-catalyzed methods for C-H bond functionalization stand out, with several syntheses being described in the literature that utilize C-H bond functionalization in a key step. These syntheses are highlighted following the discussion of the method they employ.

Colby, Denise; Bergman, Robert; Ellman, Jonathan

2010-05-13T23:59:59.000Z

157

The Market for Borrowing Corporate Bonds  

E-Print Network [OSTI]

This paper describes the market for borrowing corporate bonds using a comprehensive data set from a major lender. The cost of borrowing corporate bonds is comparable to the cost of borrowing stock, between 10 and 20 basis ...

Asquith, Paul

158

Industrial Revenue Bond Issuance Cost Assistance (Wisconsin)  

Broader source: Energy.gov [DOE]

Industrial Revenue Bonds (IRB) are tax-exempt bonds that can be used to stimulate capital investment and job creation by providing private borrowers with access to financing at interest rates that...

159

Major Business Expansion Bond Program (Maine)  

Broader source: Energy.gov [DOE]

The Major Business Expansion Bond Program provides long-term, credit-enhanced financing up to $25,000,000 at taxable bond rates for businesses creating or retaining at least 50 jobs; up to $10,000...

160

Secondary Market Taxable Bond Program (Maine)  

Broader source: Energy.gov [DOE]

The Secondary Market Taxable Bond Program provides tax-exempt interest rate bond financing for real estate and machinery and equipment acquisitions. Up to 90% of the project debt may be financed,...

Note: This page contains sample records for the topic "metal oxo bonds" 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

Method of measuring metal coating adhesion  

DOE Patents [OSTI]

A method for measuring metal coating adhesion to a substrate material comprising the steps of preparing a test coupon of substrate material having the metal coating applied to one surface thereof, applying a second metal coating of gold or silver to opposite surfaces of the test coupon by hot hollow cathode process, applying a coating to one end of each of two pulling rod members, joining the coated ends of the pulling rod members to said opposite coated surfaces of the test coupon by a solid state bonding technique and finally applying instrumented static tensile loading to the pulling rod members until fracture of the metal coating adhesion to the substrate material occurs.

Roper, John R. (Northglenn, CO)

1985-01-01T23:59:59.000Z

162

Bonded, walk-off compensated optical elements  

DOE Patents [OSTI]

A bonded, walk-off compensated crystal, for use with optical equipment, and methods of making optical components including same.

Ebbers, Christopher A. (Livermore, CA)

2003-04-08T23:59:59.000Z

163

Study of bump bonding technology  

SciTech Connect (OSTI)

Pixel detectors proposed for the new generation of hadron collider experiments will use bump-bonding technology based on either indium or Pb/Sn solder to connect the front-end readout chips to the silicon pixel sensors. We have previously reported large-scale tests of the yield using both indium and Pb/Sn solder bump [1]. The conclusion is that both seem to be viable for pixel detectors. We have also carried out studies of various effects (e.g. storage over long period, effect of heating and cooling, and radiation) on both types of bump bonds using daisy-chained parts on a small scale [2], [3]. Overall, these tests showed little changes in the integrity of the bump connections. Nevertheless, questions still remain on the long-term reliability of the bumps due to thermal cycle effects, attachment to a substrate with a different coefficient of thermal expansion (CTE), and radiation.

Selcuk Cihangir et al.

2003-10-17T23:59:59.000Z

164

Interaction of an aluminum atom with a closed subshell metal atom: Spectroscopic analysis of AlZn  

E-Print Network [OSTI]

Interaction of an aluminum atom with a closed subshell metal atom: Spectroscopic analysis of Al-block main group element, aluminum, and the 3d series of transi- tion metal atoms. Although the bonding in Al

Morse, Michael D.

165

Clean Energy and Bond Finance Initiative  

Broader source: Energy.gov [DOE]

Provides information on Clean Energy and Bond Finance Initiative (CE+BFI). CE+BFI brings together public infrastructure finance agencies, clean energy public fund managers and institutional investors across the country to explore how to raise capital at scale for clean energy development through bond financing. Author: Clean Energy and Bond Finance Initiative

166

Explosion bonding of dissimilar materials for fabricating APS front end components: Analysis of metallurgical and mechanical properties and UHV applications  

SciTech Connect (OSTI)

The front end beamline section contains photon shutters and fixed masks. These components are made of OFHC copper and GlidCOP AL-15. Stainless steels (304 or 316) are also used for connecting photon shutters and fixed masks to other components that operate in the ultrahigh vacuum system. All these dissimilar materials need to be joined together. However, bonding these dissimilar materials is very difficult because of their different mechanical and thermal properties and incompatible metallurgical properties. Explosion bonding is a bonding method in which the controlled energy of a detonating explosive is used to create a metallurgical bond between two or more similar or dissimilar materials. No intermediate filler metal, for example, a brazing compound or soldering alloy, is needed to promote bonding, and no external heat need be applied. A study of the metallurgical and mechanical properties and YGV applications of GlidCop AL-15, OFHC copper, and 304 stainless steel explosion-bonded joints has been done. This report contains five parts: an ultrasonic examination of explosion-bonded joints and a standard setup; mechanical-property and thermal-cycle tests of GlidCop AL-15/304 stainless steel explosion-bonded joints; leak tests of a GlidCop AL-15/304 stainless steel explosion-bonded interfaces for UHV application; metallurgical examination of explosion-bonded interfaces and failure analysis, and discussion and conclusion.

Li, Yuheng; Shu, Deming; Kuzay, T.M.

1994-06-15T23:59:59.000Z

167

Metallization and insulization during impact  

SciTech Connect (OSTI)

It is pointed out that the large strains produced by hypervelocity impacts can be expected to produce dramatic changes in the chemical bonding (electronic structures) of materials. This will change the mechanical behavior towards increased ductility when a semiconductor is compressed until it becomes metallic; and towards increased brittleness when a transition metal is expanded so as to localize its d-band electrons. Both isotropic compression (expansion) and shear strains can cause these transformations. Critical deformation criteria are given based on the observed cubic to tetragonal transformations in compressed semiconductors.

Gilman, J.J.

1992-10-01T23:59:59.000Z

168

Hydrogen Bonded Arrays: The Power of Multiple Hydrogen Bonds. | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinement plasmasSandy-Nor'easterStatisticalwithRhodiumFew-LayerBonded

169

Method of making cascaded die mountings with springs-loaded contact-bond options  

DOE Patents [OSTI]

A cascaded die mounting device and method using spring contacts for die attachment, with or without metallic bonds between the contacts and the dies, is disclosed. One embodiment is for the direct refrigerant cooling of an inverter/converter carrying higher power levels than most of the low power circuits previously taught, and does not require using a heat sink.

Hsu, John S. (Oak Ridge, TN); Adams, Donald J. (Knoxville, TN); Su, Gui-Jia (Knoxville, TN); Marlino, Laura D. (Oak Ridge, TN); Ayers, Curtis W. (Kingston, TN); Coomer, Chester (Knoxville, TN)

2007-06-19T23:59:59.000Z

170

Cascaded die mountings with spring-loaded contact-bond options  

DOE Patents [OSTI]

A cascaded die mounting device and method using spring contacts for die attachment, with or without metallic bonds between the contacts and the dies, is disclosed. One embodiment is for the direct refrigerant cooling of an inverter/converter carrying higher power levels than most of the low power circuits previously taught, and does not require using a heat sink.

Hsu, John S.; Adams, Donald J.; Su, Gui-Jia; Marlino, Laura D.; Ayers, Curtis W.; Coomer, Chester

2005-08-16T23:59:59.000Z

171

1 Reactivity Differences of Pt0 Phosphine Complexes in C-C Bond  

E-Print Network [OSTI]

) upon irradiation with UV light (>300 nm). In comparison, dtbpe 14 analogues of these metal complexes-H bond activa- 26 tions have found many successful applications in organic 27 synthesis and industrial into useful raw 31 materials1 and could offer potential applications in organic 32 synthesis and petroleum

Jones, William D.

172

Metal inks  

DOE Patents [OSTI]

Self-reducing metal inks and systems and methods for producing and using the same are disclosed. In an exemplary embodiment, a method may comprise selecting metal-organic (MO) precursor, selecting a reducing agent, and dissolving the MO precursor and the reducing agent in an organic solvent to produce a metal ink that remains in a liquid phase at room temperature. Metal inks, including self-reducing and fire-through metal inks, are also disclosed, as are various applications of the metal inks.

Ginley, David S; Curtis, Calvin J; Miedaner, Alex; van Hest, Marinus Franciscus Antonius Maria; Kaydanova, Tatiana

2014-02-04T23:59:59.000Z

173

SMITH, GLEN. Bond Characteristics and Qualifications of Adhesives for Marine Applications and Steel Pipe Repair. (Under the direction of Dr. Sami Rizkalla.)  

E-Print Network [OSTI]

designs using new materials. Adhesives that bond metals, plastics, FRP and other materials have been used for marine application and repair of steel pipeline. #12;BOND CHARACTERISTICS AND QUALIFICATIONS OF ADHESIVES of Science Department of Civil, Construction, and Environmental Engineering Raleigh 2005 APPROVED BY

174

Bond Programs | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: Energy ResourcesJersey:formBlueBombay Beach, California:Bonds allow governments

175

Electrophilic, Ambiphilic, and Nucleophilic C-H bond Activation: Understanding the electronic continuum of C-H bond activation through transition-state and reaction pathway interaction energy decompositions  

SciTech Connect (OSTI)

The potential energy and interaction energy profiles for metal- and metal?ligand-mediated alkane C?H bond activation were explored using B3LYP density functional theory (DFT) and the absolutely localized molecular orbital energy decomposition analysis (ALMO-EDA). The set of complexes explored range from late transition metal group 10 (Pt and Pd) and group 11 (Au) metal centers to group 7?9 (Ir, Rh, Ru, and W) metal centers as well as a group 3 Sc complex. The coordination geometries, electron metal count (d{sup 8}, d{sup 6}, d{sup 4}, and d{sup 0}), and ligands (N-heterocycles, O-donor, phosphine, and Cp*) are also diverse. Quantitative analysis using ALMO-EDA of both directions of charge-transfer stabilization (occupied to unoccupied orbital stabilization) energies between the metal?ligand fragment and the coordinated C?H bond in the transition state for cleavage of the C?H bond allows classification of C?H activation reactions as electrophilic, ambiphilic, or nucleophilic on the basis of the net direction of charge-transfer energy stabilization. This bonding pattern transcends any specific mechanistic or bonding paradigm, such as oxidative addition, ?-bond metathesis, or substitution. Late transition metals such as Au(III), Pt(II), Pd(II), and Rh(III) metal centers with N-heterocycle, halide, or O-donor ligands show electrophilically dominated reaction profiles with forward charge-transfer from the C?H bond to the metal, leading to more stabilization than reverse charge transfer from the metal to the C?H bond. Transition states and reaction profiles for d{sup 6} Ru(II) and Ir(III) metals with Tp and acac ligands were found to have nearly equal forward and reverse charge-transfer energy stabilization. This ambiphilic region also includes the classically labeled electrophilic cationic species Cp*(PMe{sub 3})Ir(Me). Nucleophilic character, where the metal to C?H bond charge-transfer interaction is most stabilizing, was found in metathesis reactions with W(II) and Sc(III) metal center complexes in reactions as well as late transition metal Ir(I) and Rh(I) pincer complexes that undergo C?H bond insertion. Comparison of pincer ligands shows that the PCP ligand imparts more nucleophilic character to an Ir metal center than a deprotonated PNP ligand. The PCP and POCOP ligands do not show a substantial difference in the electronics of C?H activation. It was also found that Rh(I) is substantially more nucleophilic than Ir(I). Lastly, as a qualitative approximation, investigation of transition-state fragment orbital energies showed that relative frontier orbital energy gaps correctly reflect electrophilic, ambiphilic, or nucleophilic charge-transfer stabilization patterns.

Ess, Daniel H; Goddard, William A; Periana, Roy A

2010-01-01T23:59:59.000Z

176

Silicone metalization  

DOE Patents [OSTI]

A system for providing metal features on silicone comprising providing a silicone layer on a matrix and providing a metal layer on the silicone layer. An electronic apparatus can be produced by the system. The electronic apparatus comprises a silicone body and metal features on the silicone body that provide an electronic device.

Maghribi, Mariam N. (Livermore, CA); Krulevitch, Peter (Pleasanton, CA); Hamilton, Julie (Tracy, CA)

2008-12-09T23:59:59.000Z

177

Silicone metalization  

DOE Patents [OSTI]

A system for providing metal features on silicone comprising providing a silicone layer on a matrix and providing a metal layer on the silicone layer. An electronic apparatus can be produced by the system. The electronic apparatus comprises a silicone body and metal features on the silicone body that provide an electronic device.

Maghribi, Mariam N. (Livermore, CA); Krulevitch, Peter (Pleasanton, CA); Hamilton, Julie (Tracy, CA)

2006-12-05T23:59:59.000Z

178

Method of bonding silver to glass and mirrors produced according to this method  

DOE Patents [OSTI]

A method for adhering silver to a glass substrate for producing mirrors includes attaining a silicon enriched substrate surface by reducing the oxygen therein in a vacuum and then vacuum depositing a silver layer onto the silicon enriched surface. The silicon enrichment can be attained by electron beam bombardment, ion beam bombardment, or neutral beam bombardment. It can also be attained by depositing a metal, such as aluminum, on the substrate surface, allowing the metal to oxidize by pulling oxygen from the substrate surface, thereby leaving a silicon enriched surface, and then etching or eroding the metal oxide layer away to expose the silicon enriched surface. Ultraviolet rays can be used to maintain dangling silicon bonds on the enriched surface until covalent bonding with the silver can occur. This disclosure also includes encapsulated mirrors with diffusion layers built therein. One of these mirrors is assembled on a polymer substrate.

Pitts, John R. (Golden, CO); Thomas, Terence M. (Arvada, CO); Czanderna, Alvin W. (Lakewood, CO)

1985-01-01T23:59:59.000Z

179

Method of bonding silver to glass and mirrors produced according to this method  

DOE Patents [OSTI]

A method for adhering silver to a glass substrate for producing mirrors includes attaining a silicon enriched substrate surface by reducing the oxygen therein in a vacuum and then vacuum depositing a silver layer onto the silicon enriched surface. The silicon enrichment can be attained by electron beam bombardment, ion beam bombardment, or neutral beam bombardment. It can also be attained by depositing a metal, such as aluminum, on the substrate surface, allowing the metal to oxidize by pulling oxygen from the substrate surface, thereby leaving a silicon enriched surface, and then etching or eroding the metal oxide layer away to expose the silicon enriched surface. Ultraviolet rays can be used to maintain dangling silicon bonds on the enriched surface until covalent bonding with the silver can occur. This disclosure also includes encapsulated mirrors with diffusion layers built therein. One of these mirrors is assembled on a polymer substrate.

Pitts, J.R.; Thomas, T.M.; Czanderna, A.W.

1984-07-31T23:59:59.000Z

180

Metal alkoxides: templates for organometallic chemistry and catalysis. Final technical report on DE FG 02-86ER13570  

SciTech Connect (OSTI)

The physical properties and chemical reactivities of a series of alkoxide, fluoroalkoxide and thiolate compounds of molybdenum and tungsten having M{triple_bond}M or M{triple_bond}N bonds have been examined which reveal the influence of the pi-donor properties of the ligands: RO > R{sub f}O{approx}RS. Single-site metal alkoxide catalysts for the ring-opening polymerization of lactides have been prepared for the metals magnesium, zinc, and aluminum.

Chisholm, Malcolm H.

2002-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Nuclear reactor multiphysics via bond graph formalism  

E-Print Network [OSTI]

This work proposes a simple and effective approach to modeling nuclear reactor multiphysics problems using bond graphs. Conventional multiphysics simulation paradigms normally use operator splitting, which treats the ...

Sosnovsky, Eugeny

2014-01-01T23:59:59.000Z

182

Public Bonding Options | Department of Energy  

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

While the revenue stream need not be directly related to the financed project, capital lease revenue bonds entail a third party guaranteeing an energy savings revenue stream,...

183

Qualified Energy Conservation Bonds (QECBs) ? State Issues ...  

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

Qualified Energy Conservation Bonds (QECBs) - State Issues & Approaches February 12 th , 2013 DOE's Technical Assistance Program 2 Agenda * TAP Introduction & QECB Resources * QECB...

184

Tax-Exempt Industrial Revenue Bonds (Kansas)  

Broader source: Energy.gov [DOE]

Tax-Exempt Industrial Revenue Bonds are issued by cities and counties for the purchase, construction, improvement or remodeling of a facility for agricultural, commercial, hospital, industrial,...

185

Tax-Exempt Bond Financing (Delaware)  

Broader source: Energy.gov [DOE]

The Delaware Economic Development Authority provides tax-exempt bond financing for financial assistance to new or expanding businesses, governmental units and certain organizations that are exempt...

186

Hydrogen Adsorption Induces Interlayer Carbon Bond Formation...  

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

Hydrogen Adsorption Induces Interlayer Carbon Bond Formation in Supported Few-Layer Graphene Friday, February 28, 2014 Among the allotropes of carbon, diamond has some of the most...

187

Cold bond agglomeration of waste oxides for recycling  

SciTech Connect (OSTI)

Recycling of waste oxides has been an on-going challenge for integrated steel plants. The majority of these waste oxides are collected from the cleaning systems of ironmaking and steelmaking processes, and are usually in the form of fine particulates and slurries. In most cases, these waste materials are contaminated by oils and heavy metals and often require treatment at a considerable expense prior to landfill disposal. This contamination also limits the re-use or recycling potential of these oxides as secondary resources of reliable quality. However, recycling of some selected wastes in blast furnaces or steelmaking vessels is possible, but first requires agglomeration of the fine particulate by such methods as cold bond briquetting. Cold bond briquetting technology provides both mechanical compacting and bonding (with appropriate binders) of the particulates. This method of recycling has the potential to be economically viable and environmentally sustainable. The nature of the present study is cold bond briquetting of iron ore pellet fines with a molasses-cement-H{sub 2}O binder for recycling in a blast furnace. The inclusion of molasses is for its contribution to the green strength of briquettes. During the curing stage, significant gains in strength may be credited to molasses in the presence of cement. The interactions of cement (and its substitutes), water and molasses and their effects on the properties of the agglomerates during and after various curing conditions were investigated. Tensile strengths of briquettes made in the laboratory and subjected to experimental conditions which simulated the top part of a blast furnace shaft were also examined.

D`Alessio, G.; Lu, W.K. [McMaster Univ., Hamilton, Ontario (Canada). Dept. of Materials Science and Engineering

1996-12-31T23:59:59.000Z

188

Cadmium and Zinc Thiolate and Selenolate Metal-Organic Frameworks  

SciTech Connect (OSTI)

Metal-organic frameworks based on metal-sulfur or metal-selenium bonds are relatively rare; herein we describe the synthesis and structural characterization of several examples, including, for example, [Cd(en){sub 3}][Cd(SC{sub 6}H{sub 4}S){sub 2}], which contains the anionic two-dimensional square-grid network [Cd(SC{sub 6}H{sub 4}S){sub 2}]{sub n}{sup 2n-}.

Turner, D.; Stone, K; Stephens, P; Vaid, T

2010-01-01T23:59:59.000Z

189

Molecular Dynamics Simulations of Metal Clusters Supported on Fishbone Carbon Nanofibers  

E-Print Network [OSTI]

-exchange fuel cells use carbon to support catalyst metal clusters of up to 5 Ã?.5,6 In particular, carbon with and without hydrogen termination have been considered. Without hydrogen termination, significant differences of the support material. In general, hydrogen termination attenuates the degree of metal-metal bond strain. 1

Goddard III, William A.

190

Influence of interface compounds on interface bonding characteristics of aluminium and silicon carbide  

SciTech Connect (OSTI)

The interface plays an important role in improving the mechanical properties of metal matrix composites. Hence, it is essential to evaluate interface bonding of Aluminium/Silicon carbide. The interface bonding of Aluminum/Silicon carbide samples were prepared by various processing temperatures at constant holding time. The interface compounds at the interface were evaluated by an energy dispersive spectroscope and diffusion length of compounds was calculated by Arrhenius equation. The interface structure was analyzed by a scanning electron microscope. The interface characteristics were evaluated by tensile test and microhardness test.

Sozhamannan, G.G., E-mail: sozhan30@yahoo.co.in [Department of Mechanical Engineering, College of Engineering, Anna University Chennai, Chennai-600025 (India); Prabu, S. Balasivanandha [Department of Mechanical Engineering, College of Engineering, Anna University Chennai, Chennai-600025 (India)

2009-09-15T23:59:59.000Z

191

Performance and Reliability of Bonded Interfaces for High-Temperature Packaging (Presentation)  

SciTech Connect (OSTI)

The thermal performance and reliability of sintered-silver is being evaluated for power electronics packaging applications. This will be experimentally accomplished by the synthesis of large-area bonded interfaces between metalized substrates that will be subsequently subjected to thermal cycles. A finite element model of crack initiation and propagation in these bonded interfaces will allow for the interpretation of degradation rates by a crack-velocity (V)-stress intensity factor (K) analysis. The experiment is outlined, and the modeling approach is discussed.

Devoto, D.

2014-11-01T23:59:59.000Z

192

Synthesis, Characterization, and Toxicity Studies of Dirhodium and Diiridium Metal-Metal Bonded Compounds  

E-Print Network [OSTI]

the biological properties of dirhodium partial paddlewheel compounds. Previous work in our group has focused on dirhodium carboxylate derivatives with a series of diimine ligands, namely 1,10-phenanthroline (phen), dipyrido[3,2-f:2',3'-h]quinoxaline (dpq...

Lane, Sarah Margaret

2012-10-19T23:59:59.000Z

193

Ceramic-Metal Bonding Research in Japan japanese metals laboratories are becoming materials  

E-Print Network [OSTI]

of aluminum-boron composites. they found that 5051 and 5083 aluminum alloys do not form good F(~. 1.r:e. Mass. In another study at NRIM, iron-aluminum joints have been produced using an iron-oxide insert layer w hen annealed at 1100 K in a vacuum for 30 min (Ref. 2). More recent studies show that this thin

Eagar, Thomas W.

194

NonDestructive Inspection of Adhesive Bonds in Metal-Metal Joints...  

Energy Savers [EERE]

DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland. merit08dasch2.pdf More Documents & Publications Non-Destructive...

195

NonDestructive Inspection of Adhesive Bonds in Metal-Metal Joints |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32DepartmentWells |ofDepartment ofLiven t e g r i

196

Non-Destructive Inspection of Adhesive Bonds in Metal-Metal Joints |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F S iPartnership Program |MillionNextNickDepartment of Energy

197

How Hydrogen Bond Redundancy Affects Protein Flexibility  

E-Print Network [OSTI]

Modeling a Protein as a BodyBarHinge and Associated Graph Main Question: Stability in proteins is the resistance to denaturation, or unfolding. A protein that is highly stable has a high tolerance to bonds breaking before unfolding; an unstable protein has less tolerance. In this study, we focus on the question, how many hydrogen bonds

Naomi Fox; Filip Jagodzinski; Jeanne Hardy; Ileana Streinu

198

Earth-Abundant Transition Metal Chemistry: Electrocatalytic Hydrogen Production and the Synthesis of High-spin Iron(IV)-oxo Complexes  

E-Print Network [OSTI]

simulation (red) in 1:1 acetonitrile/toluene. Spectrometer0.1 M n Bu 4 NPF 6 in acetonitrile. Scan rate: 1000 mV/sec;0.1 M n Bu 4 NPF 6 in acetonitrile. Scan rate: 100 mV/sec;

Bigi, Julian

2012-01-01T23:59:59.000Z

199

Metal oxide films on metal  

DOE Patents [OSTI]

A structure including a thin film of a conductive alkaline earth metal oxide selected from the group consisting of strontium ruthenium trioxide, calcium ruthenium trioxide, barium ruthenium trioxide, lanthanum-strontium cobalt oxide or mixed alkaline earth ruthenium trioxides thereof upon a thin film of a noble metal such as platinum is provided.

Wu, Xin D. (Los Alamos, NM); Tiwari, Prabhat (Los Alamos, NM)

1995-01-01T23:59:59.000Z

200

Microstructural developments in TLP bonds using thin interlayers based on Ni-B coatings  

SciTech Connect (OSTI)

Oxide dispersion strengthened alloy MA 758 was transient liquid phase (TLP) bonded using thin interlayers based on Ni-B electrodeposited coatings and the microstructural developments across the joint region were studied. The bonding surfaces were electrodeposited with a coat thickness of 2-9 {mu}m and microstructural features were characterized by scanning electron microscopy and energy dispersive X-ray spectroscopy. The homogeneity of the joint was assessed performing micro-hardness test. The results showed that the coating thickness as well as the amount of melting point depressants (boron) in the coatings had a significant effect on the microstructural developments within the joint region. TLP bonds made using a 2 {mu}m thick coating interlayer produced a joint with no visible precipitate formation and parent metal dissolution, and the absence of precipitates was attributed to the lower volume concentration of boron in the 2 {mu}m thick coating interlayer.

Saha, R.K. [Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4 (Canada); Khan, T.I., E-mail: tkhan@ucalgary.ca [Department of Mechanical and Manufacturing Engineering, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4 (Canada)

2009-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Structural and Mechanistic Insights into C-P Bond Hydrolysis by Phosphonoacetate Hydrolase  

SciTech Connect (OSTI)

Bacteria have evolved pathways to metabolize phosphonates as a nutrient source for phosphorus. In Sinorhizobium meliloti 1021, 2-aminoethylphosphonate is catabolized to phosphonoacetate, which is converted to acetate and inorganic phosphate by phosphonoacetate hydrolase (PhnA). Here we present detailed biochemical and structural characterization of PhnA that provides insights into the mechanism of C-P bond cleavage. The 1.35 {angstrom} resolution crystal structure reveals a catalytic core similar to those of alkaline phosphatases and nucleotide pyrophosphatases but with notable differences, such as a longer metal-metal distance. Detailed structure-guided analysis of active site residues and four additional cocrystal structures with phosphonoacetate substrate, acetate, phosphonoformate inhibitor, and a covalently bound transition state mimic provide insight into active site features that may facilitate cleavage of the C-P bond. These studies expand upon the array of reactions that can be catalyzed by enzymes of the alkaline phosphatase superfamily.

Agarwal, Vinayak; Borisova, Svetlana A.; Metcalf, William W.; van der Donk, Wilfred A.; Nair, Satish K. (UIUC)

2011-12-22T23:59:59.000Z

202

Arylpalladium Phosphonate Complexes as Reactive Intermediates in Phosphorus-Carbon Bond Forming Reactions  

SciTech Connect (OSTI)

Phosphorus-carbon bond formation from discrete transition metal complexes have been investigated through a combination of synthetic, spectroscopic, crystallographic, and computational methods. Reactive intermediates of the type (diphosphine)Pd(aryl)(P(O)(OEt)(2)) have been prepared, characterized, and studied as possible intermediates in metal-mediated coupling reactions. Several of the reactive intermediates were characterized crystallographicaliy, and a discussion of the solid state structures is presented. In contrast to other carbon-heteroelement bond forming reactions, palladium complexes containing electron-donating substituents on the aromatic fragment exhibited faster rates of reductive elimination. Large bite angle diphosphine ligands induced rapid rates of elimination, while bipyridine and small bite angle diphosphine ligands resulted in much slower rates of elimination. An investigation of the effect of typical impurities on the elimination reaction was carried out. While excess diphosphine, pyridine, and acetonitrile had little effect on the observed rate, the addition of water slowed the phosphorus-carbon bond forming reaction. Coordination of water to the complex was observed spectroscopically and crystallographically. Computational studies were utilized to probe the reaction pathways for P-C bond formation via Pd catalysis.

Kohler, Mark C. [Bucknell University; Grimes, Thomas V. [University of North Texas; Wang, Xiaoping [ORNL; Cundari, Thomas R. [University of North Texas; Stockland, Robert A. Jr. [Bucknell University

2009-01-01T23:59:59.000Z

203

A Preorganized Hydrogen Bond Network and Its Effect on Anion...  

