National Library of Energy BETA

Sample records for material shows stable

  1. New stable Re-B phases for ultra-hard materials (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    New stable Re-B phases for ultra-hard materials Citation Details In-Document Search Title: New stable Re-B phases for ultra-hard materials As a distinct class of ultra-hard...

  2. Three-dimensional CTOA and constraint effects during stable tearing in a thin-sheet material

    SciTech Connect (OSTI)

    Dawicke, D.S.; Newman, J.C. Jr.; Bigelow, C.A.

    1995-12-31

    A small strain theory, three-dimensional elastic-plastic finite element analysis was used to simulate fracture in thin sheet 2024-T3 aluminum alloy in the T-L orientation. Both straight and tunneled cracks were modeled. The tunneled crack front shapes as a function of applied stress were obtained from the fracture surface of tested specimens. The stable crack growth behavior was measured at the specimen surface as a function of applied stress. The fracture simulation modeled the crack tunneling and extension as a function of applied stress. The results indicated that the global constrain factor, {alpha}{sub g}, initially dropped during stable crack growth. After peak applied stress was achieved, {alpha}{sub g}, initially dropped during stable crack growth. After peak applied stress was achieved, {alpha}{sub g}, began to increase slightly. The effect of crack front shape on {alpha}{sub g} was small, but the crack front shape did greatly influence the local constraint and through-thickness crack-tip opening angle (CTOA) behavior. The surface values of CTOA for the tunneled crack front model agreed well with experimental measurements, showing the same initial decrease from high values during the initial 3 mm of crack growth at the specimen`s surface. At the same time, the interior CTOA values increased from low angles. After the initial stable tearing region, the CTOA was constant through the thickness. The three-dimensional analysis appears to confirm the potential of CTOA as a two-dimensional fracture criterion.

  3. Low cost stable air electrode material for high temperature solid oxide electrolyte electrochemical cells

    DOE Patents [OSTI]

    Kuo, Lewis J. H. (Monroeville, PA); Singh, Prabhakar (Export, PA); Ruka, Roswell J. (Churchill Boro, PA); Vasilow, Theodore R. (Penn Township, PA); Bratton, Raymond J. (Delmont, PA)

    1997-01-01

    A low cost, lanthanide-substituted, dimensionally and thermally stable, gas permeable, electrically conductive, porous ceramic air electrode composition of lanthanide-substituted doped lanthanum manganite is provided which is used as the cathode in high temperature, solid oxide electrolyte fuel cells and generators. The air electrode composition of this invention has a much lower fabrication cost as a result of using a lower cost lanthanide mixture, either a natural mixture or an unfinished lanthanide concentrate obtained from a natural mixture subjected to incomplete purification, as the raw material in place of part or all of the higher cost individual lanthanum. The mixed lanthanide primarily contains a mixture of at least La, Ce, Pr, and Nd, or at least La, Ce, Pr, Nd and Sm in its lanthanide content, but can also include minor amounts of other lanthanides and trace impurities. The use of lanthanides in place of some or all of the lanthanum also increases the dimensional stability of the air electrode. This low cost air electrode can be fabricated as a cathode for use in high temperature, solid oxide fuel cells and generators.

  4. Low cost stable air electrode material for high temperature solid oxide electrolyte electrochemical cells

    DOE Patents [OSTI]

    Kuo, L.J.H.; Singh, P.; Ruka, R.J.; Vasilow, T.R.; Bratton, R.J.

    1997-11-11

    A low cost, lanthanide-substituted, dimensionally and thermally stable, gas permeable, electrically conductive, porous ceramic air electrode composition of lanthanide-substituted doped lanthanum manganite is provided which is used as the cathode in high temperature, solid oxide electrolyte fuel cells and generators. The air electrode composition of this invention has a much lower fabrication cost as a result of using a lower cost lanthanide mixture, either a natural mixture or an unfinished lanthanide concentrate obtained from a natural mixture subjected to incomplete purification, as the raw material in place of part or all of the higher cost individual lanthanum. The mixed lanthanide primarily contains a mixture of at least La, Ce, Pr, and Nd, or at least La, Ce, Pr, Nd and Sm in its lanthanide content, but can also include minor amounts of other lanthanides and trace impurities. The use of lanthanides in place of some or all of the lanthanum also increases the dimensional stability of the air electrode. This low cost air electrode can be fabricated as a cathode for use in high temperature, solid oxide fuel cells and generators. 4 figs.

  5. Stable and Efficient White OLEDs Based on a Single Emissive Material...

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

    Identification and Mitigation of Droop Mechanism in GaN-Based LEDs Materials and Designs for High-Efficacy LED Light Engines Next-Generation "Giant" Quantum Dots: ...

  6. Electro-optical properties of photochemically stable polymer-stabilized blue-phase material

    SciTech Connect (OSTI)

    Chojnowska, O. D?browski, R.; Yan, J.; Chen, Y.; Wu, S. T.

    2014-12-07

    Polymer-stabilized blue-phase liquid crystal (BPLC) comprising fluorinated compounds with high resistivity and photochemical stability is demonstrated. The Kerr constant, driving voltage, and response time of this BPLC are measured using an in-plane switching liquid crystal cell. At 20?°C, the measured total response time is faster than 0.7?ms and Kerr constant is 2?nm/V{sup 2}. This fluorinated BPLC material is a promising candidate for next-generation photonic and display devices, because it can be used in active matrix addressed devices.

  7. Employee Show

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

    Where Science Inspires Art Fermilab Employee Art Show 2015 Exhibition Dates -September 18, 2015 November 30, 2015 Reception - September 23, 2015 5 7pm Eligibility: Any current...

  8. Light Show

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

    9 Lightning - Nature's Light Show Lightning provides one of nature's most spectacular displays of energy. Though fascinating to observe, lightning can be dangerous and deadly. Protecting ARM instruments from lightning damage is vital. Putting equipment worth millions of dollars into open fields (Photo: NOAA) ARM Facilities Newsletter is published by Argonne National Laboratory, a multiprogram laboratory operated by The University of Chicago under contract W-31-109-Eng-38 with the U.S. Department

  9. Materials

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

    Materials Materials Access to Hopper Phase II (Cray XE6) If you are a current NERSC user, you are enabled to use Hopper Phase II. Use your SSH client to connect to Hopper II:...

  10. Synthesis Method for Stable Colloids of "Naked" Metal Nanocrystals...

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

    Analysis Advanced Materials Advanced Materials Find More Like This Return to Search Synthesis Method for Stable Colloids of "Naked" Metal Nanocrystals Oak Ridge National...

  11. Ultra-stable Gold Nanocatalysts - Energy Innovation Portal

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

    Advanced Materials Advanced Materials Find More Like This Return to Search Ultra-stable Gold Nanocatalysts Oak Ridge National Laboratory Contact ORNL About This Technology...

  12. Water-Stable Zirconium-Based Metal-Organic Framework Material with High-Surface Area and Gas-Storage Capacities

    SciTech Connect (OSTI)

    Gutov, OV; Bury, W; Gomez-Gualdron, DA; Krungleviciute, V; Fairen-Jimenez, D; Mondloch, JE; Sarjeant, AA; Al-Juaid, SS; Snurr, RQ; Hupp, JT; Yildirim, T; Farha, OK

    2014-08-14

    We designed, synthesized, and characterized a new Zr-based metal-organic framework material, NU-1100, with a pore volume of 1.53 ccg(-1) and Brunauer-Emmett-Teller (BET) surface area of 4020 m(2)g(-1); to our knowledge, currently the highest published for Zr-based MOFs. CH4/CO2/H-2 adsorption isotherms were obtained over a broad range of pressures and temperatures and are in excellent agreement with the computational predictions. The total hydrogen adsorption at 65 bar and 77 K is 0.092 gg(-1), which corresponds to 43 gL(-1). The volumetric and gravimetric methane-storage capacities at 65 bar and 298 K are approximately 180 v(STP)/v and 0.27 gg(-1), respectively.

  13. Stable isotope enrichment

    SciTech Connect (OSTI)

    Egle, Brian

    2014-07-14

    Brian Egle is working to increase the nation's capacity to produce stable isotopes for use including medicine, industry and national security.

  14. Stable isotope enrichment

    ScienceCinema (OSTI)

    Egle, Brian

    2014-07-15

    Brian Egle is working to increase the nation's capacity to produce stable isotopes for use including medicine, industry and national security.

  15. Stable isotope studies

    SciTech Connect (OSTI)

    Ishida, T.

    1992-01-01

    The research has been in four general areas: (1) correlation of isotope effects with molecular forces and molecular structures, (2) correlation of zero-point energy and its isotope effects with molecular structure and molecular forces, (3) vapor pressure isotope effects, and (4) fractionation of stable isotopes. 73 refs, 38 figs, 29 tabs.

  16. Stable glow discharge detector

    DOE Patents [OSTI]

    Koo, Jackson C.; Yu, Conrad M.

    2004-05-18

    A highly sensitive electronic ion cell for the measurement of trace elements in He carrier gas which involves glow discharge. A constant wave (CW) stable glow discharge detector which is controlled through a biased resistor, can detect the change of electron density caused by impurities in the He carrier gas by many orders of magnitude larger than that caused by direct ionization or electron capture. The stable glow discharge detector utilizes a floating pseudo-electrode to form a probe in or near the plasma and a solid rod electrode. By using this probe, the large variation of electron density due to trace amounts of impurities can be directly measured. The solid rod electrode provides greater stability and thus easier alignment.

  17. Residential propane prices stable

    Gasoline and Diesel Fuel Update (EIA)

    propane prices stable The average retail price for propane is $2.37 per gallon. That's down 4-tenths of a penny from a week ago, based on the U.S. Energy Information Administration's weekly residential heating fuel survey. Propane prices in the Midwest region averaged $1.89 a gallon. Down 2-tenths of a cent from last week. This is Amerine Woodyard, with EIA, in Washington.

  18. ARM - Instrument - stable

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

    govInstrumentsstable Documentation Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument : Stabilized Platform (STABLE) For ship-based deployments, some instruments require actively stabilized platforms to compensate for the ship's motion, especially rotations around the long axis of the ship (roll), short axis (pitch), and, for some instruments, vertical axis (yaw). ARM currently employs two types of stabilized platforms: one electrically

  19. Stable radiometal antibody immunoconjugates

    DOE Patents [OSTI]

    Mease, R.C.; Srivastava, S.C.; Gestin, J.F.

    1994-08-02

    The present invention relates to new rigid chelating structures, to methods for preparing these materials, and to their use in preparing radiometal labeled immunoconjugates. These new chelates include cyclohexyl EDTA monohydride, the trans forms of cyclohexyl DTPA and TTHA, and derivatives of these cyclohexyl polyaminocarboxylate materials. No Drawings

  20. Stable radiometal antibody immunoconjugates

    DOE Patents [OSTI]

    Mease, Ronnie C. (Coram, NY); Srivastava, Suresh C. (Setauket, NY); Gestin, Jean-Francois (Oudon, FR)

    1994-01-01

    The present invention relates to new rigid chelating structures, to methods for preparing these materials, and to their use in preparing radiometal labeled immunoconjugates. These new chelates include cyclohexyl EDTA monohydride, the trans forms of cyclohexyl DTPA and TTHA, and derivatives of these cyclohexyl polyaminocarboxylate materials.

  1. Bi-stable optical actuator

    DOE Patents [OSTI]

    Holdener, Fred R. (Tracy, CA); Boyd, Robert D. (Livermore, CA)

    2000-01-01

    The present invention is a bi-stable optical actuator device that is depowered in both stable positions. A bearing is used to transfer motion and smoothly transition from one state to another. The optical actuator device may be maintained in a stable position either by gravity or a restraining device.

  2. Sandia Energy - New Material Tests Show Biaxial Laminate Creep...

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

    Recent industry observations of damage occurring earlier than expected in the blade panel regions (Figure 1) were brought to the attention of researchers at Sandia National...

  3. Guidelines for Supplier, Vendor Shows

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

    Guidelines for Supplier, Vendor Shows Guidelines for Supplier/Vendor or Professional Local Trade Fairs/Shows As a premier national research and development laboratory, LANL seeks to do business with qualified companies that offer value and high quality products and services. Contact Small Business Office (505) 667-4419 Email LANL does not allow suppliers/vendors or professional organizations to hold trade fairs/shows on site. If you wish to hold a trade fair/show to demonstrate your

  4. Backstage at the Daily Show

    Broader source: Energy.gov [DOE]

    Backstage footage from Secretary Chu's appearance on the Daily Show where he discuses the green room candy dish and possible lighting considerations.

  5. Show Tips | Department of Energy

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

    Show Tips Show Tips These guidelines are designed to help you prepare for exhibiting. Be sure that you are fully prepared before the event begins. Get Your Badge You will need a badge to get into the hall to set up the exhibit. This will either be a work pass or your exhibitor badge. You can pick this up on-site, usually at a registration desk. Survey the Situation Check that all items shipped to, and ordered for the show have arrived. Review your service orders. Set Up Display Designated staff

  6. Ultratough, Thermally Stable Polycrystalline Diamond/Silicon...

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

    Ultratough, Thermally Stable Polycrystalline DiamondSilicon Carbide Nanocomposites for Drill Bits Ultratough, Thermally Stable Polycrystalline DiamondSilicon Carbide ...

  7. Materials Videos

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

    Materials Videos Materials

  8. Stable Spheromaks with Profile Control

    SciTech Connect (OSTI)

    Fowler, T K; Jayakumar, R

    2008-01-29

    A spheromak equilibrium with zero edge current is shown to be stable to both ideal MHD and tearing modes that normally produce Taylor relaxation in gun-injected spheromaks. This stable equilibrium differs from the stable Taylor state in that the current density j falls to zero at the wall. Estimates indicate that this current profile could be sustained by non-inductive current drive at acceptable power levels. Stability is determined using the NIMROD code for linear stability analysis. Non-linear NIMROD calculations with non-inductive current drive could point the way to improved fusion reactors.

  9. Diesel prices remain fairly stable

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

    Diesel prices remain fairly stable The U.S. average retail price for on-highway diesel fuel slightly fell to 3.85 a gallon on Monday. That's down 6-tenths of a penny from a week...

  10. Method of producing stable metal oxides and chalcogenides and power source

    DOE Patents [OSTI]

    Doddapaneni, Narayan (10516 Royal Birkdale, N.E., Albuquerque, NM 87111); Ingersoll, David (5824 Mimosa Pl., N.E., Albuquerque, NM 87111)

    1996-01-01

    A method of making chemically and electrochemically stable oxides or other chalcogenides for use as cathodes for power source applications, and of making batteries comprising such materials.

  11. ShowMe3D

    Energy Science and Technology Software Center (OSTI)

    2012-01-05

    ShowMe3D is a data visualization graphical user interface specifically designed for use with hyperspectral image obtained from the Hyperspectral Confocal Microscope. The program allows the user to select and display any single image from a three dimensional hyperspectral image stack. By moving a slider control, the user can easily move between images of the stack. The user can zoom into any region of the image. The user can select any pixel or region from themore » displayed image and display the fluorescence spectrum associated with that pixel or region. The user can define up to 3 spectral filters to apply to the hyperspectral image and view the image as it would appear from a filter-based confocal microscope. The user can also obtain statistics such as intensity average and variance from selected regions.« less

  12. Argonne Site Map Showing CNM Location | Argonne National Laboratory

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

    Argonne Site Map Showing CNM Location Find your way to the Center for Nanoscale Materials on the Argonne National Laboratory campus. PDF icon CNM-Argonne_map

  13. Advanced Thermally Stable Jet Fuels

    SciTech Connect (OSTI)

    A. Boehman; C. Song; H. H. Schobert; M. M. Coleman; P. G. Hatcher; S. Eser

    1998-01-01

    The Penn State program in advanced thermally stable jet fuels has five components: 1) development of mechanisms of degradation and solids formation; 2) quantitative measurement of growth of sub-micrometer and micrometer-sized particles during thermal stressing; 3) characterization of carbonaceous deposits by various instrumental and microscopic methods; 4) elucidation of the role of additives in retarding the formation of carbonaceous solids; and 5) assessment of the potential of producing high yields of cycloalkanes and hydroaromatics from coal.

  14. Stable and responsive fluorescent carbon nanotube silica gels (Conference)

    Office of Scientific and Technical Information (OSTI)

    | SciTech Connect Conference: Stable and responsive fluorescent carbon nanotube silica gels Citation Details In-Document Search Title: Stable and responsive fluorescent carbon nanotube silica gels Here we report a general route to prepare silica nanocomposite gels doped with fluorescent single walled carbon nanotubes (SWNT). We show that tetramethylorthosilicate (TMOS) vapors can be used to gel an aqueous suspension of surfactant-wrapped SWNT while maintaining fluorescence from the

  15. Quantifying uncertainty in stable isotope mixing models

    SciTech Connect (OSTI)

    Davis, Paul; Syme, James; Heikoop, Jeffrey; Fessenden-Rahn, Julianna; Perkins, George; Newman, Brent; Chrystal, Abbey E.; Hagerty, Shannon B.

    2015-05-19

    Mixing models are powerful tools for identifying biogeochemical sources and determining mixing fractions in a sample. However, identification of actual source contributors is often not simple, and source compositions typically vary or even overlap, significantly increasing model uncertainty in calculated mixing fractions. This study compares three probabilistic methods, SIAR [Parnell et al., 2010] a pure Monte Carlo technique (PMC), and Stable Isotope Reference Source (SIRS) mixing model, a new technique that estimates mixing in systems with more than three sources and/or uncertain source compositions. In this paper, we use nitrate stable isotope examples (?15N and ?18O) but all methods tested are applicable to other tracers. In Phase I of a three-phase blind test, we compared methods for a set of six-source nitrate problems. PMC was unable to find solutions for two of the target water samples. The Bayesian method, SIAR, experienced anchoring problems, and SIRS calculated mixing fractions that most closely approximated the known mixing fractions. For that reason, SIRS was the only approach used in the next phase of testing. In Phase II, the problem was broadened where any subset of the six sources could be a possible solution to the mixing problem. Results showed a high rate of Type I errors where solutions included sources that were not contributing to the sample. In Phase III some sources were eliminated based on assumed site knowledge and assumed nitrate concentrations, substantially reduced mixing fraction uncertainties and lowered the Type I error rate. These results demonstrate that valuable insights into stable isotope mixing problems result from probabilistic mixing model approaches like SIRS. The results also emphasize the importance of identifying a minimal set of potential sources and quantifying uncertainties in source isotopic composition as well as demonstrating the value of additional information in reducing the uncertainty in calculated mixing fractions.

  16. Quantifying uncertainty in stable isotope mixing models

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Davis, Paul; Syme, James; Heikoop, Jeffrey; Fessenden-Rahn, Julianna; Perkins, George; Newman, Brent; Chrystal, Abbey E.; Hagerty, Shannon B.

    2015-05-19

    Mixing models are powerful tools for identifying biogeochemical sources and determining mixing fractions in a sample. However, identification of actual source contributors is often not simple, and source compositions typically vary or even overlap, significantly increasing model uncertainty in calculated mixing fractions. This study compares three probabilistic methods, SIAR [Parnell et al., 2010] a pure Monte Carlo technique (PMC), and Stable Isotope Reference Source (SIRS) mixing model, a new technique that estimates mixing in systems with more than three sources and/or uncertain source compositions. In this paper, we use nitrate stable isotope examples (δ15N and δ18O) but all methods testedmore » are applicable to other tracers. In Phase I of a three-phase blind test, we compared methods for a set of six-source nitrate problems. PMC was unable to find solutions for two of the target water samples. The Bayesian method, SIAR, experienced anchoring problems, and SIRS calculated mixing fractions that most closely approximated the known mixing fractions. For that reason, SIRS was the only approach used in the next phase of testing. In Phase II, the problem was broadened where any subset of the six sources could be a possible solution to the mixing problem. Results showed a high rate of Type I errors where solutions included sources that were not contributing to the sample. In Phase III some sources were eliminated based on assumed site knowledge and assumed nitrate concentrations, substantially reduced mixing fraction uncertainties and lowered the Type I error rate. These results demonstrate that valuable insights into stable isotope mixing problems result from probabilistic mixing model approaches like SIRS. The results also emphasize the importance of identifying a minimal set of potential sources and quantifying uncertainties in source isotopic composition as well as demonstrating the value of additional information in reducing the uncertainty in calculated mixing fractions.« less

  17. Materials Physics | Materials Science | NREL

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

    Physics A photo of laser light rays going in various directions atop a corrugated metal substrate In materials physics, NREL focuses on realizing materials that transcend the present constraints of photovoltaic (PV) and solid-state lighting technologies. Through materials growth and characterization, coupled with theoretical modeling, we seek to understand and control fundamental electronic and optical processes in semiconductors. Capabilities Optimizing New Materials An illustration showing

  18. Dimensionally stable metallic hydride composition

    DOE Patents [OSTI]

    Heung, Leung K. (Aiken, SC)

    1994-01-01

    A stable, metallic hydride composition and a process for making such a composition. The composition comprises a uniformly blended mixture of a metal hydride, kieselguhr, and a ballast metal, all in the form of particles. The composition is made by subjecting a metal hydride to one or more hydrogen absorption/desorption cycles to disintegrate the hydride particles to less than approximately 100 microns in size. The particles are partly oxidized, then blended with the ballast metal and the kieselguhr to form a uniform mixture. The mixture is compressed into pellets and calcined. Preferably, the mixture includes approximately 10 vol. % or more kieselguhr and approximately 50 vol. % or more ballast. Metal hydrides that can be used in the composition include Zr, Ti, V, Nb, Pd, as well as binary, tertiary, and more complex alloys of La, Al, Cu, Ti, Co, Ni, Fe, Zr, Mg, Ca, Mn, and mixtures and other combinations thereof. Ballast metals include Al, Cu and Ni.

  19. Color stable manganese-doped phosphors

    DOE Patents [OSTI]

    Lyons, Robert Joseph; Setlur, Anant Achyut; Deshpande, Anirundha Rajendra; Grigorov, Ljudmil Slavchev

    2014-04-29

    A lighting apparatus capable of emitting white light includes a semiconductor light source; and a phosphor material radiationally coupled to the light source. The phosphor material includes a color-stable Mn.sup.+4 doped phosphor prepared by a process including providing a phosphor of formula I; A.sub.x[MF.sub.y]:Mn.sup.+4 I and contacting the phosphor in particulate form with a saturated solution of a composition of formula II in aqueous hydrofluoric acid; A.sub.x[MF.sub.y]; II wherein A is Li, Na, K, Rb, Cs, NR.sub.4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; x is the absolute value of the charge of the [MF.sub.y] ion; and y is 5, 6 or 7. In particular embodiments, M is Si, Ge, Sn, Ti, Zr, or a combination thereof.

  20. Thermally stable crystalline mesoporous metal oxides with substantially uniform pores

    DOE Patents [OSTI]

    Wiesner, Ulrich; Orilall, Mahendra Christopher; Lee, Jinwoo; DiSalvo, Jr., Francis J

    2015-01-27

    Highly crystalline metal oxide-carbon composites, as precursors to thermally stable mesoporous metal oxides, are coated with a layer of amorphous carbon. Using a `one-pot` method, highly crystalline metal oxide-carbon composites are converted to thermally stable mesoporous metal oxides, having highly crystalline mesopore walls, without causing the concomitant collapse of the mesostructure. The `one-pot` method uses block copolymers with an sp or sp 2 hybridized carbon containing hydrophobic block as structure directing agents which converts to a sturdy, amorphous carbon material under appropriate heating conditions, providing an in-situ rigid support which maintains the pores of the oxides intact while crystallizing at temperatures as high as 1000 deg C. A highly crystalline metal oxide-carbon composite can be heated to produce a thermally stable mesoporous metal oxide consisting of a single polymorph.

  1. Method of producing stable metal oxides and chalcogenides and power source

    DOE Patents [OSTI]

    Doddapaneni, N.; Ingersoll, D.

    1996-10-22

    A method is described for making chemically and electrochemically stable oxides or other chalcogenides for use as cathodes for power source applications, and of making batteries comprising such materials. 6 figs.

  2. Advanced thermally stable jet fuels

    SciTech Connect (OSTI)

    Schobert, H.H.

    1999-01-31

    The Pennsylvania State University program in advanced thermally stable coal-based jet fuels has five broad objectives: (1) Development of mechanisms of degradation and solids formation; (2) Quantitative measurement of growth of sub-micrometer and micrometer-sized particles suspended in fuels during thermal stressing; (3) Characterization of carbonaceous deposits by various instrumental and microscopic methods; (4) Elucidation of the role of additives in retarding the formation of carbonaceous solids; (5) Assessment of the potential of production of high yields of cycloalkanes by direct liquefaction of coal. Future high-Mach aircraft will place severe thermal demands on jet fuels, requiring the development of novel, hybrid fuel mixtures capable of withstanding temperatures in the range of 400--500 C. In the new aircraft, jet fuel will serve as both an energy source and a heat sink for cooling the airframe, engine, and system components. The ultimate development of such advanced fuels requires a thorough understanding of the thermal decomposition behavior of jet fuels under supercritical conditions. Considering that jet fuels consist of hundreds of compounds, this task must begin with a study of the thermal degradation behavior of select model compounds under supercritical conditions. The research performed by The Pennsylvania State University was focused on five major tasks that reflect the objectives stated above: Task 1: Investigation of the Quantitative Degradation of Fuels; Task 2: Investigation of Incipient Deposition; Task 3: Characterization of Solid Gums, Sediments, and Carbonaceous Deposits; Task 4: Coal-Based Fuel Stabilization Studies; and Task 5: Exploratory Studies on the Direct Conversion of Coal to High Quality Jet Fuels. The major findings of each of these tasks are presented in this executive summary. A description of the sub-tasks performed under each of these tasks and the findings of those studies are provided in the remainder of this volume (Sections 1 through 5).

  3. Show Me Ethanol LLC | Open Energy Information

    Open Energy Info (EERE)

    Show Me Ethanol LLC Jump to: navigation, search Name: Show Me Ethanol, LLC Place: Carrollton, Missouri Zip: 64633 Product: Developing an ethanol project in Carrollton, Missouri....

  4. Consumer Electronics Show 2013 Highlights Sustainable Energy...

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

    Consumer Electronics Show 2013 Highlights Sustainable Energy Technology Consumer Electronics Show 2013 Highlights Sustainable Energy Technology January 18, 2013 - 4:52pm Addthis ...

  5. Post-Show Tips | Department of Energy

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

    At no time should materials be shipping back in the container with the exhibit. Shipping ... Make sure you have FedEx labels for each containercarton and a FedEx account number for ...

  6. Exotic stable cesium polynitrides at high pressure

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Peng, Feng; Han, Yunxia; Liu, Hanyu; Yao, Yansun

    2015-11-19

    New polynitrides containing metastable forms of nitrogen are actively investigated as potential high energy-density materials. Using a structure search method based on the CALYPSO methodology, we investigated the stable stoichiometries and structures of cesium polynitrides at high pressures. Along with the CsN3, we identified five new stoichiometric compounds (Cs3N, Cs2N, CsN, CsN2, and CsN5) with interesting structures that may be experimentally synthesizable at modest pressures (i.e., less than 50 GPa). Nitrogen species in the predicted structures have various structural forms ranging from single atom (N) to highly endothermic molecules (N2, N3 , N4, N5, N6) and chains (N∞). Polymeric chainsmore » of nitrogen were found in the high-pressure C2/c phase of CsN2. This structure contains a substantially high content of single N-N bonds that exceeds the previously known nitrogen chains in pure forms, and also exhibit metastability at ambient conditions. We also identified a very interesting CsN crystal that contains novel N44- anion. In conclusion, to our best knowledge, this is the first time a charged N4 species being reported. Results of the present study suggest that it is possible to obtain energetic polynitrogens in main-group nitrides under high pressure.« less

  7. Stable Flats LLC | Open Energy Information

    Open Energy Info (EERE)

    to build the first multi-family LEED (Leadership in Energy & Environmental Design) Gold certified structure in the country. References: Stable Flats LLC1 This article is a...

  8. The Paris Motor Show | Department of Energy

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

    The Paris Motor Show The Paris Motor Show October 4, 2010 - 9:39am Addthis David Sandalow at the Paris Auto Show | DOE photo David Sandalow at the Paris Auto Show | DOE photo David Sandalow David Sandalow Former Under Secretary of Energy (Acting) and Assistant Secretary for Policy & International Affairs At the Paris Motor Show today, electric cars are everywhere. Chevrolet is showing off the Volt, its plug-in hybrid due in U.S. showrooms this December. (Motown music blared as a Chevy rep

  9. The stable K0 giant star ? Gem

    SciTech Connect (OSTI)

    Gray, David F.

    2014-12-01

    A nine-season spectroscopic study of the photosphere of ? Gem (K0 III) shows this low-luminosity giant to be stable, with no effective temperature variations above ?2 K, and no secular temperature variations over the 2002-2010 time span above 0.2 K per year. The radial-velocity variations are consistent with an orbital variation of ?40 m s{sup –1}. The projected rotation rate is found to be 1.70 ± 0.20 km s{sup –1} with a macroturbulence dispersion of 4.53 ± 0.10 km s{sup –1}. The third-signature plot is also invariant and shows a granulation velocity gradient 20% smaller than the solar gradient. The absolute shift of the third-signature plot gives a blueshift-corrected radial velocity of 3385 ± 70 m s{sup –1}. Bisector mapping of the Fe I ?6253 line yields a flux deficit of 12% ± 1% in area, somewhat smaller than for other giants, but the shape and the position of the peak at 4.8 km s{sup –1} is consistent with other giants. All of the investigated photospheric parameters are consistent with ? Gem being a low-luminosity giant in agreement with its absolute magnitude.

  10. Thermally stable nanoparticles on supports

    DOE Patents [OSTI]

    Roldan Cuenya, Beatriz; Naitabdi, Ahmed R.; Behafarid, Farzad

    2012-11-13

    An inverse micelle-based method for forming nanoparticles on supports includes dissolving a polymeric material in a solvent to provide a micelle solution. A nanoparticle source is dissolved in the micelle solution. A plurality of micelles having a nanoparticle in their core and an outer polymeric coating layer are formed in the micelle solution. The micelles are applied to a support. The polymeric coating layer is then removed from the micelles to expose the nanoparticles. A supported catalyst includes a nanocrystalline powder, thin film, or single crystal support. Metal nanoparticles having a median size from 0.5 nm to 25 nm, a size distribution having a standard deviation .ltoreq.0.1 of their median size are on or embedded in the support. The plurality of metal nanoparticles are dispersed and in a periodic arrangement. The metal nanoparticles maintain their periodic arrangement and size distribution following heat treatments of at least 1,000.degree. C.