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

Preorganized Hydrogen Bond Network and Its Effect on Anion Stability. A Preorganized Hydrogen Bond Network and Its Effect on Anion Stability. Abstract: Rigid tricyclic locked in...

204

Local Option- Industrial Facilities and Development Bonds (Utah)  

Broader source: Energy.gov [DOE]

Under the Utah Industrial Facilities and Development Act, counties, municipalities, and state universities in Utah may issue Industrial Revenue Bonds (IRBs) or Industrial Development Bonds (IDBs)...

205

Atoms in Valence Bond. Method, implementation and application.  

E-Print Network [OSTI]

??The Atoms in Valence Bond (AiVB) approach is presented. The main goal was to develop a new and innovative approach, within the existing Valence Bond… (more)

Zielinski, M.L.

2012-01-01T23:59:59.000Z

206

Mechanistic Examination of C?–C? Bond Cleavages...  

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

Mechanistic Examination of C?–C? Bond Cleavages of Tryptophan Residues during Dissociations of Molecular Mechanistic Examination of C?–C? Bond...

207

Hydrogen-bond acidic functionalized carbon nanotubes (CNTs) with...  

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

Hydrogen-bond acidic functionalized carbon nanotubes (CNTs) with covalently-bound hexafluoroisopropanol groups. Hydrogen-bond acidic functionalized carbon nanotubes (CNTs) with...

208

Atomistic modeling of amorphous silicon carbide using a bond...  

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

modeling of amorphous silicon carbide using a bond-order potential. Atomistic modeling of amorphous silicon carbide using a bond-order potential. Abstract: Molecular dynamics...

209

Using Qualified Energy Conservation Bonds for Public Building...  

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

Using Qualified Energy Conservation Bonds for Public Building Upgrades: Reducing Energy Bills in the City of Philadelphia Using Qualified Energy Conservation Bonds for Public...

210

Taking Advantage of Qualified Energy Conservation Bonds (QECBs...  

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

Advantage of Qualified Energy Conservation Bonds (QECBs) Taking Advantage of Qualified Energy Conservation Bonds (QECBs) Blue version of the EERE PowerPoint template, for use with...

211

IRS Announces New Tribal Economic Development Bond Allocation...  

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

IRS Announces New Tribal Economic Development Bond Allocation Guidance IRS Announces New Tribal Economic Development Bond Allocation Guidance July 18, 2012 - 3:46pm Addthis To...

212

Municipal Bond - Power Purchase Agreement Model Continues to...  

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

Municipal Bond - Power Purchase Agreement Model Continues to Provide Low-Cost Solar Energy Municipal Bond - Power Purchase Agreement Model Continues to Provide Low-Cost Solar...

213

Three Hydrogen Bond Donor Catalysts: Oxyanion Hole Mimics and...  

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

Hydrogen Bond Donor Catalysts: Oxyanion Hole Mimics and Transition State Analogues. Three Hydrogen Bond Donor Catalysts: Oxyanion Hole Mimics and Transition State Analogues....

214

Method of making bonded or sintered permanent magnets  

DOE Patents [OSTI]

An isotropic permanent magnet is made by mixing a thermally responsive, low viscosity binder and atomized rare earth-transition metal (e.g., iron) alloy powder having a carbon-bearing (e.g., graphite) layer thereon that facilitates wetting and bonding of the powder particles by the binder. Prior to mixing with the binder, the atomized alloy powder may be sized or classified to provide a particular particle size fraction having a grain size within a given relatively narrow range. A selected particle size fraction is mixed with the binder and the mixture is molded to a desired complex magnet shape. A molded isotropic permanent magnet is thereby formed. A sintered isotropic permanent magnet can be formed by removing the binder from the molded mixture and thereafter sintering to full density.

McCallum, R.W.; Dennis, K.W.; Lograsso, B.K.; Anderson, I.E.

1993-08-31T23:59:59.000Z

215

Metals 2000  

SciTech Connect (OSTI)

This strategic planning exercise identified and characterized new and emerging advanced metallic technologies in the context of the drastic changes in global politics and decreasing fiscal resources. In consideration of a hierarchy of technology thrusts stated by various Department of Defense (DOD) spokesmen, and the need to find new and creative ways to acquire and organize programs within an evolving Wright Laboratory, five major candidate programs identified are: C-17 Flap, Transport Fuselage, Mach 5 Aircraft, 4.Fighter Structures, and 5. Missile Structures. These results were formed by extensive discussion with selected major contractors and other experts, and a survey of advanced metallic structure materials. Candidate structural applications with detailed metal structure descriptions bracket a wide variety of uses which warrant consideration for the suggested programs. An analysis on implementing smart skins and structures concepts is given from a metal structures perspective.

Allison, S.W.; Rogers, L.C.; Slaughter, G. [Oak Ridge National Lab., TN (United States); Boensch, F.D. [6025 Oak Hill Lane, Centerville, OH (United States); Claus, R.O.; de Vries, M. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)

1993-05-01T23:59:59.000Z

216

The Ohio Enterprise Bond Fund (Ohio)  

Broader source: Energy.gov [DOE]

The Ohio Enterprise Bond Fund (OEBF) was created in 1988 to promote economic development, create and retain quality jobs and assist governmental operations. The program enables non-profit and for...

217

Sandia National Laboratories: Diffusion Bonding Characterization  

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

bond surface is poor or only the region near this corner Diffusion 7-8-9 Diffusion Welding and Brazing, Welding Handbook, 7th ed., American Welding Society, 1980, p 311-335...

218

Industrial Revenue Bond Program (District of Columbia)  

Broader source: Energy.gov [DOE]

The District provides below market bond financing to lower the costs of borrowing for qualified capital construction and renovation projects. The program is available to non-profits, institutions,...

219

Dendritic metal nanostructures  

DOE Patents [OSTI]

Dendritic metal nanostructures made using a surfactant structure template, a metal salt, and electron donor species.

Shelnutt, John A. (Tijeras, NM); Song, Yujiang (Albuquerque, NM); Pereira, Eulalia F. (Vila Nova de Gaia, PT); Medforth, Craig J. (Winters, CA)

2010-08-31T23:59:59.000Z

220

Upgrading of petroleum oil feedstocks using alkali metals and hydrocarbons  

DOE Patents [OSTI]

A method of upgrading an oil feedstock by removing heteroatoms and/or one or more heavy metals from the oil feedstock composition. This method reacts the oil feedstock with an alkali metal and an upgradant hydrocarbon. The alkali metal reacts with a portion of the heteroatoms and/or one or more heavy metals to form an inorganic phase separable from the organic oil feedstock material. The upgradant hydrocarbon bonds to the oil feedstock material and increases the number of carbon atoms in the product. This increase in the number of carbon atoms of the product increases the energy value of the resulting oil feedstock.

Gordon, John Howard

2014-09-09T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation  

DOE Patents [OSTI]

The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately .pi.-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancilliary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H.sub.2 from mixed gas streams such as the product gas from coal gasification processes.

Lilga, Michael A. (Richland, WA); Hallen, Richard T. (Richland, WA)

1991-01-01T23:59:59.000Z

222

Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation  

DOE Patents [OSTI]

The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately .pi.-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancilliary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H.sub.2 from mixed gas streams such as the produce gas from coal gasification processes.

Lilga, Michael A. (Richland, WA); Hallen, Richard T. (Richland, WA)

1990-01-01T23:59:59.000Z

223

Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation  

DOE Patents [OSTI]

The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately [pi]-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancillary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H[sub 2] from mixed gas streams such as the producer gas from coal gasification processes. 3 figs.

Lilga, M.A.; Hallen, R.T.

1990-08-28T23:59:59.000Z

224

Bridged transition-metal complexes and uses thereof for hydrogen separation, storage and hydrogenation  

DOE Patents [OSTI]

The present invention constitutes a class of organometallic complexes which reversibly react with hydrogen to form dihydrides and processes by which these compounds can be utilized. The class includes bimetallic complexes in which two cyclopentadienyl rings are bridged together and also separately [pi]-bonded to two transition metal atoms. The transition metals are believed to bond with the hydrogen in forming the dihydride. Transition metals such as Fe, Mn or Co may be employed in the complexes although Cr constitutes the preferred metal. A multiple number of ancillary ligands such as CO are bonded to the metal atoms in the complexes. Alkyl groups and the like may be substituted on the cyclopentadienyl rings. These organometallic compounds may be used in absorption/desorption systems and in facilitated transport membrane systems for storing and separating out H[sub 2] from mixed gas streams such as the product gas from coal gasification processes. 3 figures.

Lilga, M.A.; Hallen, R.T.

1991-10-15T23:59:59.000Z

225

July 18, 2012 Using Qualified Energy Conservation Bonds for Public  

E-Print Network [OSTI]

July 18, 2012 Using Qualified Energy Conservation Bonds for Public Building Upgrades: Reducing Energy Bills in the City of Philadelphia Qualified Energy Conservation Bonds (QECBs) are federally Energy Conservation Bond (QECB) is a bond that enables qualified state, tribal and local government

226

The Ties That Bond: Re-Examining the Relationship between Facebook Use and Bonding Social Capital  

E-Print Network [OSTI]

The Ties That Bond: Re-Examining the Relationship between Facebook Use and Bonding Social Capital established a positive relationship between measures of Facebook use and perceptions of social capital. Like other social network sites, Facebook is especially well-positioned to enhance users' bridging social

Michigan, University of

227

Shirzadi et al. Surface and Interface Analysis 2001; 31:609-618 Interface evolution and bond strength when diffusion bonding  

E-Print Network [OSTI]

strength when diffusion bonding materials with stable oxide films A.A. Shirzadi* , H. Assadi and E morphologies and strengths of aluminium diffusion bonds are reviewed. Previous approaches, proposed to overcome for both solid-state diffusion bonding and conventional transient liquid phase (TLP) diffusion bonding. Non

Cambridge, University of

228

Hydrogen Bond Networks: Structure and Evolution after Hydrogen Bond Breaking John B. Asbury, Tobias Steinel, and M. D. Fayer*  

E-Print Network [OSTI]

Hydrogen Bond Networks: Structure and Evolution after Hydrogen Bond Breaking John B. Asbury, TobiasVed: September 1, 2003; In Final Form: December 18, 2003 The nature of hydrogen bonding networks following hydrogen bond breaking is investigated using vibrational echo correlation spectroscopy of the hydroxyl

Fayer, Michael D.

229

Composite metal membrane  

DOE Patents [OSTI]

A composite metal membrane including a first metal layer of Group IVB met or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof is provided together with a process for the recovery of hydrogen from a gaseous mixture including contacting a hydrogen-containing gaseous mixture with a first side of a nonporous composite metal membrane including a first metal of Group IVB metals or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof, and, separating hydrogen from a second side of the nonporous composite metal membrane.

Peachey, Nathaniel M. (Espanola, NM); Dye, Robert C. (Los Alamos, NM); Snow, Ronny C. (Los Alamos, NM); Birdsell, Stephan A. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

230

Composite metal membrane  

DOE Patents [OSTI]

A composite metal membrane including a first metal layer of Group IVB met or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof is provided together with a process for the recovery of hydrogen from a gaseous mixture including contacting a hydrogen-containing gaseous mixture with a first side of a nonporous composite metal membrane including a first metal of Group IVB metals or Group VB metals, the first metal layer sandwiched between two layers of an oriented metal of palladium, platinum or alloys thereof, and, separating hydrogen from a second side of the nonporous composite metal membrane.

Peachey, N.M.; Dye, R.C.; Snow, R.C.; Birdsell, S.A.

1998-04-14T23:59:59.000Z

231

Steel-SiC Metal Matrix Composite Development  

SciTech Connect (OSTI)

The goal of this project is to develop a method for fabricating SiC-reinforced high-strength steel. We are developing a metal-matrix composite (MMC) in which SiC fibers are be embedded within a metal matrix of steel, with adequate interfacial bonding to deliver the full benefit of the tensile strength of the SiC fibers in the composite.

Smith, Don D.

2005-07-17T23:59:59.000Z

232

Epoxy bond and stop etch fabrication method  

DOE Patents [OSTI]

A class of epoxy bond and stop etch (EBASE) microelectronic fabrication techniques is disclosed. The essence of such techniques is to grow circuit components on top of a stop etch layer grown on a first substrate. The first substrate and a host substrate are then bonded together so that the circuit components are attached to the host substrate by the bonding agent. The first substrate is then removed, e.g., by a chemical or physical etching process to which the stop etch layer is resistant. EBASE fabrication methods allow access to regions of a device structure which are usually blocked by the presence of a substrate, and are of particular utility in the fabrication of ultrafast electronic and optoelectronic devices and circuits.

Simmons, Jerry A. (Sandia Park, NM); Weckwerth, Mark V. (Pleasanton, CA); Baca, Wes E. (Albuquerque, NM)

2000-01-01T23:59:59.000Z

233

Bond Strength Measurements from an Australian Standard Bond Wrench in Comparison to the Unbalanced ASTM C 1072 Bond Wrench to the Balanced and Unbalanced Wrenches  

E-Print Network [OSTI]

Bond wrenches. The Australian wrench values were significantly higher than the American bond wrenches for similar types of samples. Hence it was recommended that the tests be carried out by replacing the cement with Portland cement. This experimental...

Suresh, Sri Vishnu Chaitanya Guptha

2014-08-14T23:59:59.000Z

234

Theoretical study of the adsorption of 3d- and 4d-metals on a WC(0001) surface  

SciTech Connect (OSTI)

The interaction of 3d- and 4d-metals with a WC(0001) surface has been studied theoretically by density-functional theory methods depending on surface termination and adsorbate position. The most stable sites of metal adsorption on the surface have been determined. The binding energy of d-metals with the surface is shown to be higher in the case of carbon terminated surface. This is explained by the predominant ionic-covalent contribution to the chemical bond at the interface, with the bond ionicity being determined by charge transfer from the metals to the electronegative carbon. Analysis of the electronic and structural characteristics has revealed the factors affecting the bonding energetics at the metal-carbide interface depending on the metal d-shell filling with electrons.

Bakulin, A. V.; Kulkova, S. E., E-mail: kulkova@ispms.tsc.ru [Russian Academy of Sciences, Institute of Strength Physics and Materials Science, Siberian Branch (Russian Federation)

2013-08-15T23:59:59.000Z

235

Adhesive bonding using variable frequency microwave energy  

DOE Patents [OSTI]

Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy.

Lauf, Robert J. (Oak Ridge, TN); McMillan, April D. (Knoxville, TN); Paulauskas, Felix L. (Oak Ridge, TN); Fathi, Zakaryae (Cary, NC); Wei, Jianghua (Raleigh, NC)

1998-01-01T23:59:59.000Z

236

Adhesive bonding using variable frequency microwave energy  

DOE Patents [OSTI]

Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy. 26 figs.

Lauf, R.J.; McMillan, A.D.; Paulauskas, F.L.; Fathi, Z.; Wei, J.

1998-09-08T23:59:59.000Z

237

Adhesive bonding using variable frequency microwave energy  

DOE Patents [OSTI]

Methods of facilitating the adhesive bonding of various components with variable frequency microwave energy are disclosed. The time required to cure a polymeric adhesive is decreased by placing components to be bonded via the adhesive in a microwave heating apparatus having a multimode cavity and irradiated with microwaves of varying frequencies. Methods of uniformly heating various articles having conductive fibers disposed therein are provided. Microwave energy may be selectively oriented to enter an edge portion of an article having conductive fibers therein. An edge portion of an article having conductive fibers therein may be selectively shielded from microwave energy. 26 figs.

Lauf, R.J.; McMillan, A.D.; Paulauskas, F.L.; Fathi, Z.; Wei, J.

1998-08-25T23:59:59.000Z

238

Phosphate-bonded calcium aluminate cements  

DOE Patents [OSTI]

A method is described for making a rapid-setting phosphate-bonded cementitious material. A powdered aluminous cement is mixed with an aqueous solution of ammonium phosphate. The mixture is allowed to set to form an amorphous cementitious material which also may be hydrothermally treated at a temperature of from about 120 C to about 300 C to form a crystal-containing phosphate-bonded material. Also described are the cementitious products of this method and the cement composition which includes aluminous cement and ammonium polyphosphate. 10 figures.

Sugama, T.

1993-09-21T23:59:59.000Z

239

Method for producing chemically bonded phosphate ceramics and for stabilizing contaminants encapsulated therein utilizing reducing agents  

SciTech Connect (OSTI)

Known phosphate ceramic formulations are improved and the ability to produce iron-based phosphate ceramic systems is enabled by the addition of an oxidizing or reducing step during the acid-base reactions that form the phosphate ceramic products. The additives allow control of the rate of the acid-base reactions and concomitant heat generation. In an alternate embodiment, waste containing metal anions are stabilized in phosphate ceramic products by the addition of a reducing agent to the phosphate ceramic mixture. The reduced metal ions are more stable and/or reactive with the phosphate ions, resulting in the formation of insoluble metal species within the phosphate ceramic matrix, such that the resulting chemically bonded phosphate ceramic product has greater leach resistance.

Singh, Dileep (Naperville, IL); Wagh, Arun S. (Orland Park, IL); Jeong, Seung-Young (Westmont, IL)

2000-01-01T23:59:59.000Z

240

A study of the formation of cluster ions from metal acetates using plasma desorption mass spectrometry  

E-Print Network [OSTI]

mainly metal oxides. On the other hand, positive clusters ions from the group IIB of the periodic table were mainly mirror images of the negative spectra. These differences suggest that the bonding characteristics of the metal ion play an important role...

Mendez Silvagnoli, Winston Reinaldo

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Nitride-bonded silicon carbide composite filter  

SciTech Connect (OSTI)

The objective of this program is to develop and demonstrate an advanced hot gas filter, using ceramic component technology, with enhanced durability to provide increased resistance to thermal fatigue and crack propagation. The material is silicon carbide fiber reinforced nitride bonded silicon carbide.

Thomson, B.N.; DiPietro, S.G.

1995-12-01T23:59:59.000Z

242

Fluorinated diamond bonded in fluorocarbon resin  

DOE Patents [OSTI]

By fluorinating diamond grit, the grit may be readily bonded into a fluorocarbon resin matrix. The matrix is formed by simple hot pressing techniques. Diamond grinding wheels may advantageously be manufactured using such a matrix. Teflon fluorocarbon resins are particularly well suited for using in forming the matrix.

Taylor, Gene W. (Los Alamos, NM)

1982-01-01T23:59:59.000Z

243

Metal Hydrides  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department of EnergyDevelopmentTechnologies |Charles Page -toMetabolic PathwaysMetal

244

Dynamic force spectroscopy on multiple bonds: experiments and model  

E-Print Network [OSTI]

We probe the dynamic strength of multiple biotin-streptavidin adhesion bonds under linear loading using the biomembrane force probe setup for dynamic force spectroscopy. Measured rupture force histograms are compared to results from a master equation model for the stochastic dynamics of bond rupture under load. This allows us to extract the distribution of the number of initially closed bonds. We also extract the molecular parameters of the adhesion bonds, in good agreement with earlier results from single bond experiments. Our analysis shows that the peaks in the measured histograms are not simple multiples of the single bond values, but follow from a superposition procedure which generates different peak positions.

T. Erdmann; S. Pierrat; P. Nassoy; U. S. Schwarz

2007-12-18T23:59:59.000Z

245

Bayesian field theoretic reconstruction of bond potential and bond mobility in single molecule force spectroscopy  

E-Print Network [OSTI]

Quantifying the forces between and within macromolecules is a necessary first step in understanding the mechanics of molecular structure, protein folding, and enzyme function and performance. In such macromolecular settings, dynamic single-molecule force spectroscopy (DFS) has been used to distort bonds. The resulting responses, in the form of rupture forces, work applied, and trajectories of displacements, have been used to reconstruct bond potentials. Such approaches often rely on simple parameterizations of one-dimensional bond potentials, assumptions on equilibrium starting states, and/or large amounts of trajectory data. Parametric approaches typically fail at inferring complex-shaped bond potentials with multiple minima, while piecewise estimation may not guarantee smooth results with the appropriate behavior at large distances. Existing techniques, particularly those based on work theorems, also do not address spatial variations in the diffusivity that may arise from spatially inhomogeneous coupling to...

Chang, Joshua C; Chou, Tom

2015-01-01T23:59:59.000Z

246

Various Carbon to Carbon Bond Lengths Inter-related via the Golden Ratio, and their Linear Dependence on Bond Energies  

E-Print Network [OSTI]

This work presents the relations between the carbon to carbon bond lengths in the single, double and triple bonds and in graphite, butadiene and benzene. The Golden ratio, which was shown to divide the Bohr radius into two parts pertaining to the charged particles, the electron and proton, and to divide inter-atomic distances into their cationic and anionic radii, also plays a role in the carbon-carbon bonds and in the ionic/polar character of those in graphite, butadiene and benzene. Further, the bond energies of the various CC bonds are shown to vary linearly with the bond lengths.

Raji Heyrovska

2008-09-11T23:59:59.000Z

247

Mechanochemical processing for metals and metal alloys  

DOE Patents [OSTI]

A set of processes for preparing metal powders, including metal alloy powders, by ambient temperature reduction of a reducible metal compound by a reactive metal or metal hydride through mechanochemical processing. The reduction process includes milling reactants to induce and complete the reduction reaction. The preferred reducing agents include magnesium and calcium hydride powders. A process of pre-milling magnesium as a reducing agent to increase the activity of the magnesium has been established as one part of the invention.

Froes, Francis H. (Moscow, ID); Eranezhuth, Baburaj G. (Moscow, ID); Prisbrey, Keith (Moscow, ID)

2001-01-01T23:59:59.000Z

248

Experimental bond critical point and local energy density properties...  

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

Mn-O, Fe-O and Co-O bonded interactions for Abstract: Bond critical point, bcp, and local energy density properties for the electron density, ED, distributions, calculated with...

249

Single-Issue Industrial Revenue Bond Program (Missouri)  

Broader source: Energy.gov [DOE]

The Missouri Development Finance Board administers a Single-Issue Tax-Exempt Industrial Revenue Bond Program as well as a Taxable Industrial Revenue Bond Program. The Tax-Exempt Program finances (i...

250

Imaging Intrinsic Diffusion of Bridge-Bonded Oxygen Vacancies...  

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

Intrinsic Diffusion of Bridge-Bonded Oxygen Vacancies on TiO2(110). Imaging Intrinsic Diffusion of Bridge-Bonded Oxygen Vacancies on TiO2(110). Abstract: Since oxygen atom...

251

Process for the fabrication of aluminum metallized pyrolytic graphite sputtering targets  

DOE Patents [OSTI]

An improved method for fabricating pyrolytic graphite sputtering targets with superior heat transfer ability, longer life, and maximum energy transmission. Anisotropic pyrolytic graphite is contoured and/or segmented to match the erosion profile of the sputter target and then oriented such that the graphite's high thermal conductivity planes are in maximum contact with a thermally conductive metal backing. The graphite contact surface is metallized, using high rate physical vapor deposition (HRPVD), with an aluminum coating and the thermally conductive metal backing is joined to the metallized graphite target by one of four low-temperature bonding methods; liquid-metal casting, powder metallurgy compaction, eutectic brazing, and laser welding.

Makowiecki, Daniel M. (Livermore, CA); Ramsey, Philip B. (Livermore, CA); Juntz, Robert S. (Hayward, CA)

1995-01-01T23:59:59.000Z

252

Hydrogen Bonding DOI: 10.1002/anie.200501349  

E-Print Network [OSTI]

systems[5­13] and crystal engineering.[14­18] Most C�H···O hydrogen bonds have been observed for the soHydrogen Bonding DOI: 10.1002/anie.200501349 Observation of Weak C�H···O Hydrogen Bonding to Unactivated Alkanes** Xue-Bin Wang, Hin-Koon Woo, Boggavarapu Kiran, and Lai-Sheng Wang* The hydrogen bond

Simons, Jack

253

Article coated with flash bonded superhydrophobic particles  

DOE Patents [OSTI]

A method of making article having a superhydrophobic surface includes: providing a solid body defining at least one surface; applying to the surface a plurality of diatomaceous earth particles and/or particles characterized by particle sizes ranging from at least 100 nm to about 10 .mu.m, the particles being further characterized by a plurality of nanopores, wherein at least some of the nanopores provide flow through porosity, the particles being further characterized by a plurality of spaced apart nanostructured features that include a contiguous, protrusive material; flash bonding the particles to the surface so that the particles are adherently bonded to the surface; and applying a hydrophobic coating layer to the surface and the particles so that the hydrophobic coating layer conforms to the nanostructured features.

Simpson, John T (Clinton, TN) [Clinton, TN; Blue, Craig A (Knoxville, TN) [Knoxville, TN; Kiggans, Jr., James O [Oak Ridge, TN

2010-07-13T23:59:59.000Z

254

Oil prices and government bond risk premiums Herv Alexandre*  

E-Print Network [OSTI]

Oil prices and government bond risk premiums By Hervé Alexandre*º Antonin de Benoist * Abstract : This article analyses the impact of oil price on bond risk premiums issued by emerging economies. No empirical study has yet focussed on the effects of the oil price on government bond risk premiums. We develop

Boyer, Edmond

255

Diffusion Bonding Aluminium Alloys and Composites: New Approaches and Modelling  

E-Print Network [OSTI]

Diffusion Bonding Aluminium Alloys and Composites: New Approaches and Modelling Amir A. Shirzadi of the research, two new methods for TLP diffusion bonding of aluminium-based composites (aluminium alloys diffusion bonding and hot isostatic pressing without encapsulation. It allows the fabrication of intricate

Cambridge, University of

256

Energetics of hydrogen bonds in peptides Sheh-Yi Sheu*  

E-Print Network [OSTI]

for water. We find that the activation energy for the rupture of the hydrogen bond in a -sheet under calculation can be useful for the prediction of hydrogen bond strengths in various environments of interest extensively to calculate free energy changes caused by hydrogen bond rupture. Here the water environment

Sheu, Sheh-Yi

257

Hydrogen Bonding Penalty upon Ligand Binding Hongtao Zhao, Danzhi Huang*  

E-Print Network [OSTI]

Hydrogen Bonding Penalty upon Ligand Binding Hongtao Zhao, Danzhi Huang* Department of Biochemistry, University of Zurich, Zurich, Switzerland Abstract Ligand binding involves breakage of hydrogen bonds with water molecules and formation of new hydrogen bonds between protein and ligand. In this work, the change

Caflisch, Amedeo

258

Analysis of C H...O hydrogen bonds  

E-Print Network [OSTI]

1 Analysis of C H...O hydrogen bonds in high resolution protein crystal structures from the PDB 1.4 Identification of C-H...O hydrogen bonds............................................. 1.4.1 The definition of a C-H...O hydrogen bond.................................... 1.4.2 Fixing the hydrogen and measuring the parameters

Babu, M. Madan

259

Vacuum fusion bonding of glass plates  

DOE Patents [OSTI]

An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

2001-01-01T23:59:59.000Z

260

Vacuum fusion bonding of glass plates  

DOE Patents [OSTI]

An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Anesthesia cutoff phenomenon: Interfacial hydrogen bonding  

SciTech Connect (OSTI)

Anesthesia cutoff refers to the phenomenon of loss of anesthetic potency in a homologous series of alkanes and their derivatives when their sizes become too large. In this study, hydrogen bonding of 1-alkanol series (ethanol to eicosanol) to dipalmitoyl-L-alpha-phosphatidylcholine (DPPC) was studied by Fourier transform infrared spectroscopy (FTIR) in DPPC-D2O-in-CCl4 reversed micelles. The alkanols formed hydrogen bonds with the phosphate moiety of DPPC and released the DPPC-bound deuterated water, evidenced by increases in the bound O-H stretching signal of the alkanol-DPPC complex and also in the free O-D stretching band of unbound D2O. These effects increased according to the elongation of the carbon chain of 1-alkanols from ethanol (C2) to 1-decanol (C10), but suddenly almost disappeared at 1-tetradecanol (C14). Anesthetic potencies of these alkanols, estimated by the activity of brine shrimps, were linearly related to hydrogen bond-breaking activities below C10 and agreed with the FTIR data in the cutoff at C10.