  11. Laser research shows promise for cancer treatment

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

    Cancer treatment Laser research shows promise for cancer treatment Scientists have observed for the first time how a laser penetrates dense, electron-rich plasma to generate ions....

  12. Stable thin film resistors using double layer structure

    SciTech Connect (OSTI)

    Jia, Q.X.; Lee, H.J.; Ma, E.; Anderson, W.A.; Collins, F.M.

    1995-06-01

    Highly stable bilayer thin film resistors, which consist of an underlying layer of tantalum nitride and of a capping layer of ruthenium oxide, were developed by taking advantage of the desired characteristics of two different materials in a single system. The resistors fabricated in such a way were highly stable under power loading or thermal cycling. Resistors with one digit temperature coefficient of resistance could be easily controlled by the layer thickness ratio of the tantalum nitride to the ruthenium oxide and the {ital ex} {ital situ} annealing temperature or duration. Auger electron spectroscopy depth profile on the thin films indicates that the ruthenium oxide layer is well defined for the as-deposited form. Nevertheless, interdiffusion takes place after thermal treatment of the bilayer which is used to tune the temperature coefficient of resistance and to stabilize the resistance of the resistors.

  13. Bi-stable optical element actuator device

    DOE Patents [OSTI]

    Holdener, Fred R. (Tracy, CA); Boyd, Robert D. (Livermore, CA)

    2002-01-01

    The present invention is a bistable optical element actuator device utilizing a powered means to move an actuation arm, to which an optical element is attached, between two stable positions. A non-powered means holds the actuation arm in either of the two stable positions. The optical element may be a electromagnetic (EM) radiation or particle source, an instrument, or EM radiation or particle transmissive reflective or absorptive elements. A bearing is used to transfer motion and smoothly transition the actuation arm between the two stable positions.

  14. 2013 Washington Auto Show | Department of Energy

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

    Washington Auto Show 2013 Washington Auto Show Addthis 1 of 10 While at the Washington Auto Show, Energy Secretary Steven Chu visited Nissan to see the 2013 Leaf. | Photo courtesy of Sarah Gerrity, Energy Department. Date taken: 2013-01-31 13:50 2 of 10 The new Nissan Leaf is being built at the company's Smyrna, Tennessee, Vehicle Assembly Plant -- helping to cut the price of its electric vehicle. | Photo courtesy of Sarah Gerrity, Energy Department. Date taken: 2013-01-31 13:49 3 of 10 Energy

  15. Pre-Show Checklist | Department of Energy

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

    Pre-Show Checklist Pre-Show Checklist Before you leave for your event, you should check that you are prepared and ready to go. This checklist was designed to remind you of the steps you are required to take before leaving for your event. Exhibit (Booth) Space and EERE Display Reserved Reserve exhibit space with the show as soon as possible. The longer you wait, the more expensive exhibit space will be. The purchase of a 10' x 10' exhibit space (typically, the smallest exhibit space available) is

  16. 2016 Washington Auto Show | Department of Energy

    Energy Savers [EERE]

    Washington Auto Show 2016 Washington Auto Show Addthis 1 of 20 Energy Secretary Ernest Moniz sits in the driver's seat of the all-electric Chevrolet Bolt at the Washington Auto Show. When it debuts on the road later this year, the Bolt will offer drivers about 200 miles of electric range. Image: Simon Edelman, Energy Department Date taken: 2016-01-21 09:45 2 of 20 The 2016 next-generation Chevrolet Volt builds on the success of its previous version, which was the first plug-in hybrid electric

  17. 2015 Washington Auto Show | Department of Energy

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

    Washington Auto Show 2015 Washington Auto Show Addthis Moniz Delivers Keynote Remarks 1 of 10 Moniz Delivers Keynote Remarks Secretary Moniz touted the Department's investments in advanced vehicle technologies, infrastructure and manufacturing. Photo by Sarah Gerrity Date taken: 2015-01-22 04:33 Secretary Moniz Announces More than $55M in Fuel-Efficient Vehicle Funding 2 of 10 Secretary Moniz Announces More than $55M in Fuel-Efficient Vehicle Funding The funding opportunities will go towards a

  18. A MATERIAL WORLD Tailoring Materials

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

    WINTER* 2000-2001 A MATERIAL WORLD Tailoring Materials for the Future A QUARTERLY RESEARCH & DEVELOPMENT JOURNAL VOLUME 2, NO. 4 ALSO: New Materials for Microsystems Predictive Modeling Meets the Challenge S A N D I A T E C H N O L O G Y ON THE COVER: Bonnie Mckenzie operates a dual beam Focused Ion Beam/Scanning Electron Microscope (FIB/SEM). The image on the computer screen shows a cross section of a radiation-hardened device. The cross section was rendered with the FIB/SEM and allowed the

  19. Stable, high-efficiency amorphous silicon solar cells with low hydrogen content

    SciTech Connect (OSTI)

    Fortmann, C.M.; Hegedus, S.S. )

    1992-12-01

    Results and conclusions obtained during a research program of the investigation of amorphous silicon and amorphous silicon based alloy materials and solar cells fabricated by photo-chemical vapor and glow discharge depositions are reported. Investigation of the effects of the hydrogen content in a-si:H i-layers in amorphous silicon solar cells show that cells with lowered hydrogen content i-layers are more stable. A classical thermodynamic formulation of the Staebler-Wronski effect has been developed for standard solar cell operating temperatures and illuminations. Methods have been developed to extract a lumped equivalent circuit from the current voltage characteristic of a single junction solar cell in order to predict its behavior in a multijunction device.

  20. Detroit Auto Show 2012 | Department of Energy

    Office of Environmental Management (EM)

    Detroit Auto Show 2012 Detroit Auto Show 2012 Addthis 1 of 10 Energy Secretary Steven Chu with Chrysler Chief Executive Sergio Marchionne. Image: Hantz Leger (Energy Department Contractor) Date taken: 2012-01-10 00:00 2 of 10 Energy Secretary Steven Chu examines the Dodge Dart's four cylinder, 2.4-liter, 184 horsepower engine block. Image: Hantz Leger (Energy Department Contractor) Date taken: 2012-01-10 00:00 3 of 10 Energy Secretary Steven Chu gets behind the wheel of the new 2013 Dodge Dart.

  1. Geothermal Energy Featured on NBC's Today Show

    Broader source: Energy.gov [DOE]

    In Iceland, there are five major geothermal power plants which produce about 26% (2006) of the country's electricity. In addition, geothermal heating meets the heating and hot water requirements for around 87% of the nation's buildings. As part of its "Ends of the Earth" series, NBC's Today Show presented a feature on the use of geothermal energy in Iceland.

  2. Gasoline price shows small increase (Short version)

    Gasoline and Diesel Fuel Update (EIA)

    shows small increase (Short version) The U.S. average retail price for regular gasoline rose to $3.32 a gallon on Monday. That's up 1.2 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration.

  3. Gasoline price shows small increase (short version)

    Gasoline and Diesel Fuel Update (EIA)

    Short version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices rose 4/10 of a cent to $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration.

  4. Stable benzimidazole-incorporated porous polymer network for carbon capture

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

    with high efficiency and low cost | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Stable benzimidazole-incorporated porous polymer network for carbon capture with high efficiency and low cost Previous Next List Muwei Zhang, Zachary Perry, Jinhee Park, Hong-Cai Zhou, Polymer 55, 335-339 (2014) DOI: 10.1016/j.polymer.2013.09.029 1-s2.0-S0032386113008951-fx1.jpg Abstract: Porous Polymer Networks (PPNs) are an emerging category of advanced porous materials

  5. Ferroelectric nanostructure having switchable multi-stable vortex states

    DOE Patents [OSTI]

    Naumov, Ivan I. (Fayetteville, AR); Bellaiche, Laurent M. (Fayetteville, AR); Prosandeev, Sergey A. (Fayetteville, AR); Ponomareva, Inna V. (Fayetteville, AR); Kornev, Igor A. (Fayetteville, AR)

    2009-09-22

    A ferroelectric nanostructure formed as a low dimensional nano-scale ferroelectric material having at least one vortex ring of polarization generating an ordered toroid moment switchable between multi-stable states. A stress-free ferroelectric nanodot under open-circuit-like electrical boundary conditions maintains such a vortex structure for their local dipoles when subject to a transverse inhomogeneous static electric field controlling the direction of the macroscopic toroidal moment. Stress is also capable of controlling the vortex's chirality, because of the electromechanical coupling that exists in ferroelectric nanodots.

  6. Gasoline price shows small increase (long version)

    Gasoline and Diesel Fuel Update (EIA)

    long version) The U.S. average retail price for regular gasoline showed little movement from last week. Prices rose 4/10 of a cent to $3.30 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the New England States, at 3.52 a gallon, down 1/10 of a penny from a week ago. Prices were lowest at 2.87 a gallon in the Rocky Mountain States, with the biggest regional price drop at close to 7 cents.

  7. Voltage sensor and dielectric material

    DOE Patents [OSTI]

    Yakymyshyn, Christopher Paul; Yakymyshyn, Pamela Jane; Brubaker, Michael Allen

    2006-10-17

    A voltage sensor is described that consists of an arrangement of impedance elements. The sensor is optimized to provide an output ratio that is substantially immune to changes in voltage, temperature variations or aging. Also disclosed is a material with a large and stable dielectric constant. The dielectric constant can be tailored to vary with position or direction in the material.

  8. Fissile material detector

    DOE Patents [OSTI]

    Ivanov, Alexander I. (Dubna, RU); Lushchikov, Vladislav I. (Dubna, RU); Shabalin, Eugeny P. (Dubna, RU); Maznyy, Nikita G. (Dubna, RU); Khvastunov, Michael M. (Dubna, RU); Rowland, Mark (Alamo, CA)

    2002-01-01

    A detector for fissile materials which provides for integrity monitoring of fissile materials and can be used for nondestructive assay to confirm the presence of a stable content of fissile material in items. The detector has a sample cavity large enough to enable assay of large items of arbitrary configuration, utilizes neutron sources fabricated in spatially extended shapes mounted on the endcaps of the sample cavity, incorporates a thermal neutron filter insert with reflector properties, and the electronics module includes a neutron multiplicity coincidence counter.

  9. Stable Isotope Enrichment Capabilities at ORNL

    SciTech Connect (OSTI)

    Egle, Brian; Aaron, W Scott; Hart, Kevin J

    2013-01-01

    The Oak Ridge National Laboratory (ORNL) and the US Department of Energy Nuclear Physics Program have built a high-resolution Electromagnetic Isotope Separator (EMIS) as a prototype for reestablishing a US based enrichment capability for stable isotopes. ORNL has over 60 years of experience providing enriched stable isotopes and related technical services to the international accelerator target community, as well as medical, research, industrial, national security, and other communities. ORNL is investigating the combined use of electromagnetic and gas centrifuge isotope separation technologies to provide research quantities (milligram to several kilograms) of enriched stable isotopes. In preparation for implementing a larger scale production facility, a 10 mA high-resolution EMIS prototype has been built and tested. Initial testing of the device has simultaneously collected greater than 98% enriched samples of all the molybdenum isotopes from natural abundance feedstock.

  10. Low work function, stable thin films

    DOE Patents [OSTI]

    Dinh, Long N. (Concord, CA); McLean, II, William (Oakland, CA); Balooch, Mehdi (Berkeley, CA); Fehring, Jr., Edward J. (Dublin, CA); Schildbach, Marcus A. (Livermore, CA)

    2000-01-01

    Generation of low work function, stable compound thin films by laser ablation. Compound thin films with low work function can be synthesized by simultaneously laser ablating silicon, for example, and thermal evaporating an alkali metal into an oxygen environment. For example, the compound thin film may be composed of Si/Cs/O. The work functions of the thin films can be varied by changing the silicon/alkali metal/oxygen ratio. Low work functions of the compound thin films deposited on silicon substrates were confirmed by ultraviolet photoelectron spectroscopy (UPS). The compound thin films are stable up to 500.degree. C. as measured by x-ray photoelectron spectroscopy (XPS). Tests have established that for certain chemical compositions and annealing temperatures of the compound thin films, negative electron affinity (NEA) was detected. The low work function, stable compound thin films can be utilized in solar cells, field emission flat panel displays, electron guns, and cold cathode electron guns.

  11. Modified Yeast Show Improved Xylose Fermentation and Toxin Tolerance -

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

    Energy Innovation Portal Show Improved Xylose Fermentation and Toxin Tolerance Great Lakes Bioenergy Research Center Contact GLBRC About This Technology Technology Marketing Summary Bleaching plant material with alkaline hydrogen peroxide (AHP) is an old process used for papermaking. Several decades ago researchers suggested that this method also could be used in biofuel production. The method involves treating switchgrass or corn stover with hydrogen peroxide under basic conditions.

  12. Stable doping of carbon nanotubes via molecular self assembly

    SciTech Connect (OSTI)

    Lee, B.; Chen, Y.; Podzorov, V.; Cook, A.; Zakhidov, A.

    2014-10-14

    We report a novel method for stable doping of carbon nanotubes (CNT) based on methods of molecular self assembly. A conformal growth of a self-assembled monolayer of fluoroalkyl trichloro-silane (FTS) at CNT surfaces results in a strong increase of the sheet conductivity of CNT electrodes by 60–300%, depending on the CNT chirality and composition. The charge carrier mobility of undoped partially aligned CNT films was independently estimated in a field-effect transistor geometry (~100 cm²V?¹s?¹). The hole density induced by the FTS monolayer in CNT sheets is estimated to be ~1.8 ×10¹?cm?². We also show that FTS doping of CNT anodes greatly improves the performance of organic solar cells. This large and stable doping effect, easily achieved in large-area samples, makes this approach very attractive for applications of CNTs in transparent and flexible electronics.

  13. Fixed points, stable manifolds, weather regimes, and their predictability

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Deremble, Bruno; D'Andrea, Fabio; Ghil, Michael

    2009-10-27

    In a simple, one-layer atmospheric model, we study the links between low-frequency variability and the model’s fixed points in phase space. The model dynamics is characterized by the coexistence of multiple ''weather regimes.'' To investigate the transitions from one regime to another, we focus on the identification of stable manifolds associated with fixed points. We show that these manifolds act as separatrices between regimes. We track each manifold by making use of two local predictability measures arising from the meteorological applications of nonlinear dynamics, namely, ''bred vectors'' and singular vectors. These results are then verified in the framework of ensemblemore » forecasts issued from clouds (ensembles) of initial states. The divergence of the trajectories allows us to establish the connections between zones of low predictability, the geometry of the stable manifolds, and transitions between regimes.« less

  14. Stable Free Radicals and Potential Implications for Health Effects...

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

    Stable Free Radicals and Potential Implications for Health Effects of Diesel Emissions Stable Free ... of Tissue Response to Inhaled 2007-Compliant Diesel Exhaust Iowa Needs Assessment

  15. PROJECT PROFILE: Stable Perovskite Solar Cells via Chemical Vapor...

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

    Stable Perovskite Solar Cells via Chemical Vapor Deposition PROJECT PROFILE: Stable Perovskite Solar Cells via Chemical Vapor Deposition Funding Opportunity: SuNLaMP SunShot ...

  16. Extremely stable bare hematite photoanode for solar water splitting...

    Office of Scientific and Technical Information (OSTI)

    Extremely stable bare hematite photoanode for solar water splitting Prev Next Title: Extremely stable bare hematite photoanode for solar water splitting Authors: Dias, Paula ; ...

  17. A Series of Highly Stable Mesoporous Metalloporphyrin Fe-MOFs...

    Office of Scientific and Technical Information (OSTI)

    A Series of Highly Stable Mesoporous Metalloporphyrin Fe-MOFs Citation Details In-Document Search Title: A Series of Highly Stable Mesoporous Metalloporphyrin Fe-MOFs Authors: ...

  18. Dynamically stable magnetic suspension/bearing system

    DOE Patents [OSTI]

    Post, R.F.

    1996-02-27

    A magnetic bearing system contains magnetic subsystems which act together to support a rotating element in a state of dynamic equilibrium. However, owing to the limitations imposed by Earnshaw`s Theorem, the magnetic bearing systems to be described do not possess a stable equilibrium at zero rotational speed. Therefore, mechanical stabilizers are provided, in each case, to hold the suspended system in equilibrium until its speed has exceeded a low critical speed where dynamic effects take over, permitting the achievement of a stable equilibrium for the rotating object. A state of stable equilibrium is achieved above a critical speed by use of a collection of passive elements using permanent magnets to provide their magnetomotive excitation. The magnetic forces exerted by these elements, when taken together, levitate the rotating object in equilibrium against external forces, such as the force of gravity or forces arising from accelerations. At the same time, this equilibrium is made stable against displacements of the rotating object from its equilibrium position by using combinations of elements that possess force derivatives of such magnitudes and signs that they can satisfy the conditions required for a rotating body to be stably supported by a magnetic bearing system over a finite range of those displacements. 32 figs.

  19. Dynamically stable magnetic suspension/bearing system

    DOE Patents [OSTI]

    Post, Richard F. (Walnut Creek, CA)

    1996-01-01

    A magnetic bearing system contains magnetic subsystems which act together to support a rotating element in a state of dynamic equilibrium. However, owing to the limitations imposed by Earnshaw's Theorem, the magnetic bearing systems to be described do not possess a stable equilibrium at zero rotational speed. Therefore, mechanical stabilizers are provided, in each case, to hold the suspended system in equilibrium until its speed has exceeded a low critical speed where dynamic effects take over, permitting the achievement of a stable equilibrium for the rotating object. A state of stable equilibrium is achieved above a critical speed by use of a collection of passive elements using permanent magnets to provide their magnetomotive excitation. The magnetic forces exerted by these elements, when taken together, levitate the rotating object in equilibrium against external forces, such as the force of gravity or forces arising from accelerations. At the same time, this equilibrium is made stable against displacements of the rotating object from its equilibrium position by using combinations of elements that possess force derivatives of such magnitudes and signs that they can satisfy the conditions required for a rotating body to be stably supported by a magnetic bearing system over a finite range of those displacements.

  20. Instrument for stable high temperature Seebeck coefficient and resistivity measurements under controlled oxygen partial pressure

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Ihlefeld, Jon F.; Brown-Shaklee, Harlan James; Sharma, Peter Anand

    2015-04-28

    The transport properties of ceramic materials strongly depend on oxygen activity, which is tuned by changing the partial oxygen pressure (pO2) prior to and during measurement. Within, we describe an instrument for highly stable measurements of Seebeck coefficient and electrical resistivity at temperatures up to 1300 K with controlled oxygen partial pressure. An all platinum construction is used to avoid potential materials instabilities that can cause measurement drift. Two independent heaters are employed to establish a small temperature gradient for Seebeck measurements, while keeping the average temperature constant and avoiding errors associated with pO2-induced drifts in thermocouple readings. Oxygen equilibriummore » is monitored using both an O2 sensor and the transient behavior of the resistance as a proxy. A pO2 range of 10-25–100 atm can be established with appropriate gas mixtures. Seebeck measurements were calibrated against a high purity platinum wire, Pt/Pt–Rh thermocouple wire, and a Bi2Te3 Seebeck coefficient Standard Reference Material. To demonstrate the utility of this instrument for oxide materials we present measurements as a function of pO2 on a 1 % Nb-doped SrTiO3 single crystal, and show systematic changes in properties consistent with oxygen vacancy defect chemistry. Thus, an approximately 11% increase in power factor over a pO2 range of 10-19–10-8 atm at 973 K for the donor-doped single crystals is observed.« less

  1. Growing ordered and stable nanostructures on polyhedral nanocrystals

    SciTech Connect (OSTI)

    Lu, L. X.; Bharathi, M. S.; Zhang, Y. W.; Upmanyu, M.

    2014-12-22

    Using both theoretical analysis and phase field simulation, we reveal robust and facile self-assembly routes, which allow the growth of different stable and ordered nanostructures on various polyhedral nanocrystals (NCs) heteroepitaxially. Our studies show that by increasing the NC's size, transitions from formal growth to ordered quantum dots on the facets and further to ordered quantum dots on the corners take place. The predicted morphologies and their transitions are in excellent agreement with existing widely scattered experimental results. Our study presents a facile and potentially practical route for mass-producing hybrid NCs with well-defined size, shape, composition, and architecture.

  2. Gold-doped graphene: A highly stable and active electrocatalysts for the oxygen reduction reaction

    SciTech Connect (OSTI)

    Stolbov, Sergey Alcántara Ortigoza, Marisol

    2015-04-21

    In addressing the growing need of renewable and sustainable energy resources, hydrogen-fuel-cells stand as one of the most promising routes to transform the current energy paradigm into one that integrally fulfills environmental sustainability. Nevertheless, accomplishing this technology at a large scale demands to surpass the efficiency and enhance the cost-effectiveness of platinum-based cathodes, which catalyze the oxygen reduction reaction (ORR). In this work, our first-principles calculations show that Au atoms incorporated into graphene di-vacancies form a highly stable and cost-effective electrocatalyst that is, at the same time, as or more (dependently of the dopant concentration) active toward ORR than the best-known Pt-based electrocatalysts. We reveal that partial passivation of defected-graphene by gold atoms reduces the reactivity of C dangling bonds and increases that of Au, thus optimizing them for catalyzing the ORR and yielding a system of high thermodynamic and electrochemical stabilities. We also demonstrate that the linear relation among the binding energies of the reaction intermediates assumed in computational high-throughput material screening does not hold, at least for this non-purely transition-metal material. We expect Au-doped graphene to finally overcome the cathode-related challenge hindering the realization of hydrogen-fuel cells as the leading means of powering transportation and portable devices.

  3. Material Misfits

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

    Issues submit Material Misfits How well nanocomposite materials align at their interfaces determines what properties they have, opening broad new avenues of materials-science...

  4. Building America Solution Center Shows Builders How to Save Materials Costs While Saving Energy

    SciTech Connect (OSTI)

    Gilbride, Theresa L.

    2015-06-15

    This short article was prepared for the U.S. Department of Energy's Building America Update newsletter. The article identifies energy and cost-saving benefits of using advanced framing techniques in new construction identified by research teams working with the DOE's Building America program. The article also provides links to guides in the Building America Solution Center that give how-to instructions for builders who want to implement advanced framing construction. The newsletter is issued monthly and can be accessed at http://energy.gov/eere/buildings/building-america-update-newsletter

  5. Use of Stable Isotopes in Forensic Analysis of Microorganisms

    SciTech Connect (OSTI)

    Kreuzer-Martin, Helen W.; Hegg, Eric L.

    2012-01-18

    The use of isotopic signatures for forensic analysis of biological materials is well-established, and the same general principles that apply to interpretation of stable isotope content of C, N, O, and H apply to the analysis of microorganisms. Heterotrophic microorganisms derive their isotopic content from their growth substrates, which are largely plant and animal products, and the water in their culture medium. Thus the isotope signatures of microbes are tied to their growth environment. The C, N, O, and H isotope ratios of spores have been demonstrated to constitute highly discriminating signatures for sample matching. They can rule out specific samples of media and/or water as possible production media, and can predict isotope ratio ranges of the culture media and water used to produce a given sample. These applications have been developed and tested through analyses of approximately 250 samples of Bacillus subtilis spores and over 500 samples of culture media, providing a strong statistical basis for data interpretation. A Bayesian statistical framework for integrating stable isotope data with other types of signatures derived from microorganisms has been able to characterize the culture medium used to produce spores of various Bacillus species, leveraging isotopic differences in different medium types and demonstrating the power of data integration for forensic investigations.

  6. High-Efficiency and Stable White Organic Light-Emitting Diode Using a Single Emitter

    Broader source: Energy.gov [DOE]

    This project is demonstrating an efficient and stable white organic light-emitting diode (WOLED) using a single emitter on a planar glass substrate. Current WOLED technology requires the use of multiple emissive materials, which are expensive to manufacture and also generate color instability and color aging issues, affecting WOLED performance and operational lifetime.

  7. Research on stable, high-efficiency amorphous silicon multijunction modules

    SciTech Connect (OSTI)

    Ghosh, M.; DelCueto, J.: Kampas, F.; Xi, J. )

    1993-02-01

    This report describes results from the first phase of a three-phase contract for the development of stable, high-efficiency, same-band-gap, amorphous silicon (a-Si) multijunction photovoltaic (PV) modules. The program involved improving the properties of individual layers of semiconductor and non-semiconductor materials and small-area single-junction and multijunction devices, as well as the multijunction modules. The semiconductor materials research was performed on a-Si p, i, and n layers, and on microcrystalline silicon n layers. These were deposited using plasma-enhanced chemical vapor deposition. The non-semiconductor materials studied were tin oxide, for use as a transparent-conducting-oxide (TCO), and zinc oxide, for use as a back reflector and as a buffer layer between the TCO and the semiconductor layers. Tin oxide was deposited using atmospheric-pressure chemical vapor deposition. Zinc oxide was deposited using magnetron sputtering. The research indicated that the major challenge in the fabrication of a-Si multijunction PV modules is the contact between the two p-i-n cells. A structure that has low optical absorption but that also facilitates the recombination of electrons from the first p-i-n structure with holes from the second p-i-n structure is required. Non-semiconductor layers and a-Si semiconductor layers were tested without achieving the desired result.

  8. Color stable manganese-doped phosphors

    DOE Patents [OSTI]

    Lyons, Robert Joseph; Setlur, Anant Achyut; Deshpande, Anirudha Rajendra; Grigorov, Ljudmil Slavchev

    2012-08-28

    A process for preparing color stable Mn.sup.+4 doped phosphors includes providing a phosphor of formula I; A.sub.x[MF.sub.y]:Mn.sup.+4 I and contacting the phosphor in particulate form with a saturated solution of a composition of formula II in aqueous hydrofluoric acid; A.sub.x[MF.sub.y]; II wherein A is Li, Na, K, Rb, Cs, NR.sub.4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; x is the absolute value of the charge of the [MF.sub.y] ion; and y is 5, 6 or 7. In particular embodiments, M is Si, Ge, Sn, Ti, Zr, or a combination thereof. A lighting apparatus capable of emitting white light includes a semiconductor light source; and a phosphor composition radiationally coupled to the light source, and which includes a color stable Mn.sup.+4 doped phosphor.

  9. High Rate and Stable Cycling of Lithium Metal Anode (Journal...

    Office of Scientific and Technical Information (OSTI)

    High Rate and Stable Cycling of Lithium Metal Anode Citation Details In-Document Search Title: High Rate and Stable Cycling of Lithium Metal Anode Lithium (Li) metal is an ideal ...

  10. Construction of energy-stable projection-based reduced order...

    Office of Scientific and Technical Information (OSTI)

    Construction of energy-stable projection-based reduced order models Prev Next Title: Construction of energy-stable projection-based reduced order models Our paper aims to ...

  11. Hydrothermally Stable, Sulfur-Tolerant Platinum-Based Oxidation...

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

    Stable, Sulfur-Tolerant Platinum-Based Oxidation Catalysts via Surface Modification of SiO2 with TiO2 and ZrO2 Hydrothermally Stable, Sulfur-Tolerant Platinum-Based Oxidation...

  12. Preparation of stable crude oil transport emulsions

    SciTech Connect (OSTI)

    Gregoli, A.A.; Hamshar, J.A.; Olah, A.M.; Riley, C.J.; Rimmer, D.P.

    1988-02-16

    A process for preparing an oil-in-water emulsion for pipeline transmission is described comprising: (a) shearing and mixing statically, without any dynamic shearing and mixing preceding or following the shearing and mixing statically, a hydrocarbon with an emulsifying composition comprising water and a minor amount of an emulsifying agent at a temperature of from about 100/sup 0/F. to about 200/sup 0/F. to form an oil-in-water emulsion having a viscosity sufficiently low for pipeline transmission, wherein the amount of water in the oil-in-water emulsion is from about 15% to about 60% by weight, and wherein the emulsifying agent is used in an amount sufficient to assist in the formation of the oil-in-water emulsion that is sufficiently stable for pipeline transmission; and wherein the emulsifying agent comprises about 50 percent by weight of an ethoxylated nonyl phenol compound.

  13. Stable operating regime for traveling wave devices

    DOE Patents [OSTI]

    Carlsten, Bruce E. (Los Alamos, NM)

    2000-01-01

    Autophase stability is provided for a traveling wave device (TWD) electron beam for amplifying an RF electromagnetic wave in walls defining a waveguide for said electromagnetic wave. An off-axis electron beam is generated at a selected energy and has an energy noise inherently arising from electron gun. The off-axis electron beam is introduced into the waveguide. The off-axis electron beam is introduced into the waveguide at a second radius. The waveguide structure is designed to obtain a selected detuning of the electron beam. The off-axis electron beam has a velocity and the second radius to place the electron beam at a selected distance from the walls defining the waveguide, wherein changes in a density of the electron beam due to the RF electromagnetic wave are independent of the energy of the electron beam to provide a concomitant stable operating regime relative to the energy noise.

  14. Stable nonlinear Mach-Zehnder fiber switch

    DOE Patents [OSTI]

    Digonnet, Michel J. F. (Palo Alto, CA); Shaw, H. John (Palo Alto, CA); Pantell, Richard H. (Menlo Park, CA); Sadowski, Robert W. (Camp Doha, KW)

    1999-01-01

    An all-optical fiber switch is implemented within a short Mach-Zehnder interferometer configuration. The Mach-Zehnder switch is constructed to have a high temperature stability so as to minimize temperature gradients and other thermal effects which result in undesirable instability at the output of the switch. The Mach-Zehnder switch of the preferred embodiment is advantageously less than 2 cm in length between couplers to be sufficiently short to be thermally stable, and full switching is accomplished by heavily doping one or both of the arms between the couplers so as to provide a highly nonlinear region within one or both of the arms. A pump input source is used to affect the propagation characteristics of one of the arms to control the output coupling ratio of the switch. Because of the high nonlinearity of the pump input arm, low pump powers can be used, thereby alleviating difficulties and high cost associated with high pump input powers.

  15. Propulsion Materials

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

    Propulsion Materials FY 2013 Progress Report ii CONTENTS INTRODUCTION ....................................................................................................................................... 1 Project 18516 - Materials for H1ybrid and Electric Drive Systems ...................................................... 4 Agreement 19201 - Non-Rare Earth Magnetic Materials ............................................................................ 4 Agreement 23278 - Low-Cost

  16. Materials Science

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

    Materials Science /science-innovation/_assets/images/icon-science.jpg Materials Science National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place on Earth pursues a broader array of world-class scientific endeavors. Materials Physics and Applications» Materials Science and Technology» Institute for Materials Science» Materials Science Rob Dickerson uses a state-of-the-art transmission electron microscope at

  17. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Two Novel Ultra-Incompressible Materials Print Wednesday, 29 June 2011 00:00 Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds

  18. Reference Materials

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

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Biological and Environmental Research May 7-8, 2009 Invitation Workshop Invitation Letter...

  19. Reference Materials

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

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Basic Energy Sciences February 9-10, 2010 Official DOE Invitation Workshop Invitation...

  20. Encapsulated graphene field-effect transistors for air stable operation

    SciTech Connect (OSTI)

    Alexandrou, Konstantinos Kymissis, Ioannis; Petrone, Nicholas; Hone, James

    2015-03-16

    In this work, we report the fabrication of encapsulated graphene field effects transistors (GFETs) with excellent air stability operation in ambient environment. Graphene's 2D nature makes its electronics properties very sensitive to the surrounding environment, and thus, non-encapsulated graphene devices show extensive vulnerability due to unintentional hole doping from the presence of water molecules and oxygen limiting their performance and use in real world applications. Encapsulating GFETs with a thin layer of parylene-C and aluminum deposited on top of the exposed graphene channel area resulted in devices with excellent electrical performance stability for an extended period of time. Moisture penetration is reduced significantly and carrier mobility degraded substantially less when compared to non-encapsulated control devices. Our CMOS compatible encapsulation method minimizes the problems of environmental doping and lifetime performance degradation, enabling the operation of air stable devices for next generation graphene-based electronics.

  1. material protection

    National Nuclear Security Administration (NNSA)

    %2A en Office of Weapons Material Protection http:www.nnsa.energy.govaboutusourprogramsnonproliferationprogramofficesinternationalmaterialprotectionandcooperation-1

  2. material protection

    National Nuclear Security Administration (NNSA)

    %2A en Office of Weapons Material Protection http:nnsa.energy.govaboutusourprogramsnonproliferationprogramofficesinternationalmaterialprotectionandcooperation-1

  3. Materials Scientist

    Broader source: Energy.gov [DOE]

    Alternate Title(s):Materials Research Engineer; Metallurgical/Chemical Engineer; Product Development Manager;

  4. Stable N-CuInSe.sub.2 /iodide-iodine photoelectrochemical cell

    DOE Patents [OSTI]

    Cahen, David (Rehovot, IL); Chen, Yih W. (Lakewood, CO)

    1985-01-01

    In a photoelectrochemical solar cell, stable output and solar efficiency in excess of 10% are achieved with a photoanode of n-CuInSe.sub.2 electrode material and an iodine/iodide redox couple used in a liquid electrolyte. The photoanode is prepared by treating the electrode material by chemical etching, for example in Br.sub.2 /MeOH; heating the etched electrode material in air or oxygen; depositing a surface film coating of indium on the electrode material after the initial heating; and thereafter again heating the electrode material in air or oxygen to oxidize the indium. The electrolyte is treated by the addition of Cu.sup.+ or Cu.sup.2+ salts and In.sup.3+ salts.

  5. Stable n-CuInSe/sub 2/iodide-iodine photoelectrochemical cell

    DOE Patents [OSTI]

    Cahen, D.; Chen, Y.W.

    1984-09-20

    In a photoelectrochemical solar cell, stable output and solar efficiency in excess of 10% are achieved with a photoanode of n-CuInSe/sub 2/ electrode material and an iodine/iodide redox couple used in a liquid electrolyte. The photoanode is prepared by treating the electrode material by chemical etching, for example in Br/sub 2//MeOH; heating the etched electrode material in air or oxygen; depositing a surface film coating of indium on the electrode material after the initial heating; and thereafter again heating the electrode material in air or oxygen to oxidize the indium. The electrolyte is treated by the addition of Cu/sup +/ or Cu/sup 2 +/ salts and in In/sup 3 +/ salts.

  6. Stable blue phosphorescent organic light emitting devices

    DOE Patents [OSTI]

    Forrest, Stephen R.; Thompson, Mark; Giebink, Noel

    2014-08-26

    Novel combination of materials and device architectures for organic light emitting devices is provided. An organic light emitting device, is provided, having an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer includes a host and a phosphorescent emissive dopant having a peak emissive wavelength less than 500 nm, and a radiative phosphorescent lifetime less than 1 microsecond. Preferably, the phosphorescent emissive dopant includes a ligand having a carbazole group.

  7. Institute for Materials Science

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

    Materials Science Institute for Materials Science x

  8. Ultratough, Thermally Stable Polycrystalline Diamond/Silicon Carbide Nanocomposites for Drill Bits

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

    Ultratough, Thermally Stable Polycrystalline Diamond/Silicon Carbide Nanocomposites for Drill Bits Synthesis, Characterization, and Application of Nanostructured Diamond/ Silicon Carbide Composites for Improved Drill Bit Performance Industrial drilling, mining, cutting, and grinding make heavy use of superhard materials with superior wear resistance. In the oil and gas drilling industry, the use of polycrystalline diamond compact (PDC) drill bits has become increasingly common, with PDC drill

  9. Unexpected Stable Two-dimensional Silicon Phosphides with Different Stoichiometries

    SciTech Connect (OSTI)

    Huang, Bing; Zhuang, Houlong; Yoon, Mina; Wei, Su-Huai; Sumpter, Bobby G

    2015-01-01

    The discovery of stable two-dimensional, earth-abundant, semiconducting materials is of great interest and may impact future electronic technologies. By combining global structural prediction and first-principles calculations, we have theoretically discovered several previously unknown semiconducting silicon phosphides (SixPy) monolayers, which could be formed stably at the stoichiometries of y/x1. Unexpectedly, some of these compounds, i.e., P-6m2 Si1P1 and Pm Si1P2, have comparable or even lower formation enthalpies than their previously known bulk allotropes. The band gaps (Eg) of SixPy compounds can be dramatically tuned in an extremely wide range (0< Eg < 3 eV) by simply changing the number of layers or applying an in-plane strain. Moreover, we find that carrier doping can drive the ground state of C2/m Si1P3 from a nonmagnetic state into a robust half-metallic spin-polarized state, originating from its unique valence band structure, which can extend the use of Si-related compounds for spintronics.

  10. Reference Materials

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

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Basic Energy Sciences February 9-10, 2010 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors Last edited: 2016-02-01 08:07:17

  11. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    feature called the buttress that may play an important role in dynein's mechanical cycle. Yeast Yields Enable Protein Study The transportation of materials around a cell is...

  12. Topology-Guided Design and Syntheses of Highly Stable Mesoporous...

    Office of Scientific and Technical Information (OSTI)

    Topology-Guided Design and Syntheses of Highly Stable Mesoporous Porphyrinic Zirconium ... Citation Details In-Document Search Title: Topology-Guided Design and Syntheses of Highly ...

  13. Performance of a Thermally Stable Polyaromatic Hydrocarbon in...

    Office of Scientific and Technical Information (OSTI)

    Performance of a Thermally Stable Polyaromatic Hydrocarbon in a Simulated Concentrating Solar Power Loop Citation Details In-Document Search Title: Performance of a Thermally...

  14. Materials Science Applications

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

    Science Materials Science Applications VASP VASP is a plane wave ab initio code for quantum mechanical molecular dynamics. It is highly scalable and shows very good parallel performance for a variety of chemical and materials science calculations. VASP is available to NERSC users who already have a VASP license. Read More » Quantum ESPRESSO/PWscf Quantum Espresso is an integrated suite of computer codes for electronic structure calculations and materials modeling at the nanoscale. It builds on

  15. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and

  16. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and

  17. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and

  18. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and

  19. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and

  20. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and

  1. Two Novel Ultra-Incompressible Materials

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

    Two Novel Ultra-Incompressible Materials Print Some current challenges in aerospace engineering and fission/fusion applications require materials that are mechanically and chemically stable at extreme conditions. One such class of materials is ultrahigh-temperature ceramics, which are often binary transition-metal carbides, borides, or nitrides. It is therefore of great interest to understand how to synthesize new compounds of this type. A research team from Germany, the United Kingdom, and

  2. Confined partial filament eruption and its reformation within a stable magnetic flux rope

    SciTech Connect (OSTI)

    Joshi, Navin Chandra; Kayshap, Pradeep; Uddin, Wahab; Srivastava, Abhishek K.; Dwivedi, B. N.; Filippov, Boris; Chandra, Ramesh; Choudhary, Debi Prasad E-mail: njoshi98@gmail.com

    2014-05-20

    We present observations of a confined partial eruption of a filament on 2012 August 4, which restores its initial shape within ?2 hr after eruption. From the Global Oscillation Network Group H? observations, we find that the filament plasma turns into dynamic motion at around 11:20 UT from the middle part of the filament toward the northwest direction with an average speed of ?105 km s{sup –1}. A little brightening underneath the filament possibly shows the signature of low-altitude reconnection below the filament eruptive part. In Solar Dynamics Observatory/Atmospheric Imaging Assembly 171 Å images, we observe an activation of right-handed helically twisted magnetic flux rope that contains the filament material and confines it during its dynamical motion. The motion of cool filament plasma stops after traveling a distance of ?215 Mm toward the northwest from the point of eruption. The plasma moves partly toward the right foot point of the flux rope, while most of the plasma returns after 12:20 UT toward the left foot point with an average speed of ?60 km s{sup –1} to reform the filament within the same stable magnetic structure. On the basis of the filament internal fine structure and its position relative to the photospheric magnetic fields, we find filament chirality to be sinistral, while the activated enveloping flux rope shows a clear right-handed twist. Thus, this dynamic event is an apparent example of one-to-one correspondence between the filament chirality (sinistral) and the enveloping flux rope helicity (positive). From the coronal magnetic field decay index, n, calculation near the flux rope axis, it is evident that the whole filament axis lies within the domain of stability (i.e., n < 1), which provides the filament stability despite strong disturbances at its eastern foot point.

  3. Ultratough, Thermally Stable Polycrystalline Diamond/Silicon Carbide

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

    Nanocomposites for Drill Bits | Department of Energy Ultratough, Thermally Stable Polycrystalline Diamond/Silicon Carbide Nanocomposites for Drill Bits Ultratough, Thermally Stable Polycrystalline Diamond/Silicon Carbide Nanocomposites for Drill Bits PDF icon nanocomposites_drill_bits.pdf More Documents & Publications ITP Nanomanufacturing: Nanomanufacturing Portfolio: Manufacturing Processes and Applications to Accelerate Commercial Use of Nanomaterials, January 2011 A History or

  4. Stable carbonous catalyst particles and method for making and utilizing same

    DOE Patents [OSTI]

    Ganguli, Partha S.; Comolli, Alfred G.

    2005-06-14

    Stable carbonous catalyst particles composed of an inorganic catalytic metal/metal oxide powder and a carbonaceous binder material are formed having a basic inner substantially uniform-porous carbon coating of the catalytic powder, and may include an outer porous carbon coating layer. Suitable inorganic catalytic powders include zinc-chromite (ZnO/Cr.sub.2 03) and suitable carbonaceous liquid binders having molecular weight of 200-700 include partially polymerized furfuryl alcohol, which are mixed together, shaped and carbonized and partially oxidized at elevated temperature. Such stable carbonous catalyst particles such as 0.020-0.100 inch (0.51-2.54 mm) diameter extrudates, have total carbon content of 2-25 wt. % and improved crush strength of 1.0-5 1b/mn, 50-300 m.sup.2 /g surface area, and can be advantageously utilized in fixed bed or ebullated/fluidized bed reactor operations. This invention also includes method steps for making the stable carbonous catalyst particles having improved particle strength and catalytic activity, and processes for utilizing the active stable carbonous carbon-coated catalysts such as for syn-gas reactions in ebullated/fluidized bed reactors for producing alcohol products and Fischer-Tropsch synthesis liquid products.

  5. NREL: Wind Research - Wind Career Map Shows Wind Industry Career...

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

    Wind Career Map Shows Wind Industry Career Opportunities, Paths A screenshot of the wind career map showing the various points on a chart that show different careers in the wind...

  6. Storage of nuclear materials by encapsulation in fullerenes

    DOE Patents [OSTI]

    Coppa, Nicholas V. (Los Alamos, NM)

    1994-01-01

    A method of encapsulating radioactive materials inside fullerenes for stable long-term storage. Fullerenes provide a safe and efficient means of disposing of nuclear waste which is extremely stable with respect to the environment. After encapsulation, a radioactive ion is essentially chemically isolated from its external environment.

  7. Study Shows Active Power Controls from Wind May Increase Revenues...

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

    Shows Active Power Controls from Wind May Increase Revenues and Improve System Reliability Study Shows Active Power Controls from Wind May Increase Revenues and Improve System ...

  8. Shanghai Hi Show Photovoltaic Science Technology Co Ltd | Open...

    Open Energy Info (EERE)

    Hi Show Photovoltaic Science Technology Co Ltd Jump to: navigation, search Name: Shanghai Hi-Show Photovoltaic Science & Technology Co., Ltd Place: Shanghai Municipality, China...

  9. Federal Energy Management Trade Show | Department of Energy

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

    Federal Energy Management Trade Show Federal Energy Management Trade Show Addthis 1 of 4 Timothy Unruh, Program Manager for the Office of Energy Efficiency and Renewable Energy...

  10. Scintillator material

    DOE Patents [OSTI]

    Anderson, D.F.; Kross, B.J.

    1992-07-28

    An improved scintillator material comprising cerium fluoride is disclosed. Cerium fluoride has been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to known scintillator materials such as thallium-doped sodium iodide, barium fluoride and bismuth germanate. As a result, cerium fluoride is favorably suited for use as a scintillator material in positron emission tomography. 4 figs.

  11. Scintillator material

    DOE Patents [OSTI]

    Anderson, D.F.; Kross, B.J.

    1994-06-07

    An improved scintillator material comprising cerium fluoride is disclosed. Cerium fluoride has been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to known scintillator materials such as thallium-doped sodium iodide, barium fluoride and bismuth germanate. As a result, cerium fluoride is favorably suited for use as a scintillator material in positron emission tomography. 4 figs.

  12. Scintillator material

    DOE Patents [OSTI]

    Anderson, David F. (Batavia, IL); Kross, Brian J. (Aurora, IL)

    1992-01-01

    An improved scintillator material comprising cerium fluoride is disclosed. Cerium fluoride has been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to known scintillator materials such as thallium-doped sodium iodide, barium fluoride and bismuth germanate. As a result, cerium fluoride is favorably suited for use as a scintillator material in positron emission tomography.

  13. Scintillator material

    DOE Patents [OSTI]

    Anderson, David F. (Batavia, IL); Kross, Brian J. (Aurora, IL)

    1994-01-01

    An improved scintillator material comprising cerium fluoride is disclosed. Cerium fluoride has been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to known scintillator materials such as thallium-doped sodium iodide, barium fluoride and bismuth germanate. As a result, cerium fluoride is favorably suited for use as a scintillator material in positron emission tomography.

  14. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    normal density. A 75-liter fed-batch growth produced 14 kg of yeast and required a new freezer be purchased to store it all. With this massive increase in starting material, enough...

  15. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    normal density. A 75-liter fed-batch growth produced 14 kg of yeast and required a new freezer be purchased to store it all. With this massive increase in starting material,...

  16. Self-assembled lipid bilayer materials

    DOE Patents [OSTI]

    Sasaki, Darryl Y.; Waggoner, Tina A.; Last, Julie A.

    2005-11-08

    The present invention is a self-assembling material comprised of stacks of lipid bilayers formed in a columnar structure, where the assembly process is mediated and regulated by chemical recognition events. The material, through the chemical recognition interactions, has a self-regulating system that corrects the radial size of the assembly creating a uniform diameter throughout most of the structure. The materials form and are stable in aqueous solution. These materials are useful as structural elements for the architecture of materials and components in nanotechnology, efficient light harvesting systems for optical sensing, chemical processing centers, and drug delivery vehicles.

  17. Reference Materials

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

    Reference Materials (continued) * Generators are required to avoid Las Vegas metropolitan area and Hoover Dam (Section 6.4 of NNSS Waste Acceptance Criteria, available at ...

  18. material recovery

    National Nuclear Security Administration (NNSA)

    dispose of dangerous nuclear and radiological material, and detect and control the proliferation of related WMD technology and expertise.

  19. Stable and Efficient White OLEDs Based on a Single Emissive Material

    Broader source: Energy.gov [DOE]

    Lead Performer: Arizona State University – Tempe, AZPartners: Universal Display Corporation – Ewing, NJDOE Total Funding: $700,000Cost Share: $175,000Project Term: 7/1/15 – 6/30/17Funding...

  20. Reference Materials

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

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Advanced Scientific Computing Research January 5-6, 2011 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors NERSC Documents NERSC science requirements home page NERSC science requirements workshop page NERSC science requirements case study FAQ Previous NERSC Requirements Workshops Biological and Environmental Research (BER) Basic Energy Sciences (BES) Fusion Energy Sciences

  1. Reference Materials

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

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Biological and Environmental Research May 7-8, 2009 Invitation Workshop Invitation Letter from DOE Associate Directors Workshop Invitation Letter from DOE ASCR Program Manager Yukiko Sekine Last edited: 2016-02-01 08:06:5

  2. Engineered Materials

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

    7 Engineered Materials Materials design, fabrication, assembly, and characterization for national security needs. Contact Us Group Leader Ross Muenchausen Email Deputy Group Leader Dominic Peterson Email Group Office (505)-667-6887 We perform polymer science and engineering, including ultra-precision target design, fabrication, assembly, characterization, and field support. We perform polymer science and engineering, including ultra-precision target design, fabrication, assembly,

  3. Composite material

    DOE Patents [OSTI]

    Hutchens, Stacy A. (Knoxville, TN); Woodward, Jonathan (Solihull, GB); Evans, Barbara R. (Oak Ridge, TN); O'Neill, Hugh M. (Knoxville, TN)

    2012-02-07

    A composite biocompatible hydrogel material includes a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa. A calcium comprising salt is disposed in at least some of the pores. The porous polymer matrix can comprise cellulose, including bacterial cellulose. The composite can be used as a bone graft material. A method of tissue repair within the body of animals includes the steps of providing a composite biocompatible hydrogel material including a porous polymer matrix, the polymer matrix including a plurality of pores and providing a Young's modulus of at least 10 GPa, and inserting the hydrogel material into cartilage or bone tissue of an animal, wherein the hydrogel material supports cell colonization in vitro for autologous cell seeding.

  4. Cermet materials

    DOE Patents [OSTI]

    Kong, Peter C. (Idaho Falls, ID)

    2008-12-23

    A self-cleaning porous cermet material, filter and system utilizing the same may be used in filtering particulate and gaseous pollutants from internal combustion engines having intermetallic and ceramic phases. The porous cermet filter may be made from a transition metal aluminide phase and an alumina phase. Filler materials may be added to increase the porosity or tailor the catalytic properties of the cermet material. Additionally, the cermet material may be reinforced with fibers or screens. The porous filter may also be electrically conductive so that a current may be passed therethrough to heat the filter during use. Further, a heating element may be incorporated into the porous cermet filter during manufacture. This heating element can be coated with a ceramic material to electrically insulate the heating element. An external heating element may also be provided to heat the cermet filter during use.

  5. Materials Discovery | Materials Science | NREL

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

    Discovery Images of red and yellow particles NREL's research in materials discovery serves as a foundation for technological progress in renewable energies. Our experimental activities in inorganic solid-state materials innovation span a broad range of technological readiness levels-from basic science through applied research to device development-relying on a high-throughput combinatorial materials science approach, followed by traditional targeted experiments. In addition, our researchers work

  6. Hydrothermally Stable, Sulfur-Tolerant Platinum-Based Oxidation Catalysts

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

    via Surface Modification of SiO2 with TiO2 and ZrO2 | Department of Energy Hydrothermally Stable, Sulfur-Tolerant Platinum-Based Oxidation Catalysts via Surface Modification of SiO2 with TiO2 and ZrO2 Hydrothermally Stable, Sulfur-Tolerant Platinum-Based Oxidation Catalysts via Surface Modification of SiO2 with TiO2 and ZrO2 This study demonstrates the feasibility of developing highly stable, sulfur-tolerant oxidation catalysts that use less Pt via surface modification of silica supports

  7. Studies Show No Evidence of Impacts from Wind on Residential...

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

    Studies Show No Evidence of Impacts from Wind on Residential Property Values Studies Show No Evidence of Impacts from Wind on Residential Property Values January 6, 2014 - 10:00am...

  8. Nebraska shows potential to produce biofuel crops | Department...

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

    shows potential to produce biofuel crops Nebraska shows potential to produce biofuel crops December 9, 2009 - 11:12am Addthis Joshua DeLung What are the key facts? Utilizing sites ...

  9. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Monday, 28 November 2011 14:52 Movement is fundamental to life. It...

  10. MPA, Materials Physics and Applications (Technical Report) |...

    Office of Scientific and Technical Information (OSTI)

    MPA, Materials Physics and Applications Citation Details In-Document Search Title: MPA, Materials Physics and Applications Authors: Kippen, Karen Elizabeth 1 + Show Author...

  11. Module Encapsulation Materials, Processing and Testing (Presentation)

    SciTech Connect (OSTI)

    Pern, J.

    2008-12-01

    Study of PV module encapsulation materials, processing, and testing shows that overall module reliability is determined by all component materials and processing factors.

  12. Stable Metal-Organic Frameworks Containing Single-Molecule Traps...

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

    Stable Metal-Organic Frameworks Containing Single-Molecule Traps for Enzyme Encapsulation Previous Next List Dawei Feng, Tian-Fu Liu, Jie Su, Mathieu Bosch, Zhangwen Wei, Wei Wan,...

  13. Topology-Guided Design and Syntheses of Highly Stable Mesoporous...

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

    Topology-Guided Design and Syntheses of Highly Stable Mesoporous Porphyrinic Zirconium Metal-Organic Frameworks with High Surface Area Previous Next List Tian-Fu Liu, Dawei Feng,...

  14. Chemical and light-stable isotope characteristics of waters from...

    Open Energy Info (EERE)

    light-stable isotope characteristics of waters from the raft river geothermal area and environs, Cassia County, Idaho, Box Elder county, Utah Jump to: navigation, search OpenEI...

  15. Stable Wind Energy Ltd SWEL | Open Energy Information

    Open Energy Info (EERE)

    Wind Energy Ltd SWEL Jump to: navigation, search Name: Stable Wind Energy Ltd (SWEL) Place: Tirunelveli, Tamil Nadu, India Zip: 627011 Sector: Wind energy Product: Tamil Nadu-based...

  16. Getting the Most Out of a Show | Department of Energy

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

    Publications, Exhibits, & Logos » Getting the Most Out of a Show Getting the Most Out of a Show These guidelines are designed to assist you during the event, in order to get the most out of the showing of your exhibit. Look the Part Create a good impression for EERE by looking polished and professional. Wear business-like, comfortable attire. Don't forget your nametag! Get plenty of rest before the show, and pace yourself during the show (you will need breaks, so schedule them). Staffing

  17. material removal

    National Nuclear Security Administration (NNSA)

    %2A en Nuclear Material Removal http:nnsa.energy.govaboutusourprogramsdnnm3remove

    Page...

  18. Complex Materials

    ScienceCinema (OSTI)

    Cooper, Valentino

    2014-05-23

    Valentino Cooper uses some of the world's most powerful computing to understand how materials work at subatomic levels, studying breakthroughs such as piezoelectrics, which convert mechanical stress to electrical energy.

  19. material removal

    National Nuclear Security Administration (NNSA)

    %2A en Nuclear Material Removal http:www.nnsa.energy.govaboutusourprogramsdnnm3remove

    Pag...

  20. Prediction and Experimental Evidence for Thermodynamically Stable Charged

    Office of Scientific and Technical Information (OSTI)

    Orbital Domain Walls (Journal Article) | SciTech Connect Prediction and Experimental Evidence for Thermodynamically Stable Charged Orbital Domain Walls Citation Details In-Document Search Title: Prediction and Experimental Evidence for Thermodynamically Stable Charged Orbital Domain Walls Authors: Li, Q. ; Gray, K. ; Wilkins, S. ; Garcia Fernandez, M. ; Rosenkranz, S. ; Zheng, H. ; Mitchell, J. Publication Date: 2014-08-18 OSTI Identifier: 1162811 Report Number(s): BNL--106757-2014-JA

  1. PROJECT PROFILE: Stable Perovskite Solar Cells via Chemical Vapor

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

    Deposition | Department of Energy Stable Perovskite Solar Cells via Chemical Vapor Deposition PROJECT PROFILE: Stable Perovskite Solar Cells via Chemical Vapor Deposition Funding Opportunity: SuNLaMP SunShot Subprogram: Photovoltaics Location: National Renewable Energy Laboratory, Golden, CO SunShot Award Amount: $125,000 This project is focused on novel approaches to remove risk related to the development of hybrid perovskite solar cells (HPSCs). Researchers will synthesize a new and

  2. Project Profile: Thermally-Stable Ionic Liquid Carriers for

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

    Nanoparticle-Based Heat Transfer in CSP Applications | Department of Energy Thermally-Stable Ionic Liquid Carriers for Nanoparticle-Based Heat Transfer in CSP Applications Project Profile: Thermally-Stable Ionic Liquid Carriers for Nanoparticle-Based Heat Transfer in CSP Applications SRNL logo Savannah River National Laboratory, under an ARRA CSP Award, is performing research to better understand the thermal stability of low-temperature organic molten salts, which are commonly referred to as

  3. Topology-Guided Design and Syntheses of Highly Stable Mesoporous

    Office of Scientific and Technical Information (OSTI)

    Porphyrinic Zirconium Metal-Organic Frameworks with High Surface Area (Journal Article) | SciTech Connect Topology-Guided Design and Syntheses of Highly Stable Mesoporous Porphyrinic Zirconium Metal-Organic Frameworks with High Surface Area Citation Details In-Document Search Title: Topology-Guided Design and Syntheses of Highly Stable Mesoporous Porphyrinic Zirconium Metal-Organic Frameworks with High Surface Area Authors: Liu, Tian-Fu ; Feng, Dawei ; Chen, Ying-Pin ; Zou, Lanfang ; Bosch,

  4. Stable, High-Efficiency White Electrophosphorescent Organic Light Emitting

    Energy Savers [EERE]

    Devices by Reduced Molecular Dissociation | Department of Energy Stable, High-Efficiency White Electrophosphorescent Organic Light Emitting Devices by Reduced Molecular Dissociation Stable, High-Efficiency White Electrophosphorescent Organic Light Emitting Devices by Reduced Molecular Dissociation Lead Performer: University of Michigan - Ann Arbor - Ann Arbor, MI Partners: - University of California - City, CA - Universal Display Corporation - Ewing, NJ DOE Total Funding: $1,314,240 Cost

  5. Stable Free Radicals and Potential Implications for Health Effects of

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

    Diesel Emissions | Department of Energy Stable Free Radicals and Potential Implications for Health Effects of Diesel Emissions Stable Free Radicals and Potential Implications for Health Effects of Diesel Emissions 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_dellinger.pdf More Documents & Publications Bifunctional Catalysts for the Selective Catalytic Reduction of NO by Hydrocarbons ACES: Evaluation of Tissue Response to Inhaled

  6. Propulsion materials

    SciTech Connect (OSTI)

    Wall, Edward J.; Sullivan, Rogelio A.; Gibbs, Jerry L.

    2008-01-01

    The Department of Energy’s (DOE’s) Office of Vehicle Technologies (OVT) is pleased to introduce the FY 2007 Annual Progress Report for the Propulsion Materials Research and Development Program. Together with DOE national laboratories and in partnership with private industry and universities across the United States, the program continues to engage in research and development (R&D) that provides enabling materials technology for fuel-efficient and environmentally friendly commercial and passenger vehicles.

  7. Reference Materials

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

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for Fusion Energy Sciences August 3-4, 2010 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors [not available] NERSC Documents NERSC science requirements home page NERSC science requirements workshop page NERSC science requirements case study FAQ Workshop Agenda Previous NERSC Requirements Workshops Biological and Environmental Research (BER) Basic Energy Sciences (BES) Fusion

  8. Reference Materials

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

    Reference Materials Reference Materials Large Scale Computing and Storage Requirements for High Energy Physics November 12-13, 2009 Official DOE Invitation Workshop Invitation Letter from DOE Associate Directors NERSC Documents NERSC science requirements home page NERSC science requirements workshop page NERSC science requirements case study FAQ Workshop Agenda Previous NERSC Requirements Workshops Biological and Environmental Research (BER) Basic Energy Sciences (BES) Fusion Energy Sciences

  9. Meeting Materials

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

    BER Meeting Materials Meeting Materials Here you will find various items to be used before and during the requirements review. The following documents are included: Case study worksheet to be filled in by meeting participants Sample of a completed case study from a Nuclear Physics requirements workshop held in 2011 A graph of NERSC and BER usage as a function of time A powerpoint template you can use at the requirements review Downloads RequirementsWorkshopCaseStudyTemplate.doc | Word document

  10. Meeting Materials

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

    HEP Meeting Materials Meeting Materials Here you will find various items to be used before and during the requirements review. The following documents are included: Case study worksheet to be filled in by meeting participants Sample of a completed case study from a Nuclear Physics requirements workshop held in 2011 A graph of NERSC and HEP usage as a function of time A powerpoint template you can use at the requirements review Downloads CaseStudyTemplate.docx | unknown Case Study Worksheet -

  11. Production of stable, non-thermal atmospheric pressure rf capacitive plasmas using gases other than helium or neon

    DOE Patents [OSTI]

    Park, Jaeyoung; Henins, Ivars

    2005-06-21

    The present invention enables the production of stable, steady state, non-thermal atmospheric pressure rf capacitive .alpha.-mode plasmas using gases other than helium and neon. In particular, the current invention generates and maintains stable, steady-state, non-thermal atmospheric pressure rf .alpha.-mode plasmas using pure argon or argon with reactive gas mixtures, pure oxygen or air. By replacing rare and expensive helium with more readily available gases, this invention makes it more economical to use atmospheric pressure rf .alpha.-mode plasmas for various materials processing applications.

  12. Old and stable soil organic matter is not necessarily chemically recalcitrant: Implications for modeling concepts and temperature sensitivity

    SciTech Connect (OSTI)

    Kleber, M.; Nico, P.S.; Plante, A.; Filley, T.; Kramer, M.; Swanston, C.; Sollins, P.