Chiou, J.S.; Ma, S.M.; Kamaya, H.; Ueda, I. (Univ. of Utah School of Medicine, Salt Lake City (USA))

1990-05-04T23:59:59.000Z

262

Microchannel cooling of face down bonded chips  

DOE Patents [OSTI]

Microchannel cooling is applied to flip-chip bonded integrated circuits, in a manner which maintains the advantages of flip-chip bonds, while overcoming the difficulties encountered in cooling the chips. The technique is suited to either multichip integrated circuit boards in a plane, or to stacks of circuit boards in a three dimensional interconnect structure. Integrated circuit chips are mounted on a circuit board using flip-chip or control collapse bonds. A microchannel structure is essentially permanently coupled with the back of the chip. A coolant delivery manifold delivers coolant to the microchannel structure, and a seal consisting of a compressible elastomer is provided between the coolant delivery manifold and the microchannel structure. The integrated circuit chip and microchannel structure are connected together to form a replaceable integrated circuit module which can be easily decoupled from the coolant delivery manifold and the circuit board. The coolant supply manifolds may be disposed between the circuit boards in a stack and coupled to supplies of coolant through a side of the stack.

Bernhardt, Anthony F. (Berkeley, CA)

1993-01-01T23:59:59.000Z

263

Microchannel cooling of face down bonded chips  

DOE Patents [OSTI]

Microchannel cooling is applied to flip-chip bonded integrated circuits, in a manner which maintains the advantages of flip-chip bonds, while overcoming the difficulties encountered in cooling the chips. The technique is suited to either multi chip integrated circuit boards in a plane, or to stacks of circuit boards in a three dimensional interconnect structure. Integrated circuit chips are mounted on a circuit board using flip-chip or control collapse bonds. A microchannel structure is essentially permanently coupled with the back of the chip. A coolant delivery manifold delivers coolant to the microchannel structure, and a seal consisting of a compressible elastomer is provided between the coolant delivery manifold and the microchannel structure. The integrated circuit chip and microchannel structure are connected together to form a replaceable integrated circuit module which can be easily decoupled from the coolant delivery manifold and the circuit board. The coolant supply manifolds may be disposed between the circuit boards in a stack and coupled to supplies of coolant through a side of the stack.

Bernhardt, A.F.

1993-06-08T23:59:59.000Z

264

Evaluation of the Role of Water in the H2 Bond Formation by Ni(II)-based Electrocatalysts  

SciTech Connect (OSTI)

We investigate the role of water in the H-H bond formation by a family of nickel molecular catalysts that exhibit high rates for H2 production in acetonitrile solvent. A key feature leading to the high reactivity is the Lewis acidity of the Ni(II) center and pendant amines in the diphosphine ligand that function as Lewis bases, facilitating H-H bond formation or cleavage. Significant increases in the rate of H2 production have been reported in the presence of added water. Our calculations show that molecular water can displace an acetonitrile solvent molecule in the first solvation shell of the metal. One or two water molecules can also participate in shuttling a proton that can combine with a metal hydride to form the H-H bond. However the participation of the water molecules does not lower the barrier to H-H bond formation. Thus these calculations suggest that the rate increase due to water in these electrocatalysts is not associated with the elementary step of H-H bond formation or cleavage, but rather with the proton delivery steps. We attribute the higher barrier in the H-H bond formation in the presence of water to a decrease in direct interaction between the protic and hydridic hydrogen atoms forced by the water molecules. This research was supported as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences. Computational resources were provided at W. R. Wiley Environmental Molecular Science Laboratory - Pacific Northwest National Laboratory, the National Energy Research Scientific Computing Center (NERSC) at Lawrence Berkeley National Laboratory, and the Jaguar supercomputer at Oak Ridge National Laboratory.

Ho, Ming-Hsun; Raugei, Simone; Rousseau, Roger J.; Dupuis, Michel; Bullock, R. Morris

2013-07-17T23:59:59.000Z

265

Extracting metals directly from metal oxides  

DOE Patents [OSTI]

A method of extracting metals directly from metal oxides by exposing the oxide to a supercritical fluid solvent containing a chelating agent is described. Preferably, the metal is an actinide or a lanthanide. More preferably, the metal is uranium, thorium or plutonium. The chelating agent forms chelates that are soluble in the supercritical fluid, thereby allowing direct removal of the metal from the metal oxide. In preferred embodiments, the extraction solvent is supercritical carbon dioxide and the chelating agent is selected from the group consisting of {beta}-diketones, halogenated {beta}-diketones, phosphinic acids, halogenated phosphinic acids, carboxylic acids, halogenated carboxylic acids, and mixtures thereof. In especially preferred embodiments, at least one of the chelating agents is fluorinated. The method provides an environmentally benign process for removing metals from metal oxides without using acids or biologically harmful solvents. The chelate and supercritical fluid can be regenerated, and the metal recovered, to provide an economic, efficient process. 4 figs.

Wai, C.M.; Smart, N.G.; Phelps, C.

1997-02-25T23:59:59.000Z

266

Extracting metals directly from metal oxides  

DOE Patents [OSTI]

A method of extracting metals directly from metal oxides by exposing the oxide to a supercritical fluid solvent containing a chelating agent is described. Preferably, the metal is an actinide or a lanthanide. More preferably, the metal is uranium, thorium or plutonium. The chelating agent forms chelates that are soluble in the supercritical fluid, thereby allowing direct removal of the metal from the metal oxide. In preferred embodiments, the extraction solvent is supercritical carbon dioxide and the chelating agent is selected from the group consisting of .beta.-diketones, halogenated .beta.-diketones, phosphinic acids, halogenated phosphinic acids, carboxylic acids, halogenated carboxylic acids, and mixtures thereof. In especially preferred embodiments, at least one of the chelating agents is fluorinated. The method provides an environmentally benign process for removing metals from metal oxides without using acids or biologically harmful solvents. The chelate and supercritical fluid can be regenerated, and the metal recovered, to provide an economic, efficient process.

Wai, Chien M. (Moscow, ID); Smart, Neil G. (Moscow, ID); Phelps, Cindy (Moscow, ID)

1997-01-01T23:59:59.000Z

267

Method of waste stabilization with dewatered chemically bonded phosphate ceramics  

DOE Patents [OSTI]

A method of stabilizing a waste in a chemically bonded phosphate ceramic (CBPC). The method consists of preparing a slurry including the waste, water, an oxide binder, and a phosphate binder. The slurry is then allowed to cure to a solid, hydrated CBPC matrix. Next, bound water within the solid, hydrated CBPC matrix is removed. Typically, the bound water is removed by applying heat to the cured CBPC matrix. Preferably, the quantity of heat applied to the cured CBPC matrix is sufficient to drive off water bound within the hydrated CBPC matrix, but not to volatalize other non-water components of the matrix, such as metals and radioactive components. Typically, a temperature range of between 100.degree. C.-200.degree. C. will be sufficient. In another embodiment of the invention wherein the waste and water have been mixed prior to the preparation of the slurry, a select amount of water may be evaporated from the waste and water mixture prior to preparation of the slurry. Another aspect of the invention is a direct anyhydrous CBPC fabrication method wherein water is removed from the slurry by heating and mixing the slurry while allowing the slurry to cure. Additional aspects of the invention are ceramic matrix waste forms prepared by the methods disclosed above.

Wagh, Arun; Maloney, Martin D.

2010-06-29T23:59:59.000Z

268

Hydrogen Bond Breaking and Reformation in Alcohol Oligomers Following Vibrational Relaxation of a Non-Hydrogen-Bond Donating Hydroxyl Stretch  

E-Print Network [OSTI]

Hydrogen Bond Breaking and Reformation in Alcohol Oligomers Following Vibrational Relaxation of a Non-Hydrogen-Bond Donating Hydroxyl Stretch K. J. Gaffney, I. R. Piletic, and M. D. Fayer* Department measured with ultrafast infrared pump-probe experiments. Non-hydrogen-bond donating OD stretches (2690 cm-1

Fayer, Michael D.

269

Batch sorption of divalent metal ions onto brown coal  

SciTech Connect (OSTI)

Brown coal, a relatively abundant and inexpensive material is currently being investigated as an adsorbent to remove some contaminants from aqueous solution. The adsorption of some heavy metals from aqueous solutions on the brown coals was studied as a function of pH, contact time, adsorbent dosage and concentration of metal solutions. A carboxyl, phenolic hydroxyl, and metoxyl functional group present on the coal surface was the adsorption site to remove metal ions from solution by means of ion exchange and hydrogen bonding. Effective removal of heavy metals was achieved at pH values of 4.0-5.0. The experimental data have been analyzed using the Langmuir isotherm models. Under optimized conditions, the percentage of metal removal by brown coal adsorption was over 80%.

Pehlivan, E.; Gode, F. [University of Selcuk, Konya (Turkey). Faculty of Engineering & Architecture

2006-12-15T23:59:59.000Z

270

Ceramic pressure housing with metal endcaps  

DOE Patents [OSTI]

A housing for the containment of instrumentation in a high pressure fluid environment that consists of a metallic endcap and ceramic cylinder bonded together. The improvement comprises a structure which results in the improved sealing of said housing as the fluid pressure increases. The cylindrical ceramic tube and endcap are dimensioned such that mechanical failure does not occur when exposed to the desired external operating pressures which includes up to 36,000 feet of water. The housing is designed to withstand the external operating pressures without being subject to mechanical failure or excessive deformation which results in the loss of pressure housing integrity via cracking or deformation of the ceramic tube, deformation of the endcap, or from failure of the bonding agent.

Downing, Jr., John P. (Port Townsand, WA); DeRoos, Bradley G. (Worthington, OH); Hackman, Donald J. (Columbus, OH)

1995-01-01T23:59:59.000Z

271

Ceramic pressure housing with metal endcaps  

DOE Patents [OSTI]

A housing is disclosed for the containment of instrumentation in a high pressure fluid environment that consists of a metallic endcap and ceramic cylinder bonded together. The improvement comprises a structure which results in the improved sealing of said housing as the fluid pressure increases. The cylindrical ceramic tube and endcap are dimensioned such that mechanical failure does not occur when exposed to the desired external operating pressures which includes up to 36,000 feet of water. The housing is designed to withstand the external operating pressures without being subject to mechanical failure or excessive deformation which results in the loss of pressure housing integrity via cracking or deformation of the ceramic tube, deformation of the endcap, or from failure of the bonding agent. 9 figs.

Downing, J.P. Jr.; DeRoos, B.G.; Hackman, D.J.

1995-06-27T23:59:59.000Z

272

Ultrasonic evaluation of beryllium-copper diffusion bonds  

SciTech Connect (OSTI)

A study was performed to compare the effectiveness of several advanced ultrasonic techniques when used to determine the strength of diffusion bonded beryllium-copper, which heretofore have each been applied to only a few material systems. The use of integrated backscatter calculations, frequency domain reflection coefficients, and time-of-flight variance was compared in their ability to characterize the bond strength in a series of beryllium-copper diffusion bond samples having a wide variation in bond quality. Correlation of integrated backscatter calculations and time-of-flight variance with bond strength was good. Some correlation of the slope of the frequency based reflection coefficient was shown for medium and high strength bonds, while its Y-intercept showed moderate correlation for all bond strengths.

Jamieson, E.E.

2000-06-08T23:59:59.000Z

273

Metal-phosphate binders  

DOE Patents [OSTI]

A metal-phosphate binder is provided. The binder may include an aqueous phosphoric acid solution, a metal-cation donor including a metal other than aluminum, an aluminum-cation donor, and a non-carbohydrate electron donor.

Howe, Beth Ann [Lewistown, IL; Chaps-Cabrera, Jesus Guadalupe [Coahuila, MX

2009-05-12T23:59:59.000Z

274

Discovery of N-(4-(2-Amino-3-chloropyridin-4-yloxy)-3-fluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (BMS-777607), a Selective and Orally Efficacious Inhibitor of the Met Kinase Superfamily  

SciTech Connect (OSTI)

Substituted N-(4-(2-aminopyridin-4-yloxy)-3-fluoro-phenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamides were identified as potent and selective Met kinase inhibitors. Substitution of the pyridine 3-position gave improved enzyme potency, while substitution of the pyridone 4-position led to improved aqueous solubility and kinase selectivity. Analogue 10 demonstrated complete tumor stasis in a Met-dependent GTL-16 human gastric carcinoma xenograft model following oral administration. Because of its excellent in vivo efficacy and favorable pharmacokinetic and preclinical safety profiles, 10 has been advanced into phase I clinical trials.

Schroeder, Gretchen M.; An, Yongmi; Cai, Zhen-Wei; Chen, Xiao-Tao; Clark, Cheryl; Cornelius, Lyndon A.M.; Dai, Jun; Gullo-Brown, Johnni; Gupta, Ashok; Henley, Benjamin; Hunt, John T.; Jeyaseelan, Robert; Kamath, Amrita; Kim, Kyoung; Lippy, Jonathan; Lombardo, Louis J.; Manne, Veeraswamy; Oppenheimer, Simone; Sack, John S.; Schmidt, Robert J.; Shen, Guoxiang; Stefanski, Kevin; Tokarski, John S.; Trainor, George L.; Wautlet, Barri S.; Wei, Donna; Williams, David K.; Zhang, Yingru; Zhang, Yueping; Fargnoli, Joseph; Borzilleri, Robert M.; (BMS)

2009-12-01T23:59:59.000Z

275

Bond selective chemistry beyond the adiabatic approximation  

SciTech Connect (OSTI)

One of the most important challenges in chemistry is to develop predictive ability for the branching between energetically allowed chemical reaction pathways. Such predictive capability, coupled with a fundamental understanding of the important molecular interactions, is essential to the development and utilization of new fuels and the design of efficient combustion processes. Existing transition state and exact quantum theories successfully predict the branching between available product channels for systems in which each reaction coordinate can be adequately described by different paths along a single adiabatic potential energy surface. In particular, unimolecular dissociation following thermal, infrared multiphoton, or overtone excitation in the ground state yields a branching between energetically allowed product channels which can be successfully predicted by the application of statistical theories, i.e. the weakest bond breaks. (The predictions are particularly good for competing reactions in which when there is no saddle point along the reaction coordinates, as in simple bond fission reactions.) The predicted lack of bond selectivity results from the assumption of rapid internal vibrational energy redistribution and the implicit use of a single adiabatic Born-Oppenheimer potential energy surface for the reaction. However, the adiabatic approximation is not valid for the reaction of a wide variety of energetic materials and organic fuels; coupling between the electronic states of the reacting species play a a key role in determining the selectivity of the chemical reactions induced. The work described below investigated the central role played by coupling between electronic states in polyatomic molecules in determining the selective branching between energetically allowed fragmentation pathways in two key systems.

Butler, L.J. [Univ. of Chicago, IL (United States)

1993-12-01T23:59:59.000Z

276

Partial-Transient-Liquid-Phase Bonding of Advanced Ceramics Using Surface-Modified Interlayers  

E-Print Network [OSTI]

Alumina Diffusion Bonding and Titanium Active Brazing."O 3 -Titanium Adhesion in the View of the Diffusion Bonding

Reynolds, Thomas Bither

2012-01-01T23:59:59.000Z

277

Metal Hydrides - Science Needs  

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

with traditions in metal hydride research Metal and Ceramic Sciences Condensed Matter Physics Materials Chemistry Chemical and Biological Sciences Located on campus of Tier...

278

Repairable chip bonding/interconnect process  

DOE Patents [OSTI]

A repairable, chip-to-board interconnect process which addresses cost and testability issues in the multi-chip modules. This process can be carried out using a chip-on-sacrificial-substrate technique, involving laser processing. This process avoids the curing/solvent evolution problems encountered in prior approaches, as well is resolving prior plating problems and the requirements for fillets. For repairable high speed chip-to-board connection, transmission lines can be formed on the sides of the chip from chip bond pads, ending in a gull wing at the bottom of the chip for subsequent solder.

Bernhardt, Anthony F. (Berkeley, CA); Contolini, Robert J. (Livermore, CA); Malba, Vincent (Livermore, CA); Riddle, Robert A. (Tracy, CA)

1997-01-01T23:59:59.000Z

279

Repairable chip bonding/interconnect process  

DOE Patents [OSTI]

A repairable, chip-to-board interconnect process which addresses cost and testability issues in the multi-chip modules is disclosed. This process can be carried out using a chip-on-sacrificial-substrate technique, involving laser processing. This process avoids the curing/solvent evolution problems encountered in prior approaches, as well is resolving prior plating problems and the requirements for fillets. For repairable high speed chip-to-board connection, transmission lines can be formed on the sides of the chip from chip bond pads, ending in a gull wing at the bottom of the chip for subsequent solder. 10 figs.

Bernhardt, A.F.; Contolini, R.J.; Malba, V.; Riddle, R.A.

1997-08-05T23:59:59.000Z

280

Covalent Bonding in Actinide Sandwich Molecules  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User GroupInformationE-GovNatural GasCourse ClustersCovalent Bonding in

Note: This page contains sample records for the topic "metal oxo bonds" 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

Qualified Energy Conservation Bonds | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket37963 Vol.Department of EnergyMarchU.S.Bonds

282

The Molecular Bond: October 2014 | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2 andThe Molecular Bond: October 2014 The Molecular

283

Qualified Energy Conservation Bond (QECB) Update: New  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L dDepartment of EnergyQualified Energy Conservation Bond (QECB)

284

Qualified Energy Conservation Bonds | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L dDepartment of EnergyQualified EnergyBonds Qualified Energy

285

Covalent Bonding in Actinide Sandwich Molecules  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3. |ID#:Synchrotron RadiationCovalent Bonding

286

Cement Bond Log | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:Energy Information on PV EconomicsOregon: Energy ResourcesCeilingCement Bond

287

Thermochemistry for Hydrocarbon Intermediates Chemisorbed on Metal Surfaces: CHn-m(CH3)m with n ) 1, 2, 3 and m e n on Pt, Ir,  

E-Print Network [OSTI]

for hydrocarbons on metal surfaces similar to the Benson scheme so useful for gas-phase hydrocarbons. This is used-bond isomerization of olefins, (3) dehydrogenation and dehydro- isomerization to aromatics, (4) isomerization processes. Although molecular orbital and valence bond theories have helped explain the nature of reactivity

Goddard III, William A.

288

Final Environmental Impact Statement for the Treatment and Management of Sodium-Bonded Spent Nuclear Fuel  

SciTech Connect (OSTI)

DOE is responsible for the safe and efficient management of its sodium-bonded spent nuclear fuel. This fuel contains metallic sodium, a highly reactive material; metallic uranium, which is also reactive; and in some cases, highly enriched uranium. The presence of reactive materials could complicate the process of qualifying and licensing DOE's sodium-bonded spent nuclear fuel inventory for disposal in a geologic repository. Currently, more than 98 percent of this inventory is located at the Idaho National Engineering and Environmental Laboratory (INEEL), near Idaho Falls, Idaho. In addition, in a 1995 agreement with the State of Idaho, DOE committed to remove all spent nuclear fuel from Idaho by 2035. This EIS evaluates the potential environmental impacts associated with the treatment and management of sodium-bonded spent nuclear fuel in one or more facilities located at Argonne National Laboratory-West (ANL-W) at INEEL and either the F-Canyon or Building 105-L at the Savannah River Site (SRS) near Aiken, South Carolina. DOE has identified and assessed six proposed action alternatives in this EIS. These are: (1) electrometallurgical treatment of all fuel at ANL-W, (2) direct disposal of blanket fuel in high-integrity cans with the sodium removed at ANL-W, (3) plutonium-uranium extraction (PUREX) processing of blanket fuel at SRS, (4) melt and dilute processing of blanket fuel at ANL-W, (5) melt and dilute processing of blanket fuel at SRS, and (6) melt and dilute processing of all fuel at ANL-W. In addition, Alternatives 2 through 5 include the electrometallurgical treatment of driver fuel at ANL-W. Under the No Action Alternative, the EIS evaluates both the continued storage of sodium-bonded spent nuclear fuel until the development of a new treatment technology or direct disposal without treatment. Under all of the alternatives, the affected environment is primarily within 80 kilometers (50 miles) of spent nuclear fuel treatment facilities. Analyses indicate little difference in the environmental impacts among alternatives. DOE has identified electrometallurgical treatment as its Preferred Alternative for the treatment and management of all sodium-bonded spent nuclear fuel, except for the Fermi-1 blanket fuel. The No Action Alternative is preferred for the Fermi-1 blanket spent nuclear fuel.

N /A

2000-08-04T23:59:59.000Z

289

Heavy metal biosensor  

SciTech Connect (OSTI)

Compositions and methods are provided for detection of certain heavy metals using bacterial whole cell biosensors.

Hillson, Nathan J; Shapiro, Lucille; Hu, Ping; Andersen, Gary L

2014-04-15T23:59:59.000Z

290

Torsion Testing of Diffusion Bonded LIGA Formed Nickel  

SciTech Connect (OSTI)

A test technique has been devised which is suitable for the testing of the bond strength of batch diffusion bonded LIGA or DXRL defined structures. The method uses a torsion tester constructed with the aid of LIGA fabrication and distributed torsion specimens which also make use of the high aspect ratio nature of DXRL based processing. Measurements reveal achieved bond strengths of 130MPa between electroplated nickel with a bond temperature of 450 C at 7 ksi pressure which is a sufficiently low temperature to avoid mechanical strength degradation.

Buchheit, T.E.; Christenson, T.R.; Schmale, D.T.

1999-01-27T23:59:59.000Z

291

FITCH RATES ENERGY NORTHWEST (WA) ELECTRIC REV REF BONDS 'AA...  

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

FITCH RATES ENERGY NORTHWEST (WA) ELECTRIC REV REF BONDS 'AA'; OUTLOOK STABLE Fitch Ratings-Austin-08 April 2015: Fitch Ratings assigns 'AA' ratings to the following Energy...

292

Qualified Energy Conservation Bonds (QECBs) APPENDIX A: QECB...  

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

Qualified energy conservation bonds appendices. Author: U. S. Department of Energy Appendix A: QECB Counsel, Underwriters, Banks and Trustees More Documents & Publications...

293

Hydrogen-Bond Networks: Strengths of Different Types of Hydrogen...  

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

energetic driving force for enzyme catalysis and conformational changes such as in protein folding due to multiple hydrogen bonds in a HBN. Citation: Shokri A, Y Wang, GA...

294

ORNL: Low-Cost Direct Bonded Aluminum (DBA) Substrates (Agreement...  

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

Direct Bonded Aluminum (DBA) Substrates (Agreement ID:23278) 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

295

ORNL: Low-Cost Direct Bonded Aluminum (DBA) Substrates (Agreement...  

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

Low-Cost Direct Bonded Aluminum (DBA) Substrates H. -T. Lin, A. A. Wereszczak, and S. Waters Oak Ridge National Laboratory This presentation does not contain any proprietary,...

296

Energetics of Hydrogen Bond Network Rearrangements in Liquid...  

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

Energetics of Hydrogen Bond Network Rearrangements in Liquid Water Print The unique chemical and physical properties of liquid water are thought to result from the highly...

297

adhesively bonded shell: Topics by E-print Network  

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

various conditions, including the type of surface preparation, pH of the environmental media, (more) Xu, Dingying 2004-01-01 2 Bond Characteristics and Qualifications of...

298

Wafer bonded epitaxial templates for silicon heterostructures  

DOE Patents [OSTI]

A heterostructure device layer is epitaxially grown on a virtual substrate, such as an InP/InGaAs/InP double heterostructure. A device substrate and a handle substrate form the virtual substrate. The device substrate is bonded to the handle substrate and is composed of a material suitable for fabrication of optoelectronic devices. The handle substrate is composed of a material suitable for providing mechanical support. The mechanical strength of the device and handle substrates is improved and the device substrate is thinned to leave a single-crystal film on the virtual substrate such as by exfoliation of a device film from the device substrate. An upper portion of the device film exfoliated from the device substrate is removed to provide a smoother and less defect prone surface for an optoelectronic device. A heterostructure is epitaxially grown on the smoothed surface in which an optoelectronic device may be fabricated.

Atwater, Jr., Harry A. (So. Pasadena, CA); Zahler, James M. (Pasadena, CA); Morral, Anna Fontcubera I (Paris, FR)

2008-03-11T23:59:59.000Z

299

Ternary metal-rich sulfide with a layered structure  

DOE Patents [OSTI]

A ternary Nb-Ta-S compound is provided having the atomic formula, Nb.sub.1.72 Ta.sub.3.28 S.sub.2, and exhibiting a layered structure in the sequence S-M3-M2-M1-M2-M3-S wherein S represents sulfur layers and M1, M2, and M3 represent Nb/Ta mixed metal layers. This sequence generates seven sheets stacked along the [001] direction of an approximate body centered cubic crystal structure with relatively weak sulfur-to-sulfur van der Waals type interactions between adjacent sulfur sheets and metal-to-metal bonding within and between adjacent mixed metal sheets.

Franzen, Hugo F. (Ames, IA); Yao, Xiaoqiang (Ames, IA)

1993-08-17T23:59:59.000Z

300

Vacancy Hardening and Softening in Transition Metal Carbides and Nitrides  

SciTech Connect (OSTI)

The effects of vacancies on mechanical properties of the transition metal carbides and nitrides are studied using the ab initio pseudopotential approach. Calculated shear elastic stiffness and electronic structures show that the vacancy produces entirely different effects on the mechanical strength of groups IVb nitrides and Vb carbides. It is found that the occupation of shear-unstable metallic dd bonding states changes essentially in an opposite way for the carbides and nitrides in the presence of vacancies, resulting in different responses to shear stress. Our study provides an atomistic understanding of the anomaly in hardness for these substoichiometric materials.

Jhi, Seung-Hoon; Louie, Steven G.; Cohen, Marvin L.; Ihm, Jisoon

2001-04-09T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Method of bonding single crystal quartz by field-assisted bonding  

DOE Patents [OSTI]

The method of producing a hermetic stable structural bond between quartz crystals includes providing first and second quartz crystals and depositing thin films of borosilicate glass and silicon on portions of the first and second crystals, respectively. The portions of the first and second crystals are then juxtaposed in a surface contact relationship and heated to a temperature for a period sufficient to cause the glass and silicon films to become electrically conductive. An electrical potential is then applied across the first and second crystals for creating an electrostatic field between the adjoining surfaces and causing the juxtaposed portions to be attracted into an intimate contact and form a bond for joining the adjoining surfaces of the crystals.

Curlee, Richard M. (Tijeras, NM); Tuthill, Clinton D. (Edgewood, NM); Watkins, Randall D. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

302

A nonchromate method for refurbishment of worn metallic components  

SciTech Connect (OSTI)

Hard chrome electrodeposition is a widely used method for building up worn metallic components, but regulations concerning hexavalent chromium effluent are making this process less acceptable. A new method is described in which electroless nickel with phosphorus is used in a closed-loop system in order to build up the worn surface, and an amorphous diamond-like carbon (DLC) coating is bonded to this to provide a low-friction bearing surface. The combination is highly resistant to wear and corrosion.

Dearnaley, G.; Badger, P. [Southwest Research Inst., San Antonio, TX (United States); [Wear-Cote International Inc., Rock Island, IL (United States)

1995-12-31T23:59:59.000Z

303

Metal-Air Batteries  

SciTech Connect (OSTI)

Metal-air batteries have much higher specific energies than most currently available primary and rechargeable batteries. Recent advances in electrode materials and electrolytes, as well as new designs on metal-air batteries, have attracted intensive effort in recent years, especially in the development of lithium-air batteries. The general principle in metal-air batteries will be reviewed in this chapter. The materials, preparation methods, and performances of metal-air batteries will be discussed. Two main metal-air batteries, Zn-air and Li-air batteries will be discussed in detail. Other type of metal-air batteries will also be described.