    2010-03-01

    Soil carbon turnover models generally divide soil carbon into pools with varying intrinsic decomposition rates. Although these decomposition rates are modified by factors such as temperature, texture, and moisture, they are rationalized by assuming chemical structure is a primary controller of decomposition. In the current work, we use near edge X-ray absorption fine structure (NEXAFS) spectroscopy in combination with differential scanning calorimetry (DSC) and alkaline cupric oxide (CuO) oxidation to explore this assumption. Specifically, we examined material from the 2.3-2.6 kg L{sup -1} density fraction of three soils of different type (Oxisol, Alfisol, Inceptisol). The density fraction with the youngest {sup 14}C age (Oxisol, 107 years) showed the highest relative abundance of aromatic groups and the lowest O-alkyl C/aromatic C ratio as determined by NEXAFS. Conversely, the fraction with the oldest C (Inceptisol, 680 years) had the lowest relative abundance of aromatic groups and highest O-alkyl C/aromatic C ratio. This sample also had the highest proportion of thermally labile materials as measured by DSC, and the highest ratio of substituted fatty acids to lignin phenols as indicated by CuO oxidation. Therefore, the organic matter of the Inceptisol sample, with a {sup 14}C age associated with 'passive' pools of carbon (680 years), had the largest proportion of easily metabolizable organic molecules with low thermodynamic stability, whereas the organic matter of the much younger Oxisol sample (107 years) had the highest proportion of supposedly stable organic structures considered more difficult to metabolize. Our results demonstrate that C age is not necessarily related to molecular structure or thermodynamic stability, and we suggest that soil carbon models would benefit from viewing turnover rate as codetermined by the interaction between substrates, microbial actors, and abiotic driving variables. Furthermore, assuming that old carbon is composed of complex or 'recalcitrant' compounds will erroneously attribute a greater temperature sensitivity to those materials than they may actually possess.

  13. 3D Printed Car at the International Manufacturing Technology Show |

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

    Department of Energy 3D Printed Car at the International Manufacturing Technology Show 3D Printed Car at the International Manufacturing Technology Show Addthis WORLD&#039;S FIRST 1 of 6 WORLD'S FIRST The world's first 3D-printed car on display at the International Manufacturing Technology Show in Chicago last week. Arizona-based Local Motors, and Cincinnati Incorporated teamed with Oak Ridge National Laboratory's Manufacturing Demonstration Facility-with funding support from the Energy

  14. Study Shows Significant Economic Impact from Recovery Act | Department of

    Office of Environmental Management (EM)

    Energy Study Shows Significant Economic Impact from Recovery Act Study Shows Significant Economic Impact from Recovery Act A study recently released shows the $1.6 billion the Savannah River Site (SRS) received from the American Recovery and Reinvestment Act has had a positive economic impact on the adjacent five-county region. The study's findings were presented at the University of South Carolina Aiken's (USC Aiken) Convocation Center. More than 75 people attended the meeting, where

  15. PORTLAND SHOWS HOW CLEAN ENERGY WORKS | Department of Energy

    Energy Savers [EERE]

    PORTLAND SHOWS HOW CLEAN ENERGY WORKS PORTLAND SHOWS HOW CLEAN ENERGY WORKS PORTLAND SHOWS HOW CLEAN ENERGY WORKS Energy efficiency is not a new concept to Oregonians; the state has a long history of progressive energy policy. More recently, the state wanted to marry its need for weatherization of more than 500,000 homes with a transformation of Oregon's home performance industry, by creating jobs with family-supporting wages and health benefits. The City of Portland used $20 million in seed

  16. New Geothermal Prospects in the Western United States Show Promise |

    Office of Environmental Management (EM)

    Department of Energy Geothermal Prospects in the Western United States Show Promise New Geothermal Prospects in the Western United States Show Promise February 27, 2013 - 2:21pm Addthis New geothermal prospects in the western United States show promise, according to the new 2013 Annual U.S. Geothermal Power Production and Development Report, published by the Geothermal Energy Association this week. With an estimate of more than 500 Megawatts of new potential in Oregon alone, industry leader

  17. SLIDESHOW: Secretary Moniz Tours 2014 Washington Auto Show

    Broader source: Energy.gov [DOE]

    A slideshow featuring highlights from Secretary Moniz's tour of the 2014 Washington Auto Show is currently posted on the Energy Department's blog.

  18. NREL: Wind Research - New Video Shows How NREL Is Redefining...

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

    New Video Shows How NREL Is Redefining What's Possible for Renewable Energy Through Grid Integration January 23, 2015 NREL is spearheading engineering innovations that will help...

  19. Sandia Energy - Biofuels Blend Right In: Researchers Show Ionic...

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

    Biofuels Blend Right In: Researchers Show Ionic Liquids Effective for Pretreating Mixed Blends of Biofuel Feedstocks Home Renewable Energy Energy Transportation Energy Biofuels...

  20. User:Nlangle/show map test | Open Energy Information

    Open Energy Info (EERE)

    show map test < User:Nlangle Jump to: navigation, search Loading map... "minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":"ROADMAP","SATELLITE","H...

  1. NREL: Technology Transfer - New Video Shows How NREL Is Redefining...

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

    New Video Shows How NREL Is Redefining What's Possible for Renewable Energy Through Grid Integration January 23, 2015 NREL is spearheading engineering innovations that will help...

  2. Widget:ShowRefFieldsButton | Open Energy Information

    Open Energy Info (EERE)

    widget provides supporting functionality to forms that want to capture references for specific values. Specifically, this widget creates the Show Reference Fields button, which...

  3. ORISE: Report shows nuclear engineering graduation rates leveling...

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

    ORISE report shows nuclear engineering graduation rates leveling off in 2014 after five years of increase Decline seen in undergraduate and master degrees, while number of doctoral...

  4. New Report Shows Trend Toward Larger Offshore Wind Systems, with...

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

    Report Shows Trend Toward Larger Offshore Wind Systems, with 11 Advanced Stage Projects ... in offshore wind farms, increasing the amount of electricity delivered to consumers. ...

  5. DOE Booth Presentations From Grainger Show 2015 | Department of Energy

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

    From Grainger Show 2015 DOE Booth Presentations From Grainger Show 2015 DOE hosted its solid-state lighting informational booth February 16-18 at the annual Grainger Show in Orlando, FL. With over 17,000 attendees and over 750 exhibitors, the show gathered a wide range of Grainger customers-from universities to large hotel chains-as well as Grainger team members to learn the latest about LED lighting. In the booth, DOE experts provided vendor-neutral training sessions to educate attendees on how

  6. Polyolefin composites containing a phase change material

    DOE Patents [OSTI]

    Salyer, Ival O. (Dayton, OH)

    1991-01-01

    A composite useful in thermal energy storage, said composite being formed of a polyolefin matrix having a phase change material such as a crystalline alkyl hydrocarbon incorporated therein, said polyolefin being thermally form stable; the composite is useful in forming pellets, sheets or fibers having thermal energy storage characteristics; methods for forming the composite are also disclosed.

  7. DOE Booth Presentations From Grainger Show 2015 Downloads

    Broader source: Energy.gov [DOE]

    DOE hosted its solid-state lighting informational booth February 16–18 at the annual Grainger Show in Orlando, FL. With over 17,000 attendees and over 750 exhibitors, the show gathered a wide range of Grainger customers—from universities to large hotel chains as well as Grainger team members to learn the latest about LED lighting.

  8. Hardfacing material

    DOE Patents [OSTI]

    Branagan, Daniel J. (Iona, ID)

    2012-01-17

    A method of producing a hard metallic material by forming a mixture containing at least 55% iron and at least one of boron, carbon, silicon and phosphorus. The mixture is formed into an alloy and cooled to form a metallic material having a hardness of greater than about 9.2 GPa. The invention includes a method of forming a wire by combining a metal strip and a powder. The metal strip and the powder are rolled to form a wire containing at least 55% iron and from two to seven additional elements including at least one of C, Si and B. The invention also includes a method of forming a hardened surface on a substrate by processing a solid mass to form a powder, applying the powder to a surface to form a layer containing metallic glass, and converting the glass to a crystalline material having a nanocrystalline grain size.

  9. Reference Material

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

    Reference Materials There are a variety of reference materials the NSSAB utilizes and have been made available on its website. Documents Fact Sheets - links to Department of Energy Nevada Field Office webpage Public Reading Room NTA Public Reading Facility Open Monday through Friday, 7:30 am to 4:30 pm (except holidays) 755C East Flamingo Road Las Vegas, Nevada 89119 Phone (702) 794-5106 http://www.nv.doe.gov/library/testingarchive.aspx DOE Electronic Database Also available to the public is an

  10. New Report Shows Domestic Offshore Wind Industry Potential, 21 Projects

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

    Planned in U.S. Waters | Department of Energy Report Shows Domestic Offshore Wind Industry Potential, 21 Projects Planned in U.S. Waters New Report Shows Domestic Offshore Wind Industry Potential, 21 Projects Planned in U.S. Waters September 29, 2015 - 11:30am Addthis The Energy Department today released a new report showing strong progress for the U.S. offshore wind market-including the start of construction of the nation's first commercial-scale offshore wind farm, one of 21 projects

  11. Secretary Chu Speaks at the 2010 Washington Auto Show

    Broader source: Energy.gov [DOE]

    at the 2010 Washington Auto Show, Secretary Chu lays out a roadmap for how the U.S. can lead the world in making the clean vehicles we need. He also announced that the Department of Energy had...

  12. Considering removing "Show Preview" button on utility rate form...

    Open Energy Info (EERE)

    Rates I'm considering removing the "Show Preview" button, since it does not work (javascript validation issue that could be fixed), and it doesn't make sense. The reason to...

  13. JSON shows incomplete info | OpenEI Community

    Open Energy Info (EERE)

    found several rates where the JSON file doesn't show all of the information shown in the web interface. This is not an approval issue since I see it on both rates that say "This...

  14. Global Climate Change Assessment Report Shows Nations Not Doing...

    Open Energy Info (EERE)

    Global Climate Change Assessment Report Shows Nations Not Doing Enough Home > Blogs > Dc's blog Dc's picture Submitted by Dc(266) Contributor 5 November, 2014 - 14:49 The latest...

  15. New Report Shows Trend Toward Larger Offshore Wind Systems

    Broader source: Energy.gov [DOE]

    The Energy Department released a new report showing progress for the U.S. offshore wind energy market in 2012, including 11 commercial-scale U.S. projects reaching an advanced stage of development.

  16. Biological Monitoring at Amchitka Appears to Show Impacts from...

    Energy Savers [EERE]

    ... This is because ocean currents are a slower transport process than wind currents. LM scientists anticipate that the marine biota will show the impacts of Fukushima during the next ...

  17. The Chemistry Magic Show Captivates Kids | GE Global Research

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

    Chemistry Magic Show Captivates Kids Click to email this to a friend (Opens in new window) Share on Facebook (Opens in new window) Click to share (Opens in new window) Click to...

  18. Perovskite solar technology shows quick energy returns | Argonne...

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

    Perovskite solar technology shows quick energy returns By Payal Marathe * July 17, 2015 Tweet EmailPrint Solar panels are an investment-not only in terms of money, but also energy. ...

  19. 2014 Data Book Shows Increased Use of Renewable Electricity ...

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

    Book shows that U.S. renewable electricity grew to 15.5 percent of total installed capacity and 13.5 percent of total electricity generation. Published annually by the National...

  20. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported...

  1. Web Sites Show Petroleum Reduction Options - News Releases |...

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

    Web Sites Show Petroleum Reduction Options October 25, 2007 Handy new tools on the U.S. Department of Energy's (DOE) redesigned Web sites for the Alternative Fuels & Advanced ...

  2. Show your passion for innovation with a creative talk

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

    TechRev Day at Los Alamos ScienceFest Show your passion for innovation with a creative talk Organizers of Los Alamos ScienceFest are seeking innovative presentations from...

  3. Critical Materials:

    Office of Environmental Management (EM)

    Critical Materials: 1 Technology Assessment 2 Contents 3 1. Introduction to the Technology/System ............................................................................................... 2 4 2. Technology Assessment and Potential ................................................................................................. 5 5 2.1 Major Trends in Selected Clean Energy Application Areas ........................................................... 5 6 2.1.1 Permanent Magnets for Wind

  4. SLIDESHOW: Secretary Moniz Tours 2014 Washington Auto Show | Department of

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

    Energy SLIDESHOW: Secretary Moniz Tours 2014 Washington Auto Show SLIDESHOW: Secretary Moniz Tours 2014 Washington Auto Show January 22, 2014 - 6:45pm Addthis Hyundai Fuel Cell 1 of 14 Hyundai Fuel Cell Pictured here is Secretary Moniz looking at the fuel cell and motor used to power Hyundai's Tucson fuel cell vehicle. Fuel cell vehicles use hydrogen to produce electricity, which powers an electric motor to make the vehicle and its accessories work. Image: Sarah Gerrity, Energy Department.

  5. The Majorana Demonstrator: Progress towards showing the feasibility of a

    Office of Scientific and Technical Information (OSTI)

    76Ge neutrinoless double-beta decay experiment (Conference) | SciTech Connect Conference: The Majorana Demonstrator: Progress towards showing the feasibility of a 76Ge neutrinoless double-beta decay experiment Citation Details In-Document Search Title: The Majorana Demonstrator: Progress towards showing the feasibility of a 76Ge neutrinoless double-beta decay experiment Authors: Finnerty, P. [1] ; Elliott, Steven R. [2] ; Boswell, Melissa [2] ; Kidd, Mary [2] ; Rielage, Keith R. [2] ;

  6. The Majorana Demonstrator: Progress towards showing the feasibility of a

    Office of Scientific and Technical Information (OSTI)

    76Ge neutrinoless double-beta decay experiment (Conference) | SciTech Connect The Majorana Demonstrator: Progress towards showing the feasibility of a 76Ge neutrinoless double-beta decay experiment Citation Details In-Document Search Title: The Majorana Demonstrator: Progress towards showing the feasibility of a 76Ge neutrinoless double-beta decay experiment × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of

  7. DOE Releases New Analysis Showing Significant Advances in Electric Vehicle

    Energy Savers [EERE]

    Deployment | Department of Energy Analysis Showing Significant Advances in Electric Vehicle Deployment DOE Releases New Analysis Showing Significant Advances in Electric Vehicle Deployment February 8, 2011 - 12:00am Addthis WASHINGTON - The U.S. Department of Energy today released One Million Electric Vehicles by 2015 (pdf - 220 kb), an analysis of advances in electric vehicle deployment and progress to date in meeting President Obama's goal of putting one million electric vehicles on the

  8. Smart Surface and Lubrication Engineering show Promise for Gearbox

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

    Reliability | Department of Energy Surface and Lubrication Engineering show Promise for Gearbox Reliability Smart Surface and Lubrication Engineering show Promise for Gearbox Reliability May 20, 2011 - 1:10pm Addthis This is an excerpt from the Second Quarter 2011 edition of the Wind Program R&D Newsletter. Photo of macroscopic view of micropitting. Wind turbine gearbox failures have been one of the most costly issues that faced the wind energy industry. Unknown, unsteady operating

  9. New global HIV vaccine design shows promise in monkeys

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

    New global HIV vaccine design shows promise in monkeys New global HIV vaccine design shows promise in monkeys These vaccines are specifically designed to present the most common forms of parts of the virus that can be recognized by the immune system. October 30, 2013 Bette Korber of Los Alamos National Laboratory, who developed a component of a new vaccine against HIV, now being tested in monkeys. Bette Korber of Los Alamos National Laboratory, who developed a component of a new vaccine against

  10. Plasma research shows promise for future compact accelerators

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

    Plasma research shows promise for future compact accelerators Plasma research shows promise for future compact accelerators A transformative breakthrough in controlling ion beams allows small-scale laser-plasma accelerators to deliver unprecedented power densities. December 21, 2015 The team in front of the Trident Target Chamber. Back, from left: Tom Shimada, Sha-Marie Reid, Adam Sefkow, Miguel Santiago, and Chris Hamilton. Front, from left: Russ Mortensen, Chengkun Huang, Sasi Palaniyappan,

  11. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Monday, 28 November 2011 14:52 Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin

  12. Structural and Evolutionary Analyses Show Unique Stabilization Strategies

    Office of Scientific and Technical Information (OSTI)

    in the Type IV Pili of Clostridium difficile (Journal Article) | SciTech Connect Structural and Evolutionary Analyses Show Unique Stabilization Strategies in the Type IV Pili of Clostridium difficile Citation Details In-Document Search Title: Structural and Evolutionary Analyses Show Unique Stabilization Strategies in the Type IV Pili of Clostridium difficile Authors: Piepenbrink, Kurt H. ; Maldarelli, Grace A. ; Martinez de la Peña, Claudia F. ; Dingle, Tanis C. ; Mulvey, George L. ; Lee,

  13. The Majorana Demonstrator: Progress towards showing the feasibility of a

    Office of Scientific and Technical Information (OSTI)

    76Ge neutrinoless double-beta decay experiment (Conference) | SciTech Connect The Majorana Demonstrator: Progress towards showing the feasibility of a 76Ge neutrinoless double-beta decay experiment Citation Details In-Document Search Title: The Majorana Demonstrator: Progress towards showing the feasibility of a 76Ge neutrinoless double-beta decay experiment Authors: Finnerty, P. [1] ; Elliott, Steven R. [2] ; Boswell, Melissa [2] ; Kidd, Mary [2] ; Rielage, Keith R. [2] ; Ronquest, Michael

  14. Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits

    Office of Environmental Management (EM)

    Could Support 23,500 Jobs | Department of Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support 23,500 Jobs Energy Innovation Hub Report Shows Philadelphia-area Building Retrofits Could Support 23,500 Jobs November 10, 2011 - 10:36am Addthis This is the Greater Philadelphia Innovation Cluster located at the Philadelphia Navy Yard, which has 270 buildings that consortium members can use to conduct energy efficiency experiments. The Energy Efficiency Buildings

  15. Consumer Electronics Show 2013 Highlights Sustainable Energy Technology |

    Office of Environmental Management (EM)

    Department of Energy Consumer Electronics Show 2013 Highlights Sustainable Energy Technology Consumer Electronics Show 2013 Highlights Sustainable Energy Technology January 18, 2013 - 4:52pm Addthis Excited attendees flood into the Central Hall exhibits to see the latest and greatest in technology at the 2013 International CES. | 2013 International CES Excited attendees flood into the Central Hall exhibits to see the latest and greatest in technology at the 2013 International CES. | 2013

  16. NREL Refinery Process Shows Increased Effectiveness of Producing Ethanol

    Office of Environmental Management (EM)

    from Algae | Department of Energy NREL Refinery Process Shows Increased Effectiveness of Producing Ethanol from Algae NREL Refinery Process Shows Increased Effectiveness of Producing Ethanol from Algae February 11, 2016 - 5:07pm Addthis A new biorefinery process developed by scientists at the Energy Department's National Renewable Energy Laboratory (NREL) with funding from the U.S. Department of Energy's Bioenergy Technologies Office (BETO) has proven to be significantly more effective at

  17. Washington Auto Show Spotlight: How Fuel Cell Electric Vehicles Work |

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

    Department of Energy Washington Auto Show Spotlight: How Fuel Cell Electric Vehicles Work Washington Auto Show Spotlight: How Fuel Cell Electric Vehicles Work January 27, 2015 - 12:57pm Addthis The Hyundai Tucson FCEV is currently available for lease in Southern California for less than $500 per month, including free hydrogen fuel. Hydrogen for FCEVs can be produced from a variety of resources all providing emission reductions. Hydrogen derived from natural gas reduces emissions by half and

  18. Science Against Stress: Research Shows Way to Some Cellular Relief |

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

    Department of Energy Science Against Stress: Research Shows Way to Some Cellular Relief Science Against Stress: Research Shows Way to Some Cellular Relief December 30, 2011 - 10:14am Addthis Researchers at Brookhaven National Lab (BNL) are studying how radiation affects DNA, specifically a tumor-suppressor protein called p53, which deploys cell repair efforts. | Photo courtesy of National Institute of Health. Researchers at Brookhaven National Lab (BNL) are studying how radiation affects

  19. Chemistry and Material Sciences Applications

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

    Chemistry and Material Sciences Applications Chemistry and Material Sciences Applications June 26, 2012 Jack Zhengji NERSC Training Event 09:00 - 12:00 PST June 26, 2012 Concurrently presented on the web and at NERSC's Oakland Scientific Facility Attendance: 45 Chemistry and Material Sciences Applications Zhengji Zhao, NERSC User Services Group Jack Deslippe, NERSC User Services Group The first hour of the training is targeted at beginners. We will show you how to get started running material

  20. Enriching stable isotopes: Alternative use for Urenco technology

    SciTech Connect (OSTI)

    Rakhorst, H.; de Jong, P.G.T.; Dawson, P.D.

    1996-12-31

    The International Urenco Group utilizes a technologically advanced centrifuge process to enrich uranium in the fissionable isotope {sup 235}U. The group operates plants in the United Kingdom, the Netherlands, and Germany and currently holds a 10% share of the multibillion dollar world enrichment market. In the early 1990s, Urenco embarked on a strategy of building on the company`s uniquely advanced centrifuge process and laser isotope separation (LIS) experience to enrich nonradioactive isotopes colloquially known as stable isotopes. This paper summarizes the present status of Urenco`s stable isotopes business.

  1. Thermally stable surfactants and compositions and methods of use thereof

    DOE Patents [OSTI]

    Chaiko, David J. (Woodridge, IL)

    2008-09-02

    There are provided novel thermally stable surfactants for use with fillers in the preparation of polymer composites and nanocomposites. Typically, surfactants of the invention are urethanes, ureas or esters of thiocarbamic acid having a hydrocarbyl group of from 10 to 50 carbons and optionally including an ionizable or charged group (e.g., carboxyl group or quaternary amine). Thus, there are provided surfactants having Formula I: ##STR00001## wherein the variables are as defined herein. Further provided are methods of making thermally stable surfactants and compositions, including composites and nanocomposites, using fillers coated with the surfactants.

  2. Annual report shows potential INL radiation doses well below safe

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

    regulatory limits Annual report shows potential INL radiation doses well below safe regulatory limits July 21, 2010 Media contact: Tim Jackson (208) 526-8484 Idaho Falls, ID � The U.S. Department of Energy�s Idaho Operations Office reported this month that radiation from the site falls well below limits established by the U.S. Environmental Protection Agency. The report�s conclusions are supported by direct environmental monitoring data routinely taken during the year, and show that

  3. 2014 Washington Auto Show Slideshow | Department of Energy

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

    4 Washington Auto Show Slideshow 2014 Washington Auto Show Slideshow Addthis Hyundai Fuel Cell 1 of 14 Hyundai Fuel Cell Pictured here is Secretary Moniz looking at the fuel cell and motor used to power Hyundai's Tucson fuel cell vehicle. Fuel cell vehicles use hydrogen to produce electricity, which powers an electric motor to make the vehicle and its accessories work. Image: Sarah Gerrity, Energy Department. Date taken: 2014-01-22 11:14 Under the hood of the Hyundai Tucson Fuel Cell Vehicle 2

  4. High Performance House Showcased at Builders Show - News Releases | NREL

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

    High Performance House Showcased at Builders Show January 20, 2004 Golden, Colo. - Homebuilders attending the 2004 International Builders' Show in Las Vegas can tour a new kind of home-a highly energy-efficient Zero Energy Home that will produce as much electricity as it uses over the course of a year. The U.S. Department of Energy (DOE) and its National Renewable Energy Laboratory (NREL) partnered with Pardee Homes and energy consultant ConSol to introduce the Zero Energy Home concept with this

  5. U.S. gasoline prices show little movement (long version)

    Gasoline and Diesel Fuel Update (EIA)

    30, 2014 U.S. gasoline prices show little movement (long version) The U.S. average retail price for regular gasoline showed no movement from last week. The average price remained flat at $3.70 a gallon on Monday, based on the weekly price survey by the U.S. Energy Information Administration. Pump prices were highest in the West Coast states at 4.04 a gallon, up 2 ½ cents from a week ago. Prices were lowest in the Gulf Coast region at 3.48 a gallon, down 1.1 cents. This is Amerine Woodyard, with

  6. Biological Monitoring at Amchitka Appears to Show Impacts from Fukushima

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

    Dai-ichi Incident | Department of Energy Biological Monitoring at Amchitka Appears to Show Impacts from Fukushima Dai-ichi Incident Biological Monitoring at Amchitka Appears to Show Impacts from Fukushima Dai-ichi Incident April 12, 2013 - 3:09pm Addthis An LM scientist points to star reindeer lichen on Adak Island, Alaska. An LM scientist points to star reindeer lichen on Adak Island, Alaska. What does this project do? Goal 1. Protect human health and the environment The U.S. Department of

  7. Secretary Moniz's Remarks at the Washington Auto Show -- As Delivered |

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

    Department of Energy at the Washington Auto Show -- As Delivered Secretary Moniz's Remarks at the Washington Auto Show -- As Delivered January 22, 2015 - 1:12pm Addthis Dr. Ernest Moniz Dr. Ernest Moniz Secretary of Energy It's a pleasure to be back again this year, as last year was terrific. And as I'll say later on, last year I saw my very first fuel-cell vehicle here. And, as we'll talk about, it was a pretty big year for progress in the fuel-cell world. I was thinking of my own earliest

  8. Stable "superoxide" opens the door to a new class of batteries | Argonne

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

    National Laboratory The lattice match between LiO<sub>2</sub> and Ir<sub>3</sub>Li may be responsible for the LiO<sub>2</sub> discharge product found for the Ir-rGO cathode material. The lattice match between LiO2 and Ir3Li may be responsible for the LiO2 discharge product found for the Ir-rGO cathode material. Stable "superoxide" opens the door to a new class of batteries By Jared Sagoff * January 12, 2016 Tweet EmailPrint While lithium-ion

  9. Stable isotopic study of precipitation and spring discharge on the Nevada Test Site

    SciTech Connect (OSTI)

    Ingraham, N.L.; Jacobson, R.L.; Hess, J.W.; Lyles, B.F. . Water Resources Center Nevada Univ., Reno, NV . Water Resources Center)

    1990-07-01

    Precipitation was collected in southern Nevada (on the Nevada Test Site) on a semi-regular monthly basis at 41 locations for six years for stable isotopic analysis. The precipitation record shows two time-based regimes. For the first three years of collection, the precipitation was highly variable with several large events and several dry periods. During the last three years of collection, the precipitation was much more even with no large events. However, there is no correlation between the variability in the amount of precipitation and the stable isotopic composition of precipitation. In addition, the oxygen isotope composition and discharge of two springs, Whiterock Spring and Cane Spring, issuing from perched water tables, were monitored for five years in a similar time frame as for the precipitation. 17 refs., 42 figs., 3 tabs.

  10. Regional Partnership Documentary Wins "Best of Show" Aurora Award

    Broader source: Energy.gov [DOE]

    A documentary co-produced by Prairie Public Broadcasting and the Plains CO2 Reduction (PCOR) Partnership with support from the U.S. Department of Energy has received a 2012 Platinum Best of Show Aurora Award—the highest honor awarded—in the nature/environment documentary category.

  11. Energy Secretary Moniz at the 2016 Washington Auto Show

    Broader source: Energy.gov [DOE]

    This video of Energy Secretary Moniz at the 2016 Washington Auto Show describes how the Energy Department played a role in the resurgence of the auto industry by supporting advanced vehicle technologies that boost fuel efficiency and grow America's clean energy economy.

  12. Los Alamos plasma research shows promise for future compact accelerators |

    National Nuclear Security Administration (NNSA)

    National Nuclear Security Administration plasma research shows promise for future compact accelerators | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets

  13. EM Makes Strong Showing in Federal Food Drive

    Broader source: Energy.gov [DOE]

    WASHINGTON, D.C. – EM made a strong showing in this year’s Feds Feed Families drive, contributing 46,493 pounds of food across the DOE complex and topping it off by winning top prize in a government-wide chili cookoff held at the Department’s headquarters.

  14. Explosive scabbling of structural materials

    DOE Patents [OSTI]

    Bickes, Jr., Robert W. (Albuquerque, NM); Bonzon, Lloyd L. (Albuquerque, NM)

    2002-01-01

    A new approach to scabbling of surfaces of structural materials is disclosed. A layer of mildly energetic explosive composition is applied to the surface to be scabbled. The explosive composition is then detonated, rubbleizing the surface. Explosive compositions used must sustain a detonation front along the surface to which it is applied and conform closely to the surface being scabbled. Suitable explosive compositions exist which are stable under handling, easy to apply, easy to transport, have limited toxicity, and can be reliably detonated using conventional techniques.

  15. Maximum mass of stable magnetized highly super-Chandrasekhar white dwarfs: stable solutions with varying magnetic fields

    SciTech Connect (OSTI)

    Das, Upasana; Mukhopadhyay, Banibrata E-mail: bm@physics.iisc.ernet.in

    2014-06-01

    We address the issue of stability of recently proposed significantly super-Chandrasekhar white dwarfs. We present stable solutions of magnetostatic equilibrium models for super-Chandrasekhar white dwarfs pertaining to various magnetic field profiles. This has been obtained by self-consistently including the effects of the magnetic pressure gradient and total magnetic density in a general relativistic framework. We estimate that the maximum stable mass of magnetized white dwarfs could be more than 3 solar mass. This is very useful to explain peculiar, overluminous type Ia supernovae which do not conform to the traditional Chandrasekhar mass-limit.

  16. Apparatus and method for monitoring of gas having stable isotopes

    DOE Patents [OSTI]

    Clegg, Samuel M; Fessenden-Rahn, Julianna E

    2013-03-05

    Gas having stable isotopes is monitored continuously by using a system that sends a modulated laser beam to the gas and collects and transmits the light not absorbed by the gas to a detector. Gas from geological storage, or from the atmosphere can be monitored continuously without collecting samples and transporting them to a lab.

  17. Research Shows Ventilated Auto Seats Improve Fuel Economy, Comfort - News

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

    Releases | NREL Research Shows Ventilated Auto Seats Improve Fuel Economy, Comfort March 2, 2006 Golden, Colo. - The U.S. Department of Energy's National Renewable Energy Laboratory (NREL) has demonstrated that ventilated automotive seats not only can improve passenger comfort but also a vehicle's fuel economy. That's because ventilated seats keep drivers and passengers cooler, so they need less air conditioning to be comfortable. NREL's Vehicle Ancillary Loads Reduction team has been

  18. ORISE: Report shows nuclear engineering graduation rates leveling off in

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

    2014 after five years of increase ORISE report shows nuclear engineering graduation rates leveling off in 2014 after five years of increase Decline seen in undergraduate and master degrees, while number of doctoral degrees awarded increased FOR IMMEDIATE RELEASE July 31, 2015 FY15-38 OAK RIDGE, Tenn.-The number of college students graduating with majors in nuclear engineering has flattened and even declined somewhat after five straight years of continual increases, according to a report by

  19. ORISE: Report shows number of health physics degrees for 2010

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

    report shows number of health physics degrees increased for graduates, decreased for undergraduates in 2010 Decreased number of B.S. degrees remains higher than levels in the early 2000 FOR IMMEDIATE RELEASE Dec. 20, 2011 FY12-09 OAK RIDGE, Tenn.-The number of health physics graduate degrees increased for both master's and doctoral candidates in 2010, but decreased for bachelor's degrees, says a report released this year by the Oak Ridge Institute for Science and Education. The ORISE report,

  20. Secretary Chu Speaks at the 2010 Washington Auto Show

    SciTech Connect (OSTI)

    Secretary Chu

    2010-02-03

    Secretary Chu lays out a roadmap for how the U.S. can lead the world in making the clean vehicles we need at the 2010 Washington Auto Show. He also announced that the Department of Energy had closed on a $1.4 billion loan to Nissan to build the all-electric LEAF in Tennessee and create up to 1,300 American jobs.

  1. Secretary Chu Speaks at the 2010 Washington Auto Show

    ScienceCinema (OSTI)

    Secretary Chu

    2010-09-01

    Secretary Chu lays out a roadmap for how the U.S. can lead the world in making the clean vehicles we need at the 2010 Washington Auto Show. He also announced that the Department of Energy had closed on a $1.4 billion loan to Nissan to build the all-electric LEAF in Tennessee and create up to 1,300 American jobs.

  2. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  3. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  4. Comparing Climate Models to Real World Shows Differences in Precipitation

    Office of Science (SC) Website

    Intensity | U.S. DOE Office of Science (SC) Comparing Climate Models to Real World Shows Differences in Precipitation Intensity Biological and Environmental Research (BER) BER Home About Research Facilities Science Highlights Searchable Archive of BER Highlights External link Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC) Community Resources Contact Information Biological and Environmental Research U.S. Department of Energy

  5. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  6. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  7. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  8. Dynein Motor Domain Shows Ring-Shaped Motor, Buttress

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

    Dynein Motor Domain Shows Ring-Shaped Motor, Buttress Print Movement is fundamental to life. It takes place even at the cellular level where cargo is continually being transported by motor proteins. These tiny machines convert the energy gained from hydrolysing ATP into a series of small conformational changes that allow them to literally "walk" along microscopic tracks. Motor proteins (in the kinesin and myosin families) have been extensively studied by x-ray crystallography, but

  9. NNSA administrator shows NM congressional delegation the Albuquerque

    National Nuclear Security Administration (NNSA)

    Complex to make case for new facility | National Nuclear Security Administration administrator shows NM congressional delegation the Albuquerque Complex to make case for new facility | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our

  10. Alloy materials

    DOE Patents [OSTI]

    Hans Thieme, Cornelis Leo; Thompson, Elliott D.; Fritzemeier, Leslie G.; Cameron, Robert D.; Siegal, Edward J.

    2002-01-01

    An alloy that contains at least two metals and can be used as a substrate for a superconductor is disclosed. The alloy can contain an oxide former. The alloy can have a biaxial or cube texture. The substrate can be used in a multilayer superconductor, which can further include one or more buffer layers disposed between the substrate and the superconductor material. The alloys can be made a by process that involves first rolling the alloy then annealing the alloy. A relatively large volume percentage of the alloy can be formed of grains having a biaxial or cube texture.

  11. Construction material

    DOE Patents [OSTI]

    Wagh, Arun S. (Orland Park, IL); Antink, Allison L. (Bolingbrook, IL)

    2008-07-22

    A structural material of a polystyrene base and the reaction product of the polystyrene base and a solid phosphate ceramic is applied as a slurry which includes one or more of a metal oxide or a metal hydroxide with a source of phosphate to produce a phosphate ceramic and a poly (acrylic acid or acrylate) or combinations or salts thereof and polystyrene or MgO applied to the polystyrene base and allowed to cure so that the dried aqueous slurry chemically bonds to the polystyrene base. A method is also disclosed of applying the slurry to the polystyrene base.

  12. Casting materials

    DOE Patents [OSTI]

    Chaudhry, Anil R. (Xenia, OH); Dzugan, Robert (Cincinnati, OH); Harrington, Richard M. (Cincinnati, OH); Neece, Faurice D. (Lyndurst, OH); Singh, Nipendra P. (Pepper Pike, OH)

    2011-06-14

    A foam material comprises a liquid polymer and a liquid isocyanate which is mixed to make a solution that is poured, injected or otherwise deposited into a corresponding mold. A reaction from the mixture of the liquid polymer and liquid isocyanate inside the mold forms a thermally collapsible foam structure having a shape that corresponds to the inside surface configuration of the mold and a skin that is continuous and unbroken. Once the reaction is complete, the foam pattern is removed from the mold and may be used as a pattern in any number of conventional casting processes.

  13. Hybrid sol-gel optical materials

    DOE Patents [OSTI]

    Zeigler, John M. (Albuquerque, NM)

    1992-01-01

    Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The sol-gel materials are useful as optical identifiers in tagging and verification applications and, in a different aspect, as stable, visible light transparent non-linear optical materials. Methyl or phenyl silicones, polyaryl sulfides, polyaryl ethers, and rubbery polysilanes may be used in addition to the linear polysilane. The linear polymers cross-link with the sol to form a matrix having high optical transparency, resistance to thermooxidative aging, adherence to a variety of substrates, brittleness, and a resistance to cracking during thermal cycling.

  14. Hybrid sol-gel optical materials

    DOE Patents [OSTI]

    Zeigler, John M. (Albuquerque, NM)

    1993-01-01

    Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The sol-gel materials are useful as optical identifiers in tagging and verification applications and, in a different aspect, as stable, visible light transparent non-linear optical materials. Methyl or phenyl silicones, polyaryl sulfides, polyaryl ethers, and rubbery polysilanes may be used in addition to the linear polysilane. The linear polymers cross-link with the sol to form a matrix having high optical transparency, resistance to thermooxidative aging, adherence to a variety of substrates, brittleness, and a resistance to cracking during thermal cycling.

  15. Hybrid sol-gel optical materials

    DOE Patents [OSTI]

    Zeigler, J.M.

    1993-04-20

    Hybrid sol-gel materials comprise silicate sols cross-linked with linear polysilane, polygermane, or poly(silane-germane). The sol-gel materials are useful as optical identifiers in tagging and verification applications and, in a different aspect, as stable, visible light transparent non-linear optical materials. Methyl or phenyl silicones, polyaryl sulfides, polyaryl ethers, and rubbery polysilanes may be used in addition to the linear polysilane. The linear polymers cross-link with the sol to form a matrix having high optical transparency, resistance to thermooxidative aging, adherence to a variety of substrates, brittleness, and a resistance to cracking during thermal cycling.

  16. Case Studies Show the Value of Program Evaluation

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

    
 1
 Case Studies Show the Value of Program Evaluation Value of Program Evaluation Case Study Series Sponsored by the U.S. Department of Energy, November 2009 The U.S Department of Energy sponsored several small case studies that clearly demonstrate the benefits that evaluation can provide to energy and environmental programs. The result is a set of five "Value of Program Evaluation" Case Studies (each 2-pages in length) documenting the benefits of implementing recommendations from

  17. Photovoltaic Materials

    SciTech Connect (OSTI)

    Duty, C.; Angelini, J.; Armstrong, B.; Bennett, C.; Evans, B.; Jellison, G. E.; Joshi, P.; List, F.; Paranthaman, P.; Parish, C.; Wereszczak, A.

    2012-10-15

    The goal of the current project was to help make the US solar industry a world leader in the manufacture of thin film photovoltaics. The overall approach was to leverage ORNL’s unique characterization and processing technologies to gain a better understanding of the fundamental challenges for solar cell processing and apply that knowledge to targeted projects with industry members. ORNL has the capabilities in place and the expertise required to understand how basic material properties including defects, impurities, and grain boundaries affect the solar cell performance. ORNL also has unique processing capabilities to optimize the manufacturing process for fabrication of high efficiency and low cost solar cells. ORNL recently established the Center for Advanced Thin-film Systems (CATS), which contains a suite of optical and electrical characterization equipment specifically focused on solar cell research. Under this project, ORNL made these facilities available to industrial partners who were interested in pursuing collaborative research toward the improvement of their product or manufacturing process. Four specific projects were pursued with industrial partners: Global Solar Energy is a solar industry leader in full scale production manufacturing highly-efficient Copper Indium Gallium diSelenide (CIGS) thin film solar material, cells and products. ORNL worked with GSE to develop a scalable, non-vacuum, solution technique to deposit amorphous or nanocrystalline conducting barrier layers on untextured stainless steel substrates for fabricating high efficiency flexible CIGS PV. Ferro Corporation’s Electronic, Color and Glass Materials (“ECGM”) business unit is currently the world’s largest supplier of metallic contact materials in the crystalline solar cell marketplace. Ferro’s ECGM business unit has been the world's leading supplier of thick film metal pastes to the crystalline silicon PV industry for more than 30 years, and has had operational cells and modules in the field for 25 years. Under this project, Ferro leveraged world leading analytical capabilities at ORNL to characterize the paste-to-silicon interface microstructure and develop high efficiency next generation contact pastes. Ampulse Corporation is developing a revolutionary crystalline-silicon (c-Si) thin-film solar photovoltaic (PV) technology. Utilizing uniquely-textured substrates and buffer materials from the Oak Ridge National Laboratory (ORNL), and breakthroughs in Hot-Wire Chemical Vapor Deposition (HW-CVD) techniques in epitaxial silicon developed at the National Renewable Energy Laboratory (NREL), Ampulse is creating a solar technology that is tunable in silicon thickness, and hence in efficiency and economics, to meet the specific requirements of multiple solar PV applications. This project focused on the development of a high rate deposition process to deposit Si, Ge, and Si1-xGex films as an alternate to hot-wire CVD. Mossey Creek Solar is a start-up company with great expertise in the solar field. The primary interest is to create and preserve jobs in the solar sector by developing high-yield, low-cost, high-efficiency solar cells using MSC-patented and -proprietary technologies. The specific goal of this project was to produce large grain formation in thin, net-shape-thickness mc-Si wafers processed with high-purity silicon powder and ORNL's plasma arc lamp melting without introducing impurities that compromise absorption coefficient and carrier lifetime. As part of this project, ORNL also added specific pieces of equipment to enhance our ability to provide unique insight for the solar industry. These capabilities include a moisture barrier measurement system, a combined physical vapor deposition and sputtering system dedicated to cadmium-containing deposits, adeep level transient spectroscopy system useful for identifying defects, an integrating sphere photoluminescence system, and a high-speed ink jet printing system. These tools were combined with others to study the effect of defects on the performance of crystalline silicon and

  18. Research on stable, high-efficiency amorphous silicon multijunction modules

    SciTech Connect (OSTI)

    Guha, S. )

    1991-12-01

    This report describes research to improve the understanding of amorphous silicon alloys and other relevant non-semiconductor materials for use in high-efficiency, large-area multijunction modules. The research produced an average subcell initial efficiency of 8.8% over a 1-ft{sup 2} area using same-band-gap, dual-junction cells deposited over a ZnO/AlSi back reflector. An initial efficiency of 9.6% was achieved using a ZnO/Ag back reflector over smaller substrates. A sputtering machine will be built to deposit a ZnO/Ag back reflector over a 1-ft{sup 2} area so that a higher efficiency can also be obtained on larger substrates. Calculations have been performed to optimize the grid pattern, bus bars, and cell interconnects on modules. With our present state of technology, we expect a difference of about 6% between the aperture-area and active-area efficiencies of modules. Preliminary experiments show a difference of about 8%. We can now predict the performance of single-junction cells after long-term light exposure at 50{degree}C by exposing cells to short-term intense light at different temperatures. We find that single-junction cells deposited on a ZnO/Ag back reflector show the highest stabilized efficiency when the thickness of the intrinsic layers is about 2000 {angstrom}. 8 refs.

  19. Saint-Gobain Shows the Way on Effectively Preparing for Energy Savings Assessments

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

    As the front runner in the world's habitation markets, Saint-Gobain has set itself the goal of providing innovative solutions to the upcoming challenges of environmental protection and energy saving. - Pierre-André deChalendar, Saint Gobain CEO continued > Saint-Gobain Shows the Way on Effectively Preparing for Energy Savings Assessments Saint-Gobain, a world leader in high-performance materials and glass manufacturing, uses its rich history in energy efficiency and experiences with DOE's

  20. Construction of energy-stable Galerkin reduced order models.

    SciTech Connect (OSTI)

    Kalashnikova, Irina; Barone, Matthew Franklin; Arunajatesan, Srinivasan; van Bloemen Waanders, Bart Gustaaf

    2013-05-01

    This report aims to unify several approaches for building stable projection-based reduced order models (ROMs). Attention is focused on linear time-invariant (LTI) systems. The model reduction procedure consists of two steps: the computation of a reduced basis, and the projection of the governing partial differential equations (PDEs) onto this reduced basis. Two kinds of reduced bases are considered: the proper orthogonal decomposition (POD) basis and the balanced truncation basis. The projection step of the model reduction can be done in two ways: via continuous projection or via discrete projection. First, an approach for building energy-stable Galerkin ROMs for linear hyperbolic or incompletely parabolic systems of PDEs using continuous projection is proposed. The idea is to apply to the set of PDEs a transformation induced by the Lyapunov function for the system, and to build the ROM in the transformed variables. The resulting ROM will be energy-stable for any choice of reduced basis. It is shown that, for many PDE systems, the desired transformation is induced by a special weighted L2 inner product, termed the %E2%80%9Csymmetry inner product%E2%80%9D. Attention is then turned to building energy-stable ROMs via discrete projection. A discrete counterpart of the continuous symmetry inner product, a weighted L2 inner product termed the %E2%80%9CLyapunov inner product%E2%80%9D, is derived. The weighting matrix that defines the Lyapunov inner product can be computed in a black-box fashion for a stable LTI system arising from the discretization of a system of PDEs in space. It is shown that a ROM constructed via discrete projection using the Lyapunov inner product will be energy-stable for any choice of reduced basis. Connections between the Lyapunov inner product and the inner product induced by the balanced truncation algorithm are made. Comparisons are also made between the symmetry inner product and the Lyapunov inner product. The performance of ROMs constructed using these inner products is evaluated on several benchmark test cases.

  1. NNSA Highly Enriched Uranium Removal Featured on The Rachel Maddow Show |

    Office of Environmental Management (EM)

    Department of Energy Highly Enriched Uranium Removal Featured on The Rachel Maddow Show NNSA Highly Enriched Uranium Removal Featured on The Rachel Maddow Show March 22, 2012 - 11:37am Addthis NNSA Administrator Thomas D’Agostino appeared live last night to break the news with Rachel Maddow that all remaining weapons-usable material has been successfully removed from Mexico. | Photo courtesy of the NNSA. NNSA Administrator Thomas D'Agostino appeared live last night to break the news

  2. Sorbent Storage Materials | Department of Energy

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

    Storage » Materials-Based Storage » Sorbent Storage Materials Sorbent Storage Materials The Fuel Cell Technologies Office's sorbent storage materials research focuses on increasing the dihydrogen binding energies and improving the hydrogen volumetric capacity by optimizing the material's pore size, pore volume, and surface area, as well as investigating effects of material densification. Technical Overview Illustration of a sorbent showing the location of hydrogen molecules relative to open

  3. Low work function, stable compound clusters and generation process

    DOE Patents [OSTI]

    Dinh, Long N.; Balooch, Mehdi; Schildbach, Marcus A.; Hamza, Alex V.; McLean, II, William

    2000-01-01

    Low work function, stable compound clusters are generated by co-evaporation of a solid semiconductor (i.e., Si) and alkali metal (i.e., Cs) elements in an oxygen environment. The compound clusters are easily patterned during deposition on substrate surfaces using a conventional photo-resist technique. The cluster size distribution is narrow, with a peak range of angstroms to nanometers depending on the oxygen pressure and the Si source temperature. Tests have shown that compound clusters when deposited on a carbon substrate contain the desired low work function property and are stable up to 600.degree. C. Using the patterned cluster containing plate as a cathode baseplate and a faceplate covered with phosphor as an anode, one can apply a positive bias to the faceplate to easily extract electrons and obtain illumination.

  4. Searching Stable CuxS Structures for Photovoltaic Application (Presentation)

    SciTech Connect (OSTI)

    Zhao, Y.; Xu, O.; Huang, B.; Yan, Y.; Noufi, R,; Wei, S-H

    2014-03-01

    The crystal and electronic band structures of CuxS (1.25 < x ? 2) are systematically studied using the density-functional theory method. For Cu2S, all the three chalcocite phases, i.e., the low-chalcocite, the high-chalcocite, and the cubic-chalcocite phases have direct band gaps around 1.3-1.5 eV, with the low-chalcocite being the most stable one. However, Cu vacancies can form spontaneously in these compounds, causing instability of Cu2S. We find that under Cu-rich condition, the anilite Cu1.75S is the most stable structure. It has a predicted band gap of 1.4 eV and is a promising solar cell absorber.

  5. High Performance OLEDs with Air-stable Nanostructured Electrodes - Energy

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

    Innovation Portal Building Energy Efficiency Building Energy Efficiency Find More Like This Return to Search High Performance OLEDs with Air-stable Nanostructured Electrodes Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummaryScientists at Berkeley Lab have modified the cathode-organic layer of an OLED device to significantly enhance electron injection efficiency and reduce the sensitivity of the cathode to environmental degradation by water

  6. Low Cost, Stable Switchable Mirrors: Lithium Ion Mirrors with Improved

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

    Stability - Energy Innovation Portal Low Cost, Stable Switchable Mirrors: Lithium Ion Mirrors with Improved Stability Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummarySwitchable mirrors are a new generation of electrochromic windows that can alternate between a reflecting state and a transparent or absorbing state when a small voltage is applied. These energy saving devices have advantages over traditional absorbing electrochromics for

  7. Volume 1, 1st Edition, Multiscale Tailoring of Highly Active and Stable Nanocomposite Catalysts, Final Technical Report

    SciTech Connect (OSTI)

    Veser, Goetz

    2009-08-31

    Nanomaterials have gained much attention as catalysts since the discovery of exceptional CO oxidation activity of nanoscale gold by Haruta. However, many studies avoid testing nanomaterials at the high-temperatures relevant to reactions of interest for the production of clean energy (T > 700°C). The generally poor thermal stability of catalytically active noble metals has thus far prevented significant progress in this area. We have recently overcome the poor thermal stability of nanoparticles by synthesizing a platinum barium-hexaaluminate (Pt-BHA) nanocomposite which combines the high activity of noble metal nanoparticles with the thermal stability of hexaaluminates. This Pt-BHA nanocomposite demonstrates excellent activity, selectivity, and long-term stability in CPOM. Pt-BHA is anchored onto a variety of support structures in order to improve the accessibility, safety, and reactivity of the nanocatalyst. Silica felts prove to be particularly amenable to this supporting procedure, with the resulting supported nanocatalyst proving to be as active and stable for CPOM as its unsupported counterpart. Various pre-treatment conditions are evaluated to determine their effectiveness in removing residual surfactant from the active nanoscale platinum particles. The size of these particles is measured across a wide temperature range, and the resulting “plateau” of stability from 600-900°C can be linked to a particle caging effect due to the structure of the supporting ceramic framework. The nanocomposites are used to catalyze the combustion of a dilute methane stream, and the results indicate enhanced activity for both Pt-BHA as well as ceria-doped BHA, as well as an absence of internal mass transfer limitations at the conditions tested. In water-gas shift reaction, nanocomposite Pt-BHA shows stability during prolonged WGS reaction and no signs of deactivation during start-up/shut-down of the reactor. The chemical and thermal stability, low molecular weight, and wealth of literature on the formation of mesoporous silica materials motivated investigations of nanocomposite silica catalysts. High surface area silicas are synthesized via sol-gel methods, and the addition of metal-salts lead to the formation of stable nanocomposite Ni- and Fe- silicates. The results of these investigations have increased the fundamental understanding and improved the applicability of nanocatalysts for clean energy applications.

  8. Center for Inverse Design: Modality 3 - Discovery of Missing Materials

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

    3: Discovery of Missing Materials Modality 3 applies to yet discovered, currently undocumented materials. This approach is designed for a different class of problems: when the materials we would like to consider are simply undocumented standard compilations, i.e., they have not yet been made. Like the other two modalities, this one also involves a search space. But unlike Modalities 1 and 2, the steps involved in Modality 3 are: Calculate the stable crystal structure of a given hypothetical

  9. Hazard index for underground toxic material

    SciTech Connect (OSTI)

    Smith, C.F.; Cohen, J.J.; McKone, T.E.

    1980-06-01

    To adequately define the problem of waste management, quantitative measures of hazard must be used. This study reviews past work in the area of hazard indices and proposes a geotoxicity hazard index for use in characterizing the hazard of toxic material buried underground. Factors included in this index are: an intrinsic toxicity factor, formulated as the volume of water required for dilution to public drinking-water levels; a persistence factor to characterize the longevity of the material, ranging from unity for stable materials to smaller values for shorter-lived materials; an availability factor that relates the transport potential for the particular material to a reference value for its naturally occurring analog; and a correction factor to accommodate the buildup of decay progeny, resulting in increased toxicity.

  10. Tuning calcite morphology and growth acceleration by a rational design of highly stable protein-mimetics

    SciTech Connect (OSTI)

    Chen, Chunlong; Qi, Jiahui; Tao, Jinhui; Zuckermann, Ronald; De Yoreo, James J.

    2014-09-05

    In nature, proteins play a significant role in biomineral formation. One of the ultimate goals of bioinspired materials science is to develop highly stable synthetic molecules that mimic the function of these natural proteins by controlling crystal formation. Here, we demonstrate that both the morphology and the degree of acceleration or inhibition observed during growth of calcite in the presence of peptoids can be rationally tuned by balancing the electrostatic interactions (EI) and hydrophobic interactions (HI), with HI playing the dominant role. While either strong EI or HI inhibit growth and suppress (104) face expression, correlations between peptoid-crystal binding energies and observed changes in calcite growth indicate moderate EI allow peptoids to weakly adsorb while moderate HI cause disruption of surface-adsorbed water layers, leading to growth acceleration with retained expression of (104) faces. This study provides fundamental principles for designing peptoids as crystallization promoters, and offers a straightforward screening method based on macroscopic crystal morphology. Because peptoids are sequence-specific, highly stable, and easily synthesized, peptoid-enhanced crystallization offers a broad range of potential applications.

  11. Critical Materials Institute

    ScienceCinema (OSTI)

    Alex King

    2013-06-05

    Ames Laboratory Director Alex King talks about the goals of the Critical Materials Institute in diversifying the supply of critical materials, developing substitute materials, developing tools and techniques for recycling critical materials, and forecasting materials needs to avoid future shortages.

  12. More stable hybrid organic solar cells deposited on amorphous Si electron transfer layer

    SciTech Connect (OSTI)

    Samiee, Mehran; Modtland, Brian; Dalal, Vikram L.; Aidarkhanov, Damir

    2014-05-26

    We report on defect densities, performance, and stability of organic/inorganic hybrid solar cells produced using n-doped inorganic amorphous silicon-carbide layers as the electron transport layer (ETL). The organic material was poly-3-hexyl-thiophene (P3HT) and heterojunction was formed using phenyl-C{sub 71}-Butyric-Acid-Methyl Ester (PCBM). For comparison, inverted solar cells fabricated using Cs{sub 2}CO{sub 3} as ETL were fabricated. Defect densities and subgap quantum efficiency curves were found to be nearly identical for both types of cells. The cells were subjected to 2xsun illumination and it was found that the cells produced using doped a-Si as ETL were much more stable than the cells produced using Cs{sub 2}CO{sub 3}.

  13. Stable and responsive fluorescent carbon nanotube silica gels...

    Office of Scientific and Technical Information (OSTI)

    Resource Relation: Conference: Spring 2010 Materials Research Society Meeting ; April 5, 2010 ; San Francisco, CA Research Org: Los Alamos National Laboratory (LANL) Sponsoring...

  14. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2014-11-25

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material, such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  15. Gas storage materials, including hydrogen storage materials

    DOE Patents [OSTI]

    Mohtadi, Rana F; Wicks, George G; Heung, Leung K; Nakamura, Kenji

    2013-02-19

    A material for the storage and release of gases comprises a plurality of hollow elements, each hollow element comprising a porous wall enclosing an interior cavity, the interior cavity including structures of a solid-state storage material. In particular examples, the storage material is a hydrogen storage material such as a solid state hydride. An improved method for forming such materials includes the solution diffusion of a storage material solution through a porous wall of a hollow element into an interior cavity.

  16. Stable atomic structure of NiTi austenite

    SciTech Connect (OSTI)

    Zarkevich, Nikolai A; Johnson, Duane D

    2014-08-01

    Nitinol (NiTi), the most widely used shape-memory alloy, exhibits an austenite phase that has yet to be identified. The usually assumed austenitic structure is cubic B2, which has imaginary phonon modes, hence it is unstable. We suggest a stable austenitic structure that “on average” has B2 symmetry (observed by x-ray and neutron diffraction), but it exhibits finite atomic displacements from the ideal B2 sites. The proposed structure has a phonon spectrum that agrees with that from neutron scattering, has diffraction spectra in agreement with x-ray diffraction, and has an energy relative to the ground state that agrees with calorimetry data.

  17. Thermally stable booster explosive and process for manufacture

    DOE Patents [OSTI]

    Quinlin, William T. (Amarillo, TX); Thorpe, Raymond (Amarillo, TX); Lightfoot, James M. (Amarillo, TX)

    2006-03-21

    A thermally stable booster explosive and process for the manufacture of the explosive. The product explosive is 2,4,7,9-tetranitro-10H-benzo[4,5]furo[3,2-b]indole (TNBFI). A reactant/solvent such as n-methylpyrrolidone (NMP) or dimethyl formamide (DMF) is made slightly basic. The solution is heated to reduce the water content. The solution is cooled and hexanitrostilbene is added. The solution is heated to a predetermined temperature for a specific time period, cooled, and the product is collected by filtration.

  18. High Efficiency and Stable White OLED Using a Single Emitter

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

    Jian Li, jian.li.1@asu.edu Arizona State University High efficiency and stable white OLED using a single emitter 2014 Building Technologies Office Peer Review 2 Project Summary Timeline: Start date: 10/1/2011 Planned end date: 9/30/2014 Key Milestones 1. demonstrating a single-doped white device (CRI> 80) with a PE of 40 lm/W @ 1000 cd/m 2 and an operational lifetime over 100 hrs @ 1000 cd/m 2 ; 9/30/13 2. blue device using halogen-free Pt-based emitters with an EQE of over 15%; 9/30/14 3.

  19. New Insight into the Pygmy Dipole Resonance in Stable Nuclei

    SciTech Connect (OSTI)

    Neumann-Cosel, P. von

    2008-11-11

    Two examples of recent work on the structure of low-energy electric dipole modes are presented. The first part discusses the systematics of the pygmy dipole resonance (PDR) in stable tin isotopes deduced from high-resolution ({gamma},{gamma}') experiments. These help to distinguish between microscopic QRPA calculations based on either a relativistic or a nonrelativistic mean-field description, predicting significantly different properties of the PDR. The second part presents attempts to unravel the structure of dipoles modes at energies below the giant dipole resonance (GDR) in {sup 208}Pb with a high-resolution measurement of the (p-vector,p-vector') reaction under 0 deg.

  20. U.S. diesel fuel prices stable from previous week

    Gasoline and Diesel Fuel Update (EIA)

    diesel fuel prices stable from previous week The U.S. average retail price for on-highway diesel fuel fell slightly to $2.91 a gallon on Monday. That's down half a penny from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Diesel prices were highest in the West Coast states at 3.16 a gallon, down 1.1 cents from a week ago. Prices were lowest in the Midwest and Gulf Coast states at 2.80 a gallon.

  1. Topology-Guided Design and Syntheses of Highly Stable Mesoporous

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

    Porphyrinic Zirconium Metal-Organic Frameworks with High Surface Area | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Topology-Guided Design and Syntheses of Highly Stable Mesoporous Porphyrinic Zirconium Metal-Organic Frameworks with High Surface Area Previous Next List Tian-Fu Liu, Dawei Feng, Ying-Pin Chen, Lanfang Zou, Mathieu Bosch, Shuai Yuan, Zhangwen Wei, Stephen Fordham, Kecheng Wang, and Hong-Cai Zhou, J. Am. Chem. Soc. 137, 413-419 (2015) DOI:

  2. An Exceptionally Stable, Porphyrinic Zr Metal-Organic Framework

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

    Exhibiting pH-Dependent Fluorescence | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome An Exceptionally Stable, Porphyrinic Zr Metal-Organic Framework Exhibiting pH-Dependent Fluorescence Previous Next List Hai-Long Jiang, Dawei Feng, Kecheng Wang, Zhi-Yuan Gu, Zhangwen Wei, Ying-Pin Chen, and Hong-Cai Zhou, J. Am. Chem. Soc. 135, 13934-13938 (2013) DOI: 10.1021/ja406844r Abstract Image Abstract: A reaction between a ZrIV salt and a porphyrinic

  3. Overview of Propulsion Materials

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

    Office of Vehicles Technologies Materials Program Jerry Gibbs Technology Development Manager Propulsion Materials Vehicle Technologies Program Overview of Propulsion Materials Project ID PM000 Vehicle Technologies Program eere.energy.gov Materials for Combustion Systems / High Efficiency Engines Turbocharger, Valve Train, Fuel Injection, Structural Components Head/Block, Sensors, Materials/Fuel Compatibility Materials for Exhaust and Energy Recovery DPFs, Catalysts, Thermoelectric Materials,

  4. Materials Project: A Materials Genome Approach

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Ceder, Gerbrand [MIT; Persson, Kristin [LBNL

    Technological innovation - faster computers, more efficient solar cells, more compact energy storage - is often enabled by materials advances. Yet, it takes an average of 18 years to move new materials discoveries from lab to market. This is largely because materials designers operate with very little information and must painstakingly tweak new materials in the lab. Computational materials science is now powerful enough that it can predict many properties of materials before those materials are ever synthesized in the lab. By scaling materials computations over supercomputing clusters, this project has computed some properties of over 80,000 materials and screened 25,000 of these for Li-ion batteries. The computations predicted several new battery materials which were made and tested in the lab and are now being patented. By computing properties of all known materials, the Materials Project aims to remove guesswork from materials design in a variety of applications. Experimental research can be targeted to the most promising compounds from computational data sets. Researchers will be able to data-mine scientific trends in materials properties. By providing materials researchers with the information they need to design better, the Materials Project aims to accelerate innovation in materials research.[copied from http://materialsproject.org/about] You will be asked to register to be granted free, full access.