Zhang, Jiguang; Bruce, Peter G.; Zhang, Gregory

2011-08-01T23:59:59.000Z

304

Quantum Finance Hamiltonian for Coupon Bond European and Barrier Options  

E-Print Network [OSTI]

Quantum Finance Hamiltonian for Coupon Bond European and Barrier Options Belal E. Baaquie RMI are financial derivatives that can be analyzed in the Hamiltonian formulation of quantum finance. Forward-2963 Fax: (65) 6777-6126 Email: phybeb@nus.edu.sg #12;Quantum Finance Hamiltonian for Coupon Bond European

Chaudhuri, Sanjay

305

July 18, 2012 Qualified Energy Conservation Bond (QECB) Update: New  

E-Print Network [OSTI]

July 18, 2012 Qualified Energy Conservation Bond (QECB) Update: New Guidance from the U.S. Department of Treasury and the Internal Revenue Service Qualified Energy Conservation Bonds (QECBs a range of energy conservation projects at very attractive borrowing rates over long contract terms

306

BOND PROPERTIES OF CFCC PRESTRESSING STRANDS IN PRETENSIONED CONCRETE BEAMS  

E-Print Network [OSTI]

BOND PROPERTIES OF CFCC PRESTRESSING STRANDS IN PRETENSIONED CONCRETE BEAMS by Nolan G. Domenico plastic prestressing strands (CFCC) in pretensioned concrete beams. The bond characteristics are examined for 15.2 mm diameter and 12.5 mm diameter seven-wire CFCC strands. Ten prestressed concrete beams

307

Time- and temperature-dependent failures of a bonded joint  

SciTech Connect (OSTI)

Time and temperature dependent properties of a tubular lap bonded joint are reported. The joint bonds a cast iron rod and a composite pipe together with an epoxy type of an adhesive material containing chopped glass fiber. A new fabrication method is proposed.

Sihn, Sangwook; Miyano, Yasushi; Tsai, S.W. [Stanford Univ., Palo Alto, CA (United States)

1997-07-01T23:59:59.000Z

308

Silica coated magnetite nanoparticles for removal of heavy metal ions from polluted waters  

E-Print Network [OSTI]

Magnetic removal of Hg2+ and other heavy metal ions like Cd2+, Pb2+ etc. using silica coated magnetite particles from polluted waters is a current topic of active research to provide efficient water recycling and long term high quality water. The technique used to study the bonding characteristics of such kind of nanoparticles with the heavy metal ions is a very sensitive hyperfine specroscopy technique called the perturbed angular correlation technique (PAC).

Dash, Monika

2013-01-01T23:59:59.000Z

309

Rhodium mediated bond activation: from synthesis to catalysis  

SciTech Connect (OSTI)

Recently, our lab has developed monoanionic tridentate ligand, To{sup R}, showing the corresponding coordination chemistry and catalyst reactivity of magnesium, zirconium, zinc and iridium complexes. This thesis details synthetic chemistry, structural study and catalytic reactivity of the To{sup R}-supported rhodium compounds. Tl[To{sup R}] has been proved to be a superior ligand transfer agent for synthesizing rhodium complexes. The salt metathesis route of Tl[To{sup M}] with [Rh({mu}-Cl)(CO)]{sub 2} and [Rh({mu}- Cl)(COE)]{sub 2} gives To{sup M}Rh(CO){sub 2} (2.2) and To{sup M}RhH({eta}{sup 3}-C{sub 8}H{sub 13}) (3.1) respectively while Tl[To{sup P}] with [Rh({mu}-Cl)(CO)]{sub 2} affords To{sup P}Rh(CO){sub 2} (2.3). 2.2 reacts with both strong and weak electrophiles, resulting in the oxazoline N-attacked and the metal center-attacked compounds correspondingly. Using one of the metal center-attacked electrophiles, 2.3 was demonstrated to give high diastereoselectivity. Parallel to COE allylic C-H activation complex 3.1, the propene and allylbenzene allylic C-H activation products have also been synthesized. The subsequent functionalization attempts have been examined by treating with Brønsted acids, Lewis acids, electrophiles, nucleophiles, 1,3-dipolar reagents and reagents containing multiple bonds able to be inserted. Various related complexes have been obtained under these conditions, in which one of the azide insertion compounds reductively eliminates to give an allylic functionalization product stoichiometrically. 3.1 reacts with various primary alcohols to give the decarbonylation dihydride complex To{sup M}Rh(H){sub 2}CO (4.1). 4.1 shows catalytic reactivity for primary alcohol decarbonylation under a photolytic condition. Meanwhile, 2.2 has been found to be more reactive than 4.1 for catalytic alcohol decarbonylation under the same condition. Various complexes and primary alcohols have been investigated as well. The proposed mechanism is based on the stochiometric reactions of the possible metal and organic intermediates. Primary amines, hypothesized to undergo a similar reaction pathway, have been verified to give dehydrogenative coupling product, imines. In the end, the well-developed neutral tridentate Tpm coordinates to the rhodium bis(ethylene) dimer in the presence of TlPF{sub 6} to give the cationic complex, [TpmRh(C{sub 2}H{sub 4}){sub 2}][PF{sub 6}] (5.1). 5.1 serves as the first example of explicit determination of the solid state hapticity, evidenced by X-ray structure, among all the cationic Tpm{sup R}M(C{sub 2}H{sub 4}){sub 2}{sup +} (Tpm{sup R} = Tpm, Tpm*, M = Rh, Ir) derivatives. The substitution chemistry of this compound has been studied by treating with soft and hard donors. The trimethylphosphine-sbustituted complex activates molecular hydrogen to give the dihydride compound.

Ho, Hung-An

2012-03-06T23:59:59.000Z

310

Clean renewable energy bonds (CREBs) present a low-cost opportunity for public entities to issue bonds to finance  

E-Print Network [OSTI]

Clean renewable energy bonds (CREBs) present a low-cost opportunity for public entities to issue bonds to finance renewable energy projects. The federal government lowers the cost of debt by providing created under the Energy Tax Incentives Act of 2005 (and detailed in Internal Revenue Code Section 54

311

Liquid Metal Transformers  

E-Print Network [OSTI]

The room temperature liquid metal is quickly emerging as an important functional material in a variety of areas like chip cooling, 3D printing or printed electronics etc. With diverse capabilities in electrical, thermal and flowing behaviors, such fluid owns many intriguing properties that had never been anticipated before. Here, we show a group of unconventional phenomena occurring on the liquid metal objects. Through applying electrical field on the liquid metals immersed in water, a series of complex transformation behaviors such as self-assembling of a sheet of liquid metal film into a single sphere, quick mergences of separate metal droplets, controlled self-rotation and planar locomotion of liquid metal objects can be realized. Meanwhile, it was also found that two accompanying water vortexes were induced and reliably swirled near the rotating liquid metal sphere. Further, effects of the shape, size, voltage, orientation and geometries of the electrodes to control the liquid metal transformers were clar...

Sheng, Lei; Liu, Jing

2014-01-01T23:59:59.000Z

312

Metal phthalocyanine catalysts  

DOE Patents [OSTI]

As a new composition of matter, alkali metal or ammonium or tetraalkylammonium diazidoperfluorophthalocyanatoferrate. Other embodiments of the invention comprise compositions wherein the metal of the coordination complex is cobalt, manganese and chromium.

Ellis, Jr., Paul E. (Downingtown, PA); Lyons, James E. (Wallingford, PA)

1994-01-01T23:59:59.000Z

313

Synthesis and reactivity of sterically congested metallacyclobutenes and metal-mediated carbon-sulfur bond activation  

E-Print Network [OSTI]

assigned to the (C! C) stretch. iPr N i Pr N N i Pr -COD + 2 [Ni(COD) 2 ] N iPrN iPr iPr N Ni Ni iPr iPr iPr N N iPr N Ni iPr N iPr Scheme

Vélez, Carmen L.

2011-01-01T23:59:59.000Z

314

Stress analysis and failure of the bond interface of a metal matrix component  

E-Print Network [OSTI]

and Alman, 1990), Advanced fibers are made by chemical vapor deposition (CVD), as in the case of the SiC fiber, SCS-6, manufactured by Textron. In this process a small substrate carbon core is coated by beta silicon carbide in a glass reactor tube (Buck... Verification Problem 1 Verification Problem 2 Verification Problem 3 30 32 33 COMPONENT AND PROBLEiVI DESCRIPTION 37 Problem Statement 37 RESULTS Laminate Failure Bondline Failure Boundary Layer Effects (3-d Effects) Page 41 48 57 61 CONCLUSION...

Pamel, Michele Lynn

1995-01-01T23:59:59.000Z

315

Tuning the Metal-Adsorbate Chemical Bond through the Ligand Effect on  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortalBRDFTunable Thermal Link8

316

Covalency in Metal-Oxygen Multiple Bonds Evaluated Using Oxygen K-edge  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3. |ID#:Synchrotron Radiation TheSpectroscopy

317

Theoretical Electron Density Distributions for Fe-and Cu-Sulfide Earth Materials: A Connection between Bond Length, Bond Critical Point Properties, Local Energy Densities,  

E-Print Network [OSTI]

, Biomolecular and Chemical Sciences, UniVersity of Western Australia, Australia ReceiVed: August 7, 2006 between Bond Length, Bond Critical Point Properties, Local Energy Densities, and Bonded Interactions G. V; In Final Form: December 6, 2006 Bond critical point and local energy density properties together with net

Downs, Robert T.

318

Durable metallized polymer mirror  

DOE Patents [OSTI]

A metallized polymer mirror construction having improved durability against delamination and tunneling, comprising: an outer layer of polymeric material; a metal oxide layer underlying the outer layer of polymeric material; a silver reflective layer underneath the metal oxide layer; and a layer of adhesive attaching the silver layer to a substrate.

Schissel, Paul O. (Golden, CO); Kennedy, Cheryl E. (Lafayette, CO); Jorgensen, Gary J. (Pine, CO); Shinton, Yvonne D. (Northglenn, CO); Goggin, Rita M. (Englewood, CO)

1994-01-01T23:59:59.000Z

319

Durable metallized polymer mirror  

DOE Patents [OSTI]

A metallized polymer mirror construction is disclosed having improved durability against delamination and tunneling, comprising: an outer layer of polymeric material; a metal oxide layer underlying the outer layer of polymeric material; a silver reflective layer underneath the metal oxide layer; and a layer of adhesive attaching the silver layer to a substrate. 6 figs.

Schissel, P.O.; Kennedy, C.E.; Jorgensen, G.J.; Shinton, Y.D.; Goggin, R.M.

1994-11-01T23:59:59.000Z

320

STRATEGIC COMBINATION OF TRANSITION METAL-CATALYZED REACTIONS FOR ECONOMICAL ONE-POT SYNTHESES OF N-HETEROCYCLES  

E-Print Network [OSTI]

in yield and efficiency. Thus, increasing the efficiency and minimizing the wastes is the need of the hour.1 An attractive solution towards this problem would be strategically sequencing the powerful carbon-carbon bond-forming reactions... environmentally and economically. In particular, sequential transition metal-catalyzed reactions are well-suited for one-pot processes due to their broad range of carbon-carbon bond formation and functional group tolerance.5-6 Sequential...

Raikar, Sandeep

2013-08-31T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Computational Studies of the Electronic Structures and Mechanisms of Late Transition Metal Systems  

E-Print Network [OSTI]

that were studied. The first system focuses on the formation of a carbon-bromine bond from the reaction of Ni(Ar)(Br)(pic) (Ar = 2-phenylpyridine, pic = 2-picoloine) with Br2. Unlike the typical behavior of heavier group 10 metals that have a wider range...

Pitts, Amanda

2013-08-27T23:59:59.000Z

322

Transient-Liquid-Phase (TLP) Bonding of Al2O3 Using Nb-based Multilayer Interlayers  

E-Print Network [OSTI]

Alumina Diffusion Bonding and Titanium Active Brazing.Requirements for Diffusion Bonding Titanium. In: Jaffee RI,O 3 -Titanium Adhesion in the View of the Diffusion Bonding

Hong, Sung Moo

2009-01-01T23:59:59.000Z

323

Transient-Liquid-Phase (TLP) Bonding of Al2O3 Using Nb-based Multilayer Interlayers  

E-Print Network [OSTI]

p. 539-44. Derby B. Diffusion Bonding. In: Nicholas M (ed).Requirements for Diffusion Bonding Titanium. In: Jaffee RI,Contact During Diffusion Bonding. Metallurgical Transactions

Hong, Sung Moo

2009-01-01T23:59:59.000Z

324

Kinetics and mechanism of the thermal dissociation of O,O'-bis(1,3,5-TRI-tert-butyl-4-oxo-2,5-cyclo-hexadienyl)-p-benzoquinone dioxime in solution  

SciTech Connect (OSTI)

The kinetics and mechanism of the thermal dissociation of O,O'-bis(1,3,5-tri-tert-butyl-4-oxo-2,5-cyclohexadienyl)-p-benzoquinone dioxime (quinol ether) in solutions in nonpolar solvents were investigated. The dissociation of the quinol ether is reversible two-stage process and involves the formation of an intermediate radical. In relation to the reaction conditions (initial concentration, temperature) the dissociation rate of the quinol ether obeys the kinetic equations omega = k/sub eff/ x c/sup 1/2/ or omega = k/sub 1/c. The change in the reaction order is due to the ratio of the rates of dissociation of the intermediate radical and of its reaction with the phenoxyl radical. The ESR spectra were recorded on a Varian E-9 radiospectrometer with high-frequency modulation of 100 kHz.

Khizhnyi, V.A.; Danilova, T.A.; Goloverda, G.Z.; Dobronravova, Z.A.

1987-09-20T23:59:59.000Z

325

E-Print Network 3.0 - adhesively bonded lap Sample Search Results  

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

The lap-shear strengths of adhesively bonded polystyrene (PS), high-density polyethylene (HDPE... bonded in a lap-shear geometry. The bonded area of adhesion was nominally...

326

Hydrogen Bond Dynamics Probed with Ultrafast Infrared Heterodyne-Detected Multidimensional Vibrational Stimulated Echoes  

E-Print Network [OSTI]

Hydrogen Bond Dynamics Probed with Ultrafast Infrared Heterodyne-Detected Multidimensional, USA (Received 24 February 2003; published 3 December 2003) Hydrogen bond dynamics are explicated hydrogen bonded network are measured with ultrashort (

Fayer, Michael D.

327

Liquid Metal Transformers  

E-Print Network [OSTI]

The room temperature liquid metal is quickly emerging as an important functional material in a variety of areas like chip cooling, 3D printing or printed electronics etc. With diverse capabilities in electrical, thermal and flowing behaviors, such fluid owns many intriguing properties that had never been anticipated before. Here, we show a group of unconventional phenomena occurring on the liquid metal objects. Through applying electrical field on the liquid metals immersed in water, a series of complex transformation behaviors such as self-assembling of a sheet of liquid metal film into a single sphere, quick mergences of separate metal droplets, controlled self-rotation and planar locomotion of liquid metal objects can be realized. Meanwhile, it was also found that two accompanying water vortexes were induced and reliably swirled near the rotating liquid metal sphere. Further, effects of the shape, size, voltage, orientation and geometries of the electrodes to control the liquid metal transformers were clarified. Such events are hard to achieve otherwise on rigid metal or conventional liquid spheres. This finding has both fundamental and practical significances which suggest a generalized way of making smart soft machine, collecting discrete metal fluids, as well as flexibly manipulating liquid metal objects including accompanying devices.

Lei Sheng; Jie Zhang; Jing Liu

2014-01-30T23:59:59.000Z

328

Hydrogen-Bond Networks: Strengths of Different Types of Hydrogen Bonds and An Alternative to the Low Barrier Hydrogen-Bond Proposal  

SciTech Connect (OSTI)

We report quantifying the strengths of different types of hydrogen bonds in hydrogen bond networks (HBNs) via measurement of the adiabatic electron detachment energy of the conjugate base of a small covalent polyol model compound (i.e., (HOCH2CH2CH(OH)CH2)2CHOH) in the gas phase and the pKa of the corresponding acid in DMSO. The latter result reveals that the hydrogen bonds to the charged center and those that are one solvation shell further away (i.e., primary and secondary) provide 5.3 and 2.5 pKa units of stabilization per hydrogen bond in DMSO. Computations indicate that these energies increase to 8.4 and 3.9 pKa units in benzene and that the total stabilizations are 16 (DMSO) and 25 (benzene) pKa units. Calculations on a larger linear heptaol (i.e., (HOCH2CH2CH(OH)CH2CH(OH)CH2)2CHOH) reveal that the terminal hydroxyl groups each contribute 0.6 pKa units of stabilization in DMSO and 1.1 pKa units in benzene. All of these results taken together indicate that the presence of a charged center can provide a powerful energetic driving force for enzyme catalysis and conformational changes such as in protein folding due to multiple hydrogen bonds in a HBN.

Shokri, Alireza; Wang, Yanping; O'Doherty, George A.; Wang, Xue B.; Kass, Steven R.

2013-11-27T23:59:59.000Z

329

Extraction process for removing metallic impurities from alkalide metals  

DOE Patents [OSTI]

A development is described for removing metallic impurities from alkali metals by employing an extraction process wherein the metallic impurities are extracted from a molten alkali metal into molten lithium metal due to the immiscibility of the alkali metals in lithium and the miscibility of the metallic contaminants or impurities in the lithium. The purified alkali metal may be readily separated from the contaminant-containing lithium metal by simple decanting due to the differences in densities and melting temperatures of the alkali metals as compared to lithium.

Royer, Lamar T. (Knoxville, TN)

1988-01-01T23:59:59.000Z

330

Semi-flexible hydrogen-bonded and non-hydrogen bonded lattice polymers  

E-Print Network [OSTI]

We investigate the addition of stiffness to the lattice model of hydrogen-bonded polymers in two and three dimensions. We find that, in contrast to polymers that interact via a homogeneous short-range interaction, the collapse transition is unchanged by any amount of stiffness: this supports the physical argument that hydrogen bonding already introduces an effective stiffness. Contrary to possible physical arguments, favouring bends in the polymer does not return the model's behaviour to that comparable to the semi-flexible homogeneous interaction model, where the canonical $\\theta$-point occurs for a range of parameter values. In fact, for sufficiently large bending energies the crystal phase disappears altogether, and no phase transition of any type occurs. We also compare the order-disorder transition from the globule phase to crystalline phase in the semi-flexible homogeneous interaction model to that for the fully-flexible hybrid model with both hydrogen and non-hydrogen like interactions. We show that these phase transitions are of the same type and are a novel polymer critical phenomena in two dimensions. That is, it is confirmed that in two dimensions this transition is second-order, unlike in three dimensions where it is known to be first order. We also estimate the crossover exponent and show that there is a divergent specific heat, finding $\\phi=0.7(1)$ or equivalently $\\alpha=0.6(2)$. This is therefore different from the $\\theta$ transition, for which $\\alpha=-1/3$.

J Krawczyk; AL Owczarek; T Prellberg

2008-07-06T23:59:59.000Z

331

E-Print Network 3.0 - affects durably bonding Sample Search Results  

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

adhesive layers are less affected, creep behavior of adhesively bonded joints... ABSTRACT SMITH, GLEN. Bond Characteristics and Qualifications of Adhesives for ... Source:...

332

E-Print Network 3.0 - adhesive bond strength Sample Search Results  

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

The lap-shear strengths of adhesively bonded polystyrene (PS), high-density polyethylene (HDPE... 12;strength of the substrate, or the adhesive strength of the bond 9....

333

E-Print Network 3.0 - amide bonds stabilize Sample Search Results  

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

Amide-Amide and Amide-Water Hydrogen Bonds Summary: Bonds: Implicationsfor Protein Folding and Stability Eric S.Eberhardt and Ronald T. Rained Department... folds, many of...

334

Surface Modification by Atmospheric Pressure Plasma for Improved Bonding  

E-Print Network [OSTI]

prepared using (a) the IPA wipe (control), (b) sanding, (c)of aluminum alloy 2024: a) IPA wiped, b) sanded with 180bond primer with a) the IPA wipe (control), b) sanding, c)

Williams, Thomas Scott

2013-01-01T23:59:59.000Z

335

Spectroscopic investigations of hydrogen bond dynamics in liquid water  

E-Print Network [OSTI]

Many of the remarkable physical and chemical properties of liquid water are due to the strong influence hydrogen bonds have on its microscopic dynamics. However, because of the fast timescales involved, there are relatively ...

Fecko, Christopher J., 1975-

2004-01-01T23:59:59.000Z

336

Bond resonance energy and verification of the isolated pentagon rule  

SciTech Connect (OSTI)

The isolated pentagon rule (IPR) states that fullerenes with isolated pentagons are kinetically much more stable than their fused pentagon counterparts. This rule can be verified in terms of a graph-theoretically defined bond resonance energy. In general, a {pi} bond shared by two pentagons has a large negative bond resonance energy, thus contributing significantly to the increase in kinetic instability or chemical reactivity of the molecule. The existence of such highly antiaromatic local structures sharply distinguishes IPR-violating fullerenes from isolated-pentagon isomers. {pi}bonds shared by two pentagons are shared by many antiaromatic conjugated circuits but not by relatively small aromatic conjugated circuits. 39 refs., 3 figs., 5 tabs.

Aihara, Jun Ichi [Shizuoka Univ. (Japan)

1995-04-12T23:59:59.000Z

337

Qualified Energy Conservation Bond (QECB) Update: New Guidance...  

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

the U.S. Department of Treasury and the Internal Revenue Service Qualified Energy Conservation Bond (QECB) Update: New Guidance from the U.S. Department of Treasury and the...

338

aliphatic ch bonds: Topics by E-print Network  

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

2015-01-01 39 H-atom high-n Rydberg time-of-flight spectroscopy of CH bond fission in acrolein dissociated at 193 nm Chemistry Websites Summary: H-atom high-n Rydberg...

339

Resummed thermodynamic perturbation theory for bond cooperativity in associating fluids  

SciTech Connect (OSTI)

We develop a resummed thermodynamic perturbation theory for bond cooperativity in associating fluids by extension of Wertheim's multi-density formalism. We specifically consider the case of an associating hard sphere with two association sites and both pairwise and triplet contributions to the energy, such that the first bond in an associated cluster receives an energy ??{sup (1)} and each subsequent bond in the cluster receives an energy ??{sup (2)}. To test the theory we perform new Monte Carlo simulations for potentials of this type. Theory and simulation are found to be in excellent agreement. We show that decreasing the energetic benefit of hydrogen bonding can actually result in a decrease in internal energy in the fluid. We also predict that when ?{sup (1)} = 0 and ?{sup (2)} is nonzero there is a transition temperature where the system transitions from a fluid of monomers to a mixture of monomers and very long chains.

Marshall, Bennett D., E-mail: bennettd1980@gmail.com; Chapman, Walter G. [Department of Chemical and Biomolecular Engineering, Rice University, 6100 S. Main, Houston, Texas 77005 (United States)] [Department of Chemical and Biomolecular Engineering, Rice University, 6100 S. Main, Houston, Texas 77005 (United States)

2013-12-07T23:59:59.000Z

340

FITCH RATES PORT OF MORROW (OR) TRANSMISSION FACILITIES REV BONDS...  

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

FITCH RATES PORT OF MORROW (OR) TRANSMISSION FACILITIES REV BONDS 'AA'; OUTLOOK STABLE Fitch Ratings-Austin-24 November 2014: Fitch Ratings assigns 'AA' ratings to the Port of...

Note: This page contains sample records for the topic "metal oxo bonds" 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

Low-Cost Financing with Clean Renewable Energy Bonds  

Broader source: Energy.gov [DOE]

Contains information from the TAP Webcast on June 24, 2009 on clean renewable energy bonds from Claire Kreycik on feed-in tariffs, an economic resource for developing renewable energy.

342

Application of Social Impact Bonds in Built Infrastructure Sustainability Projects  

E-Print Network [OSTI]

This study examines a first look at the implementation of Social Impact Bonds (SIB) for sustainability projects by comparing two cases. The cases are described using System Dynamic (SD) modeling to portray the feedback structures and characteristics...

White, Robert Joseph

2014-05-01T23:59:59.000Z

343

Foreign trade zones and bonded warehouses for luxury goods  

E-Print Network [OSTI]

We explore and compare the benefits of establishing and operating Foreign Trade Zones (FTZs) and Bonded Warehouses (BWs) for luxury goods in North America, using the case of the distribution network of Ralph Lauren Corporation ...

Petrova, Nadya (Nadya Naydenova)

2013-01-01T23:59:59.000Z

344

Low-Cost Direct Bonded Aluminum (DBA) Substrates  

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

Low-Cost Direct Bonded Aluminum (DBA) Substrates H. -T. Lin, A. A. Wereszczak, M. L. Santella, and G. Muralidharan Oak Ridge National Laboratory (ORNL) This presentation does not...

345

Mpemba paradox: Hydrogen bond memory and water-skin supersolidity  

E-Print Network [OSTI]

Numerical reproduction of measurements, experimental evidence for skin super-solidity and hydrogen-bond memory clarified that Mpemba paradox integrates the heat emission-conduction-dissipation dynamics in the source-path-drain cycle system.

Chang Q Sun

2015-01-05T23:59:59.000Z

346

Ultrafast structural fluctuations and rearrangements of water's hydrogen bonded network  

E-Print Network [OSTI]

Aqueous chemistry is strongly influenced by water's ability to form an extended network of hydrogen bonds. It is the fluctuations and rearrangements of this network that stabilize reaction products and drive the transport ...

Loparo, Joseph J. (Joseph John)

2007-01-01T23:59:59.000Z

347

Emission intensity in the visible and IR spectral ranges from Si-based structures formed by direct bonding with simultaneous doping with erbium (Er) and europium (Eu)  

SciTech Connect (OSTI)

The photo- and electroluminescence spectra of silicon-based structures formed by direct bonding with simultaneous doping with rare-earth metals are studied. It is shown that emission in the visible and IR spectral ranges can be obtained from n-Si:Er/p-Si and n-Si:Eu/p-Si structures fabricated by the method suggested in the study. The results obtained make this method promising for the fabrication of optoelectronic devices.

Mezdrogina, M. M., E-mail: margaret.m@mail.ioffe.ru; Kostina, L. S.; Beliakova, E. I.; Kuzmin, R. V. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)] [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

2013-09-15T23:59:59.000Z

348

Integrated optical MEMS using through-wafer vias and bump-bonding.  

SciTech Connect (OSTI)

This LDRD began as a three year program to integrate through-wafer vias, micro-mirrors and control electronics with high-voltage capability to yield a 64 by 64 array of individually controllable micro-mirrors on 125 or 250 micron pitch with piston, tip and tilt movement. The effort was a mix of R&D and application. Care was taken to create SUMMiT{trademark} (Sandia's ultraplanar, multilevel MEMS technology) compatible via and mirror processes, and the ultimate goal was to mate this MEMS fabrication product to a complementary metal-oxide semiconductor (CMOS) electronics substrate. Significant progress was made on the via and mirror fabrication and design, the attach process development as well as the electronics high voltage (30 volt) and control designs. After approximately 22 months, the program was ready to proceed with fabrication and integration of the electronics, final mirror array, and through wafer vias to create a high resolution OMEMS array with individual mirror electronic control. At this point, however, mission alignment and budget constraints reduced the last year program funding and redirected the program to help support the through-silicon via work in the Hyper-Temporal Sensors (HTS) Grand Challenge (GC) LDRD. Several months of investigation and discussion with the HTS team resulted in a revised plan for the remaining 10 months of the program. We planned to build a capability in finer-pitched via fabrication on thinned substrates along with metallization schemes and bonding techniques for very large arrays of high density interconnects (up to 2000 x 2000 vias). Through this program, Sandia was able to build capability in several different conductive through wafer via processes using internal and external resources, MEMS mirror design and fabrication, various bonding techniques for arrayed substrates, and arrayed electronics control design with high voltage capability.

McCormick, Frederick Bossert; Frederick, Scott K.

2008-01-01T23:59:59.000Z

349

Bond Distortions in Armchair Type Single Wall Carbon Nanotubes  

E-Print Network [OSTI]

The energy band gap structure and stability of (3,3) and (10,10) nanotubes have been comparatively investigated in the frameworks of the traditional form of the Su-Schrieffer-Heeger (SSH) model and a toy model including the contributions of bonds of different types to the SSH Hamiltonian differently. Both models give the same energy band gap structure but bond length distortions in different characters for the nanotubes.

N. Sunel; E. Rizaoglu; K. Harigaya; O. Ozsoy

2005-03-03T23:59:59.000Z

350

Microbial cleavage of organic C-S bonds  

DOE Patents [OSTI]

A microbial process is described for selective cleavage of organic C-S bonds which may be used for reducing the sulfur content of sulfur-containing organic carbonaceous materials. Microorganisms of Rhodococcus rhodochrous and Bacillus sphaericus have been found which have the ability of selective cleavage of organic C-S bonds. Particularly preferred microorganisms are Rhodococcus rhodochrous strain ATCC 53968 and Bacillus sphaericus strain ATCC 53969 and their derivatives.

Kilbane, J.J. II.

1994-10-25T23:59:59.000Z

351

BN Bonded BN fiber article and method of manufacture  

DOE Patents [OSTI]

A boron nitride bonded boron nitride fiber article and the method for its manufacture which comprises forming a shaped article with a composition comprising a bonding compound selected from boron oxide and boric acid and a structural fiber selected from the group consisting of boron oxide, boron nitride and partially nitrided boron oxide fibers, heating the composition in an anhydrous gas to a temperature above the melting point of the compound and nitriding the resulting article in ammonia gas.

Hamilton, Robert S. (Youngstown, NY)

1981-08-18T23:59:59.000Z

352

Mercury stabilization in chemically bonded phosphate ceramics  

SciTech Connect (OSTI)

Mercury stabilization and solidification is a significant challenge for conventional stabilization technologies. This is because of the stringent regulatory limits on leaching of its stabilized products. In a conventional cement stabilization process, Hg is converted at high pH to its hydroxide, which is not a very insoluble compound; hence the preferred route for Hg sulfidation to convert it into insoluble cinnabar (HgS). Unfortunately, efficient formation of this compound is pH-dependent. At a high pH, one obtains a more soluble Hg sulfate, in a very low pH range, insufficient immobilization occurs because of the escape of hydrogen sulfide, while efficient formation of HgS occurs only in a moderately acidic region. Thus, the pH range of 4 to 8 is where stabilization with Chemically Bonded Phosphate Ceramics (CBPC) is carried out. This paper discusses the authors experience on bench-scale stabilization of various US Department of Energy (DOE) waste streams containing Hg in the CBPC process. This process was developed to treat DOE's mixed waste streams. It is a room-temperature-setting process based on an acid-base reaction between magnesium oxide and monopotassium phosphate solution that forms a dense ceramic within hours. For Hg stabilization, addition of a small amount (< 1 wt.%) of Na{sub 2}S or K{sub 2}S is sufficient in the binder composition. Here the Toxicity Characteristic Leaching Procedure (TCLP) results on CBPC waste forms of surrogate waste streams representing secondary Hg containing wastes such as combustion residues and Delphi DETOX{trademark} residues are presented. The results show that although the current limit on leaching of Hg is 0.2 mg/L, the results from the CBPC waste forms are at least one order lower than this stringent limit. Encouraged by these results on surrogate wastes, they treated actual low-level Hg-containing mixed waste from their facility at Idaho. TCLP results on this waste are presented here. The efficient stabilization in all these cases is attributed to chemical immobilization as both a sulfide (cinnabar) and a phosphate, followed by its physical encapsulation in a dense matrix of the ceramic.

Wagh, A. S.; Singh, D.; Jeong, S. Y.

2000-04-04T23:59:59.000Z

353

Bonded Bracket Assmebly for Frameless Solar Panels  

SciTech Connect (OSTI)

In February 2011 the US Department of Energy announced their new Sunshot Initiative. The Sunshot goal is to reduce the total cost of solar energy systems by about 75 percent before the end of the decade. The DOE estimated that a total installed cost of $1 per watt for photovoltaic systems would be equivalent to 6���¢/kilowatt hour (kWh) for energy available from the grid. The DOE also estimated that to meet the $1 per watt goal, PV module costs would need to be reduced to $.50 per watt, balance of systems costs would need to be reduced to $.40 per watt, and power electronic costs would need to reach $.10 per watt. To address the BOS balance of systems cost component of the $1 per watt goal, the DOE announced a funding opportunity called (BOS-X) Extreme Balance of System Hardware Cost Reductions. The DOE identified eight areas within the total BOS costs: 1) installation labor, 2) installation materials, 3) installation overhead and profit, 4) tracker, 5) permitting and commissioning, 6) site preparation, 7) land acquisition, 8) sales tax. The BOS-X funding announcement requested applications in four specific topics: Topic 1: Transformational Building Integrated Photovoltaic (BIPV) Modules Topic 2: Roof and Ground Mount Innovations Topic 3: Transformational Photovoltaic System Designs Topic 4: Development of New Wind Load Codes for PV Systems The application submitted by ARaymond Tinnerman reflected the requirements listed in Topic #2, Roof and Ground Mount Innovations. The goal of topic #2 was to develop technologies that would result in the extreme reduction of material and labor costs associated with applications that require physical connections and attachments to roof and ground mount structures. The topics researched in this project included component cost reduction, labor reduction, weight reduction, wiring innovations, and alternative material utilization. The project objectives included: 1) The development of an innovative quick snap bracket assembly that would be bonded to frameless PV modules for commercial rooftop installations. 2) The development of a composite pultruded rail to replace traditional racking materials. 3) In partnership with a roofing company, pilot the certification of a commercial roof to be solar panel compliant, eliminating the need for structural analysis and government oversight resulting in significantly decreased permitting costs. 4) Reduce the sum of all cost impacts in topic #2 from a baseline total of $2.05/watt to $.34/watt.

Murray, Todd

2013-01-30T23:59:59.000Z

354

Studies of metal/carbon surface chemistry. June 1, 1985-August 31, 1985  

SciTech Connect (OSTI)

The purpose of this research is to identify stable surface species formed from molecular adsorption and reaction on metal/carbon surfaces. This research has practical application in improving the fundamental understanding of catalytic coal gasification. Well-defined model catalysts for carbon gasification will be studied by vapor depositing alkali and transition metal atoms on carbon surfaces. Vibrational spectroscopy using HREELS and photoelectron spectroscopy of these surfaces will be used to develop an atomic-level understanding of the chemical bonding, structure, and reactivity of the metal carbon surface and of the adsorbed molecular species. 1 fig.

Koel, B.E.

1985-09-30T23:59:59.000Z

355

Scaling Relationships for Adsorption Energies of C2 Hydrocarbons on Transition Metal Surfaces  

SciTech Connect (OSTI)

Using density functional theory calculations we show that the adsorption energies for C{sub 2}H{sub x}-type adsorbates on transition metal surfaces scale with each other according to a simple bond order conservation model. This observation generalizes some recently recognized adsorption energy scaling laws for AH{sub x}-type adsorbates to unsaturated hydrocarbons and establishes a coherent simplified description of saturated as well as unsaturated hydrocarbons adsorbed on transition metal surfaces. A number of potential applications are discussed. We apply the model to the dehydrogenation of ethane over pure transition metal catalysts. Comparison with the corresponding full density functional theory calculations shows excellent agreement.

Jones, G

2011-08-18T23:59:59.000Z

356

ROLE OF C AND P SITES ON THE CHEMICAL ACTIVITY OF METAL CARBIDE AND PHOSPHIDES: FROM CLUSTERS TO SINGLE-CRYSTAL SURFACES  

SciTech Connect (OSTI)

Transition metal carbides and phosphides have shown tremendous potential as highly active catalysts. At a microscopic level, it is not well understood how these new catalysts work. Their high activity is usually attributed to ligand or/and ensemble effects. Here, we review recent studies that examine the chemical activity of metal carbide and phosphides as a function of size, from clusters to extended surfaces, and metal/carbon or metal/phosphorous ratio. These studies reveal that the C and P sites in these compounds cannot be considered as simple spectators. They moderate the reactivity of the metal centers and provide bonding sites for adsorbates.

RODRIGUEZ,J.A.; VINES, F.; LIU, P.; ILLAS, F.

2007-07-01T23:59:59.000Z

357

Metal atomization spray nozzle  

DOE Patents [OSTI]

A spray nozzle for a magnetohydrodynamic atomization apparatus has a feed passage for molten metal and a pair of spray electrodes mounted in the feed passage. The electrodes, diverging surfaces which define a nozzle throat and diverge at an acute angle from the throat. Current passes through molten metal when fed through the throat which creates the Lorentz force necessary to provide atomization of the molten metal. 6 figures.

Huxford, T.J.

1993-11-16T23:59:59.000Z

358

Deformation Behavior of Nanoporous Metals  

SciTech Connect (OSTI)

Nanoporous open-cell foams are a rapidly growing class of high-porosity materials (porosity {ge} 70%). The research in this field is driven by the desire to create functional materials with unique physical, chemical and mechanical properties where the material properties emerge from both morphology and the material itself. An example is the development of nanoporous metallic materials for photonic and plasmonic applications which has recently attracted much interest. The general strategy is to take advantage of various size effects to introduce novel properties. These size effects arise from confinement of the material by pores and ligaments, and can range from electromagnetic resonances to length scale effects in plasticity. In this chapter we will focus on the mechanical properties of low density nanoporous metals and how these properties are affected by length scale effects and bonding characteristics. A thorough understanding of the mechanical behavior will open the door to further improve and fine-tune the mechanical properties of these sometimes very delicate materials, and thus will be crucial for integrating nanoporous metals into products. Cellular solids with pore sizes above 1 micron have been the subject of intense research for many years, and various scaling relations describing the mechanical properties have been developed.[4] In general, it has been found that the most important parameter in controlling their mechanical properties is the relative density, that is, the density of the foam divided by that of solid from which the foam is made. Other factors include the mechanical properties of the solid material and the foam morphology such as ligament shape and connectivity. The characteristic internal length scale of the structure as determined by pores and ligaments, on the other hand, usually has only little effect on the mechanical properties. This changes at the submicron length scale where the surface-to-volume ratio becomes large and the effect of free surfaces can no longer be neglected. As the material becomes more and more constraint by the presence of free surfaces, length scale effects on plasticity become more and more important and bulk properties can no longer be used to describe the material properties. Even the elastic properties may be affected as the reduced coordination of surface atoms and the concomitant redistribution of electrons may soften or stiffen the material. If, and to what extend, such length scale effects control the mechanical behavior of nanoporous materials depends strongly on the material and the characteristic length scale associated with its plastic deformation. For example, ductile materials such as metals which deform via dislocation-mediated processes can be expected to exhibit pronounced length scale effects in the sub-micron regime where free surfaces start to constrain efficient dislocation multiplication. In this chapter we will limit our discussion to our own area of expertise which is the mechanical behavior of nanoporous open-cell gold foams as a typical example of nanoporous metal foams. Throughout this chapter we will review our current understanding of the mechanical properties of nanoporous open-cell foams including both experimental and theoretical studies.

Biener, J; Hodge, A M; Hamza, A V

2007-11-28T23:59:59.000Z

359

Silicon metal-semiconductor-metal photodetector  

DOE Patents [OSTI]

Silicon MSM photodiodes sensitive to radiation in the visible to near infrared spectral range are produced by altering the absorption characteristics of crystalline Si by ion implantation. The implantation produces a defected region below the surface of the silicon with the highest concentration of defects at its base which acts to reduce the contribution of charge carriers formed below the defected layer. The charge carriers generated by the radiation in the upper regions of the defected layer are very quickly collected between biased Schottky barrier electrodes which form a metal-semiconductor-metal structure for the photodiode.

Brueck, Steven R. J. (Albuquerque, NM); Myers, David R. (Albuquerque, NM); Sharma, Ashwani K. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

360

Silicon metal-semiconductor-metal photodetector  

DOE Patents [OSTI]

Silicon MSM photodiodes sensitive to radiation in the visible to near infrared spectral range are produced by altering the absorption characteristics of crystalline Si by ion implantation. The implantation produces a defected region below the surface of the silicon with the highest concentration of defects at its base which acts to reduce the contribution of charge carriers formed below the defected layer. The charge carriers generated by the radiation in the upper regions of the defected layer are very quickly collected between biased Schottky barrier electrodes which form a metal-semiconductor-metal structure for the photodiode.

Brueck, Steven R. J. (Albuquerque, NM); Myers, David R. (Albuquerque, NM); Sharma, Ashwani K. (Albuquerque, NM)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

PROPOSED MODIFICATION TO THE ACI 318-02 CODE EQUATION ON BOND STRENGTH FOR MMFX STEEL  

E-Print Network [OSTI]

ST-263-1 PROPOSED MODIFICATION TO THE ACI 318-02 CODE EQUATION ON BOND STRENGTH FOR MMFX STEEL R the bond characteristics of Micro-composite Multi-structural Formable reinforcing steel rebars of the current equation of the ACI 318-02 Code on bond to predict the bond capacity of the MMFX steel rebars

362

Mechanical Study of Copper Bonded at Low Temperature using Spark Plasma Sintering Process  

E-Print Network [OSTI]

is approximatively 6.47 MPa [7]. J. W. Elmer & al [8] have presented a diffusion bonding of high purity copper using a conventional furnace. A series of diffusion bonds was done to determine the relationship between bond strengthMechanical Study of Copper Bonded at Low Temperature using Spark Plasma Sintering Process Bassem

Paris-Sud XI, Université de

363

Highly Efficient Vertical Outgassing Channels for Robust, Void-Free, Low-Temperature Direct Wafer Bonding  

E-Print Network [OSTI]

molecules diffusion at bonding interface to VOCs. Conventional anneal time of 12-18 hours required to bond Bonding Di Liang1 , Erik A. Lucero2 , John E. Bowers1 1 Department of Electrical and Computer Engineering wafer bonding is favored for dissimilar materials integration, particularly in III-V compound

Bowers, John

364

The C OH O hydrogen bond: A determinant of stability and specificity  

E-Print Network [OSTI]

recovered by hydro- gen bond formation, so hydrogen bonds provide a small or even unfavorable net energy hydro- gen bond has been unclear and its interaction energy has been believed to be small. Recently that apparent carbon hydro- gen bonds cluster frequently at glycine-, serine-, and threonine-rich packing

Senes, Alessandro

365

Thermal Performance and Reliability of Bonded Interfaces for Power Electronics Packaging Applications (Presentation)  

SciTech Connect (OSTI)

This presentation discusses the thermal performance and reliability of bonded interfaces for power electronics packaging applications.

Devoto, D.

2013-07-01T23:59:59.000Z

366

A new hydrogen-bonding potential for the design of proteinRNA interactions predicts specific  

E-Print Network [OSTI]

A new hydrogen-bonding potential for the design of protein­RNA interactions predicts specific-dependent hydrogen-bonding potential based on the statistical analysis of hydrogen-bonding geometries of hydrogen-bonding atom pairs at protein­ nucleic acid interfaces. A scoring function based on the hydrogen

Baker, David

367

Hydrogen Bond Migration between Molecular Sites Observed with Ultrafast 2D IR Chemical Exchange Spectroscopy  

E-Print Network [OSTI]

Hydrogen Bond Migration between Molecular Sites Observed with Ultrafast 2D IR Chemical ExchangeVed: January 12, 2010 Hydrogen-bonded complexes between phenol and phenylacetylene are studied using ultrafast hydrogen bonding acceptor sites (phenyl or acetylene) that compete for hydrogen bond donors in solution

Fayer, Michael D.

368

PHYTOEXTRACTION OF HEAVY METALS  

E-Print Network [OSTI]

) Type of phytoremediation Cost effective form of environmental remediation (Glass 1999) Chelating Agents: desorb heavy metals from soil matrix and form water-soluble metal complexes (Shen et al -using hyperaccumulator plant biomass to produce a bio-ore for commercial use -Li et al. look at using Ni

Blouin-Demers, Gabriel

369

Effect of quantum nuclear motion on hydrogen bonding  

SciTech Connect (OSTI)

This work considers how the properties of hydrogen bonded complexes, X–H?Y, are modified by the quantum motion of the shared proton. Using a simple two-diabatic state model Hamiltonian, the analysis of the symmetric case, where the donor (X) and acceptor (Y) have the same proton affinity, is carried out. For quantitative comparisons, a parametrization specific to the O–H?O complexes is used. The vibrational energy levels of the one-dimensional ground state adiabatic potential of the model are used to make quantitative comparisons with a vast body of condensed phase data, spanning a donor-acceptor separation (R) range of about 2.4 ? 3.0 Å, i.e., from strong to weak hydrogen bonds. The position of the proton (which determines the X–H bond length) and its longitudinal vibrational frequency, along with the isotope effects in both are described quantitatively. An analysis of the secondary geometric isotope effect, using a simple extension of the two-state model, yields an improved agreement of the predicted variation with R of frequency isotope effects. The role of bending modes is also considered: their quantum effects compete with those of the stretching mode for weak to moderate H-bond strengths. In spite of the economy in the parametrization of the model used, it offers key insights into the defining features of H-bonds, and semi-quantitatively captures several trends.

McKenzie, Ross H., E-mail: r.mckenzie@uq.edu.au; Bekker, Christiaan [School of Mathematics and Physics, University of Queensland, Brisbane 4072 (Australia)] [School of Mathematics and Physics, University of Queensland, Brisbane 4072 (Australia); Athokpam, Bijyalaxmi; Ramesh, Sai G. [Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012 (India)] [Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012 (India)

2014-05-07T23:59:59.000Z

370

Process for the fabrication of aluminum metallized pyrolytic graphite sputtering targets  

DOE Patents [OSTI]

An improved method is disclosed for fabricating pyrolytic graphite sputtering targets with superior heat transfer ability, longer life, and maximum energy transmission. Anisotropic pyrolytic graphite is contoured and/or segmented to match the erosion profile of the sputter target and then oriented such that the graphite`s high thermal conductivity planes are in maximum contact with a thermally conductive metal backing. The graphite contact surface is metallized, using high rate physical vapor deposition (HRPVD), with an aluminum coating and the thermally conductive metal backing is joined to the metallized graphite target by one of four low-temperature bonding methods; liquid-metal casting, powder metallurgy compaction, eutectic brazing, and laser welding. 11 figs.

Makowiecki, D.M.; Ramsey, P.B.; Juntz, R.S.

1995-07-04T23:59:59.000Z

371

Production of magnesium metal  

DOE Patents [OSTI]

A process of producing magnesium metal includes providing magnesium carbonate, and reacting the magnesium carbonate to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The carbon dioxide is used as a reactant in a second process. In another embodiment of the process, a magnesium silicate is reacted with a caustic material to produce magnesium hydroxide. The magnesium hydroxide is reacted with a source of carbon dioxide to produce magnesium carbonate. The magnesium carbonate is reacted to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The invention further relates to a process for production of magnesium metal or a magnesium compound where an external source of carbon dioxide is not used in any of the reactions of the process. The invention also relates to the magnesium metal produced by the processes described herein.

Blencoe, James G. (Harriman, TN) [Harriman, TN; Anovitz, Lawrence M. (Knoxville, TN) [Knoxville, TN; Palmer, Donald A. (Oliver Springs, TN) [Oliver Springs, TN; Beard, James S. (Martinsville, VA) [Martinsville, VA

2010-02-23T23:59:59.000Z

372

Chemical strategies for die/wafer submicron alignment and bonding.  

SciTech Connect (OSTI)

This late-start LDRD explores chemical strategies that will enable sub-micron alignment accuracy of dies and wafers by exploiting the interfacial energies of chemical ligands. We have micropatterned commensurate features, such as 2-d arrays of micron-sized gold lines on the die to be bonded. Each gold line is functionalized with alkanethiol ligands before the die are brought into contact. The ligand interfacial energy is minimized when the lines on the die are brought into registration, due to favorable interactions between the complementary ligand tails. After registration is achieved, standard bonding techniques are used to create precision permanent bonds. We have computed the alignment forces and torque between two surfaces patterned with arrays of lines or square pads to illustrate how best to maximize the tendency to align. We also discuss complex, aperiodic patterns such as rectilinear pad assemblies, concentric circles, and spirals that point the way towards extremely precise alignment.

Martin, James Ellis; Baca, Alicia I.; Chu, Dahwey; Rohwer, Lauren Elizabeth Shea

2010-09-01T23:59:59.000Z

373

Students' Interdisciplinary Reasoning about "High-Energy Bonds" and ATP  

E-Print Network [OSTI]

Students' sometimes contradictory ideas about ATP (adenosine triphosphate) and the nature of chemical bonds have been studied in the biology and chemistry education literatures, but these topics are rarely part of the introductory physics curriculum. We present qualitative data from an introductory physics course for undergraduate biology majors that seeks to build greater interdisciplinary coherence and therefore includes these topics. In these data, students grapple with the apparent contradiction between the energy released when the phosphate bond in ATP is broken and the idea that an energy input is required to break a bond. We see that students' perceptions of how each scientific discipline bounds the system of interest can influence how they justify their reasoning about a topic that crosses disciplines. This has consequences for a vision of interdisciplinary education that respects disciplinary perspectives while bringing them into interaction in ways that demonstrate consistency amongst the perspectiv...

Dreyfus, Benjamin W; Sawtelle, Vashti; Svoboda, Julia; Turpen, Chandra; Redish, Edward F

2012-01-01T23:59:59.000Z

374

Intramolecular Hydrogen Bonding in Disubstituted Ethanes. A Comparison of NH,,,O-and OH,,,O-Hydrogen Bonding through Conformational Analysis of 4-Amino-4-oxobutanoate  

E-Print Network [OSTI]

Intramolecular Hydrogen Bonding in Disubstituted Ethanes. A Comparison of NH,,,O- and OH,,,O- Hydrogen Bonding through Conformational Analysis of 4-Amino-4-oxobutanoate (succinamate) and Monohydrogen 1 of amide NH,,,O- and carboxyl OH,,,O- hydrogen bonds were investigated via conformational analysis

Goddard III, William A.

375

High- and low-temperature bonding techniques for microstructures  

SciTech Connect (OSTI)

The ability to bond together two or more silicon wafers greatly expands the variety and complexity of silicon microstructures that can be designed and fabricated. At LLNL, microstructures have been used for many years as hardware in scientific experiments. The activity has recently been expanded into other areas to include microinstruments for biomedical applications and for chemical analysis. Both high temperature (1100{degrees}C) bonding techniques have been used, depending on the application. This paper discusses these applications with emphasis on the most extensive which is the fabrication of microchannel coolers for diode arrays.

Ciarlo, D.R.

1993-06-22T23:59:59.000Z

376

Liquid metal electric pump  

DOE Patents [OSTI]

An electrical pump for pumping liquid metals to high pressures in high temperature environments without the use of magnets or moving mechanical parts. The pump employs a non-porous solid electrolyte membrane, typically ceramic, specific to the liquid metal to be pumped. A DC voltage is applied across the thickness of the membrane causing ions to form and enter the membrane on the electrically positive surface, with the ions being neutralized on the opposite surface. This action provides pumping of the liquid metal from one side of the non-porous solid electrolyte membrane to the other.

Abbin, Joseph P. (Albuquerque, NM); Andraka, Charles E. (Albuquerque, NM); Lukens, Laurance L. (Albuquerque, NM); Moreno, James B. (Albuquerque, NM)

1992-01-01T23:59:59.000Z

377

Actinide metal processing  

DOE Patents [OSTI]

A process of converting an actinide metal such as thorium, uranium, or plnium to an actinide oxide material by admixing the actinide metal in an aqueous medium with a hypochlorite as an oxidizing agent for sufficient time to form the actinide oxide material and recovering the actinide oxide material is provided together with a low temperature process of preparing an actinide oxide nitrate such as uranyl nitrte. Additionally, a composition of matter comprising the reaction product of uranium metal and sodium hypochlorite is provided, the reaction product being an essentially insoluble uranium oxide material suitable for disposal or long term storage.

Sauer, Nancy N. (Los Alamos, NM); Watkin, John G. (Los Alamos, NM)

1992-01-01T23:59:59.000Z

378

Actinide metal processing  

DOE Patents [OSTI]

A process for converting an actinide metal such as thorium, uranium, or plutonium to an actinide oxide material by admixing the actinide metal in an aqueous medium with a hypochlorite as an oxidizing agent for sufficient time to form the actinide oxide material and recovering the actinide oxide material is described together with a low temperature process for preparing an actinide oxide nitrate such as uranyl nitrate. Additionally, a composition of matter comprising the reaction product of uranium metal and sodium hypochlorite is provided, the reaction product being an essentially insoluble uranium oxide material suitable for disposal or long term storage.

Sauer, N.N.; Watkin, J.G.

1992-03-24T23:59:59.000Z

379

Transition Metal Switchable Mirror  

ScienceCinema (OSTI)

The switchable-mirrors technology was developed by Tom Richardson and Jonathan Slack of Berkeley Lab's Environmental Energy Technologies Division. By using transition metals rather than the rare earth metals used in the first metal-hydride switchable mirrors, Richardson and Slack were able to lower the cost and simplify the manufacturing process. Energy performance is improved as well, because the new windows can reflect or transmit both visible and infrared light. Besides windows for offices and homes, possible applications include automobile sunroofs, signs and displays, aircraft windows, and spacecraft. More information at: http://windows.lbl.gov/materials/chromogenics/default.htm

None

2013-05-29T23:59:59.000Z

380

Transition Metal Switchable Mirror  

ScienceCinema (OSTI)

The switchable-mirrors technology was developed by Tom Richardson and Jonathan Slack of Berkeley Lab's Environmental Energy Technologies Division. By using transition metals rather than the rare earth metals used in the first metal-hydride switchable mirrors, Richardson and Slack were able to lower the cost and simplify the manufacturing process. Energy performance is improved as well, because the new windows can reflect or transmit both visible and infrared light. Besides windows for offices and homes, possible applications include automobile sunroofs, signs and displays, aircraft windows, and spacecraft.

None

2010-01-08T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Liquid metal electric pump  

DOE Patents [OSTI]

An electrical pump for pumping liquid metals to high pressures in high temperature environments without the use of magnets or moving mechanical parts. The pump employs a non-porous solid electrolyte membrane, typically ceramic, specific to the liquid metal to be pumped. A DC voltage is applied across the thickness of the membrane causing ions to form and enter the membrane on the electrically positive surface, with the ions being neutralized on the opposite surface. This action provides pumping of the liquid metal from one side of the non-porous solid electrolyte membrane to the other. 3 figs.

Abbin, J.P.; Andraka, C.E.; Lukens, L.L.; Moreno, J.B.

1992-01-14T23:59:59.000Z

382

CHEMISTRY OF SO{sub 2} ON MODEL METAL AND OXIDE CATALYSTS: PHOTOEMISSION AND XANES STUDIES  

SciTech Connect (OSTI)

High-resolution synchrotron based photoemission and x-ray absorption spectroscopy have been used to study the interaction of SO{sub 2} with a series of metals and oxides. The chemistry of SO{sub 2} on metal surfaces is rich. At low coverages, the molecule fully decomposes into atomic S and O. At large coverages, the formation of SO{sub 3} and SO{sub 4} takes place. The following sequence was found for the reactivity of the metals towards SO{sub 2}: Pt {approx} Rh < Ru < Mo << Zn, Sn, Cs. Alloying can be useful for reducing the chemical affinity of a metal for SO{sub 2} and controlling S poisoning. Pd atoms bonded to Rh and Pt atoms bonded to Sn interact weakly with SO{sub 2}. In general, SO{sub 2} mainly reacts with the O centers of metal oxides. SO{sub 4} is formed on CeO{sub 2} and SO{sub 3} on ZnO. On these systems there is no decomposition of SO{sub 2}. Dissociation of the molecule is observed after introducing a large amount of Ce{sup 3+} sites in ceria, or after depositing Cu or alkali metals on the oxide surfaces. These promote the catalytic activity of the oxides during the destruction of SO{sub 2}.

RODRIGUEZ,J.A.; JIRSAK,T.; CHATURVEDI,S.; HRBEK,J.; FREITAG,A.; LARESE,J.Z.

2000-07-09T23:59:59.000Z

383

Portraits of some representatives of metal boride carbide and boride silicide compounds  

SciTech Connect (OSTI)

Different ternary alkaline-earth and rare-earth metal boron carbide and silicide compounds are examined using the solid-state language of Zintl-Klemm concept, band structures, and density of states, in order to show that the topology of the non-metal sub-lattice is highly dependent on the electron count. It is also shown that the chemistry of rare-earth metal-boron-silicon does not parallel that of rare-earth metal-boron-carbon. B-C bonds are easily formed in the latter, leading to a large variety of different structural arrangements, whereas Si-B bonds are hardly observed in the former, except in insertion compounds. - Graphical abstract: Some ternary alkaline-earth and rare-earth metal boron carbide and silicide compounds are examined using the solid-state language of Zintl-Klemm concept, band structures, and density of states, in order to show that the topology of the non-metal sub-lattice is highly dependent on the electron count.