  5. Dark halos and elliptical galaxies as marginally stable dynamical systems

    SciTech Connect (OSTI)

    El Zant, A. A.

    2013-12-10

    The origin of equilibrium gravitational configurations is sought in terms of the stability of their trajectories, as described by the curvature of their Lagrangian configuration manifold of particle positions—a context in which subtle spurious effects originating from the singularity in the two-body potential become particularly clear. We focus on the case of spherical systems, which support only regular orbits in the collisionless limit, despite the persistence of local exponential instability of N-body trajectories in the anomalous case of discrete point particle representation even as N ? ?. When the singularity in the potential is removed, this apparent contradiction disappears. In the absence of fluctuations, equilibrium configurations generally correspond to positive scalar curvature and thus support stable trajectories. A null scalar curvature is associated with an effective, averaged equation of state describing dynamically relaxed equilibria with marginally stable trajectories. The associated configurations are quite similar to those of observed elliptical galaxies and simulated cosmological halos and are necessarily different from the systems dominated by isothermal cores, expected from entropy maximization in the context of the standard theory of violent relaxation. It is suggested that this is the case because a system starting far from equilibrium does not reach a 'most probable state' via violent relaxation, but that this process comes to an end as the system finds and (settles in) a configuration where it can most efficiently wash out perturbations. We explicitly test this interpretation by means of direct simulations.

  6. Stable zymomonas mobilis xylose and arabinose fermenting strains

    DOE Patents [OSTI]

    Zhang, Min (Lakewood, CO); Chou, Yat-Chen (Taipei, TW)

    2008-04-08

    The present invention briefly includes a transposon for stable insertion of foreign genes into a bacterial genome, comprising at least one operon having structural genes encoding enzymes selected from the group consisting of xylAxylB, araBAD and tal/tkt, and at least one promoter for expression of the structural genes in the bacterium, a pair of inverted insertion sequences, the operons contained inside the insertion sequences, and a transposase gene located outside of the insertion sequences. A plasmid shuttle vector for transformation of foreign genes into a bacterial genome, comprising at least one operon having structural genes encoding enzymes selected from the group consisting of xylAxylB, araBAD and tal/tkt, at least one promoter for expression of the structural genes in the bacterium, and at least two DNA fragments having homology with a gene in the bacterial genome to be transformed, is also provided.The transposon and shuttle vectors are useful in constructing significantly different Zymomonas mobilis strains, according to the present invention, which are useful in the conversion of the cellulose derived pentose sugars into fuels and chemicals, using traditional fermentation technology, because they are stable for expression in a non-selection medium.

  7. Stable, concentrated solutions of polyaniline using amines as gel inhibitors

    DOE Patents [OSTI]

    Wang, Hsing-Lin (Los Alamos, NM); Mattes, Benjamin R. (Tesuque, NM)

    2002-01-01

    Stable, concentrated solutions of high-molecular weight polyaniline using amines as gel inhibitors. Certain amine compounds (gel inhibitors) are used to form highly concentrated, stable solutions of the emeraldine base form of polyaniline in numerous organic solvents from which coatings, films and fibers are readily prepared without problems associated with rapid gelation which occurs when concentrated solutions are attempted without the use of the gel inhibitors of the present invention. Tertiary amines are used to solubilize low-molecular weight fractions (M.sub.w <120,000, M.sub.n <30,000) of the pernigraniline, emeraldine, and leucoemeraldine oxidation states of polyaniline as concentrated (>20 wt. %) polyaniline solutions, while primary and secondary amines are used to produce solutions having 15-40 wt % of high-molecular weight polyaniline [M.sub.w.gtoreq.120,000, M.sub.n.gtoreq.30,000]. Concentrated solutions of polyaniline co-polymers or ring and/or nitrogen-substituted polyanilines may also be prepared.

  8. Disordered Materials Hold Promise for Better Batteries

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

    Disordered materials hold promise for better batteries Disordered Materials Hold Promise for Better Batteries February 21, 2014 Contact: Linda Vu, +1 510 495 2402, lvu@lbl.gov disorderedMAT.jpg Conventional layered lithium and transition metal cathode material (top) and the new disordered material studied by researchers at MIT (bottom) as seen through a scanning transmission electron microscope. Inset images show diagrams of the different structures in these materials. (In the disordered

  9. Metal Hydride Storage Materials | Department of Energy

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

    Storage » Metal Hydride Storage Materials Metal Hydride Storage Materials The Fuel Cell Technologies Office's (FCTO's) metal hydride storage materials research focuses on improving the volumetric and gravimetric capacities, hydrogen adsorption/desorption kinetics, cycle life, and reaction thermodynamics of potential material candidates. Technical Overview Figure shows pressure composition isotherms and van't Hoff traces for metal hydride materials. Metal hydrides (MHx) are the most

  10. Discovery of a meta-stable Al-Sm phase with unknown stoichiometry...

    Office of Scientific and Technical Information (OSTI)

    Discovery of a meta-stable Al-Sm phase with unknown stoichiometry using a genetic algorithm Citation Details In-Document Search Title: Discovery of a meta-stable Al-Sm phase with...

  11. Chapter 6: Materials

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

    : Materials Material Selection Sustainable Building Materials System Integration Issues | Chapter 6 Material Selection Materials The use of durable, attractive, and environmentally responsible building materials is a key element of any high-performance building effort. The use of natural and healthy materials contributes to the well-being of the occupants and to a feeling of connection with the bounty of the natural world. Many construction materials have significant environ- mental impacts from

  12. Chapter 6: Materials

    Broader source: Energy.gov [DOE]

    Chapter 6 of the LANL Sustainable Design Guide contains information on material selection, sustainable building materials, and system integration issues.

  13. MPA Materials Matter February 2016 (Technical Report) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    MPA Materials Matter February 2016 Citation Details In-Document Search Title: MPA Materials Matter February 2016 No abstract provided. Authors: Kippen, Karen Elizabeth 1 + Show ...

  14. Construction of energy-stable projection-based reduced order models

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | DOE PAGES Construction of energy-stable projection-based reduced order models « Prev Next » Title: Construction of energy-stable projection-based reduced order models Our paper aims to unify and extend several approaches for building stable projection-based reduced order models (ROMs) using the energy method and the concept of "energy-stability". Attention is focused on linear time-invariant (LTI) systems. First, an approach for building energy stable Galerkin

  15. Composite material dosimeters

    DOE Patents [OSTI]

    Miller, Steven D. (Richland, WA)

    1996-01-01

    The present invention is a composite material containing a mix of dosimeter material powder and a polymer powder wherein the polymer is transparent to the photon emission of the dosimeter material powder. By mixing dosimeter material powder with polymer powder, less dosimeter material is needed compared to a monolithic dosimeter material chip. Interrogation is done with excitation by visible light.

  16. Ignitor with stable low-energy thermite igniting system

    DOE Patents [OSTI]

    Kelly, Michael D. (West Alexandria, OH); Munger, Alan C. (Miamisburg, OH)

    1991-02-05

    A stable compact low-energy igniting system in an ignitor utilizes two components, an initiating charge and an output charge. The initiating charge is a thermite in ultra-fine powder form compacted to 50-70% of theoretical maximum density and disposed in a cavity of a header of the ignitor adjacent to an electrical ignition device, or bridgewire, mounted in the header cavity. The initiating charge is ignitable by operation of the ignition device in a hot-wire mode. The output charge is a thermite in high-density consoladated form compacted to 90-99% of theoretical maximum density and disposed adjacent to the initiating charge on an opposite end thereof from the electrical ignition device and ignitable by the initiating charge. A sleeve is provided for mounting the output charge to the ignitor header with the initiating charge confined therebetween in the cavity.

  17. Stable laser–plasma accelerators at low densities

    SciTech Connect (OSTI)

    Li, Song; Hafz, Nasr A. M. Mirzaie, Mohammad; Ge, Xulei; Sokollik, Thomas; Chen, Min; Sheng, Zhengming; Zhang, Jie

    2014-07-28

    We report stable laser wakefield acceleration using 17–50 TW laser pulses interacting with 4?mm-long helium gas jet. The initial laser spot size was relatively large (28??m) and the plasma densities were 0.48–2.0?×?10{sup 19?}cm{sup ?3}. High-quality 100–MeV electron beams were generated at the plasma density of 7.5?×?10{sup 18?}cm{sup ?3}, at which the beam parameters (pointing angle, energy spectrum, charge, and divergence angle) were measured and stabilized. At higher densities, filamentation instability of the laser-plasma interaction was observed and it has led to multiple wakefield accelerated electron beams. The experimental results are supported by 2D particle-in-cell simulations. The achievement presented here is an important step toward the use of laser-driven accelerators in real applications.

  18. Method for forming materials

    DOE Patents [OSTI]

    Tolle, Charles R.; Clark, Denis E.; Smartt, Herschel B.; Miller, Karen S.

    2009-10-06

    A material-forming tool and a method for forming a material are described including a shank portion; a shoulder portion that releasably engages the shank portion; a pin that releasably engages the shoulder portion, wherein the pin defines a passageway; and a source of a material coupled in material flowing relation relative to the pin and wherein the material-forming tool is utilized in methodology that includes providing a first material; providing a second material, and placing the second material into contact with the first material; and locally plastically deforming the first material with the material-forming tool so as mix the first material and second material together to form a resulting material having characteristics different from the respective first and second materials.

  19. Xinxiang Zhongtian Guangyuan Material | Open Energy Information

    Open Energy Info (EERE)

    453700 Product: Henan Province-based cathode materials researcher and producer for Lithium secondary batteries. Coordinates: 35.361389, 114.205917 Show Map Loading map......

  20. The Critical Materials Institute | Critical Materials Institute

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

    The Critical Materials Institute Director Alex King, Operations Manager Cynthia Feller, Jenni Brockpahler and Melinda Thach. Photo left to right: CMI Director Alex King, Operations Manager Cynthia Feller, Jenni Brockpahler and Melinda Thach. Not pictured: Carol Bergman. CMI staff phone 515-296-4500, e-mail CMIdirector@ameslab.gov The Critical Materials Institute focuses on technologies that make better use of materials and eliminate the need for materials that are subject to supply disruptions.

  1. About Critical Materials | Critical Materials Institute

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

    About Critical Materials Critical materials are found in many commonly used tools, including batteries, cell phones and vehicles. 10 things you didn't know about critical materials Rare Earths -- The Fraternal Fifteen CMI factsheet What would we do without rare earths? The Ames Laboratory channel on YouTube Timelines related to rare earth elements and materials Other sources of information about rare earths: GE: Understanding rare earth metals, includes links to a whitepaper "Understanding

  2. Materials Science and Technology

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

    MST Materials Science and Technology Providing world-leading, innovative, and agile materials science and technology solutions for national security missions. MST is metallurgy. The Materials Science and Technology Division provides scientific and technical leadership in materials science and technology for Los Alamos National Laboratory. READ MORE MST is engineered materials. The Materials Science and Technology Division provides scientific and technical leadership in materials science and

  3. Stable and metastable nanowires displaying locally controllable properties

    DOE Patents [OSTI]

    Sutter, Eli Anguelova; Sutter, Peter Werner

    2014-11-18

    Vapor-liquid-solid growth of nanowires is tailored to achieve complex one-dimensional material geometries using phase diagrams determined for nanoscale materials. Segmented one-dimensional nanowires having constant composition display locally variable electronic band structures that are determined by the diameter of the nanowires. The unique electrical and optical properties of the segmented nanowires are exploited to form electronic and optoelectronic devices. Using gold-germanium as a model system, in situ transmission electron microscopy establishes, for nanometer-sized Au--Ge alloy drops at the tips of Ge nanowires (NWs), the parts of the phase diagram that determine their temperature-dependent equilibrium composition. The nanoscale phase diagram is then used to determine the exchange of material between the NW and the drop. The phase diagram for the nanoscale drop deviates significantly from that of the bulk alloy.

  4. Ferecrystals: Thermoelectric Materials Poised Between the Crystalline and

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

    Amorphous States | Department of Energy Ferecrystals: Thermoelectric Materials Poised Between the Crystalline and Amorphous States Ferecrystals: Thermoelectric Materials Poised Between the Crystalline and Amorphous States It discusses the preparation of nanostructured compounds with turbostratic disorder Â… called ferecrystals. These new compounds are thermal stable to 650 C, have low thermal and an increased ZT. PDF icon johnson.pdf More Documents & Publications Trends in Thermoelectric

  5. Methods for the fabrication of thermally stable magnetic tunnel junctions

    DOE Patents [OSTI]

    Chang, Y. Austin (Middleton, WI); Yang, Jianhua J. (Madison, WI); Ladwig, Peter F. (Hutchinson, MN)

    2009-08-25

    Magnetic tunnel junctions and method for making the magnetic tunnel junctions are provided. The magnetic tunnel junctions are characterized by a tunnel barrier oxide layer sandwiched between two ferromagnetic layers. The methods used to fabricate the magnetic tunnel junctions are capable of completely and selectively oxidizing a tunnel junction precursor material using an oxidizing gas containing a mixture of gases to provide a tunnel junction oxide without oxidizing the adjacent ferromagnetic materials. In some embodiments the gas mixture is a mixture of CO and CO.sub.2 or a mixture of H.sub.2 and H.sub.2O.

  6. Crystalline mesoporous zirconia catalysts having stable tetragonal pore wall structure

    DOE Patents [OSTI]

    Sachtler, W.M.H.; Huang, Y.Y.

    1998-07-28

    Methods are disclosed for the preparation of new sulfated mesoporous zirconia materials/catalysts with crystalline pore walls of predominantly tetragonal crystal structure, characterized by nitrogen physical sorption measurement, X-ray diffraction, transmission electron microscopy and catalytic tests using n-butane isomerization to iso-butane and alkylation of 1-naphthol with 4-tert-butylstyrene as probe reactions. Sulfate deposition is preferred for the transformation of a mesoporous precursor with amorphous pore walls into a material with crystalline pore walls maintaining the mesoporous characteristics. 17 figs.

  7. Crystalline mesoporous zirconia catalysts having stable tetragonal pore wall structure

    DOE Patents [OSTI]

    Sachtler, Wolfgang M. H.; Huang, Yin-Yan

    1998-01-01

    Methods for the preparation of new sulfated mesoporous zirconia materials/catalysts with crystalline pore walls of predominantly tetragonal crystal structure, characterized by nitrogen physisorption measurement, X-ray diffraction, transmission electron microscopy and catalytic tests using n-butane isomerization to iso-butane and alkylation of 1-naphthol with 4-tert-butylstyrene as probe reactions. Sulfate deposition is preferred for the transformation of a mesoporous precursor with amorphous pore walls into a material with crystalline pore walls maintaining the mesoporous characteristics.

  8. Recent Theoretical Results for Advanced Thermoelectric Materials |

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

    Department of Energy Theoretical Results for Advanced Thermoelectric Materials Recent Theoretical Results for Advanced Thermoelectric Materials Transport theory and first principles calculations applied to oxides, chalcogenides and skutterudite show that transport functions, including the thermopower, can be directly calculated from the electronic structure PDF icon singh.pdf More Documents & Publications Recent Theoretical Results for Advanced Thermoelectric Materials Thermoelectric

  9. Low-dimensional hyperthin FeS2 nanostructures for efficient and stable hydrogen evolution electrocatalysis

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Jasion, Daniel; Qiao, Qiao; Barforoush, Joseph M.; Zhu, Yimei; Ren, Shenqiang; Leonard, Kevin C.

    2015-10-05

    We report a scalable, solution-processing method for synthesizing low-dimensional hyperthin FeS2 nanostructures, and we show that 2D FeS2 disc nanostructures are an efficient and stable hydrogen evolution electrocatalyst. By changing the Fe:S ratio in the precursor solution, we were able to preferentially synthesize either 1D wire or 2D disc nanostructures. The 2D FeS2 disc structure has the highest electrocatalytic activity for the hydrogen evolution reaction, comparable to platinum in neutral pH conditions. Moreover, the ability of the FeS2 nanostructures to generate hydrogen was confirmed by scanning electrochemical microscopy, and the 2D disc nanostructures were able to generate hydrogen for overmore » 125 h.« less

  10. Nanocrystalline ceramic materials

    DOE Patents [OSTI]

    Siegel, Richard W. (Hinsdale, IL); Nieman, G. William (Evanston, IL); Weertman, Julia R. (Evanston, IL)

    1994-01-01

    A method for preparing a treated nanocrystalline metallic material. The method of preparation includes providing a starting nanocrystalline metallic material with a grain size less than about 35 nm, compacting the starting nanocrystalline metallic material in an inert atmosphere and annealing the compacted metallic material at a temperature less than about one-half the melting point of the metallic material.

  11. Materials | Department of Energy

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

    Materials Materials 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Vehicle Technologies Plenary PDF icon vtpn04_schutte_lm_2011_o.pdf More Documents & Publications Overview of Lightweight Materials Lightweight Materials Overview Summary of the Output from the VTP Advanced Materials Workshop

  12. MIXING AND TRANSPORT OF SHORT-LIVED AND STABLE ISOTOPES AND REFRACTORY GRAINS IN PROTOPLANETARY DISKS

    SciTech Connect (OSTI)

    Boss, Alan P.

    2013-08-10

    Analyses of primitive meteorites and cometary samples have shown that the solar nebula must have experienced a phase of large-scale outward transport of small refractory grains as well as homogenization of initially spatially heterogeneous short-lived isotopes. The stable oxygen isotopes, however, were able to remain spatially heterogeneous at the {approx}6% level. One promising mechanism for achieving these disparate goals is the mixing and transport associated with a marginally gravitationally unstable (MGU) disk, a likely cause of FU Orionis events in young low-mass stars. Several new sets of MGU models are presented that explore mixing and transport in disks with varied masses (0.016 to 0.13 M{sub Sun }) around stars with varied masses (0.1 to 1 M{sub Sun }) and varied initial Q stability minima (1.8 to 3.1). The results show that MGU disks are able to rapidly (within {approx}10{sup 4} yr) achieve large-scale transport and homogenization of initially spatially heterogeneous distributions of disk grains or gas. In addition, the models show that while single-shot injection heterogeneity is reduced to a relatively low level ({approx}1%), as required for early solar system chronometry, continuous injection of the sort associated with the generation of stable oxygen isotope fractionations by UV photolysis leads to a sustained, relatively high level ({approx}10%) of heterogeneity, in agreement with the oxygen isotope data. These models support the suggestion that the protosun may have experienced at least one FU Orionis-like outburst, which produced several of the signatures left behind in primitive chondrites and comets.

  13. High stable suspension of magnetite nanoparticles in ethanol by using sono-synthesized nanomagnetite in polyol medium

    SciTech Connect (OSTI)

    Bastami, Tahereh Rohani; Entezari, Mohammad H.

    2013-09-01

    Graphical abstract: - Highlights: • The sonochemical synthesis of magnetite nanoparticles was carried out in EG without any surfactant. • The nanoparticles with sizes ?24 nm were composed of small building blocks with sizes ?2 nm. • The hydrophilic magnetite nanoparticles were stable in ethanol even after 8 months. • Ultrasonic intensity showed a crucial role on the obtained high stable magnetite nanoparticles in ethanol. - Abstract: The sonochemical synthesis of magnetite nanoparticles was carried out at relatively low temperature (80 °C) in ethylene glycol (EG) as a polyol solvent. The particle size was determined by transmission electron microscopy (TEM). The magnetite nanoparticles with an average size of 24 nm were composed of small building blocks with an average size of 2–3 nm and the particles exhibited nearly spherical shape. The surface characterization was investigated by using Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The stability of magnetite nanoparticles was studied in ethanol as a polar solvent. The nanoparticles showed an enhanced stability in ethanol which is due to the hydrophilic surface of the particles. The colloidal stability of magnetite nanoparticles in ethanol was monitored by UV–visible spectrophotometer. According to the results, the nanoparticles synthesized in 30 min of sonication with intensity of 35 W/cm{sup 2} (50%) led to a maximum stability in ethanol as a polar solvent with respect to the other applied intensities. The obtained magnetite nanoparticles were stable for more than12 months.

  14. Further stable neutron star models from f(R) gravity

    SciTech Connect (OSTI)

    Astashenok, Artyom V.; Capozziello, Salvatore; Odintsov, Sergei D. E-mail: capozziello@na.infn.it

    2013-12-01

    Neutron star models in perturbative f(R) gravity are considered with realistic equations of state. In particular, we consider the FPS, SLy and other equations of state and a case of piecewise equation of state for stars with quark cores. The mass-radius relations for f(R) = R+R(e{sup ?R/R{sub 0}}?1) model and for R{sup 2} models with logarithmic and cubic corrections are obtained. In the case of R{sup 2} gravity with cubic corrections, we obtain that at high central densities (? > 10?{sub ns}, where ?{sub ns} = 2.7 × 10{sup 14} g/cm{sup 3} is the nuclear saturation density), stable star configurations exist. The minimal radius of such stars is close to 9 km with maximal mass ? 1.9M{sub ?} (SLy equation). A similar situation takes place for AP4 and BSK20 EoS. Such an effect can give rise to more compact stars than in General Relativity. If observationally identified, such objects could constitute a formidable signature for modified gravity at astrophysical level. Another interesting result can be achieved in modified gravity with only a cubic correction. For some EoS, the upper limit of neutron star mass increases and therefore these EoS can describe realistic star configurations (although, in General Relativity, these EoS are excluded by observational constraints)

  15. Meteorological and pollutant profiles under very stable conditions

    SciTech Connect (OSTI)

    Wesely, M.L.; Coulter, R.L.

    1983-01-01

    The nocturnal boundary layer (NBL) can become very stable, with wind and temperature increasing rapidly with height and a local wind maximum often occurring near the top of the boundary layer. The wind speed, potential temperature, moisture, and ozone profiles in the NBL above flat terrain were studied by Argonne National Laboratory in the early morning and late evening during the Central Illinois Rainfall Convection Experiment (CIRCE) in July, 1979, with sensors carried aloft by a tethered kytoon. One aim was to examine closely the shape of profiles at heights of about 20 to 200 m by taking measurements at closely spaced height intervals. The tethered balloon was held at each level for a time sufficient for all sensors to come to equilibrium with the local atmosphere; this typically required 2 to 5 min at each level. It was possible to detect changes in spatial trends in profiles in real time, so that smaller height intervals could be used if the changes seemed important. As a result, greater resolution was achieved than is normally obtained with instruments attached to towers or to free balloons.

  16. Stable isotope, site-specific mass tagging for protein identification

    DOE Patents [OSTI]

    Chen, Xian

    2006-10-24

    Proteolytic peptide mass mapping as measured by mass spectrometry provides an important method for the identification of proteins, which are usually identified by matching the measured and calculated m/z values of the proteolytic peptides. A unique identification is, however, heavily dependent upon the mass accuracy and sequence coverage of the fragment ions generated by peptide ionization. The present invention describes a method for increasing the specificity, accuracy and efficiency of the assignments of particular proteolytic peptides and consequent protein identification, by the incorporation of selected amino acid residue(s) enriched with stable isotope(s) into the protein sequence without the need for ultrahigh instrumental accuracy. Selected amino acid(s) are labeled with .sup.13C/.sup.15N/.sup.2H and incorporated into proteins in a sequence-specific manner during cell culturing. Each of these labeled amino acids carries a defined mass change encoded in its monoisotopic distribution pattern. Through their characteristic patterns, the peptides with mass tag(s) can then be readily distinguished from other peptides in mass spectra. The present method of identifying unique proteins can also be extended to protein complexes and will significantly increase data search specificity, efficiency and accuracy for protein identifications.

  17. Highly stable tetrathiafulvalene radical dimers in [3]catenanes

    SciTech Connect (OSTI)

    Spruell, Jason M.; Coskun, Ali; Friedman, Douglas C.; Forgan, Ross S.; Sarjeant, Amy A.; Trabolsi, Ali; Fahrenbach, Albert C.; Barin, Gokhan; Paxton, Walter F.; Dey, Sanjeev K.; Olson, Mark A.; Benítez, Diego; Tkatchouk, Ekaterina; Colvin, Michael T.; Carmielli, Raanan; Caldwell, Stuart T.; Rosair, Georgina M.; Hewage, Shanika Gunatilaka; Duclairoir, Florence; Seymour, Jennifer L.; Slawin, Alexandra M.Z.; Goddard, III, William A.; Wasielewski, Michael R.; Cooke, Graeme; Stoddart, J. Fraser

    2010-12-03

    Two [3]catenane 'molecular flasks' have been designed to create stabilized, redox-controlled tetrathiafulvalene (TTF) dimers, enabling their spectrophotometric and structural properties to be probed in detail. The mechanically interlocked framework of the [3]catenanes creates the ideal arrangement and ultrahigh local concentration for the encircled TTF units to form stable dimers associated with their discrete oxidation states. These dimerization events represent an affinity umpolung, wherein the inversion in electronic affinity replaces the traditional TTF-bipyridinium interaction, which is over-ridden by stabilizing mixed-valence (TTF){sub 2}{sup {sm_bullet}+} and radical-cation (TTF{sup {sm_bullet}+}){sub 2} states inside the 'molecular flasks.' The experimental data, collected in the solid state as well as in solution under ambient conditions, together with supporting quantum mechanical calculations, are consistent with the formation of stabilized paramagnetic mixed-valence dimers, and then diamagnetic radical-cation dimers following subsequent one-electron oxidations of the [3]catenanes.

  18. Accelerating Advanced Material Development

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

    Materials Research in the Information Age Accelerating Advanced Material Development NERSC Science Gateway a 'Google of Material Properties' October 31, 2011 Linda Vu, lvu@lbl.gov, +1 510 495 2402 Kristin Persson is one of the founding scientists behind the Materials Project, a computational tool aimed at taking the guesswork out of new materials discoveries, especially those aimed at energy applications like batteries. (Roy Kaltschmidt, LBNL) New materials are crucial to building a clean energy

  19. Materials | Argonne National Laboratory

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

    Materials Innovating tomorrow's materials today New high-tech materials are the key to breakthroughs in biology, the environment, nuclear energy, transportation and national security. Argonne continues to make revolutionary advances in the science of materials discovery and synthesis, and is designing new materials with advantageous properties - one atom at a time. Examples of these include Argonne's patented technologies for nanoparticle applications, heat transfer and materials for advanced

  20. Los Alamos researchers uncover new origins of radiation-tolerant materials

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

    Researchers uncover new origins of radiation-tolerant materials Los Alamos researchers uncover new origins of radiation-tolerant materials A new report this week in the journal Nature Communications provides new insight into what, exactly, makes some complex materials radiation tolerant. November 1, 2015 Los Alamos National Laboratory scientists are exploring how certain materials fall apart under irradiation, while others retain their stable. Both nuclear fuels and nuclear waste storage could

  1. UNCLASSIFIED Institute for Materials ...

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

    Co-ordinator & Visiting Professor Oxford University Materials United Kingdom "Magnetic" Molecular Dynamics and Other Models for Fusion Reactor Materials Tuesday, September 15,...

  2. Materials Science Research | Materials Science | NREL

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

    Science Research For photovoltaics and other energy applications, NREL's primary research in materials science includes the following core competencies. A photo of laser light rays going in various directions atop a corrugated metal substrate Materials Physics Through materials growth and characterization, we seek to understand and control fundamental electronic and optical processes in semiconductors. An image of multiple, interconnecting red and blue particles Electronic Structure Theory We

  3. Materials Discovery across Technological Readiness Levels | Materials

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

    Science | NREL Materials Discovery across Technological Readiness Levels Materials discovery is important across technology readiness levels: basic science, applied research, and device development. Over the past several years, NREL has worked at each of these levels, demonstrating our competence in a broad range of materials discovery problems. Basic Science An image of a triangular diagram with tantalum-cobalt-tin at the top vertex, tantalum at the lower left vertex, and cobalt at the

  4. Mechanical and Electrical Performance of Thermally Stable Au-ZnO films

    SciTech Connect (OSTI)

    Schoeppner, Rachel L.; Goeke, Ronald S.; Moody, Neville R.; Bahr, David F.

    2015-03-28

    The mechanical properties, thermal stability, and electrical performance of Au–ZnO composite thin films are determined in this work. The co-deposition of ZnO with Au via physical vapor deposition leads to grain refinement over that of pure Au; the addition of 0.1 vol.% ZnO reduces the as-grown grain size by over 30%. The hardness of the as-grown films doubles with 2% ZnO, from 1.8 to 3.6 GPa as measured by nanoindentation. Films with ZnO additions greater than 0.5% show no significant grain growth after annealing at 350 °C, while pure gold and smaller additions do exhibit grain growth and subsequent mechanical softening. Films with 1% and 2% ZnO show a decrease of approximately 50% in electrical resistivity and no change in hardness after annealing. A model accounting for both changes in the interface structure between dispersed ZnO particles and the Au matrix captures the changes in mechanical and electrical resistivity. Furthermore, the addition of 1–2% ZnO co-deposited with Au provides a method to create mechanically hard and thermally stable films with a resistivity less than 80 n?-m. Our results complement previous studies of other alloying systems, suggesting oxide dispersion strengthened (ODS) gold shows a desirable hardness–resistivity relationship that is relatively independent of the particular ODS chemistry.

  5. Mechanical and Electrical Performance of Thermally Stable Au-ZnO films

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Schoeppner, Rachel L.; Goeke, Ronald S.; Moody, Neville R.; Bahr, David F.

    2015-03-28

    The mechanical properties, thermal stability, and electrical performance of Au–ZnO composite thin films are determined in this work. The co-deposition of ZnO with Au via physical vapor deposition leads to grain refinement over that of pure Au; the addition of 0.1 vol.% ZnO reduces the as-grown grain size by over 30%. The hardness of the as-grown films doubles with 2% ZnO, from 1.8 to 3.6 GPa as measured by nanoindentation. Films with ZnO additions greater than 0.5% show no significant grain growth after annealing at 350 °C, while pure gold and smaller additions do exhibit grain growth and subsequent mechanicalmore » softening. Films with 1% and 2% ZnO show a decrease of approximately 50% in electrical resistivity and no change in hardness after annealing. A model accounting for both changes in the interface structure between dispersed ZnO particles and the Au matrix captures the changes in mechanical and electrical resistivity. Furthermore, the addition of 1–2% ZnO co-deposited with Au provides a method to create mechanically hard and thermally stable films with a resistivity less than 80 nΩ-m. Our results complement previous studies of other alloying systems, suggesting oxide dispersion strengthened (ODS) gold shows a desirable hardness–resistivity relationship that is relatively independent of the particular ODS chemistry.« less

  6. Metal segregation in hierarchically structured cathode materials for high-energy lithium batteries

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lin, Feng; Xin, Huolin L.; Nordlund, Dennis; Li, Yuyi; Quan, Matthew K.; Cheng, Lei; Weng, Tsu -Chien; Liu, Yijin; Doeff, Marca M.

    2016-01-11

    Controlling surface and interfacial properties of battery materials is key to improving performance in rechargeable Li-ion devices. Surface reconstruction from a layered to a rock salt structure in metal oxide cathode materials is commonly observed and results in poor high-voltage cycling performance, impeding attempts to improve energy density. Hierarchically structured LiNi0.4Mn0.4Co0.2O2 (NMC-442) spherical powders, made by spray pyrolysis, exhibit local elemental distribution gradients that deviate from the global NMC-442 composition; specifically, they are Ni-rich and Mn-poor at particle surfaces. These materials demonstrate improved Coulombic efficiencies, discharge capacities, and high-voltage capacity retention in lithium half-cell configurations. The subject powders show superiormore » resistance against surface reconstruction due to the tailored surface chemistry, compared to conventional NMC-442 materials. This paves the way towards the development of a new generation of robust and stable high-energy NMC cathodes for Li-ion batteries.« less

  7. Mechanically stable, high aspect ratio, multifilar, wound, ribbon-type conductor and method for manufacturing same

    DOE Patents [OSTI]

    Cottingham, James G. (Center Moriches, NY)

    1987-01-01

    A mechanically stable, wound, multifilar, ribbon-type conductor having a cross-sectional aspect ratio which may be greater than 12:1, comprising a plurality of conductive strands wound to form a flattened helix containing a plastic strip into which the strands have been pressed so as to form a bond between the strip and the strands. The bond mechanically stabilizes the conductor under tension, preventing it from collapsing into a tubular configuration. In preferred embodiments the plastic strip may be polytetrafluoroethylene, and the conductive strands may be formed from a superconductive material. Conductors in accordance with the present invention may be manufactured by winding a plurality of conductive strands around a hollow mandrel; the cross-section of a hollow mandrel; the cross-section of the mandrel continuously varying from substantially circular to a high aspect ratio elipse while maintaining a constant circumference. The wound conductive strands are drawn from the mandrel as a multifilar helix while simultaneously a plastic strip is fed through the hollow mandrel so that it is contained within the helix as it is withdrawn from the mandrel. The helical conductor is then compressed into a ribbon-like form and the strands are bonded to the plastic strip by a combination of heat and pressure.

  8. Coated ceramic breeder materials

    DOE Patents [OSTI]

    Tam, Shiu-Wing; Johnson, Carl E.

    1987-01-01

    A breeder material for use in a breeder blanket of a nuclear reactor is disclosed. The breeder material comprises a core material of lithium containing ceramic particles which has been coated with a neutron multiplier such as Be or BeO, which coating has a higher thermal conductivity than the core material.

  9. Tritium breeding materials

    SciTech Connect (OSTI)

    Hollenberg, G.W.; Johnson, C.E.; Abdou, M.

    1984-03-01

    Tritium breeding materials are essential to the operation of D-T fusion facilities. Both of the present options - solid ceramic breeding materials and liquid metal materials are reviewed with emphasis not only on their attractive features but also on critical materials issues which must be resolved.

  10. Hydrogen Compatibility of Materials

    Broader source: Energy.gov [DOE]

    Presentation slides from the Energy Department webinar, Hydrogen Compatibility of Materials, held August 13, 2013.

  11. Corrosion resistant ceramic materials

    DOE Patents [OSTI]

    Kaun, T.D.

    1996-07-23

    Ceramic materials are disclosed which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200--550 C or organic salt (including SO{sub 2} and SO{sub 2}Cl{sub 2}) at temperatures of 25--200 C. These sulfide ceramics form stoichiometric (single-phase) compounds with sulfides of Ca, Li, Na, K, Al, Mg, Si, Y, La, Ce, Ga, Ba, Zr and Sr and show melting-points that are sufficiently low and have excellent wettability with many metals (Fe, Ni, Mo) to easily form metal/ceramic seals. Ceramic compositions are also formulated to adequately match thermal expansion coefficient of adjacent metal components. 1 fig.

  12. Corrosion resistant ceramic materials

    DOE Patents [OSTI]

    Kaun, Thomas D. (320 Willow St., New Lenox, IL 60451)

    1995-01-01

    Ceramic materials which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200.degree.-550.degree. C. or organic salt (including SO.sub.2 and SO.sub.2 Cl.sub.2) at temperatures of 25.degree.-200.degree. C. These sulfide ceramics form stoichiometric (single-phase) compounds with sulfides of Ca, Li, Na, K, Al, Mg, Si, Y, La, Ce, Ga, Ba, Zr and Sr and show melting-points that are sufficiently low and have excellent wettability with many metals (Fe, Ni, Mo) to easily form metal/ceramic seals. Ceramic compositions are also formulated to adequately match thermal expansion coefficient of adjacent metal components.

  13. Corrosion resistant ceramic materials

    DOE Patents [OSTI]

    Kaun, Thomas D. (320 Willow St., New Lenox, IL 60451)

    1996-01-01

    Ceramic materials which exhibit stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200.degree.-550.degree. C. or organic salt (including SO.sub.2 and SO.sub.2 Cl.sub.2) at temperatures of 25.degree.-200.degree. C. These sulfide ceramics form stoichiometric (single-phase) compounds with sulfides of Ca, Li, Na, K, Al, Mg, Si, Y, La, Ce, Ga, Ba, Zr and Sr and show melting-points that are sufficiently low and have excellent wettability with many metals (Fe, Ni, Mo) to easily form metal/ceramic seals. Ceramic compositions are also formulated to adequately match thermal expansion coefficient of adjacent metal components.

  14. Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion

    Office of Scientific and Technical Information (OSTI)

    Dots as Stable and Efficient Down-Conversion Phosphor for LED based Solid State Lighting Kundu, Janardan Los Alamos National Laboratory; Ghosh, Yagnaseni Los Alamos...

  15. Generation of Stable Sub-femtosecond Hard X-ray pulses with Optimized...

    Office of Scientific and Technical Information (OSTI)

    with Optimized Nonlinear Bunch Compression Citation Details In-Document Search Title: Generation of Stable Sub-femtosecond Hard X-ray pulses with Optimized Nonlinear Bunch...

  16. Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion...

    Office of Scientific and Technical Information (OSTI)

    State Lighting Citation Details In-Document Search Title: Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion Phosphor for LED based Solid State Lighting You ...

  17. Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion...

    Office of Scientific and Technical Information (OSTI)

    for LED based Solid State Lighting Citation Details In-Document Search Title: Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion Phosphor for LED based ...

  18. Highly Stable Porphyrinic Zr-MOFs for CO2 Fixation | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Highly Stable Porphyrinic Zr-MOFs for CO2 Fixation

  19. A Stable Zr-Porphyrinic MOF Exhibiting pH-Dependent Fluorescence | Center

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

    for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome A Stable Zr-Porphyrinic MOF Exhibiting pH-Dependent Fluorescence

  20. Thermally Stable Ultra-Low Temperature Oxidation Catalysts

    SciTech Connect (OSTI)

    Szanyi, Janos; Peden, Charles HF; Howden, Ken; Kim, Chang H.; Oh, Se H.; Schmieg, Steven J.

    2014-12-09

    This annual reports describes recent results of a CRADA between General Motors Company (GM) and Battelle/Pacific Northwest National Laboratory (PNNL). In the CRADA, we are investigating a number of candidate low temperature oxidation catalysts as fresh materials, and after realistic laboratory- and engine-aging. These studies will lead to a better understanding of fundamental characteristics and various aging factors that impact the long-term performance of catalysts, while also providing an assessment of the appropriateness of the laboratory conditions in realistically reproducing the effects of actual engine aging conditions.

  1. Materials Analysis and Modeling of Underfill Materials.

    SciTech Connect (OSTI)

    Wyatt, Nicholas B; Chambers, Robert S.

    2015-08-01

    The thermal-mechanical properties of three potential underfill candidate materials for PBGA applications are characterized and reported. Two of the materials are a formulations developed at Sandia for underfill applications while the third is a commercial product that utilizes a snap-cure chemistry to drastically reduce cure time. Viscoelastic models were calibrated and fit using the property data collected for one of the Sandia formulated materials. Along with the thermal-mechanical analyses performed, a series of simple bi-material strip tests were conducted to comparatively analyze the relative effects of cure and thermal shrinkage amongst the materials under consideration. Finally, current knowledge gaps as well as questions arising from the present study are identified and a path forward presented.

  2. Puncture detecting barrier materials

    DOE Patents [OSTI]

    Hermes, Robert E. (Los Alamos, NM); Ramsey, David R. (Bothel, WA); Stampfer, Joseph F. (Santa Fe, NM); Macdonald, John M. (Santa Fe, NM)

    1998-01-01

    A method and apparatus for continuous real-time monitoring of the integrity of protective barrier materials, particularly protective barriers against toxic, radioactive and biologically hazardous materials has been developed. Conductivity, resistivity or capacitance between conductive layers in the multilayer protective materials is measured by using leads connected to electrically conductive layers in the protective barrier material. The measured conductivity, resistivity or capacitance significantly changes upon a physical breach of the protective barrier material.

  3. Nanocrystalline ceramic materials

    DOE Patents [OSTI]

    Siegel, R.W.; Nieman, G.W.; Weertman, J.R.

    1994-06-14

    A method is disclosed for preparing a treated nanocrystalline metallic material. The method of preparation includes providing a starting nanocrystalline metallic material with a grain size less than about 35 nm, compacting the starting nanocrystalline metallic material in an inert atmosphere and annealing the compacted metallic material at a temperature less than about one-half the melting point of the metallic material. 19 figs.

  4. Material Transfer Agreements

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

    Material Transfer Agreements Material Transfer Agreements Enables the transfer of tangible consumable research materials between two organizations, when the recipient intends to use the material for research purposes Contact thumbnail of Marcus Lucero Head of Licensing Marcus Lucero Richard P. Feynman Center for Innovation (505) 665-6569 Email Overview The ability to exchange materials freely and without delay is an important part of a healthy scientific laboratory. Los Alamos National

  5. Materials for the Future

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

    Materials for the Future Materials for the Future The Lab's four Science Pillars harness our scientific capabilities for national security solutions. Contacts Pillar Champion Mary Hockaday Email Pillar Contact Toni Taylor Email Pillar Contact David Teter Email Materials for the Future Science Overview At Los Alamos National Laboratory, we anticipate the advent of a new era in materials science, when we will transition from observing and exploiting the properties of materials to a science-based

  6. Multi Material Paradigm

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

    Multi Material Paradigm Glenn S. Daehn Department of Materials Science and Engineering, The Ohio State University Advanced Composites (FRP) Steel Spaceframe Multi Material Concept Composites Advanced Steel body Coil-coated shell Steel thin wall casting High strength Steels Al-Spaceframe Steel Unibody Stainless Steel Spaceframe Affordability of weight reduction Design Materials Processes Approach Advanced M-Spaceframe L > 2012 Multi Material Paradigm Joining problems and methods f Joining

  7. Chemical Hydrogen Storage Materials

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

    Troy A. Semelsberger Los Alamos National Laboratory Hydrogen Storage Summit Jan 27-29, 2015 Denver, CO Chemical Hydrogen Storage Materials 2 Objectives 1. Assess chemical hydrogen storage materials that can exceed 700 bar compressed hydrogen tanks 2. Status (state-of-the-art) of chemical hydrogen storage materials 3. Identify key material characteristics 4. Identify obstacles, challenges and risks for the successful deployment of chemical hydrogen materials in a practical on-board hydrogen

  8. Materials at the Mesoscale

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

    » Materials at the Mesoscale 1663 Los Alamos science and technology magazine Latest Issue:October 2015 past issues All Issues » submit Materials at the Mesoscale Los Alamos's bold proposal to understand and control material properties December 12, 2015 Materials at the Mesoscale Between the atomic and macro scales lies a gap in our knowledge of materials known as the mesoscale. A gap remains in the understanding of mesoscale properties and responses, especially in extreme temperature,

  9. Puncture detecting barrier materials

    DOE Patents [OSTI]

    Hermes, R.E.; Ramsey, D.R.; Stampfer, J.F.; Macdonald, J.M.

    1998-03-31

    A method and apparatus for continuous real-time monitoring of the integrity of protective barrier materials, particularly protective barriers against toxic, radioactive and biologically hazardous materials has been developed. Conductivity, resistivity or capacitance between conductive layers in the multilayer protective materials is measured by using leads connected to electrically conductive layers in the protective barrier material. The measured conductivity, resistivity or capacitance significantly changes upon a physical breach of the protective barrier material. 4 figs.

  10. The use of carbon stable isotope ratios in drugs characterization

    SciTech Connect (OSTI)

    Magdas, D. A. Cristea, G. Bot, A. Mirel, V.

    2013-11-13

    Isotopic Ratio Mass Spectrometry (IRMS) is an effective toll to be used for drug product authentication. The isotopic composition could be used to assist in the differentiation between batches of drugs and assist in the identification of counterfeit materials on the market. Only two factors affect the isotopic ratios in pharmaceutical components: the isotopic composition of the raw materials and the synthetic processes performed upon them. Counterfeiting of pharmaceutical drugs threatens consumer confidence in drug products companies' economical well-being. In this preliminary study, the analyzed samples consist in two types of commercially available analgesics, which were purchases from Romanian pharmacies. Differences in ?{sup 13}C between batches from ?29.7 to ?31.6% were observed, demonstrating that this method can be used to differentiate among individual drug batches and subsequently identify counterfeits on the market. On the other hand, carbon isotopic ratios differences among producers were recorded, the variations being between ?31.3 to ?34.9% for the same type of analgesic, but from different manufactures.

  11. Center for Nanophase Materials Sciences (CNMS) - Core Materials

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

    Characterization Core materials characterization

  12. CRAD, Packaging and Transfer of Hazardous Materials and Materials...

    Office of Environmental Management (EM)

    Packaging and Transfer of Hazardous Materials and Materials of National Security Interest Assessment Plan CRAD, Packaging and Transfer of Hazardous Materials and Materials of...

  13. Stable isotope signatures for characterising the biological stability of landfilled municipal solid waste

    SciTech Connect (OSTI)

    Wimmer, Bernhard; Hrad, Marlies; Huber-Humer, Marion; Watzinger, Andrea; Wyhlidal, Stefan; Reichenauer, Thomas G.

    2013-10-15

    Highlights: ? The isotopic signature of ?{sup 13}C-DIC of leachates is linked to the reactivity of MSW. ? Isotopic signatures of leachates depend on aerobic/anaerobic conditions in landfills. ? In situ aeration of landfills can be monitored by isotope analysis in leachate. ? The isotopic analysis of leachates can be used for assessing the stability of MSW. ? ?{sup 13}C-DIC of leachates helps to define the duration of landfill aftercare. - Abstract: Stable isotopic signatures of landfill leachates are influenced by processes within municipal solid waste (MSW) landfills mainly depending on the aerobic/anaerobic phase of the landfill. We investigated the isotopic signatures of ?{sup 13}C, ?{sup 2}H and ?{sup 18}O of different leachates from lab-scale experiments, lysimeter experiments and a landfill under in situ aeration. In the laboratory, columns filled with MSW of different age and reactivity were percolated under aerobic and anaerobic conditions. In landfill simulation reactors, waste of a 25 year old landfill was kept under aerobic and anaerobic conditions. The lysimeter facility was filled with mechanically shredded fresh waste. After starting of the methane production the waste in the lysimeter containments was aerated in situ. Leachate and gas composition were monitored continuously. In addition the seepage water of an old landfill was collected and analysed periodically before and during an in situ aeration. We found significant differences in the ?{sup 13}C-value of the dissolved inorganic carbon (?{sup 13}C-DIC) of the leachate between aerobic and anaerobic waste material. During aerobic degradation, the signature of ?{sup 13}C-DIC was mainly dependent on the isotopic composition of the organic matter in the waste, resulting in a ?{sup 13}C-DIC of ?20‰ to ?25‰. The production of methane under anaerobic conditions caused an increase in ?{sup 13}C-DIC up to values of +10‰ and higher depending on the actual reactivity of the MSW. During aeration of a landfill the aerobic degradation of the remaining organic matter caused a decrease to a ?{sup 13}C-DIC of about ?20‰. Therefore carbon isotope analysis in leachates and groundwater can be used for tracing the oxidation–reduction status of MSW landfills. Our results indicate that monitoring of stable isotopic signatures of landfill leachates over a longer time period (e.g. during in situ aeration) is a powerful and cost-effective tool for characterising the biodegradability and stability of the organic matter in landfilled municipal solid waste and can be used for monitoring the progress of in situ aeration.

  14. Enhanced magnetocaloric effect material

    DOE Patents [OSTI]

    Lewis, Laura J. H.

    2006-07-18

    A magnetocaloric effect heterostructure having a core layer of a magnetostructural material with a giant magnetocaloric effect having a magnetic transition temperature equal to or greater than 150 K, and a constricting material layer coated on at least one surface of the magnetocaloric material core layer. The constricting material layer may enhance the magnetocaloric effect by restriction of volume changes of the core layer during application of a magnetic field to the heterostructure. A magnetocaloric effect heterostructure powder comprising a plurality of core particles of a magnetostructural material with a giant magnetocaloric effect having a magnetic transition temperature equal to or greater than 150 K, wherein each of the core particles is encapsulated within a coating of a constricting material is also disclosed. A method for enhancing the magnetocaloric effect within a giant magnetocaloric material including the step of coating a surface of the magnetocaloric material with a constricting material is disclosed.

  15. Joining of dissimilar materials

    DOE Patents [OSTI]

    Tucker, Michael C; Lau, Grace Y; Jacobson, Craig P

    2012-10-16

    A method of joining dissimilar materials having different ductility, involves two principal steps: Decoration of the more ductile material's surface with particles of a less ductile material to produce a composite; and, sinter-bonding the composite produced to a joining member of a less ductile material. The joining method is suitable for joining dissimilar materials that are chemically inert towards each other (e.g., metal and ceramic), while resulting in a strong bond with a sharp interface between the two materials. The joining materials may differ greatly in form or particle size. The method is applicable to various types of materials including ceramic, metal, glass, glass-ceramic, polymer, cermet, semiconductor, etc., and the materials can be in various geometrical forms, such as powders, fibers, or bulk bodies (foil, wire, plate, etc.). Composites and devices with a decorated/sintered interface are also provided.

  16. Predicting crack growth in continuous-fiber composite materials

    SciTech Connect (OSTI)

    Cordes, J.A.; Yazici, R.

    1995-12-31

    Pre-notched composite lamina with unidirectional fibers were studied experimentally and using finite element analysis. Experiments were conducted on notched graphite/aluminum and glass/epoxy panels and the results were compared to a finite element method. Under remote tensile loading, cracks in the graphite/aluminum panels propagated perpendicular to the applied load without stable crack growth. In the glass/epoxy panels, crack propagation was initially stable and parallel to the fibers. A nonlinear damage zone method (DZM) was used to predict the crack growth directions, estimate damages, model stable and unstable crack growths, and predict the loads at failure. For both materials, the predicted loads at failure were within 20% of experimental loads.

  17. Method for forming thermally stable nanoparticles on supports

    DOE Patents [OSTI]

    Roldan Cuenya, Beatriz; Naitabdi, Ahmed R.; Behafarid, Farzad

    2013-08-20

    An inverse micelle-based method for forming nanoparticles on supports includes dissolving a polymeric material in a solvent to provide a micelle solution. A nanoparticle source is dissolved in the micelle solution. A plurality of micelles having a nanoparticle in their core and an outer polymeric coating layer are formed in the micelle solution. The micelles are applied to a support. The polymeric coating layer is then removed from the micelles to expose the nanoparticles. A supported catalyst includes a nanocrystalline powder, thin film, or single crystal support. Metal nanoparticles having a median size from 0.5 nm to 25 nm, a size distribution having a standard deviation .ltoreq.0.1 of their median size are on or embedded in the support. The plurality of metal nanoparticles are dispersed and in a periodic arrangement. The metal nanoparticles maintain their periodic arrangement and size distribution following heat treatments of at least 1,000.degree. C.

  18. Nondestructive material characterization

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID); Johnson, John A. (Idaho Falls, ID); Telschow, Kenneth L. (Idaho Falls, ID)

    1991-01-01

    A method and apparatus for nondestructive material characterization, such as identification of material flaws or defects, material thickness or uniformity and material properties such as acoustic velocity. The apparatus comprises a pulsed laser used to excite a piezoelectric (PZ) transducer, which sends acoustic waves through an acoustic coupling medium to the test material. The acoustic wave is absorbed and thereafter reflected by the test material, whereupon it impinges on the PZ transducer. The PZ transducer converts the acoustic wave to electrical impulses, which are conveyed to a monitor.

  19. Monolithic amplifier with stable, high resistance feedback element and method for fabricating the same

    DOE Patents [OSTI]

    O`Connor, P.

    1998-08-11

    A monolithic amplifier includes a stable, high resistance feedback circuit and a dynamic bias circuit. The dynamic bias circuit is formed with active elements matched to those in the amplifier and feedback circuit to compensate for variations in the operating and threshold voltages thereby maintaining a stable resistance in the feedback circuit. 11 figs.

  20. Using phylogenetic probes for quantification of stable isotope labeling and microbial community analysis

    DOE Patents [OSTI]

    Brodie, Eoin L; DeSantis, Todd Z; Karaoz, Ulas; Andersen, Gary L

    2014-12-09

    Herein is described methods for a high-sensitivity means to measure the incorporation of stable isotope labeled substrates into RNA following stable isotope probing experiments (SIP). RNA is hybridized to a set of probes such as phylogenetic microarrays and isotope incorporation is quantified such as by secondary ion mass spectrometer imaging (NanoSIMS).

  1. EC Transmission Line Materials

    SciTech Connect (OSTI)

    Bigelow, Tim S

    2012-05-01

    The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

  2. Geopolymer Sealing Materials

    Broader source: Energy.gov [DOE]

    DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Develop and characterize field-applicable geopolymer temporary sealing materials in the laboratory and to transfer this developed material technology to geothermal drilling service companies as collaborators for field validation tests.

  3. Nanostructured composite reinforced material

    DOE Patents [OSTI]

    Seals, Roland D. (Oak Ridge, TN); Ripley, Edward B. (Knoxville, TN); Ludtka, Gerard M. (Oak Ridge, TN)

    2012-07-31

    A family of materials wherein nanostructures and/or nanotubes are incorporated into a multi-component material arrangement, such as a metallic or ceramic alloy or composite/aggregate, producing a new material or metallic/ceramic alloy. The new material has significantly increased strength, up to several thousands of times normal and perhaps substantially more, as well as significantly decreased weight. The new materials may be manufactured into a component where the nanostructure or nanostructure reinforcement is incorporated into the bulk and/or matrix material, or as a coating where the nanostructure or nanostructure reinforcement is incorporated into the coating or surface of a "normal" substrate material. The nanostructures are incorporated into the material structure either randomly or aligned, within grains, or along or across grain boundaries.

  4. Cybersecurity Awareness Materials

    Broader source: Energy.gov [DOE]

    The OCIO develops and distributes a variety of materials to enhance cyber awareness campaigns, address emerging cyber threats, and examine hot topics. These materials are available to all DOE organizations, and public and private institutions.

  5. Nuclear Materials Disposition

    Broader source: Energy.gov [DOE]

    In fulfilling its mission, EM frequently manages and completes disposition of surplus nuclear materials and spent nuclear fuel.  These are not waste. They are nuclear materials no longer needed for...

  6. Instructions and Materials

    Broader source: Energy.gov [DOE]

    The following are 2012 Program Peer Review Meeting instructions, materials and resource links for presenters and reviewers.

  7. Materials Physics and Applications

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

    ADEPS » MPA Materials Physics and Applications We develop new technologies that solve pressing national energy and security challenges by exploring and exploiting materials and their properties; developing practical applications of materials, and providing world-class user facilities. Contact Us Division Leader (acting) Michael Hundley Email Deputy Division Leader Rick Martineau Email Chief of Staff Jeff Willis Email Division Office (505) 665-1131 Materials Physics Applications Division

  8. Materials/Condensed Matter

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

    Materials/Condensed Matter Materials/Condensed Matter Print Materials research provides the foundation on which the economic well being of our high-tech society rests. The impact of advanced materials ranges dramatically over every aspect of our modern world from the minutiae of daily life to the grand scale of our national economy. Invariably, however, breakthroughs to new technologies trace their origin both to fundamental research in the basic properties of condensed matter and to applied

  9. ARM - Public Information Materials

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

    govPublicationsPublic Information Materials Publications Journal Articles Conference Documents Program Documents Technical Reports Publications Database Public Information...

  10. HIGH-PERFORMANCE COATING MATERIALS

    SciTech Connect (OSTI)

    SUGAMA,T.

    2007-01-01

    Corrosion, erosion, oxidation, and fouling by scale deposits impose critical issues in selecting the metal components used at geothermal power plants operating at brine temperatures up to 300 C. Replacing these components is very costly and time consuming. Currently, components made of titanium alloy and stainless steel commonly are employed for dealing with these problems. However, another major consideration in using these metals is not only that they are considerably more expensive than carbon steel, but also the susceptibility of corrosion-preventing passive oxide layers that develop on their outermost surface sites to reactions with brine-induced scales, such as silicate, silica, and calcite. Such reactions lead to the formation of strong interfacial bonds between the scales and oxide layers, causing the accumulation of multiple layers of scales, and the impairment of the plant component's function and efficacy; furthermore, a substantial amount of time is entailed in removing them. This cleaning operation essential for reusing the components is one of the factors causing the increase in the plant's maintenance costs. If inexpensive carbon steel components could be coated and lined with cost-effective high-hydrothermal temperature stable, anti-corrosion, -oxidation, and -fouling materials, this would improve the power plant's economic factors by engendering a considerable reduction in capital investment, and a decrease in the costs of operations and maintenance through optimized maintenance schedules.

  11. Critical Materials Workshop

    Broader source: Energy.gov [DOE]

    AMO hosted a public workshop on Tuesday, April 3, 2012 in Arlington, VA to provide background information on critical materials assessment, the current research within DOE related to critical materials, and the foundational aspects of Energy Innovation Hubs. Additionally, the workshop solicited input from the critical materials community on R&D gaps that could be addressed by DOE.

  12. A Google for Materials

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

    Kristin Persson A Google for Materials February 4, 2014 Kirstin Persson, Berkeley Lab Downloads Persson-Materials-NUG2014.pdf | Adobe Acrobat PDF file A Google For Materials? - Kirstin Persson, Berkeley Lab Last edited: 2016-02-01 08:07:07

  13. Advanced neutron absorber materials

    DOE Patents [OSTI]

    Branagan, Daniel J. (Idaho Falls, ID); Smolik, Galen R. (Idaho Falls, ID)

    2000-01-01

    A neutron absorbing material and method utilizing rare earth elements such as gadolinium, europium and samarium to form metallic glasses and/or noble base nano/microcrystalline materials, the neutron absorbing material having a combination of superior neutron capture cross sections coupled with enhanced resistance to corrosion, oxidation and leaching.

  14. Stable microwave coaxial cavity plasma system at atmospheric pressure

    SciTech Connect (OSTI)

    Song, H. [Department of Electrical and Computer Engineering, University of Colorado, Colorado Springs, Colorado 80918 (United States); Hong, J. M.; Lee, K. H. [Plasma Systems and Materials (PSM) Inc., Sungnam-Si, Gyonggi-Do 190-1 (Korea, Republic of); Choi, J. J. [Department of Radio Science and Engineering, Kwangwoon University, Nowon-Gu, Seoul 447-1 (Korea, Republic of)

    2008-05-15

    We present a systematic study of the development of a novel atmospheric microwave plasma system for material processing in the pressure range up to 760 torr and the microwave input power up to 6 kW. Atmospheric microwave plasma was reliably produced and sustained by using a cylindrical resonator with the TM{sub 011} cavity mode. The applicator and the microwave cavity, which is a cylindrical resonator, are carefully designed and optimized with the time dependent finite element Maxwell equation solver. The azimuthal apertures are placed at the maximum magnetic field positions between the cavity and the applicator to maximize the coupling efficiency into the microwave plasma at a resonant frequency of 2.45 GHz. The system consists of a magnetron power supply, a circulator, a directional coupler, a three-stub tuner, a dummy load, a coaxial cavity, and a central cavity. Design and construction of the resonant structures and diagnostics of atmospheric plasma using optical experiments are discussed in various ranges of pressure and microwave input power for different types of gases.

  15. High Rate and Stable Cycling of Lithium Metal Anode

    SciTech Connect (OSTI)

    Qian, Jiangfeng; Henderson, Wesley A.; Xu, Wu; Bhattacharya, Priyanka; Engelhard, Mark H.; Borodin, Oleg; Zhang, Jiguang

    2015-02-20

    Lithium (Li) metal is an ideal anode material for rechargeable batteries. However, dendritic Li growth and limited Coulombic efficiency (CE) during repeated Li deposition/stripping processes have prevented the application of this anode in rechargeable Li metal batteries, especially for use at high current densities. Herein, we report that the use of highly concentrated electrolytes composed of ether solvents and the lithium bis(fluorosulfonyl)imide (LiFSI) salt enables the high rate cycling of a Li metal anode at high CE (up to 99.1 %) without dendrite growth. With 4 M LiFSI in 1,2-dimethoxyethane (DME) as the electrolyte, a Li|Li cell can be cycled at high rates (10 mA cm-2) for more than 6000 cycles with no increase in the cell impedance, and a Cu|Li cell can be cycled at 4 mA cm-2 for more than 1000 cycles with an average CE of 98.4%. These excellent high rate performances can be attributed to the increased solvent coordination and increased availability of Li+ concentration in the electrolyte. Further development of this electrolyte may lead to practical applications for Li metal anode in rechargeable batteries. The fundamental mechanisms behind the high rate ion exchange and stability of the electrolytes also shine light on the stability of other electrochemical systems.