Ben Yahia, Mouna [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France); Roger, Jerome [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France); Rocquefelte, Xavier [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France); Gautier, Regis [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France); Bauer, Joseph [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France); Guerin, Roland [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France); Saillard, Jean-Yves [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France); Halet, Jean-Francois [Laboratoire de Chimie du Solide et Inorganique Moleculaire, UMR 6511 CNRS-Universite de Rennes 1-ENSC Rennes, Institut de Chimie de Rennes, F-35042 Rennes (France)]. E-mail: halet@univ-rennes1.fr

2006-09-15T23:59:59.000Z

384

First-principles study of the stability and electronic structure of metal hydrides H. Smithson,1,2  

E-Print Network [OSTI]

energy is the chemical bonding between the hydrogen and metal in which it is inserted. This is the only number s : 61.50.Ah, 61.66.Dk I. INTRODUCTION The absorption of hydrogen in materials is of wide to as hydro- gen embrittlement. The mechanism of such embrittlement is believed to be different depending

Ceder, Gerbrand

385

Resummed thermodynamic perturbation theory for bond cooperativity in associating fluids with small bond angles: Effects of steric hindrance and ring formation  

E-Print Network [OSTI]

In this paper we develop a thermodynamic perturbation theory for two site associating fluids which exhibit bond cooperativity. We include both steric hindrance and ring formation such that the equation of state is bond angle dependent. Here the bond angle is the angle separating the centers of the two association sites. As a test, new Monte Carlo simulations are performed, and the theory is found to accurately predict the internal energy as well as the distribution of associated clusters as a function of bond angle and bond cooperativity.

B. D. Marshall; Amin Haghmoradi; W. G. Chapman

2014-04-03T23:59:59.000Z

386

Methods of making metallic glass foil laminate composites  

DOE Patents [OSTI]

A process for the fabrication of a rapidly solidified foil laminate composite. An amorphous metallic glass foil is flux treated and coated with solder. Before solidification of the solder the foil is collected on a take-up spool which forms the composite into a solid annular configuration. The resulting composite exhibits high strength, resiliency and favorable magnetic and electrical properties associated with amorphous materials. The composite also exhibits bonding strength between the foil layers which significantly exceeds the bulk strength of the solder alone. 6 figs.

Vianco, P.T.; Fisher, R.W.; Hosking, F.M.; Zanner, F.J.

1996-08-20T23:59:59.000Z

387

Methods of making metallic glass foil laminate composites  

DOE Patents [OSTI]

A process for the fabrication of a rapidly solidified foil laminate composite. An amorphous metallic glass foil is flux treated and coated with solder. Before solidification of the solder the foil is collected on a take-up spool which forms the composite into a solid annular configuration. The resulting composite exhibits high strength, resiliency and favorable magnetic and electrical properties associated with amorphous materials. The composite also exhibits bonding strength between the foil layers which significantly exceeds the bulk strength of the solder alone.

Vianco, Paul T. (Albuquerque, NM); Fisher, Robert W. (Albuquerque, NM); Hosking, Floyd M. (Albuquerque, NM); Zanner, Frank J. (Sandia Park, NM)

1996-01-01T23:59:59.000Z

388

Functional Metal Phosphonates  

E-Print Network [OSTI]

functional groups. In some cases, these ligands undergo reactions during the solvothermal syntheses which can impart new chemical reactivity. Another method used to introduce functionality was to partially or completely substitute metal atoms within...

Perry, Houston Phillipp

2012-02-14T23:59:59.000Z

389

Production of magnesium metal  

DOE Patents [OSTI]

A process of producing magnesium metal includes providing magnesium carbonate, and reacting the magnesium carbonate to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The carbon dioxide is used as a reactant in a second process. In another embodiment of the process, a magnesium silicate is reacted with a caustic material to produce magnesium hydroxide. The magnesium hydroxide is reacted with a source of carbon dioxide to produce magnesium carbonate. The magnesium carbonate is reacted to produce a magnesium-containing compound and carbon dioxide. The magnesium-containing compound is reacted to produce magnesium metal. The invention also relates to the magnesium metal produced by the processes described herein.

Blencoe, James G. (Harriman, TN); Anovitz, Lawrence M. (Knoxville, TN); Palmer, Donald A. (Oliver Springs, TN); Beard, James S. (Martinsville, VA)

2012-04-10T23:59:59.000Z

390

Lithium metal reduction of plutonium oxide to produce plutonium metal  

DOE Patents [OSTI]

A method is described for the chemical reduction of plutonium oxides to plutonium metal by the use of pure lithium metal. Lithium metal is used to reduce plutonium oxide to alpha plutonium metal (alpha-Pu). The lithium oxide by-product is reclaimed by sublimation and converted to the chloride salt, and after electrolysis, is removed as lithium metal. Zinc may be used as a solvent metal to improve thermodynamics of the reduction reaction at lower temperatures. Lithium metal reduction enables plutonium oxide reduction without the production of huge quantities of CaO--CaCl.sub.2 residues normally produced in conventional direct oxide reduction processes.

Coops, Melvin S. (Livermore, CA)

1992-01-01T23:59:59.000Z

391

Method of preparation of bonded polyimide fuel cell package  

DOE Patents [OSTI]

Described herein are processes for fabricating microfluidic fuel cell systems with embedded components in which micron-scale features are formed by bonding layers of DuPont Kapton.TM. polyimide laminate. A microfluidic fuel cell system fabricated using this process is also described.

Morse, Jeffrey D. (Martinez, CA); Jankowski, Alan (Livermore, CA); Graff, Robert T. (Modesto, CA); Bettencourt, Kerry (Dublin, CA)

2011-04-26T23:59:59.000Z

392

Vibrational Signature of Water Molecules in Asymmetric Hydrogen Bonding Environments  

E-Print Network [OSTI]

Vibrational Signature of Water Molecules in Asymmetric Hydrogen Bonding Environments Chao Zhang contributions of each of the two hydrogen atoms to the vibrational modes 1 and 3 of water molecules the early works on the molecular structure of water, it has been accepted that a water molecule

Guidoni, Leonardo

393

Bond Strength of ASTM A 1035 Grade 100 Reinforcing Steel  

E-Print Network [OSTI]

The bond strength of ASTM A 1035 Grade 100 reinforcing steel is evaluated relative to the values predicted using the development expressions in ACI 318-05 and ACI 408R-03. Sixty-nine beam-splice specimens were tested at the University of Kansas...

Briggs, Michael

2008-04-24T23:59:59.000Z

394

A Single Disulfide Bond Differentiates Aggregation Pathways of 2-Microglobulin  

E-Print Network [OSTI]

simulation; aggregation; domain swapping*Corresponding author Introduction Amyloid fibrils are insolubleA Single Disulfide Bond Differentiates Aggregation Pathways of ß2-Microglobulin Yiwen Chen1 at Chapel Hill Chapel Hill, NC 27599, USA Deposition of wild-type ß2-microglobulin (ß2m) into amyloid

Dokholyan, Nikolay V.

395

WHAT'S GRAPHENE? Mono or few layers of sp2 bonded  

E-Print Network [OSTI]

WHAT'S GRAPHENE? · Mono or few layers of sp2 bonded carbon atoms in a honeycomb lattice 105cm2/Vs at RT. 1 Due to its unique transport properties, graphene is suitable for implementation sampling (EOS) timeresolved spectroscopy to optically pump and THz probe exfoliated graphene ribbons (GR

Mellor-Crummey, John

396

Diffusion limited cluster aggregation with irreversible flexible bonds  

E-Print Network [OSTI]

Irreversible diffusion limited cluster aggregation (DLCA) of hard spheres was simulated using Brownian cluster dynamics. Bound spheres were allowed to move freely within a specified range, but no bond breaking was allowed. The structure and size distribution of the clusters was investigated before gelation. The pair correlation function and the static structure factor of the gels were determined as a function of the volume fraction and time. Bond flexibility led to local densification of the clusters and the gels, with a certain degree of order. At low volume fractions densification of the clusters occurred during their growth, but at higher volume fractions it occurred mainly after gelation. At very low volume fractions, the large scale structure (fractal dimension), size distribution and growth kinetics of the clusters was found to be close to that known for DLCA with rigid bonds. Restructuring of the gels continued for long times, indicating that aging processes in systems with strong attraction do not necessarily involve bond breaking. The mean square displacement of particles in the gels was determined. It is shown to be highly heterogeneous and to increase with decreasing volume fraction.

Sujin Babu; Jean-Christophe Gimel; Taco Nicolai

2008-01-29T23:59:59.000Z

397

Advance Refundings of Municipal Bonds Columbia Business School  

E-Print Network [OSTI]

Advance Refundings of Municipal Bonds Andrew Ang Columbia Business School and NBER Richard C. Green of Vineer Bhansali, Trevor Harris, Tal Heppenstall, Andrew Kalotay, Kemp Lewis, Paul Luhmann, Matt of colleagues, especially Jennifer Carpenter, Dan Li, Norman Sch¨urhoff, and Chester Spatt, along with seminar

Sadeh, Norman M.

398

Bonded labour The Dalits of Nepal are a marginalised  

E-Print Network [OSTI]

Bonded labour The Dalits of Nepal are a marginalised group of people who have suffered systematic that, while illegal, is still widespread in remote rural areas of Nepal. To meet their basic needs in their neighbour- hood. Referred to in Nepal as Haliya/ Haruwa and Charuwa, they have to plough the landlords' land

Richner, Heinz

399

Water inertial reorientation: Hydrogen bond strength and the angular potential  

E-Print Network [OSTI]

Water inertial reorientation: Hydrogen bond strength and the angular potential David E. Moilanen) The short-time orientational relaxation of water is studied by ultrafast infrared pump-probe spectroscopy with recent molecular dynamics simulations employing the simple point charge-extended water model at room

Fayer, Michael D.

400

Resummed thermodynamic perturbation theory for bond cooperativity in associating fluids  

E-Print Network [OSTI]

We develop a resummed thermodynamic perturbation theory for bond cooperativity in associating fluids by extension of Wertheim's multi - density formalism. We specifically consider the case of an associating hard sphere with two association sites and both pairwise and triplet contributions to the energy. To test the theory we perform new monte carlo simulations. Theory and simulation are found to be in excellent agreement.

B. D. Marshall; W. G. Chapman

2013-09-18T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

alteredintramolecular hydrogen-bonding pattern: Topics by E-print...  

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

alteredintramolecular hydrogen-bonding pattern First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1...

402

Hydrogen Bonding Increases Packing Density in the Protein Interior  

E-Print Network [OSTI]

Hydrogen Bonding Increases Packing Density in the Protein Interior David Schell,1,2 Jerry Tsai,1 J System Health Science Center, College Station, Texas 77843-1114 ABSTRACT The contribution of hydrogen to the stability, but experimental studies show that bury- ing polar groups, especially those that are hydrogen

403

Concept generation of dynamic systems using bond graphs  

E-Print Network [OSTI]

REPRESENTATIONS OF IMMITTANCES . . . Immittance synthesis in design Conventional immit tance synthesis techniques by Foster and Cauer Immittance synthesis with bond graphs . . . . . . . . . . . . . Example - Synthesis of two frequency absorber... . . . . . . . . . 35 . 35 . 38 . . . . . . 40 . . . . . . 49 TABLE OF CONTENTS (Continued) CHAPTER Page V PHYSICAL REPRESENTATIONS OF TRANSFER FUNCTIONS Transfer function synthesis in design . . . . . . . . . . . General procedure Conditions for passive...

Krishnan, S

1990-01-01T23:59:59.000Z

404

Comparing systemic risk in European government bonds and national indices  

E-Print Network [OSTI]

It has been shown, that the systemic risk contained in financial markets can be indicated by the change of cross-correlation between different indices and stocks. This change is tracked by using principle component analysis (PCA). We use this technique to investigate the systemic risk contained in European economy by comparing government long term bonds and indices.

Jurczyk, Jan; Morgenstern, Ingo

2015-01-01T23:59:59.000Z

405

Metallic glass composition  

DOE Patents [OSTI]

A metallic glass alloy that is either iron-based or nickel-based or based on a mixture of iron and nickel, containing lesser amounts of elements selected from the group boron, silicon carbon and phosphorous to which is added an amount of a ductility enhancing element selected from the group cerium, lanthanum, praseodymium and neodymium sufficient to increase ductility of the metallic glass upon annealing.

Kroeger, Donald M. (Knoxville, TN); Koch, Carl C. (Raleigh, NC)

1986-01-01T23:59:59.000Z

406

Molten metal reactors  

DOE Patents [OSTI]

A molten metal reactor for converting a carbon material and steam into a gas comprising hydrogen, carbon monoxide, and carbon dioxide is disclosed. The reactor includes an interior crucible having a portion contained within an exterior crucible. The interior crucible includes an inlet and an outlet; the outlet leads to the exterior crucible and may comprise a diffuser. The exterior crucible may contain a molten alkaline metal compound. Contained between the exterior crucible and the interior crucible is at least one baffle.

Bingham, Dennis N; Klingler, Kerry M; Turner, Terry D; Wilding, Bruce M

2013-11-05T23:59:59.000Z

407

Thermally tolerant multilayer metal membrane  

DOE Patents [OSTI]

A composite metal membrane including a first metal layer of a Group IVB or Group VB metal sandwiched between two layers of a Group VIIIB metal selected from the group consisting of palladium, platinum, nickel, rhodium, iridium, cobalt, and alloys thereof, and a non-continuous layer of a metal chalcogenide upon one layer of the Group VIIIB metal is disclosed together with a process for the recovery of hydrogen from a gaseous mixture using such a composite membrane and a process for forming such a composite metal membrane.

Dye, Robert C. (Los Alamos, NM); Snow, Ronny C. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

408

Time-Resolved XAFS Spectroscopic Studies of B-H and N-H Oxidative Addition to Transition Metal Catalysts Relevant to Hydrogen Storage  

SciTech Connect (OSTI)

Successful catalytic dehydrogenation of aminoborane, H3NBH3, prompted questions as to the potential role of N-H oxidative addition in the mechanisms of these processes. N-H oxidative addition reactions are rare, and in all cases appear to involve initial dative bonding to the metal by the amine lone pairs followed by transfer of a proton to the basic metal. Aminoborane and its trimethylborane derivative block this mechanism and, in principle, should permit authentic N-H oxidative attrition to occur. Extensive experimental work failed to confirm this hypothesis. In all cases either B-H complexation or oxidative addition of solvent C-H bonds dominate the chemistry.

Bitterwolf, Thomas E. [University of Idaho

2014-12-09T23:59:59.000Z

409

Development of bonded composite doublers for the repair of oil recovery equipment.  

SciTech Connect (OSTI)

An unavoidable by-product of a metallic structure's use is the appearance of crack and corrosion flaws. Economic barriers to the replacement of these structures have created an aging infrastructure and placed even greater demands on efficient and safe repair methods. In the past decade, an advanced composite repair technology has made great strides in commercial aviation use. Extensive testing and analysis, through joint programs between the Sandia Labs FAA Airworthiness Assurance Center and the aviation industry, have proven that composite materials can be used to repair damaged aluminum structure. Successful pilot programs have produced flight performance history to establish the durability of bonded composite patches as a permanent repair on commercial aircraft structures. With this foundation in place, this effort is adapting bonded composite repair technology to civil structures. The use of bonded composite doublers has the potential to correct the difficulties associated with current repair techniques and the ability to be applied where there are no rehabilitation options. It promises to be cost-effective with minimal disruption to the users of the structure. This report concludes a study into the application of composite patches on thick steel structures typically used in mining operations. Extreme fatigue, temperature, erosive, and corrosive environments induce an array of equipment damage. The current weld repair techniques for these structures provide a fatigue life that is inferior to that of the original plate. Subsequent cracking must be revisited on a regular basis. The use of composite doublers, which do not have brittle fracture problems such as those inherent in welds, can help extend the structure's fatigue life and reduce the equipment downtime. Two of the main issues for adapting aircraft composite repairs to civil applications are developing an installation technique for carbon steel and accommodating large repairs on extremely thick structures. This study developed and proved an optimum field installation process using specific mechanical and chemical surface preparation techniques coupled with unique, in-situ heating methods. In addition, a comprehensive performance assessment of composite doubler repairs was completed to establish the viability of this technology for large, steel structures. The factors influencing the durability of composite patches in severe field environments were evaluated along with related laminate design issues.

Roach, David W.; Rackow, Kirk A.

2005-06-01T23:59:59.000Z

410

Nuclear reactor fuel structure containing uranium alloy wires embedded in a metallic matrix plate  

SciTech Connect (OSTI)

A nuclear fuel-containing plate structure for a nuclear reactor is described; such structure comprising a pair of malleable metallic non-fissionable matrix plates having confronting surfaces which are pressure bonded together and fully united to form a bonded surface, and elongated malleable wire-like fissionable fuel members separately confined and fully enclosed between the matrix plates along the interface to afford a high fuel density as well as structural integrity and effective retention of fission products. The plates have separate recesses formed in the confronting surfaces for closely receiving the wire-like fissionable fuel members. The wire-like fissionable fuel members are made of a maleable uranium alloy capable of being formed into elongated wire-like members and capable of withstanding pressure bonding. The wire-like fissionable fuel members are completely separated and isolated by fully united portions of the interface.

Travelli, A.

1988-01-19T23:59:59.000Z

411

Elastic properties of Pu metal and Pu-Ga alloys  

SciTech Connect (OSTI)

We present elastic properties, theoretical and experimental, of Pu metal and Pu-Ga ({delta}) alloys together with ab initio equilibrium equation-of-state for these systems. For the theoretical treatment we employ density-functional theory in conjunction with spin-orbit coupling and orbital polarization for the metal and coherent-potential approximation for the alloys. Pu and Pu-Ga alloys are also investigated experimentally using resonant ultrasound spectroscopy. We show that orbital correlations become more important proceeding from {alpha} {yields} {beta} {yields} {gamma} plutonium, thus suggesting increasing f-electron correlation (localization). For the {delta}-Pu-Ga alloys we find a softening with larger Ga content, i.e., atomic volume, bulk modulus, and elastic constants, suggest a weakened chemical bonding with addition of Ga. Our measurements confirm qualitatively the theory but uncertainties remain when comparing the model with experiments.

Soderlind, P; Landa, A; Klepeis, J E; Suzuki, Y; Migliori, A

2010-01-05T23:59:59.000Z

412

Metal chelate process to remove pollutants from fluids  

DOE Patents [OSTI]

The present invention relates to improved methods using an organic iron chelate to remove pollutants from fluids, such as flue gas. Specifically, the present invention relates to a process to remove NO[sub x] and optionally SO[sub 2] from a fluid using a metal ion (Fe[sup 2+]) chelate wherein the ligand is a dimercapto compound wherein the --SH groups are attached to adjacent carbon atoms (HS--C--C--SH) or (SH--C--CCSH) and contain a polar functional group so that the ligand of DMC chelate is water soluble. Alternatively, the DMC is covalently attached to a water insoluble substrate such as a polymer or resin, e.g., polystyrene. The chelate is regenerated using electroreduction or a chemical additive. The dimercapto compound bonded to a water insoluble substrate is also useful to lower the concentration or remove hazardous metal ions from an aqueous solution. 26 figures.

Chang, S.G.T.

1994-12-06T23:59:59.000Z

413

Method of forming and assembly of metal and ceramic parts  

DOE Patents [OSTI]

A method of forming and assembling at least two parts together that may be metal, ceramic, or a combination of metal and ceramic parts. Such parts may have different CTE. Individual parts that are formed and sintered from particles leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.

Ripley, Edward B

2014-04-22T23:59:59.000Z

414

Synthesis, chemical bonding and physical properties of RERhB{sub 4} (RE=Y, Dy-Lu)  

SciTech Connect (OSTI)

The compounds of rare-earth metals with rhodium and boron RERhB{sub 4} (RE=Y, Dy-Lu) crystallize with the orthorhombic structure type YCrB{sub 4} (space group Pbam, Pearson symbol oP24). The crystal structures of the compounds with RE=Y, Er, Tm and Yb were refined by using single-crystal diffraction data. Analysis of chemical bonding for YRhB{sub 4} and YbRhB{sub 4} was performed by electron localizability indicator and by calculation of quantum chemical charges (quantum theory of atoms in molecules). Boron and rhodium form the 3-D polyanion containing planar nets of three-bonded boron atoms interconnected by rhodium along [001]. The interaction of the RE species with the rhodium-boron polyanion is predominantly ionic. Magnetic susceptibility data of TmRhB{sub 4} and YbRhB{sub 4} showed that the RE species are in 4f{sup 12} (Tm) and 4f{sup 13} (Yb) electronic states, respectively. In the low-temperature region, the specific heat revealed a Schottky anomaly for TmRhB{sub 4} while an antiferromagnetic transition is observed at 3.5 K for YbRhB{sub 4}. X-ray absorption measurement at the Yb L{sub III} edge for YbRhB{sub 4} reveals the 4f{sup 13} state of ytterbium. - Graphical abstract: The compounds of rare-earth metals with rhodium and boron RERhB{sub 4} (RE=Y, Dy-Lu) crystallize with the orthorhombic structure type YCrB{sub 4}. Analysis of chemical bonding for YRhB{sub 4} and YbRhB{sub 4} was performed by electron localizability indicator and by calculation of quantum chemical charges (quantum theory of atoms in molecules). Boron and rhodium form the 3-D polyanion containing planar nets of three-bonded boron atoms interconnected by rhodium along [001]. The interaction of the RE species with the rhodium-boron polyanion is predominantly ionic.

Veremchuk, I. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany); Mori, T. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany); National Institute for Materials Science, Namiki 1-1, Tsukuba 305-0044 (Japan); Prots, Yu.; Schnelle, W.; Leithe-Jasper, A.; Kohout, M. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany); Grin, Yu. [Max-Planck-Institut fuer Chemische Physik fester Stoffe, Noethnitzer Str. 40, 01187 Dresden (Germany)], E-mail: grin@cpfs.mpg.de

2008-08-15T23:59:59.000Z

415

Liquid metal thermal electric converter  

DOE Patents [OSTI]

A liquid metal thermal electric converter which converts heat energy to electrical energy. The design of the liquid metal thermal electric converter incorporates a unique configuration which directs the metal fluid pressure to the outside of the tube which results in the structural loads in the tube to be compressive. A liquid metal thermal electric converter refluxing boiler with series connection of tubes and a multiple cell liquid metal thermal electric converter are also provided.

Abbin, Joseph P. (Albuquerque, NM); Andraka, Charles E. (Albuquerque, NM); Lukens, Laurance L. (Albuquerque, NM); Moreno, James B. (Albuquerque, NM)

1989-01-01T23:59:59.000Z

416

Method for forming metal contacts  

DOE Patents [OSTI]

Methods of forming metal contacts with metal inks in the manufacture of photovoltaic devices are disclosed. The metal inks are selectively deposited on semiconductor coatings by inkjet and aerosol apparatus. The composite is heated to selective temperatures where the metal inks burn through the coating to form an electrical contact with the semiconductor. Metal layers are then deposited on the electrical contacts by light induced or light assisted plating.

Reddington, Erik; Sutter, Thomas C; Bu, Lujia; Cannon, Alexandra; Habas, Susan E; Curtis, Calvin J; Miedaner, Alexander; Ginley, David S; Van Hest, Marinus Franciscus Antonius Maria

2013-09-17T23:59:59.000Z

417

High-Temperature Zirconia Oxygen Sensor with Sealed Metal/Metal...  

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

High-Temperature Zirconia Oxygen Sensor with Sealed MetalMetal Oxide Internal Reference High-Temperature Zirconia Oxygen Sensor with Sealed MetalMetal Oxide Internal Reference...

418

Metal corrosion in a supercritical carbon dioxide - liquid sodium power cycle.  

SciTech Connect (OSTI)

A liquid sodium cooled fast reactor coupled to a supercritical carbon dioxide Brayton power cycle is a promising combination for the next generation nuclear power production process. For optimum efficiency, a microchannel heat exchanger, constructed by diffusion bonding, can be used for heat transfer from the liquid sodium reactor coolant to the supercritical carbon dioxide. In this work, we have reviewed the literature on corrosion of metals in liquid sodium and carbon dioxide. The main conclusions are (1) pure, dry CO{sub 2} is virtually inert but can be highly corrosive in the presence of even ppm concentrations of water, (2) carburization and decarburization are very significant mechanism for corrosion in liquid sodium especially at high temperature and the mechanism is not well understood, and (3) very little information could be located on corrosion of diffusion bonded metals. Significantly more research is needed in all of these areas.

Moore, Robert Charles; Conboy, Thomas M.

2012-02-01T23:59:59.000Z

419

Electronic Structure of Transition Metal-Cysteine Complexes From X-Ray Absorption Spectroscopy  

SciTech Connect (OSTI)

The electronic structures of Hg{sup II}, Ni{sup II}, Cr{sup III}, and Mo{sup V} complexes with cysteine were investigated by sulfur K-edge X-ray absorption near-edge structure (XANES) spectroscopy and density functional theory. The covalency in the metal-sulfur bond was determined by analyzing the intensities of the electric-dipole allowed pre-edge features appearing in the XANES spectra below the ionization threshold. Because of the well-defined structures of the selected cysteine complexes, the current work provides a reference set for further sulfur K-edge XAS studies of bioinorganic active sites with transition metal-sulfur bonds from cysteine residues as well as more complex coordination compounds with thiolate ligands.

Leung, B.O.; Jalilehvand, F.; Szilagyi, R.K.

2009-05-19T23:59:59.000Z

420

Activation of Noble Metals on Metal-Carbide Surfaces: Novel Catalysts for CO Oxidation, Desulfurization and Hydrogenation Reactions  

SciTech Connect (OSTI)

This perspective article focuses on the physical and chemical properties of highly active catalysts for CO oxidation, desulfurization and hydrogenation reactions generated by depositing noble metals on metal-carbide surfaces. To rationalize structure-reactivity relationships for these novel catalysts, well-defined systems are required. High-resolution photoemission, scanning tunneling microscopy (STM) and first-principles periodic density-functional (DF) calculations have been used to study the interaction of metals of Groups 9, 10 and 11 with MC(001) (M = Ti, Zr, V, Mo) surfaces. DF calculations give adsorption energies that range from 2 eV (Cu, Ag, Au) to 6 eV (Co, Rh, Ir). STM images show that Au, Cu, Ni and Pt grow on the carbide substrates forming two-dimensional islands at very low coverage, and three-dimensional islands at medium and large coverages. In many systems, the results of DF calculations point to the preferential formation of admetal-C bonds with significant electronic perturbations in the admetal. TiC(001) and ZrC(001) transfer some electron density to the admetals facilitating bonding of the adatom with electron-acceptor molecules (CO, O{sub 2}, C{sub 2}H{sub 4}, SO{sub 2}, thiophene, etc.). For example, the Cu/TiC(001) and Au/TiC(001) systems are able to cleave both S-O bonds of SO{sub 2} at a temperature as low as 150 K, displaying a reactivity much larger than that of TiC(001) or extended surfaces of bulk copper and gold. At temperatures below 200 K, Au/TiC is able to dissociate O{sub 2} and perform the 2CO + O{sub 2} {yields} 2CO{sub 2} reaction. Furthermore, in spite of the very poor hydrodesulfurization performance of TiC(001) or Au(111), a Au/TiC(001) surface displays an activity for the hydrodesulfurization of thiophene higher than that of conventional Ni/MoS{sub x} catalysts. In general, the Au/TiC system is more chemically active than systems generated by depositing Au nanoparticles on oxide surfaces. Thus, metal carbides are excellent supports for enhancing the chemical reactivity of noble metals.

Rodriguez J. A.; Illas, F.

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

E-Print Network 3.0 - amide bond formation Sample Search Results  

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

Irvine Collection: Chemistry 3 J. Am. Chem. SOC.1994,116,2149-2150 Amide-Amide and Amide-Water Hydrogen Bonds Summary: of hydrogen bonds observed here therefore suggests that...

422

Facile Thermal W-W Bond Homolysis in the N-Heterocyclic Carbene...  

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

Thermal W-W Bond Homolysis in the N-Heterocyclic Carbene-Containing Tungsten Dimer CpW(CO)2(IMe)2. Facile Thermal W-W Bond Homolysis in the N-Heterocyclic Carbene-Containing...

423

Molecular Dynamics of Neutral Polymer Bonding Agent (NPBA) as Revealed by Solid-State NMR Spectroscopy  

E-Print Network [OSTI]

Neutral polymer bonding agent (NPBA) is one of the most promising polymeric materials, widely used in nitrate ester plasticized polyether (NEPE) propellant as bonding agent. The structure and dynamics of NPBA under different ...

Hu, Wei

424

Role of interatomic bonding in the mechanical anisotropy and interlayer cohesion of CSH crystals  

SciTech Connect (OSTI)

Atomic scale properties of calcium silicate hydrate (CSH), the main binding phase of hardened Portland cement, are not well understood. Over a century of intense research has identified almost 50 different crystalline CSH minerals which are mainly categorized by their Ca/Si ratio. The electronic structure and interatomic bonding in four major CSH crystalline phases with structures close to those found in hardened cement are investigated via ab initio methods. Our result reveals the critical role of hydrogen bonding and importance of specifying precise locations for water molecules. Quantitative analysis of contributions from different bond types to the overall cohesion shows that while the Si-O covalent bonds dominate, the hydrogen bonding and Ca-O bonding are also very significant. Calculated results reveal the correlation between bond topology and interlayer cohesion. The overall bond order density (BOD) is found to be a more critical measure than the Ca/Si ratio in classifying different CSH crystals.

Dharmawardhana, C.C. [Department of Physics and Astronomy, University of Missouri—Kansas City, Kansas City, MO 64110 (United States)] [Department of Physics and Astronomy, University of Missouri—Kansas City, Kansas City, MO 64110 (United States); Misra, A. [Department of Civil, Environmental, and Architectural Engineering, University of Kansas, Lawrence, KS 66045 (United States)] [Department of Civil, Environmental, and Architectural Engineering, University of Kansas, Lawrence, KS 66045 (United States); Aryal, S.; Rulis, P. [Department of Physics and Astronomy, University of Missouri—Kansas City, Kansas City, MO 64110 (United States)] [Department of Physics and Astronomy, University of Missouri—Kansas City, Kansas City, MO 64110 (United States); Ching, W.Y., E-mail: ccdxz8@mail.umkc.edu [Department of Physics and Astronomy, University of Missouri—Kansas City, Kansas City, MO 64110 (United States)

2013-10-15T23:59:59.000Z

425

Chemical Bonding In Amorphous Si Coated-carbon Nanotube As Anodes...  

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

Bonding In Amorphous Si Coated-carbon Nanotube As Anodes For Li ion Batteries: A XANES Study. Chemical Bonding In Amorphous Si Coated-carbon Nanotube As Anodes For Li ion...

426

Bond Strength Degradation for CFRP and Steel reinforcing Bars in Concrete at Elevated Temperature   

E-Print Network [OSTI]

tendon as compared with steel prestressing wire. The results of transient elevated temperature bond pullout and tensile strength tests on CFRP tendons and steel prestressing wire are presented and discussed, and show that bond failure at elevated...

Maluk, Cristian; Bisby, Luke; Terrasi, Giovanni; Green, Mark

2011-03-01T23:59:59.000Z

427

2-Propanol Dehydration on TiO2(110): The Effect of Bridge-Bonded...  

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

2-Propanol Dehydration on TiO2(110): The Effect of Bridge-Bonded Oxygen Vacancy Blocking. 2-Propanol Dehydration on TiO2(110): The Effect of Bridge-Bonded Oxygen Vacancy Blocking....

428

Hydrogen Bonding, H-D Exchange, and Molecular Mobility in Thin...  

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

Bonding, H-D Exchange, and Molecular Mobility in Thin Water Films on TiO2(110). Hydrogen Bonding, H-D Exchange, and Molecular Mobility in Thin Water Films on TiO2(110). Abstract:...

429

Kinetic simulation of heterogeneous catalytic processes: Ethane hydrogenolysis over supported group VIII metals  

SciTech Connect (OSTI)

A kinetic model for ethane hydrogenolysis over Pt, Pd, Ir, and Co was formulated in terms of essentially two chemical parameters: the strength of bonding between atomic hydrogen and the metal surface and the strength of carbon-metal bonding between hydrocarbon fragments and the surface. These two surface bond strengths were estimated by calorimetric measurements of the heats of H{sub 2} and CO adsorption, combined with bond order conservation calculations. The results of the kinetic simulations suggest that ethane hydrogenolysis over Pt, Pd, Ir and Co takes place through irreversible C-C rupture of C{sub 2}H{sub 4} and C{sub 2}H{sub 3} surface species. Hydrogenation of monocarbon CH{sub y} fragments is kinetically insignificant. Dissociative adsorption of hydrogen is an equilibrated process, while dissociative adsorption of ethane is slow and reversible. Finally, the role of kinetic modeling in the formulation, interpretation, and generalization of experimental research in heterogeneous catalysis is discussed.

Goddard, S.A.; Amiridis, M.D.; Rekoske, J.E.; Cardona-Martinez, N.; Dumesic, J.A. (Univ. of Wisconsin, Madison (USA))

1989-05-01T23:59:59.000Z

430

Method for locating metallic nitride inclusions in metallic alloy ingots  

DOE Patents [OSTI]

A method of determining the location and history of metallic nitride and/or oxynitride inclusions in metallic melts. The method includes the steps of labeling metallic nitride and/or oxynitride inclusions by making a coreduced metallic-hafnium sponge from a mixture of hafnium chloride and the chloride of a metal, reducing the mixed chlorides with magnesium, nitriding the hafnium-labeled metallic-hafnium sponge, and seeding the sponge to be melted with hafnium-labeled nitride inclusions. The ingots are neutron activated and the hafnium is located by radiometric means. Hafnium possesses exactly the proper metallurgical and radiochemical properties for this use.

White, Jack C. (Albany, OR); Traut, Davis E. (Corvallis, OR); Oden, Laurance L. (Albany, OR); Schmitt, Roman A. (Corvallis, OR)

1992-01-01T23:59:59.000Z

431

Performance and Reliability of Bonded Interfaces for High-Temperature Packaging (Presentation)  

SciTech Connect (OSTI)

This presentation reviews the status of the performance and reliability of bonded interfaces for high-temperature packaging.

Devoto, D.

2014-06-01T23:59:59.000Z

432

Method for improving the oxidation-resistance of metal substrates coated with thermal barrier coatings  

DOE Patents [OSTI]

A method for providing a protective coating on a metal-based substrate is disclosed. The method involves the application of an aluminum-rich mixture to the substrate to form a discontinuous layer of aluminum-rich particles, followed by the application of a second coating over the discontinuous layer of aluminum-rich particles. Aluminum diffuses from the aluminum-rich layer into the substrate, and into any bond coat layer which is subsequently applied. Related articles are also described.

Thompson, Anthony Mark (Niskayuna, NY); Gray, Dennis Michael (Delanson, NY); Jackson, Melvin Robert (Niskayuna, NY)

2002-01-01T23:59:59.000Z

433

Nitrided Metallic Bipolar Plates  

SciTech Connect (OSTI)

The objectives are: (1) Develop and optimize stainless steel alloys amenable to formation of a protective Cr-nitride surface by gas nitridation, at a sufficiently low cost to meet DOE targets and with sufficient ductility to permit manufacture by stamping. (2) Demonstrate capability of nitridation to yield high-quality stainless steel bipolar plates from thin stamped alloy foils (no significant stamped foil warping or embrittlement). (3) Demonstrate single-cell fuel cell performance of stamped and nitrided alloy foils equivalent to that of machined graphite plates of the same flow-field design ({approx}750-1,000 h, cyclic conditions, to include quantification of metal ion contamination of the membrane electrode assembly [MEA] and contact resistance increase attributable to the bipolar plates). (4) Demonstrate potential for adoption in automotive fuel cell stacks. Thin stamped metallic bipolar plates offer the potential for (1) significantly lower cost than currently-used machined graphite bipolar plates, (2) reduced weight/volume, and (3) better performance and amenability to high volume manufacture than developmental polymer/carbon fiber and graphite composite bipolar plates. However, most metals exhibit inadequate corrosion resistance in proton exchange membrane fuel cell (PEMFC) environments. This behavior leads to high electrical resistance due to the formation of surface oxides and/or contamination of the MEA by metallic ions, both of which can significantly degrade fuel cell performance. Metal nitrides offer electrical conductivities up to an order of magnitude greater than that of graphite and are highly corrosion resistant. Unfortunately, most conventional coating methods (for metal nitrides) are too expensive for PEMFC stack commercialization or tend to leave pinhole defects, which result in accelerated local corrosion and unacceptable performance.

Brady, Michael P [ORNL; Tortorelli, Peter F [ORNL; Pihl, Josh A [ORNL; Toops, Todd J [ORNL; More, Karren Leslie [ORNL; Meyer III, Harry M [ORNL; Vitek, John Michael [ORNL; Wang, Heli [National Renewable Energy Laboratory (NREL); Turner, John [National Renewable Energy Laboratory (NREL); Wilson, Mahlon [Los Alamos National Laboratory (LANL); Garzon, Fernando [Los Alamos National Laboratory (LANL); Rockward, Tommy [Los Alamos National Laboratory (LANL); Connors, Dan [GenCell Corp; Rakowski, Jim [Allegheny Ludlum; Gervasio, Don [Arizona State University

2008-01-01T23:59:59.000Z

434

Characterization of Fuel-Cladding Bond Strength Using Laser Shock  

SciTech Connect (OSTI)

This paper describes new laser-based capabilities for characterization of fuel-cladding bond strength in nuclear fuels, and presents preliminary results obtained from studies on as-fabricated monolithic fuel consisting of uranium-10 wt.% molybdenum alloys clad in 6061 aluminum by hot isostatic pressing. Two complementary experimental methods are employed, laser-shock testing and laser-ultrasonic imaging. Measurements are spatially localized, non-contacting and require minimum specimen preparation, and are therefore ideally suited for applications involving radioactive materials, including irradiated materials. The theoretical principles and experimental approaches employed in characterization of nuclear fuel plates are described. The ability to measure layer thicknesses, elastic properties of the constituents, and the location and nature of laser-shock induced debonds is demonstrated, and preliminary bond strength measurement results are discussed.

James A. Smith; David L. Cottle; Barry H. Rabin

2014-04-01T23:59:59.000Z

435

Wafer bonded virtual substrate and method for forming the same  

DOE Patents [OSTI]

A method of forming a virtual substrate comprised of an optoelectronic device substrate and handle substrate comprises the steps of initiating bonding of the device substrate to the handle substrate, improving or increasing the mechanical strength of the device and handle substrates, and thinning the device substrate to leave a single-crystal film on the virtual substrate such as by exfoliation of a device film from the device substrate. The handle substrate is typically Si or other inexpensive common substrate material, while the optoelectronic device substrate is formed of more expensive and specialized electro-optic material. Using the methodology of the invention a wide variety of thin film electro-optic materials of high quality can be bonded to inexpensive substrates which serve as the mechanical support for an optoelectronic device layer fabricated in the thin film electro-optic material.

Atwater, Jr., Harry A. (So. Pasadena, CA); Zahler, James M. (Pasadena, CA); Morral, Anna Fontcuberta i (Paris, FR)

2007-07-03T23:59:59.000Z

436

Bonding topologies in diamondlike amorphous-carbon films  

SciTech Connect (OSTI)

The carbon ion energy used during filtered cathodic vacuum arc deposition determines the bonding topologies of amorphous-carbon (a-C) films. Regions of relatively low density occur near the substrate/film and film/surface interfaces and their thicknesses increase with increasing deposition energy. The ion subplantation growth results in mass density gradients in the bulk portion of a-C in the growth direction; density decreases with distance from the substrate for films grown using ion energies < 60 eV and increases for films grown using ion energies > 160 eV. Films grown between these energies are the most diamondlike with relatively uniform bulk density and the highest optical transparencies. Bonding topologies evolve with increasing growth energy consistent with the propagation of subplanted carbon ions inducing a partial transformation of 4-fold to 3-fold coordinated carbon atoms.

SIEGAL,MICHAEL P.; PROVENCIO,PAULA P.; TALLANT,DAVID R.; SIMPSON,REGINA L.; KLEINSORGE,B.; MILNE,W.I.

2000-01-27T23:59:59.000Z

437

Hard metal composition  

DOE Patents [OSTI]

A composition of matter having a Rockwell A hardness of at least 85 is formed from a precursor mixture comprising between 3 and 10 wt % boron carbide and the remainder a metal mixture comprising from 70 to 90% tungsten or molybdenum, with the remainder of the metal mixture comprising nickel and iron or a mixture thereof. The composition has a relatively low density of between 7 and 14 g/cc. The precursor is preferably hot pressed to yield a composition having greater than 100% of theoretical density.

Sheinberg, H.

1983-07-26T23:59:59.000Z

438

Hard metal composition  

DOE Patents [OSTI]

A composition of matter having a Rockwell A hardness of at least 85 is formed from a precursor mixture comprising between 3 and 10 weight percent boron carbide and the remainder a metal mixture comprising from 70 to 90 percent tungsten or molybdenum, with the remainder of the metal mixture comprising nickel and iron or a mixture thereof. The composition has a relatively low density of between 7 to 14 g/cc. The precursor is preferably hot pressed to yield a composition having greater than 100% of theoretical density.

Sheinberg, Haskell (Los Alamos, NM)

1986-01-01T23:59:59.000Z

439

Metal alloy identifier  

DOE Patents [OSTI]

To identify the composition of a metal alloy, sparks generated from the alloy are optically observed and spectrographically analyzed. The spectrographic data, in the form of a full-spectrum plot of intensity versus wavelength, provide the "signature" of the metal alloy. This signature can be compared with similar plots for alloys of known composition to establish the unknown composition by a positive match with a known alloy. An alternative method is to form intensity ratios for pairs of predetermined wavelengths within the observed spectrum and to then compare the values of such ratios with similar values for known alloy compositions, thereby to positively identify the unknown alloy composition.

Riley, William D. (Avondale, MD); Brown, Jr., Robert D. (Avondale, MD)

1987-01-01T23:59:59.000Z

440

Metallic coating of microspheres  

SciTech Connect (OSTI)

Extremely smooth, uniform metal coatings of micrometer thicknesses on microscopic glass spheres (microspheres) are often needed as targets for inertial confinement fusion (ICF) experiments. The first part of this paper reviews those methods used successfully to provide metal coated microspheres for ICF targets, including magnetron sputtering, electro- and electroless plating, and chemical vapor pyrolysis. The second part of this paper discusses some of the critical aspects of magnetron sputter coating of microspheres, including substrate requirements, the sticking of microspheres during coating (preventing a uniform coating), and the difficulties in growing the desired dense, smooth, uniform microstructure on continuously moving spherical substrates.

Meyer, S.F.

1980-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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

Metal Mechanisms | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Regionat Cornell Batteries & Fuel Cells In ThisMetal Mechanisms Metal

442

Oxford Area Community School District (Michigan) Bonds Case Study  

Broader source: Energy.gov [DOE]

Michigan’s Oxford Area Community School District entered into an energy savings performance contract and issued limited tax general obligation bonds to fund the up-front costs of almost $3 million of energy-related improvements. Case study is excerpted from Financing Energy Upgrades for K-12 School Districts: A Guide to Tapping into Funding for Energy Efficiency and Renewable Energy Improvements. Author: Merrian Borgeson and Mark Zimring

443

Flip chip electrical interconnection by selective electroplating and bonding  

E-Print Network [OSTI]

on a glass substrate made of 500/2000 A° of Cr/Au with 3150 lm in length and 10 lm in width. Two silicon. The interconnection chip has 102 Cr/Au interconnection lines with 3150 lm in length and 10 lm in width. The bonding pads on the ends of the interconnection lines are 40 lm by 40 lm. A 0.8 lm thick layer of aluminum

Lin, Liwei

444

Algorithm for anisotropic diffusion in hydrogen-bonded networks  

E-Print Network [OSTI]

In this paper I describe a specialized algorithm for anisotropic diffusion determined by a field of transition rates. The algorithm can be used to describe some interesting forms of diffusion that occur in the study of proton motion in a network of hydrogen bonds. The algorithm produces data that require a nonstandard method of spectral analysis which is also developed here. Finally, I apply the algorithm to a simple specific example.

Edoardo Milotti

2007-04-04T23:59:59.000Z

445

Quantum Confinement in Hydrogen Bond of DNA and RNA  

E-Print Network [OSTI]

The hydrogen bond is a fundamental ingredient to stabilize the DNA and RNA macromolecules. The main contribution of this work is to describe quantitatively this interaction as a consequence of the quantum confinement of the hydrogen. The results for the free and confined system are compared with experimental data. The formalism to compute the energy gap of the vibration motion used to identify the spectrum lines is the Variational Method allied to Supersymmetric Quantum Mechanics.

da Silva dos Santos; Elso Drigo Filho; Regina Maria Ricotta

2015-02-09T23:59:59.000Z

446

Fluorinated diamond particles bonded in a filled fluorocarbon resin matrix  

DOE Patents [OSTI]

A method of producing fluorinated diamond particles bonded in a filled fluorocarbon resin matrix. Simple hot pressing techniques permit the formation of such matrices from which diamond impregnated grinding tools and other articles of manufacture can be produced. Teflon fluorocarbon resins filled with Al/sub 2/O/sub 3/ yield grinding tools with substantially improved work-to-wear ratios over grinding wheels known in the art.

Taylor, G.W.; Roybal, H.E.

1983-11-14T23:59:59.000Z

447

Fluorinated diamond particles bonded in a filled fluorocarbon resin matrix  

DOE Patents [OSTI]

A method of producing fluorinated diamond particles bonded in a filled fluorocarbon resin matrix. Simple hot pressing techniques permit the formation of such matrices from which diamond impregnated grinding tools and other articles of manufacture can be produced. Teflon fluorocarbon resins filled with Al.sub.2 O.sub.3 yield grinding tools with substantially improved work-to-wear ratios over grinding wheels known in the art.

Taylor, Gene W. (Los Alamos, NM); Roybal, Herman E. (Santa Fe, NM)

1985-01-01T23:59:59.000Z

448

Quantum Confinement in Hydrogen Bond of DNA and RNA  

E-Print Network [OSTI]

The hydrogen bond is a fundamental ingredient to stabilize the DNA and RNA macromolecules. The main contribution of this work is to describe quantitatively this interaction as a consequence of the quantum confinement of the hydrogen. The results for the free and confined system are compared with experimental data. The formalism to compute the energy gap of the vibration motion used to identify the spectrum lines is the Variational Method allied to Supersymmetric Quantum Mechanics.

Santos, da Silva dos; Ricotta, Regina Maria

2015-01-01T23:59:59.000Z

449

Opening Pandora's Box - Sovereign Bonds in International Arbitration  

E-Print Network [OSTI]

OPENING PANDORA’S BOX: SOVEREIGN BONDS IN INTERNATIONAL ARBITRATION By Michael Waibel* In recent years, sovereign debt crises have received much attention from the perspective of international public policy, but an effective legal solution... . In 1995, Mexico was unable to meet its external debt obligations. Three years later, a severe financial crisis hit East Asia. Russia defaulted in 1998. Argentina’s 2001 default on more than U.S.$100 billion in private debt was the largest in history.7...

Waibel, Michael

450

Preliminary Investigations of Joining Technologies for Attaching Refractory Metals to Ni-Based Superalloys  

SciTech Connect (OSTI)

In this study, a range of joining technologies has been investigated for creating attachments between refractory metal and Ni-based superalloys. Refractory materials of interest include Mo-47%Re, T-111, and Ta-10%W. The Ni-based superalloys include Hastelloy X and MarM 247. During joining with conventional processes, these materials have potential for a range of solidification and intermetallic formation-related defects. For this study, three non-conventional joining technologies were evaluated. These included inertia welding, electro-spark deposition (ESD) welding, and magnetic pulse welding (MPW). The developed inertia welding practice closely paralleled that typically used for the refractory metals alloys. Metallographic investigations showed that forging during inertia welding occurred predominantly on the refractory metal side. It was also noted that at least some degree of forging on the Ni-based superalloy side of the joint was necessary to achieve consistent bonding. Both refractory metals were readily weldable to the Hastelloy X material. When bonding to the MarM 247, results were inconsistent. This was related to the higher forging temperatures of the MarM 247, and subsequent reduced deformation on that material during welding. ESD trials using a Hastelloy X filler were successful for all material combinations. ESD places down very thin (5- to 10-{mu}m) layers per pass, and interactions between the substrates and the fill were limited (at most) to that layer. For the refractory metals, the fill only appeared to wet the surface, with minimal dilution effects. Microstructures of the deposits showed high weld metal integrity with maximum porosity on the order of a few percent. Some limited success was also obtained with MPW. In these trials, only the T-111 tubes were used. Joints were possible for the T-111 tube to the Hastelloy X bar stock, but the stiffness of the tube (resisting collapse) necessitated the use of very high power levels. These power levels resulted in damage to the equipment (concentrator) during welding. It is of note that the joint made showed the typical wavy bond microstructure associated with magnetic pulse/explosion bond joints. Joints were not possible between the T-111 tube and the MarM 247 bar stock. In this case, the MarM 247 shattered before sufficient impact forces could be developed for bonding.

Gould, Jerry E. [Edison Welding Institute, 1250 Arthur E. Adams Drive, Columbus, OH 43221 (United States); Ritzert, Frank J. [NASA Glenn Research Center, 21000 Brookpark Road, Mail Stop 49-1, Cleveland, OH 44135 (United States); Loewenthal, William S. [Ohio Aerospace Institute, 21000 Brookpark Road, Mail Stop 49-1, Cleveland, OH 44135 (United States)

2006-01-20T23:59:59.000Z

451

Low Temperature Transient Liquid Phase Bonding of Ti6AI4V  

E-Print Network [OSTI]

bonds by intermetallic formation and subsequent diffusion annealing, but are limited to temperatures above 87s·c. Solid state activated diffusion bonding using sputtered copper intcrlayers will form joints temperature [1,2]. 1LP bonding of titanium has been used to produce aerospace components as descnoed by Norris

Eagar, Thomas W.

452

Ionwater hydrogen-bond switching observed with 2D IR vibrational echo chemical  

E-Print Network [OSTI]

Ion­water hydrogen-bond switching observed with 2D IR vibrational echo chemical exchange for review November 8, 2008) The exchange of water hydroxyl hydrogen bonds between anions and water oxygens of anion­ water hydroxyl hydrogen bond switching under thermal equilib- rium conditions as Taw 7 1 ps. Pump

Fayer, Michael D.

453

Extent of Hydrogen-Bond Protection in Folded Proteins: A Constraint on Packing Architectures  

E-Print Network [OSTI]

Extent of Hydrogen-Bond Protection in Folded Proteins: A Constraint on Packing Architectures Ariel structuring and ultimately exclusion of water by hydrophobes surrounding backbone hydrogen bonds turn hydrophobes yields an optimal hydrogen-bond stabilization. This motif is shown to be nearly ubiquitous

Berry, R. Stephen

454

Bonding in Sodium Chloride Nanotubes: A New Analysis via Madelung Constants and Cohesive Energies  

E-Print Network [OSTI]

1 Bonding in Sodium Chloride Nanotubes: A New Analysis via Madelung Constants and Cohesive Energies is introduced which employs a linear relationship between nanotube cohesive energies determined via Density between ionic and cohesive bonding energies indicate that, as the nanotubes become longer, ionic bonding

Hanusa, Christopher

455

AN INVESTIGATION OF THE BONDING AT THE CONCRETE POLYMER COMPOSITE INTERFACE  

E-Print Network [OSTI]

AN INVESTIGATION OF THE BONDING AT THE CONCRETE POLYMER COMPOSITE INTERFACE Wai How Soong, S, USA. ABSTRACT Bonding between the concrete and polymer composite (reinforcement) tendon was studied) and surface roughness of composite reinforcement tendons on the two types of bond strengths were investigated

456

TRANSIENT UQUID PHASE BONDING PROCESSES W. D. MacDonald and T.W. Eagar  

E-Print Network [OSTI]

. In this article, the term TLP \\viii apply to those bonding processes which rely on solid state diffusion to drive) ) ) .. ' TRANSIENT UQUID PHASE BONDING PROCESSES W. D. MacDonald and T.W. Eagar Department Transient liquid phase (TLP) bonding is an ancient process that has received increased attention in recent

Eagar, Thomas W.

457

Silver diffusion bonding and layer transfer of lithium niobate to silicon Kenneth Diest,a  

E-Print Network [OSTI]

Silver diffusion bonding and layer transfer of lithium niobate to silicon Kenneth Diest,a Melissa J July 2008; accepted 8 August 2008; published online 5 September 2008 A diffusion bonding method has, and upon heating, a diffusion bond was formed. Transmission electron microscopy confirms the interface

Atwater, Harry

458

Influence of silicon dangling bonds on germanium thermal diffusion within R. S. Cai,2  

E-Print Network [OSTI]

Influence of silicon dangling bonds on germanium thermal diffusion within SiO2 glass D. Barba,1 R online 17 March 2014) We study the influence of silicon dangling bonds on germanium thermal diffusion of several orders of magnitudes.12,16­18 This may suggest that Si dangling bonds can affect the diffusion

459

Particle/substrate interaction in the cold-spray bonding process  

E-Print Network [OSTI]

, atomic inter-diffusion is not expected to play a significant role in particle/substrate bonding. This canC2 148 9 Particle/substrate interaction in the cold-spray bonding process M. GRUJICIC, Clemson in this chapter to the problem of particle/substrate interactions and bonding during cold spray. The actual

Grujicic, Mica

460

Low Temperature Transient Liquid Phase (LTTLP) Bonding for Au/Cu  

E-Print Network [OSTI]

of Technology, Cambridge, MA 02139 TheLow Temperature TransientLiquidPhase Diffusion Bonding (LTTLP) process has) ) M. M. Hou Low Temperature Transient Liquid Phase (LTTLP) Bonding for Au/Cu and Cu been bonded to copper heatsink.s at temperatures less than 160"C, using /n-Sn eutectic solders. After

Eagar, Thomas W.

Note: This page contains sample records for the topic "metal oxo bonds" 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

Simultaneous Bayesian reconstruction of diffusivity and bond potentials using path integrals  

E-Print Network [OSTI]

Simultaneous Bayesian reconstruction of diffusivity and bond potentials using path integrals Joshua requires fewer data and allows simultaneous inference of both complex bond potentials and diffusivity spectroscopy (DFS) has been used to distort bonds. The resulting responses, in the form of rupture forces, work

Levine, Alex J.

462

Molecular surface electrostatic potentials in the analysis of non-hydrogen-bonding noncovalent interactions  

SciTech Connect (OSTI)

Electrostatic potentials computed on molecular surfaces are used to analyze some noncovalent interactions that are not in the category of hydrogen bonding, e.g. halogen bonding. The systems examined include halogenated methanes, substituted benzenes, s-tetrazine and 1,3-bisphenylurea. The data were obtained by ab initio SCF calculations. Electrostatic potentials, Non-hydrogen-bonding noncovalent interactions, Molecular surfaces.

Murray, J.S.; Paulsen, K.; Politzer, P.

1993-12-27T23:59:59.000Z

463

Ligand Binding to the Pregnane X Receptor by Geometric Matching of Hydrogen Bonds  

E-Print Network [OSTI]

space. Hydrogen bonds have been used in FlexX [3] as part of a more complete energy function. Our conformations to PXR based on hydrogen bond geometry and use them as a starting point for ranking ligands aspect of the energy function, the hydrogen bonds, in order to identify the discriminating factor

North Carolina at Chapel Hill, University of

464

Hydrogen bond dynamics in the active site of photoactive yellow protein  

E-Print Network [OSTI]

Hydrogen bond dynamics in the active site of photoactive yellow protein Paul A. Sigala, Mark A for review February 5, 2009) Hydrogen bonds play major roles in biological structure and function. Nonetheless, hydrogen-bonded protons are not typically observed by X-ray crystallography, and most structural

Herschlag, Dan

465

The Hydrogen Bonding of Cytosinewith Guanine:Calorimetric and`H-NMR Analysis  

E-Print Network [OSTI]

The Hydrogen Bonding of Cytosinewith Guanine:Calorimetric and`H-NMR Analysis of the Molecular of hydrogen-bondformation between guanine (G) and cytusine (C) in o-dichloro- benzene and in chloroformat 25°C forming hydrogen bonds. Consequently, hydrogen-bond formation in our system is primarily between the bases

Williams, Loren

466

Hydrogen bond dynamics in membrane protein function Ana-Nicoleta Bondar a,  

E-Print Network [OSTI]

Review Hydrogen bond dynamics in membrane protein function Ana-Nicoleta Bondar a, , Stephen H 30 November 2011 Available online 8 December 2011 Keywords: Membrane protein structure Hydrogen bond Membrane protein dynamics Lipid­protein interactions Changes in inter-helical hydrogen bonding

White, Stephen

467

Hydrogen Bond Dissociation and Reformation in Methanol Oligomers Following Hydroxyl Stretch Relaxation  

E-Print Network [OSTI]

Hydrogen Bond Dissociation and Reformation in Methanol Oligomers Following Hydroxyl Stretch, 2002 Vibrational relaxation and hydrogen bond dynamics in methanol-d dissolved in CCl4 have been-d molecules both accepting and donating hydrogen bonds at 2500 cm-1 . Following vibrational relaxation

Fayer, Michael D.

468

Hydrogen bond breaking probed with multidimensional stimulated vibrational echo correlation spectroscopy  

E-Print Network [OSTI]

Hydrogen bond breaking probed with multidimensional stimulated vibrational echo correlation September 2003 Hydrogen bond population dynamics are extricated with exceptional detail using ultrafast ( 50 of methanol­OD oligomers in CCl4 . Hydrogen bond breaking makes it possible to acquire data for times much

Fayer, Michael D.

469

Native Hydrogen Bonds in a Molten Globule: The Apoflavodoxin Thermal Intermediate  

E-Print Network [OSTI]

Native Hydrogen Bonds in a Molten Globule: The Apoflavodoxin Thermal Intermediate Marõ�a P. Iru�n1 in surface- exposed hydrogen bonds connecting secondary-structure elements in the native protein. All hydrogen bonds analysed are formed in the molten globule intermediate, either with native strength

Sancho, Javier

470

Vacuum fusion bonded glass plates having microstructures thereon  

DOE Patents [OSTI]

An improved apparatus and method for vacuum fusion bonding of large, patterned glass plates. One or both glass plates are patterned with etched features such as microstructure capillaries and a vacuum pumpout moat, with one plate having at least one hole therethrough for communication with a vacuum pumpout fixture. High accuracy alignment of the plates is accomplished by a temporary clamping fixture until the start of the fusion bonding heat cycle. A complete, void-free fusion bond of seamless, full-strength quality is obtained through the plates; because the glass is heated well into its softening point and because of a large, distributed force that is developed that presses the two plates together from the difference in pressure between the furnace ambient (high pressure) and the channeling and microstructures in the plates (low pressure) due to the vacuum drawn. The apparatus and method may be used to fabricate microcapillary arrays for chemical electrophoresis; for example, any apparatus using a network of microfluidic channels embedded between plates of glass or similar moderate melting point substrates with a gradual softening point curve, or for assembly of glass-based substrates onto larger substrates, such as in flat panel display systems.

Swierkowski, Steve P. (Livermore, CA); Davidson, James C. (Livermore, CA); Balch, Joseph W. (Livermore, CA)

2001-01-01T23:59:59.000Z

471

Effect of hydrogen bond cooperativity on the behavior of water  

E-Print Network [OSTI]

Four scenarios have been proposed for the low--temperature phase behavior of liquid water, each predicting different thermodynamics. The physical mechanism which leads to each is debated. Moreover, it is still unclear which of the scenarios best describes water, as there is no definitive experimental test. Here we address both open issues within the framework of a microscopic cell model by performing a study combining mean field calculations and Monte Carlo simulations. We show that a common physical mechanism underlies each of the four scenarios, and that two key physical quantities determine which of the four scenarios describes water: (i) the strength of the directional component of the hydrogen bond and (ii) the strength of the cooperative component of the hydrogen bond. The four scenarios may be mapped in the space of these two quantities. We argue that our conclusions are model-independent. Using estimates from experimental data for H bond properties the model predicts that the low-temperature phase diagram of water exhibits a liquid--liquid critical point at positive pressure.

Kevin Stokely; Marco G. Mazza; H. Eugene Stanley; Giancarlo Franzese

2009-08-27T23:59:59.000Z

472

Structural behavior of silicone bonded glass block panels  

SciTech Connect (OSTI)

Silicone sealant was submitted for mortar in bonding glass blocks. The sealant`s tensile and shear strengths and stiffnesses were determined. Joints bonding two glass blocks were tested for stiffness and strength in tension, bending, out-of-plane shear, and in-plane shear. Bending tests were done on specimens one block wide and four blocks long to evaluate one-way bending behavior. A six block by six block panel, supported on all four sides, was built and tested under simulated wind load. An analytical model with material nonlinearity in the joints was developed for the one-way bending case. It gave good comparisons with the experimental data to load levels approaching failure. A more complex analytical model was developed for the two-way panel. It was only valid for lower load levels, in the range of potential allowable design loads, but compared well with test results. Silicone bonded glass block panels have potential for meeting the wind load requirements necessary for exterior use.

Chang, K.F. [Structural Engineering Associates, Inc., San Antonio, TX (United States); Sandberg, L.B. [Michigan Technological Univ. Houghton, MI (United States)

1996-12-31T23:59:59.000Z

473

Method of attaching ceramics to gas-turbine metal components  

SciTech Connect (OSTI)

When attaching ceramics to metal gas-turbine parts, an interlayer of lowmodulus fiber metal is recommended as a buffer layer to compensate for the different coefficients of thermal expansion. This elastic interlayer, made of matted and sintered metallic fibers, is actually a woven mat with 90% of the volume taken up by porosity. Nickel alloys, Hastelloy-X, Inconel-600, FeCrAlSi, and FeCrAlY can be used for the interlayer. However, the last two alloys provide optimum oxidation and high-temperature-corrosion resistance. The interlayers are attached to the component metal by normal brazing, while the ceramic is attached by plasma spraying. The bond between the ceramic and the interlayer is formed by the penetration and condensation of the sprayed powder in the interlayer pores. This joining method can be most efficiently used in high-pressure-turbine seals; combustion-chamber facings; facings of slag hoppers and boosted steamboiler combustion chambers; coal gasification equipment, including valves, cyclones, transport main pipelines and exhaust valves; cylinder heads; and diesel engine pistons.

Legchilin, P.F.

1985-01-01T23:59:59.000Z

474

Wick for metal vapor laser  

DOE Patents [OSTI]

An improved wick for a metal vapor laser is made of a refractory metal cylinder, preferably molybdenum or tungsten for a copper laser, which provides the wicking surface. Alternately, the inside surface of the ceramic laser tube can be metalized to form the wicking surface. Capillary action is enhanced by using wire screen, porous foam metal, or grooved surfaces. Graphite or carbon, in the form of chunks, strips, fibers or particles, is placed on the inside surface of the wick to reduce water, reduce metal oxides and form metal carbides.

Duncan, David B. (Livermore, CA)

1992-01-01T23:59:59.000Z

475

The Influence of MSI (Metal-Support Interactions) and the Solvent in Liquid-Phase Reactions  

SciTech Connect (OSTI)

Results were repeatedly obtained that were consistent with a hypothesis proposed at the beginning of this program, i.e., due to Metal-Support Interactions (MSI), unique active sites can be created in the metal-support interfacial region to enhance activity and improve selectivity in certain types of reactions, especially those involving the hydrogenation of carbonyl and unsaturated C=C bonds. Higher turnover frequencies (TOF-molecule/s/site) and increased selectivity for C=O bond versus C=C bond hydrogenation was established in the hydrogenation reactions of: acetone, crotonaldehyde, acetophenone, phenylethanol, acetylcyclohexane, benzaldehyde, benzyl alcohol, phenylacetaldehyde and citral over Pt/TiO{sub 2} MSI catalysts. Higher rates of hydrogenation benzene, toluene and xylene could be obtained over certain supported Pt and Pd catalysts. Au/TiO{sub 2} catalysts were developed that were active for CO hydrogenation at subambient temperatures. The influence of support and metal crystallite size were established for the adsorption of H{sub 2}, CO and O{sub 2} on families of Pt and Pd catalysts.

Vannice, M. A.

2003-05-30T23:59:59.000Z

476

Resummed thermodynamic perturbation theory for bond cooperativity in associating fluids with small bond angles: Effects of steric hindrance and ring formation  

SciTech Connect (OSTI)

In this paper we develop a thermodynamic perturbation theory for two site associating fluids which exhibit bond cooperativity (system energy is non-pairwise additive). We include both steric hindrance and ring formation such that the equation of state is bond angle dependent. Here, the bond angle is the angle separating the centers of the two association sites. As a test, new Monte Carlo simulations are performed, and the theory is found to accurately predict the internal energy as well as the distribution of associated clusters as a function of bond angle.

Marshall, Bennett D., E-mail: bennettd1980@gmail.com; Haghmoradi, Amin; Chapman, Walter G. [Department of Chemical and Biomolecular Engineering, Rice University, 6100 S. Main, Houston, Texas 77005 (United States)] [Department of Chemical and Biomolecular Engineering, Rice University, 6100 S. Main, Houston, Texas 77005 (United States)

2014-04-28T23:59:59.000Z

477

Synthesis, structure, and bonding in K12Au21Sn4. A polar intermetallic compound with dense Au20 and open AuSn4 layers  

SciTech Connect (OSTI)

The new phase K{sub 12}Au{sub 21}Sn{sub 4} has been synthesized by direct reaction of the elements at elevated temperatures. Single crystal X-ray diffraction established its orthorhombic structure, space group Pmmn (No. 59), a = 12.162(2); b = 18.058(4); c = 8.657(2) {angstrom}, V = 1901.3(7) {angstrom}{sup 3}, and Z = 2. The structure consists of infinite puckered sheets of vertex-sharing gold tetrahedra (Au{sub 20}) that are tied together by thin layers of alternating four-bonded-Sn and -Au atoms (AuSn{sub 4}). Remarkably, the dense but electron-poorer blocks of Au tetrahedra coexist with more open and saturated Au-Sn layers, which are fragments of a zinc blende type structure that maximize tetrahedral heteroatomic bonding outside of the network of gold tetrahedra. LMTO band structure calculations reveal metallic properties and a pseudogap at 256 valence electrons per formula unit, only three electrons fewer than in the title compound and at a point at which strong Au-Sn bonding is optimized. Additionally, the tight coordination of the Au framework atoms by K plays an important bonding role: each Au tetrahedra has 10 K neighbors and each K atom has 8-12 Au contacts. The appreciably different role of the p element Sn in this structure from that in the triel members in K{sub 3}Au{sub 5}In and Rb{sub 2}Au{sub 3}Tl appears to arise from its higher electron count which leads to better p-bonding (valence electron concentrations = 1.32 versus 1.22).

Li, Bin; Kim, Sung-Jin; Miller, Gordon J.; and Corbett, John D.

2009-10-29T23:59:59.000Z

478

The Breathing Orbital Valence Bond Method in Diffusion Monte Carlo: C-H Bond Dissociation ofAcetylene  

SciTech Connect (OSTI)

This study explores the use of breathing orbital valence bond (BOVB) trial wave functions for diffusion Monte Carlo (DMC). The approach is applied to the computation of the carbon-hydrogen (C-H) bond dissociation energy (BDE) of acetylene. DMC with BOVB trial wave functions yields a C-H BDE of 132.4 {+-} 0.9 kcal/mol, which is in excellent accord with the recommended experimental value of 132.8 {+-} 0.7 kcal/mol. These values are to be compared with DMC results obtained with single determinant trial wave functions, using Hartree-Fock orbitals (137.5 {+-} 0.5 kcal/mol) and local spin density (LDA) Kohn-Sham orbitals (135.6 {+-} 0.5 kcal/mol).

Domin, D.; Braida, Benoit; Lester Jr., William A.

2008-05-30T23:59:59.000Z

479

Development of a Fluxless Flip Chip Bonding Process for Optical Military Electronics  

SciTech Connect (OSTI)

As military electronics tend to become lighter, smaller, thinner, and lower cost, the use of flip chip technology is becoming more common place to meet system requirements, yet survive environments. This paper explores the development of an optical flip chip application and details the selection/qualification of the substrate. The selected assembly consists of a procured 1x12 Vertical Cavity Surface Emitting Laser (VCSEL) die, having 80um diameter eutectic AuSn solder bumps at 250um pitch and flip chip bonded to a .006” thick 99.6% alumina substrate with .006” diameter thru holes and metallized with 500Å WTi, under minimum 2.0-3.0?m (80-120?”) thin film deposited Au. An 8 run, 3 factor, 2 level Full Factorial Design of Experiments (DOE) was completed on procured detector arrays and procured ceramic substrates using the Suss Microtec FC150. The optimum settings for the peak temperature, peak time and final die z-height were selected using the ANOVA results and interaction plots. Additional studies were completed to qualify in-house produced substrates. An epoxy glob-top encapsulant was selected to dissipate stress on the flip chip solder joints and to enhance thermal shock performance.

Girardi, Michael

2007-11-11T23:59:59.000Z

480

On the bonding nature of electron states for the Fe-Mo double perovskite  

SciTech Connect (OSTI)

The electronic transport as well as the effect of an external magnetic field has been investigated on manganese-based materials, spinels and perovskites. Potential applications of double perovskites go from magnetic sensors to electrodes in solid-oxide fuel cells; besides the practical interests, it is known that small changes in composition modify radically the physical properties of double perovskites. We have studied the Sr{sub 2}FeMoO{sub 6} double perovskite compound (SFMO) using first-principles density functional theory. The calculations were done within the generalized gradient approximation (GGA) scheme with the Perdew-Burke-Ernzerhof (PBE) functional. We have made a detailed analysis of each electronic state and the charge density maps around the Fermi level. For the electronic properties of SFMO it was used a primitive cell, for which we found the characteristic half-metallic behavior density of states composed by e{sub g} and t{sub 2g} electrons from Fe and Mo atoms. Those peaks were tagged as bonding or antibonding around the Fermi level at both, valence and conduction bands.

Carvajal, E.; Cruz-Irisson, M. [ESIME-Culhuacán, Instituto Politécnico Nacional, Av. Santa Ana 1000, C.P. 04430, México, D.F. (Mexico); Oviedo-Roa, R. [Programa de Investigación en Ingeniería Molecular, Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas Norte 152, C.P. 07730, México, D.F. (Mexico); Navarro, O. [Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, A.P. 70-360, 04510, México, D.F. (Mexico)

2014-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "metal oxo bonds" 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.


481

High Activity of Ce1-xNixO2-y for H2 Production through Ethanol Steam Reforming: Tuning Catalytic Performance through Metal-Oxide Interactions  

SciTech Connect (OSTI)

The importance of the oxide: Ce{sub 0.8}Ni{sub 0.2}O{sub 2-y} is an excellent catalyst for ethanol steam reforming. Metal-oxide interactions perturb the electronic properties of the small particles of metallic nickel present in the catalyst under the reaction conditions and thus suppress any methanation activity. The nickel embedded in ceria induces the formation of O vacancies, which facilitate cleavage of the OH bonds in ethanol and water.

G Zhou; L Barrio; S Agnoli; S Senanayake; J Evans; A Kubacka; M Estrella; J Hanson; A Martinez-Arias; et al.

2011-12-31T23:59:59.000Z

482

Serpentine metal gasket  

DOE Patents [OSTI]

A metallic seal or gasket for use in the joining of cryogenic fluid conduits, the seal or gasket having a generally planar and serpentine periphery defining a central aperture. According to a preferred embodiment, the periphery has at least two opposing elongated serpentine sides and two opposing arcuate ends joining the opposing elongated serpentine sides and is of a hexagonal cross-section.

Rothgeb, Timothy Moore (Norfolk, VA); Reece, Charles Edwin (Yorktown, VA)

2009-06-02T23:59:59.000Z

483

Ductile transplutonium metal alloys  

DOE Patents [OSTI]

Alloys of Ce with transplutonium metals such as Am, Cm, Bk and Cf have properties making them highly suitable as souces of the transplutonium element, e.g., for use in radiation detector technology or as radiation sources. The alloys are ductile, homogeneous, easy to prepare and have a fairly high density.

Conner, W.V.

1981-10-09T23:59:59.000Z

484

Method of producing adherent metal oxide coatings on metallic surfaces  

DOE Patents [OSTI]

Provided is a process of producing an adherent synthetic corrosion product (sludge) coating on metallic surfaces. The method involves a chemical reaction between a dry solid powder mixture of at least one reactive metal oxide with orthophosphoric acid to produce a coating in which the particles are bound together and the matrix is adherent to the metallic surface.

Lane, Michael H. (Clifton Park, NY); Varrin, Jr., Robert D. (McLean, VA)

2001-01-01T23:59:59.000Z

485

Speed of Sound in metal Speed of Sound in metal  

E-Print Network [OSTI]

the metal rod and metal bar. 2. Acquire a metal bar or rod and measure its mass. Use the meter stick and measure and record the length in meters. Use the vernier calipers and measure the other dimensionBar Select the Smart Tool. Position the Smart tool so that the vertical line bisects the pulse. The (x

Yu, Jaehoon

486

Purification of alkali metal nitrates  

DOE Patents [OSTI]

A process is disclosed for removing heavy metal contaminants from impure alkali metal nitrates containing them. The process comprises mixing the impure nitrates with sufficient water to form a concentrated aqueous solution of the impure nitrates, adjusting the pH of the resulting solution to within the range of between about 2 and about 7, adding sufficient reducing agent to react with heavy metal contaminants within said solution, adjusting the pH of the solution containing reducing agent to effect precipitation of heavy metal impurities and separating the solid impurities from the resulting purified aqueous solution of alkali metal nitrates. The resulting purified solution of alkali metal nitrates may be heated to evaporate water therefrom to produce purified molten alkali metal nitrate suitable for use as a heat transfer medium. If desired, the purified molten form may be granulated and cooled to form discrete solid particles of alkali metal nitrates.

Fiorucci, Louis C. (Hamden, CT); Gregory, Kevin M. (Woodridge, IL)

1985-05-14T23:59:59.000Z

487

Upgrading platform using alkali metals  

DOE Patents [OSTI]

A process for removing sulfur, nitrogen or metals from an oil feedstock (such as heavy oil, bitumen, shale oil, etc.) The method involves reacting the oil feedstock with an alkali metal and a radical capping substance. The alkali metal reacts with the metal, sulfur or nitrogen content to form one or more inorganic products and the radical capping substance reacts with the carbon and hydrogen content to form a hydrocarbon phase. The inorganic products may then be separated out from the hydrocarbon phase.

Gordon, John Howard

2014-09-09T23:59:59.000Z

488

Electroless metal plating of plastics  

DOE Patents [OSTI]

Process for plating main group metals on aromatic polymers is carried out by the use of a nonaqueous solution of a salt of an alkali metal in a positive valence state and a main group metal in a negative valence state with contact between the solution and polymer providing a redox reaction causing the deposition of the main group metal and the reduction of the polymer. Products from the process exhibit useful decorative and electrical properties.

Krause, Lawrence J. (Chicago, IL)

1986-01-01T23:59:59.000Z

489

Electroless metal plating of plastics  

DOE Patents [OSTI]

Process for plating main group metals on aromatic polymers is carried out by the use of a nonaqueous solution of a salt of an alkali metal in a positive valence state and a main group metal in a negative valence state with contact between the solution and polymer providing a redox reaction causing the deposition of the main group metal and the reduction of the polymer. Products from the process exhibit useful decorative and electrical properties.

Krause, L.J.

1982-09-20T23:59:59.000Z

490

Electroless metal plating of plastics  

DOE Patents [OSTI]

Process for plating main group metals on aromatic polymers is carried out by the use of a nonaqueous solution of a salt of an alkali metal in a positive valence state and a main group metal in a negative valence state with contact between the solution and polymer providing a redox reaction causing the deposition of the main group metal and the reduction of the polymer. Products from the process exhibit useful decorative and electrical properties.

Krause, Lawrence J. (Chicago, IL)

1984-01-01T23:59:59.000Z

491

Methods of recovering alkali metals  

DOE Patents [OSTI]

Approaches for alkali metal extraction, sequestration and recovery are described. For example, a method of recovering alkali metals includes providing a CST or CST-like (e.g., small pore zeolite) material. The alkali metal species is scavenged from the liquid mixture by the CST or CST-like material. The alkali metal species is extracted from the CST or CST-like material.

Krumhansl, James L; Rigali, Mark J

2014-03-04T23:59:59.000Z

492

Metals processing control by counting molten metal droplets  

DOE Patents [OSTI]

Apparatus and method for controlling metals processing (e.g., ESR) by melting a metal ingot and counting molten metal droplets during melting. An approximate amount of metal in each droplet is determined, and a melt rate is computed therefrom. Impedance of the melting circuit is monitored, such as by calculating by root mean square a voltage and current of the circuit and dividing the calculated current into the calculated voltage. Analysis of the impedance signal is performed to look for a trace characteristic of formation of a molten metal droplet, such as by examining skew rate, curvature, or a higher moment.

Schlienger, Eric (Albuquerque, NM); Robertson, Joanna M. (Safford, AZ); Melgaard, David (Albuquerque, NM); Shelmidine, Gregory J. (Tijeras, NM); Van Den Avyle, James A. (Corrales, NM)

2000-01-01T23:59:59.000Z

493

Inert electrode containing metal oxides, copper and noble metal  

DOE Patents [OSTI]

A cermet composite material is made by treating at an elevated temperature a mixture comprising a compound of iron and a compound of at least one other metal, together with an alloy or mixture of copper and a noble metal. The alloy or mixture preferably comprises particles having an interior portion containing more copper than noble metal and an exterior portion containing more noble metal than copper. The noble metal is preferably silver. The cermet composite material preferably includes alloy phase portions and a ceramic phase portion. At least part of the ceramic phase portion preferably has a spinel structure.

Ray, Siba P. (Murrysville, PA); Woods, Robert W. (New Kensington, PA); Dawless, Robert K. (Monroeville, PA); Hosler, Robert B. (Sarver, PA)

2001-01-01T23:59:59.000Z

494

Inert electrode containing metal oxides, copper and noble metal  

DOE Patents [OSTI]

A cermet composite material is made by treating at an elevated temperature a mixture comprising a compound of iron and a compound of at least one other metal, together with an alloy or mixture of copper and a noble metal. The alloy or mixture preferably comprises particles having an interior portion containing more copper than noble metal and an exterior portion containing more noble metal than copper. The noble metal is preferably silver. The cermet composite material preferably includes alloy phase portions and a ceramic phase portion. At least part of the ceramic phase portion preferably has a spinel structure.

Ray, Siba P. (Murrysville, PA); Woods, Robert W. (New Kensington, PA); Dawless, Robert K. (Monroeville, PA); Hosler, Robert B. (Sarver, PA)

2000-01-01T23:59:59.000Z

495

Fabrication of metallic glass structures  

DOE Patents [OSTI]

Amorphous metal powders or ribbons are fabricated into solid shapes of appreciable thickness by the application of compaction energy. The temperature regime wherein the amorphous metal deforms by viscous flow is measured. The metal powders or ribbons are compacted within the temperature regime.

Cline, C.F.

1983-10-20T23:59:59.000Z

496

Integrated decontamination process for metals  

DOE Patents [OSTI]

An integrated process for decontamination of metals, particularly metals that are used in the nuclear energy industry contaminated with radioactive material. The process combines the processes of electrorefining and melt refining to purify metals that can be decontaminated using either electrorefining or melt refining processes.

Snyder, Thomas S. (Oakmont, PA); Whitlow, Graham A. (Murrysville, PA)

1991-01-01T23:59:59.000Z

497

The Bond Between CO and Cp?3U in Cp?3U(CO) involves Backbondingfrom the Cp'3U Ligand-based Orbitals of ?pi-Symmetry, where Cp' Represents a Substituted Cyclopentadienyl Ligand.  

SciTech Connect (OSTI)

The experimental CO stretching frequencies in the 1:1 adducts between (C5H5-nRn)3U and CO range from 1976 cm-1 in (C5H4SiMe3)3U(CO) to 1900 cm-1 in (C5HMe4)3U(CO). The origin of the large difference between the stretching frequencies in free (2143 cm-1) and coordinated CO and the large effect the substituents on the cyclopentadienyl ligands play in the difference is explored by DFT calculations with a small core effective core potential in which 32 electrons on uranium are explicitly treated. The results of these calculations, along with a NBO analysis, show that a sigma-bond is formed between CO and an empty sigma-orbital on the Cp'3U fragment composed of f sigma and d sigma parentage orbitals. The backbonding interaction, which results in lowering the CO stretching frequency, does not originate from non-bonding metal-based orbitals but from the filled ligand-based orbitals of pi-symmetry that are used for bonding in the Cp'3U fragment. This model, which is different from the backbonding model used in the d-transition metal complexes, rationalizes the large substituent effect in the 5f-metal complexes.

Maron, Laurent; Eisenstein, Odile; Andersen, Richard

2009-06-16T23:59:59.000Z

498

Bond strength of cementitious borehole plugs in welded tuff  

SciTech Connect (OSTI)

Axial loads on plugs or seals in an underground repository due to gas, water pressures and temperature changes induced subsequent to waste and plug emplacement lead to shear stresses at the plug/rock contact. Therefore, the bond between the plug and rock is a critical element for the design and effectiveness of plugs in boreholes, shafts or tunnels. This study includes a systematic investigation of the bond strength of cementitious borehole plugs in welded tuff. Analytical and numerical analysis of borehole plug-rock stress transfer mechanics is performed. The interface strength and deformation are studied as a function of Young`s modulus ratio of plug and rock, plug length and rock cylinder outside-to-inside radius ratio. The tensile stresses in and near an axially loaded plug are analyzed. The frictional interface strength of an axially loaded borehole plug, the effect of axial stress and lateral external stress, and thermal effects are also analyzed. Implications for plug design are discussed. The main conclusion is a strong recommendation to design friction plugs in shafts, drifts, tunnels or boreholes with a minimum length to diameter ratio of four. Such a geometrical design will reduce tensile stresses in the plug and in the host rock to a level which should minimize the risk of long-term deterioration caused by excessive tensile stresses. Push-out tests have been used to determine the bond strength by applying an axial load to cement plugs emplaced in boreholes in welded tuff cylinders. A total of 130 push-out tests have been performed as a function of borehole size, plug length, temperature, and degree of saturation of the host tuff. The use of four different borehole radii enables evaluation of size effects. 119 refs., 42 figs., 20 tabs.

Akgun, H.; Daemen, J.J.K. [Arizona Univ., Tucson, AZ (USA). Dept. of Mining and Geological Engineering

1991-02-01T23:59:59.000Z

499

FLUIDIC: Metal Air Recharged  

ScienceCinema (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-04-02T23:59:59.000Z

500

FLUIDIC: Metal Air Recharged  

SciTech Connect (OSTI)

Fluidic, with the help of ARPA-E funding, has developed and deployed the world's first proven high cycle life metal air battery. Metal air technology, often used in smaller scale devices like hearing aids, has the lowest cost per electron of any rechargeable battery storage in existence. Deploying these batteries for grid reliability is competitive with pumped hydro installations while having the advantages of a small footprint. Fluidic's battery technology allows utilities and other end users to store intermittent energy generated from solar and wind, as well as maintain reliable electrical delivery during power outages. The batteries are manufactured in the US and currently deployed to customers in emerging markets for cell tower reliability. As they continue to add customers, they've gained experience and real world data that will soon be leveraged for US grid reliability.

Friesen, Cody

2014-03-07T23:59:59.000Z