  16. ALS Ceramics Materials Research Advances Engine Performance

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

    ALS Ceramics Materials Research Advances Engine Performance ALS Ceramics Materials Research Advances Engine Performance Print Thursday, 27 September 2012 00:00 ritchie ceramics This 3D image of a ceramic composite specimen imaged under load at 1750C shows the detailed fracture patterns that researchers are able to view using ALS Beamline 8.3.2. The vertical white lines are the individual silicon carbide fibers in this sample about 500 microns in diameter. LBNL senior materials scientist and U.C.

  17. ALS Ceramics Materials Research Advances Engine Performance

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

    ALS Ceramics Materials Research Advances Engine Performance ALS Ceramics Materials Research Advances Engine Performance Print Thursday, 27 September 2012 00:00 ritchie ceramics This 3D image of a ceramic composite specimen imaged under load at 1750C shows the detailed fracture patterns that researchers are able to view using ALS Beamline 8.3.2. The vertical white lines are the individual silicon carbide fibers in this sample about 500 microns in diameter. LBNL senior materials scientist and U.C.

  18. Material Disposal Areas

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

    Material Disposal Areas Material Disposal Areas Material Disposal Areas, also known as MDAs, are sites where material was disposed of below the ground surface in excavated pits, trenches, or shafts. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Material Disposal Areas at LANL The following are descriptions and status updates of each MDA at LANL. To view a current fact sheet on the MDAs, click on LA-UR-13-25837 (pdf).

  19. Research on stable, high-efficiency amorphous silicon multijunction modules. Semiannual subcontract report, 1 March 1993--30 November 1993

    SciTech Connect (OSTI)

    Guha, S.

    1994-03-01

    This report describes the progress made during the first half of Phase III of the R&D program to obtain high-efficiency amorphous silicon alloy multijunction modules. The highlight of the work includes (1) demonstration of the world`s highest initial module efficiency (area of 0.09 m{sup 2}) of 11.4% as confirmed by NREL, and (2) demonstration of stable module efficiency of 9.5% after 1-sun light soaking for 1000 h at 50{degrees}C. In addition, fundamental studies were carried out to improve material properties of the component cells of the multijunction structure and to understand the optical losses associated with the back reflector.

  20. Research on stable, high-efficiency amorphous silicon multijunction modules. Annual subcontract report, 1 December 1991--31 October 1992

    SciTech Connect (OSTI)

    Ghosh, M.; DelCueto, J.: Kampas, F.; Xi, J.

    1993-02-01

    This report describes results from the first phase of a three-phase contract for the development of stable, high-efficiency, same-band-gap, amorphous silicon (a-Si) multijunction photovoltaic (PV) modules. The program involved improving the properties of individual layers of semiconductor and non-semiconductor materials and small-area single-junction and multijunction devices, as well as the multijunction modules. The semiconductor materials research was performed on a-Si p, i, and n layers, and on microcrystalline silicon n layers. These were deposited using plasma-enhanced chemical vapor deposition. The non-semiconductor materials studied were tin oxide, for use as a transparent-conducting-oxide (TCO), and zinc oxide, for use as a back reflector and as a buffer layer between the TCO and the semiconductor layers. Tin oxide was deposited using atmospheric-pressure chemical vapor deposition. Zinc oxide was deposited using magnetron sputtering. The research indicated that the major challenge in the fabrication of a-Si multijunction PV modules is the contact between the two p-i-n cells. A structure that has low optical absorption but that also facilitates the recombination of electrons from the first p-i-n structure with holes from the second p-i-n structure is required. Non-semiconductor layers and a-Si semiconductor layers were tested without achieving the desired result.

  1. LEACHING OF SLAG FROM STEEL RECYCLING: RADIONUCLIDES AND STABLE ELEMENTS. DATA REPORT, JAN.15, 1997, REVISED SEPT.9, 1997

    SciTech Connect (OSTI)

    FUHRMANN,M.SCHOONEN,M.

    2003-07-31

    Of primary importance to this study are releases of radionuclides from slags. However, releases of other constituents also provide valuable information on releases of elements that may be toxic (e.g. Cr) or that may be used as analogs for radionuclides (e.g. K for Cs). In addition, leaching of bulk constituents from the slag gives information on weathering rates of the bulk material that can be used to estimate releases of non-leachable elements. Consequently, we have examined leaching of: radionuclides from those sloags that contain them; bulk elemental constituents of the slags; anionic constituents; trace elements, through spot checks of concentrations in leachates. Analysis by ICP of elemental constituents in leachates from radioactive samples was limited to those leachate samples that contained no detectable radionuclides, to avoid contamination of the ICP. In this data report we present leaching results for five slags that were produced by recycling steel. Two of the slags were generated at facilities that treat radioactively contaminated scrap, consequently the slag contains radionuclides. The slag from the other three was not contaminated. Because of this, we were able to examine the chemical composition of the slag and of the leachate generated during tests of these slags. For these materials we believe that leach rates of the stable elements can be used as analogs for radionuclides if the same steel processing method were used for radioactive material.

  2. Stable-isotope probe of nano-scale mineral-fluid redox interactions

    SciTech Connect (OSTI)

    Kavner, Abby

    2014-11-26

    The project examined how stable isotopes fractionate at an aqueous/solid interface during electrochemical reduction reactions. Measurements in a wide variety of metal deposition systems including Fe, Zn, Li, Mo, and Cu, have led to observations of large isotope fractionations which strongly vary as a function of rate and temperature. For the Fe, Zn, and Li systems, our electrochemical deposition methods provide the largest single-pass fractionation factors that are observed for these systems. Based on these and other experiments and theory showing and predicting significant and rate-dependent fractionations of isotopes at reacting interfaces, we have developed a simple statistical mechanics framework that predicts the kinetic isotope effect accompanying phase transformations in condensed systems. In addition, we have begun to extend our studies of mineral-fluid redox interactions to high pressures and temperatures in the diamond anvil cell. We performed a series of experiments to determine solubilities of Cu and Ni at elevated pressure and temperature conditions relevant to ore-formation.

  3. DUF6 Materials Use Roadmap

    SciTech Connect (OSTI)

    Haire, M.J.

    2002-09-04

    The U.S. government has {approx}500,000 metric tons (MT) of surplus depleted uranium (DU) in various chemical forms stored at U.S. Department of Energy (DOE) sites across the United States. This DU, most of which is DU hexafluoride (DUF{sub 6}) resulting from uranium enrichment operations, is the largest amount of nuclear material in DOE's inventory. On July 6, 1999, DOE issued the ''Final Plan for the Conversion of Depleted Uranium Hexafluoride as required by Public Law 105-204'', in which DOE committed to develop a ''Depleted Uranium Hexafluoride Materials Use Roadmap'' in order to establish a strategy for the products resulting from conversion of DUF{sub 6} to a stable form. This report meets the commitment in the Final Plan by providing a comprehensive roadmap that DOE will use to guide any future research and development activities for the materials associated with its DUF{sub 6} inventory. The Roadmap supports the decision presented in the ''Record of Decision for Long-Term Management and Use of Depleted Uranium Hexafluoride'', namely to begin conversion of the DUF{sub 6} inventory as soon as possible, either to uranium oxide, uranium metal, or a combination of both, while allowing for future uses of as much of this inventory as possible. In particular, the Roadmap is intended to explore potential uses for the DUF{sub 6} conversion products and to identify areas where further development work is needed. It focuses on potential governmental uses of DUF{sub 6} conversion products but also incorporates limited analysis of using the products in the private sector. The Roadmap builds on the analyses summarized in the recent ''Programmatic Environmental Impact Statement for Alternative Strategies for the Long-Term Management and Use of Depleted Uranium Hexafluoride''. It also addresses other surplus DU, primarily in the form of DU trioxide and DU tetrafluoride. The DU-related inventory considered here includes the following: (1) Components directly associated with the DUF{sub 6} presently being stored at gaseous diffusion plant sites in Paducah, Kentucky; Portsmouth, Ohio; and Oak Ridge, Tennessee--470,500 MT of DU, 225,000 MT of fluorine chemically combined with the DU, and 74,000 MT of carbon steel comprising the storage cylinders; (2) Approximately 27,860 MT of DU in the form of uranium trioxide, tetrafluoride, and various other forms containing varying amounts of radioactive and chemical impurities, presently stored primarily at DOE's Savannah River Site. This Roadmap characterizes and analyzes alternative paths for eventual disposition of these materials, identifies the barriers that exist to implementing the paths, and makes recommendations concerning the activities that should be undertaken to overcome the barriers. The disposition paths considered in this roadmap and shown in Fig. ES.1 are (a) implementation of cost-effective and institutionally feasible beneficial uses of DU using the products of DUF{sub 6} conversion and other forms of DU in DOE's inventory, (b) processing the fluorine product resulting from DUF{sub 6} conversion to yield an optimal mix of valuable fluorine compounds [e.g., hydrogen fluoride (hydrofluoric acid), boron trifluoride] for industrial use, and (c) processing emptied cylinders to yield intact cylinders that are suitable for reuse, while maintaining an assured and cost-effective direct disposal path for all of the DU-related materials. Most paths consider the potential beneficial use of the DU and other DUF{sub 6} conversion products for the purpose of achieving overall benefits, including cost savings to the federal government, compared with simply disposing of the materials. However, the paths provide for assured direct disposal of these products if cost-effective and institutionally feasible beneficial uses are not found.

  4. SU-E-T-264: Preliminary Results On New Optically Stimulated Luminescent Materials for Proton Therapy Dosimetry

    SciTech Connect (OSTI)

    Doull, B; Zheng, Y; Yukihara, E

    2014-06-01

    Purpose: The objective of this work is to test the premise that luminescence materials with less under-response to proton beams can be identified by testing their dose response to low-LET radiation. The goal is to develop new Optically Stimulated Luminescence (OSL) materials with improved response for proton therapy dosimetry. Methods: We first measured the dose response of new OSL materials, synthesized in our laboratory, to low-LET radiation (beta rays from a {sup 90}Sr/{sup 90}Y source) and selected two materials having different OSL saturation characteristics and good dosimetric properties, namely MgB4O7:Ce,Li and MgO:Li. Commercial Al2O3:C was also used for comparison. These materials were then irradiated at several depths along a pristine proton beam. The luminescence responses of the materials, relative to the entrance response, were compared with the depth dose profile measured by a multiple-layer ion chamber. Results: The OSL signals of MgB4O7:Ce,Li and MgO:Li were characterized for signal stability, dose response, and response to a clinical proton beam. The materials were also compared with the commercial Al2O3:C. The signals from both MgB4O7:Ce,Li and MgO:Li were relatively stable after a one day delay following irradiation. The low-LET dose response of the materials showed that, over the dose range investigated (up to ?800 Gy), MgB4O7:Ce,Li did not saturate, whereas MgO:Li and Al2O3:C saturated at doses of ?100 Gy. MgB4O7:Ce,Li showed less underresponse to proton beams than MgO:Li and Al2O3:C. Conclusion: In general the material with the highest saturation doses for low-LET radiation (MgB4O7:Ce,Li) showed the least under-response to proton beams, which suggests that it may be possible to develop better OSL materials for proton dosimetry if the dose response can be controlled during synthesis. Nevertheless, the degree in which the response to proton beams can be controlled remains to be determined. The research is funded by the Oklahoma Center for the Advancement of Science and Technology (OCAST), project number HR12-055.

  5. FUNCTIONALIZED SILICA AEROGELS: ADVANCED MATERIALS TO CAPTURE AND IMMOBILIZE RADIOACTIVE IODINE

    SciTech Connect (OSTI)

    Matyas, Josef; Fryxell, Glen E.; Busche, Brad J.; Wallace, Krys; Fifield, Leonard S.

    2011-11-16

    To support the future expansion of nuclear energy, an effective method is needed to capture and safely store radiological iodine-129 released during reprocessing of spent nuclear fuel. Various materials have been investigated to capture and immobilize iodine. In most cases, however, the materials that are effective for capturing iodine cannot subsequently be sintered/densified to create a stable composite that could be a viable waste form. We have developed chemically modified, highly porous, silica aerogels that show sorption capacities higher than 440 mg of I2 per gram at 150 C. An iodine uptake test in dry air containing 4.2 ppm of iodine demonstrated no breakthrough after 3.5 h and indicated a decontamination factor in excess of 310. Preliminary densification tests showed that the I2-loaded aerogels retained more than 92 wt% of I2 after thermal sintering with pressure assistance at 1200 C for 30 min. These high capture and retention efficiencies for I2 can be further improved by optimizing the functionalization process and the chemistry as well as the sintering conditions.

  6. Surfactant-induced assembly of enzymatically-stable peptide hydrogels

    SciTech Connect (OSTI)

    Jones, Brad H.; Martinez, Alina M.; Wheeler, Jill S.; Spoerke, Erik D.

    2015-04-07

    The secondary structure of peptides in the presence of interacting additives is an important topic of study, having implications in the application of peptide science to a broad range of modern technologies. Surfactants constitute a class of biologically relevant compounds that are known to influence both peptide conformation and aggregation or assembly. In addition, we have characterized the secondary structure of a linear nonapeptide composed of a hydrophobic alanine/phenylalanine core flanked by hydrophilic acid/amine units. We show that the anionic surfactant sodium dodecyl sulfate (SDS) induces the formation of ?-sheets and macroscopic gelation in this otherwise unstructured peptide. Through comparison to related additives, we propose that SDS-induced secondary structure formation is the result of amphiphilicity created by electrostatic binding of SDS to the peptide. In addition, we demonstrate a novel utility of surfactants in manipulating and stabilizing peptide nanostructures. SDS is used to simultaneously induce secondary structure in a peptide and to inhibit the activity of a model enzyme, resulting in a peptide hydrogel that is impervious to enzymatic degradation. These results complement our understanding of the behavior of peptides in the presence of interacting secondary molecules and provide new potential pathways for programmable organization of peptides by the addition of such components.

  7. Surfactant-induced assembly of enzymatically-stable peptide hydrogels

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Jones, Brad H.; Martinez, Alina M.; Wheeler, Jill S.; Spoerke, Erik D.

    2015-04-07

    The secondary structure of peptides in the presence of interacting additives is an important topic of study, having implications in the application of peptide science to a broad range of modern technologies. Surfactants constitute a class of biologically relevant compounds that are known to influence both peptide conformation and aggregation or assembly. In addition, we have characterized the secondary structure of a linear nonapeptide composed of a hydrophobic alanine/phenylalanine core flanked by hydrophilic acid/amine units. We show that the anionic surfactant sodium dodecyl sulfate (SDS) induces the formation of β-sheets and macroscopic gelation in this otherwise unstructured peptide. Through comparisonmore » to related additives, we propose that SDS-induced secondary structure formation is the result of amphiphilicity created by electrostatic binding of SDS to the peptide. In addition, we demonstrate a novel utility of surfactants in manipulating and stabilizing peptide nanostructures. SDS is used to simultaneously induce secondary structure in a peptide and to inhibit the activity of a model enzyme, resulting in a peptide hydrogel that is impervious to enzymatic degradation. These results complement our understanding of the behavior of peptides in the presence of interacting secondary molecules and provide new potential pathways for programmable organization of peptides by the addition of such components.« less

  8. Earth-Abundant Materials | Department of Energy

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

    Photovoltaics » Earth-Abundant Materials Earth-Abundant Materials Graphic showing the five layers of a CZTS PV cell: Mo-coated substrate, CZTS light absorber, n- CdS, i-ZnO, and transparent conductive oxide. DOE funds research into Earth-abundant materials for thin-film solar applications in response to the issue of materials scarcity surrounding other photovoltaic (PV) technologies. The sections below contain a list of the projects, summary of the benefits, and discussion on the production and

  9. Nuclear Materials Science

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

    16 Nuclear Materials Science Our multidisciplinary expertise comprises the core actinide materials science and metallurgical capability within the nuclear weapons production and surveillance communities. Contact Us Group Leader David Pugmire (acting) Email Group Office (505) 667-4665 The evaluations performed by our group are essential for the nuclear weapons program as well as nuclear materials storage, forensics, and actinide fundamental science. The evaluations performed by our group are

  10. Absolute nuclear material assay

    DOE Patents [OSTI]

    Prasad, Manoj K.; Snyderman, Neal J.; Rowland, Mark S.

    2010-07-13

    A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.

  11. Absolute nuclear material assay

    DOE Patents [OSTI]

    Prasad, Manoj K.; Snyderman, Neal J.; Rowland, Mark S.

    2012-05-15

    A method of absolute nuclear material assay of an unknown source comprising counting neutrons from the unknown source and providing an absolute nuclear material assay utilizing a model to optimally compare to the measured count distributions. In one embodiment, the step of providing an absolute nuclear material assay comprises utilizing a random sampling of analytically computed fission chain distributions to generate a continuous time-evolving sequence of event-counts by spreading the fission chain distribution in time.

  12. Materials/Condensed Matter

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

    Materials/Condensed Matter Print Materials research provides the foundation on which the economic well being of our high-tech society rests. The impact of advanced materials ranges dramatically over every aspect of our modern world from the minutiae of daily life to the grand scale of our national economy. Invariably, however, breakthroughs to new technologies trace their origin both to fundamental research in the basic properties of condensed matter and to applied research aimed at manipulating

  13. ANS materials databook

    SciTech Connect (OSTI)

    Marchbanks, M.F.

    1995-08-01

    Technical development in the Advanced Neutron Source (ANS) project is dynamic, and a continuously updated information source is necessary to provide readily usable materials data to the designer, analyst, and materials engineer. The Advanced Neutron Source Materials Databook (AMBK) is being developed as a part of the Advanced Neutron Source Materials Information System (AMIS). Its purpose is to provide urgently needed data on a quick-turnaround support basis for those design applications whose schedules demand immediate estimates of material properties. In addition to the need for quick materials information, there is a need for consistent application of data throughout the ANS Program, especially where only limited data exist. The AMBK is being developed to fill this need as well. It is the forerunner to the Advanced Neutron Source Materials Handbook (AMHB). The AMHB, as reviewed and approved by the ANS review process, will serve as a common authoritative source of materials data in support of the ANS Project. It will furnish documented evidence of the materials data used in the design and construction of the ANS system and will serve as a quality record during any review process whose objective is to establish the safety level of the ANS complex. The information in the AMBK and AMHB is also provided in electronic form in a dial-up computer database known as the ANS Materials Database (AMDB). A single consensus source of materials information prepared and used by all national program participants has several advantages. Overlapping requirements and data needs of various sub-projects and subcontractors can be met by a single document which is continuously revised. Preliminary and final safety analysis reports, stress analysis reports, equipment specifications, materials service reports, and many other project-related documents can be substantially reduced in size and scope by appropriate reference to a single data source.

  14. Critical Materials Strategy Summary

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

    Critical Materials Strategy Summary 2010 T he United States is on the cusp of a clean energy rev- olution. In its first Critical Materials Strategy, the U.S. Department of Energy (DOE) focuses on materials used in four clean energy technologies: wind turbines, elec- tric vehicles, solar cells and energy-efficient lighting (Table 1). The Strategy evaluates the extent to which widespread deployment of these technologies may increase worldwide demand for rare earth elements and certain other

  15. Materials in the news

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

    News Materials in the news Discover more about the wide-ranging scope of materials research at Los Alamos National Laboratory. Contact Us ADEPS Communications Email Scientists Aditya Mohite, left, and Wanyi Nie are perfecting a crystal production technique to improve perovskite crystal production for solar cells Scientists Aditya Mohite, left, and Wanyi Nie are perfecting a crystal production technique to improve perovskite crystal production for solar cells Read more... Materials science at Los

  16. Stable water isotope simulation by current land-surface schemes:Results of IPILPS phase 1

    SciTech Connect (OSTI)

    Henderson-Sellers, A.; Fischer, M.; Aleinov, I.; McGuffie, K.; Riley, W.J.; Schmidt, G.A.; Sturm, K.; Yoshimura, K.; Irannejad, P.

    2005-10-31

    Phase 1 of isotopes in the Project for Intercomparison of Land-surface Parameterization Schemes (iPILPS) compares the simulation of two stable water isotopologues ({sup 1}H{sub 2} {sup 18}O and {sup 1}H{sup 2}H{sup 16}O) at the land-atmosphere interface. The simulations are off-line, with forcing from an isotopically enabled regional model for three locations selected to offer contrasting climates and ecotypes: an evergreen tropical forest, a sclerophyll eucalypt forest and a mixed deciduous wood. Here we report on the experimental framework, the quality control undertaken on the simulation results and the method of intercomparisons employed. The small number of available isotopically-enabled land-surface schemes (ILSSs) limits the drawing of strong conclusions but, despite this, there is shown to be benefit in undertaking this type of isotopic intercomparison. Although validation of isotopic simulations at the land surface must await more, and much more complete, observational campaigns, we find that the empirically-based Craig-Gordon parameterization (of isotopic fractionation during evaporation) gives adequately realistic isotopic simulations when incorporated in a wide range of land-surface codes. By introducing two new tools for understanding isotopic variability from the land surface, the Isotope Transfer Function and the iPILPS plot, we show that different hydrological parameterizations cause very different isotopic responses. We show that ILSS-simulated isotopic equilibrium is independent of the total water and energy budget (with respect to both equilibration time and state), but interestingly the partitioning of available energy and water is a function of the models' complexity.

  17. Radiation Safety Training Materials

    Broader source: Energy.gov [DOE]

    The following Handbooks and Standard provide recommended hazard specific training material for radiological workers at DOE facilities and for various activities.

  18. Management of Nuclear Materials

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2009-08-17

    To establish requirements for the lifecycle management of DOE owned and/or managed accountable nuclear materials. Cancels DOE O 5660.1B.

  19. Composite of refractory material

    DOE Patents [OSTI]

    Holcombe, C.E.; Morrow, M.S.

    1994-07-19

    A composite refractory material composition comprises a boron carbide matrix and minor constituents of yttrium-boron-oxygen-carbon phases uniformly distributed throughout the boron carbide matrix.

  20. Work with Biological Materials

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

    Work with Biological Materials Print Planning A complete Experiment Safety Sheet (ESS) is required before work can be done at the ALS. This ESS is either a part of the proposal process or may be completed as an independent document. In the ESS, identify each material (including all biological materials) with which you will be working. The regulatory oversight for biological work is very complicated and we need to understand the risk levels involved with the material you plan to use at the ALS,

  1. Radioactive Material Transportation Practices

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2002-09-23

    Establishes standard transportation practices for Departmental programs to use in planning and executing offsite shipments of radioactive materials including radioactive waste. Does not cancel other directives.

  2. Work with Biological Materials

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

    Work with Biological Materials Print Planning A complete Experiment Safety Sheet (ESS) is required before work can be done at the ALS. This ESS is either a part of the proposal process or may be completed as an independent document. In the ESS, identify each material (including all biological materials) with which you will be working. The regulatory oversight for biological work is very complicated and we need to understand the risk levels involved with the material you plan to use at the ALS,

  3. Composite of refractory material

    DOE Patents [OSTI]

    Holcombe, Cressie E. (Knoxville, TN); Morrow, Marvin S. (Kingston, TN)

    1994-01-01

    A composite refractory material composition comprises a boron carbide matrix and minor constituents of yttrium-boron-oxygen-carbon phases uniformly distributed throughout the boron carbide matrix.

  4. Critical Materials Workshop

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

    Critical Materials Workshop U.S. Department of Energy April 3, 2012 eere.energy.gov Dr. Leo Christodoulou Program Manager Advanced Manufacturing Office Energy Efficiency and...

  5. High Risk Material Studies

    Broader source: Energy.gov [DOE]

    Spent Fuel Working Group Report on inventory and storage of the Department's spent nuclear fuel and other reactor irradiated nuclear materials and their environmental, safety and health vulnerabilities.

  6. Material Safety Data Sheets

    Broader source: Energy.gov [DOE]

    Material Safety Data Sheets (MSDSs) provide workers and emergency personnel with ways for handling and working with a hazardous substance and other health and safety information.

  7. UNCLASSIFIED Institute for Materials ...

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

    properties. In this talk, I will discuss our recent research in the area of nanoscale materials modeling, using various atomistic simulation techniques, aimed at uncovering the...

  8. Thermoelectric materials having porosity

    DOE Patents [OSTI]

    Heremans, Joseph P.; Jaworski, Christopher M.; Jovovic, Vladimir; Harris, Fred

    2014-08-05

    A thermoelectric material and a method of making a thermoelectric material are provided. In certain embodiments, the thermoelectric material comprises at least 10 volume percent porosity. In some embodiments, the thermoelectric material has a zT greater than about 1.2 at a temperature of about 375 K. In some embodiments, the thermoelectric material comprises a topological thermoelectric material. In some embodiments, the thermoelectric material comprises a general composition of (Bi.sub.1-xSb.sub.x).sub.u(Te.sub.1-ySe.sub.y).sub.w, wherein 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, 1.8.ltoreq.u.ltoreq.2.2, 2.8.ltoreq.w.ltoreq.3.2. In further embodiments, the thermoelectric material includes a compound having at least one group IV element and at least one group VI element. In certain embodiments, the method includes providing a powder comprising a thermoelectric composition, pressing the powder, and sintering the powder to form the thermoelectric material.

  9. Resources | Critical Materials Institute

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

    Resources The Critical Materials Institute offers connections to resources, including: List of resources U.S. Rare Earth Magnet Patents Table Government agency contacts CMI unique...

  10. Vehicle Technologies Office Merit Review 2014: Thermally Stable Ultra-Low Temperature Oxidation Catalysts

    Broader source: Energy.gov [DOE]

    Presentation given by [company name] at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about thermally stable ultra-low...

  11. Forensic Applications of Light-Element Stable Isotope Ratios of Ricinus communis Seeds and Ricin Preparations

    SciTech Connect (OSTI)

    Kreuzer, Helen W.; West, Jason B.; Ehleringer, James

    2013-01-01

    Seeds of the castor plant Ricinus communis, also known as castor beans, are of forensic interest because they are the source of the poison ricin. We have tested whether stable isotope ratios of castor seeds and ricin prepared by various methods can be used as a forensic signature. We collected over 300 castor seed samples from locations around the world and measured the C, N, O, and H stable isotope ratios of the whole seeds, oil, and three types of ricin preparations. Our results demonstrate that N isotope ratios can be used to correlate ricin prepared by any of these methods to source seeds. Further, stable isotope ratios distinguished >99% of crude and purified ricin protein samples in pair-wise comparison tests. Stable isotope ratios therefore constitute a valuable forensic signature for ricin preparations.

  12. Topology Guided Design and Syntheses of Stable Mesoporous MOFs with High

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

    Surface Area | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Topology Guided Design and Syntheses of Stable Mesoporous MOFs with High Surface Area

  13. FY 2008 Progress Report for Lightweighting Materials - 12. Materials...

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

    2. Materials Crosscutting Research and Development FY 2008 Progress Report for ... Lightweighting Materials focuses on the development and validation of advanced materials ...

  14. FY 2009 Progress Report for Lightweighting Materials - 12. Materials...

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

    Materials - 12. Materials Crosscutting Research and Development Overview of Lightweight Materials Technical Cost Modeling - Life Cycle Analysis Basis for Program Focus

  15. A Small, Clean, Stable Fusion Power Plant ---- Inventor Samuel A. Cohen |

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

    Princeton Plasma Physics Lab Small, Clean, Stable Fusion Power Plant ---- Inventor Samuel A. Cohen This invention discloses improvements in magnetic fusion reactor design and operational modes that reduce stability and radioactivity problems by use of a kinetic-regime high-beta device that burns aneutronic fuels, particularly D-3He. The small, clean stable fusion power plant, based on the Field Reverse Configuration, operates in the 5-megawatt range and would have applications in distributed

  16. Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion

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

    Phosphor for LED based Solid State Lighting (Technical Report) | SciTech Connect Technical Report: Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion Phosphor for LED based Solid State Lighting Citation Details In-Document Search Title: Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion Phosphor for LED based Solid State Lighting Authors: Kundu, Janardan [1] ; Ghosh, Yagnaseni [1] ; Dennis, Allison M. [1] ; Htoon, Han [1] ; Hollingsworth, Jennifer A

  17. Generation of Stable Sub-femtosecond Hard X-ray pulses with Optimized

    Office of Scientific and Technical Information (OSTI)

    Nonlinear Bunch Compression (Journal Article) | SciTech Connect Generation of Stable Sub-femtosecond Hard X-ray pulses with Optimized Nonlinear Bunch Compression Citation Details In-Document Search Title: Generation of Stable Sub-femtosecond Hard X-ray pulses with Optimized Nonlinear Bunch Compression Authors: Huang, Senlin ; /Peking U., Heavy Ion Phys. ; Ding, Yuantao ; Huang, Zhirong ; /SLAC ; Qiang, Ji ; /LBNL, Berkeley Publication Date: 2014-10-21 OSTI Identifier: 1160308 Report

  18. Generation of stable subfemtosecond hard x-ray pulses with optimized

    Office of Scientific and Technical Information (OSTI)

    nonlinear bunch compression (Journal Article) | SciTech Connect stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression Citation Details In-Document Search Title: Generation of stable subfemtosecond hard x-ray pulses with optimized nonlinear bunch compression Authors: Huang, Senlin ; Ding, Yuantao ; Huang, Zhirong ; Qiang, Ji Publication Date: 2014-12-15 OSTI Identifier: 1181562 Grant/Contract Number: 2011CB808301; AC02-05CH11231; AC02-76SF00515 Type: Published

  19. Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion

    Office of Scientific and Technical Information (OSTI)

    Phosphor for LED based Solid State Lighting (Technical Report) | SciTech Connect Technical Report: Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion Phosphor for LED based Solid State Lighting Citation Details In-Document Search Title: Giant Nanocrystal Quantum Dots as Stable and Efficient Down-Conversion Phosphor for LED based Solid State Lighting Authors: Kundu, Janardan [1] ; Ghosh, Yagnaseni [1] ; Dennis, Allison M. [1] ; Htoon, Han [1] ; Hollingsworth, Jennifer A

  20. Highly Stable Porous Polymer Networks with Exceptionally High Gas-Uptake

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

    Capacities | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Highly Stable Porous Polymer Networks with Exceptionally High Gas-Uptake Capacities Previous Next List Daqiang Yuan, Weigang Lu, Dan Zhao, Hong-Cai Zhou, Adv. Mater., 23: 3723-3725 (2011) DOI: 10.1002/adma.201101759 mcontent.jpg Abstract: Highly stable porous polymer networks (PPNs) are synthesized through Yamamoto homocoupling reaction between tetrahedral monomers. Among those polymers, PPN-4

  1. Thermally Stable Electrolyte For Li-ion Cells. (Conference) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect Thermally Stable Electrolyte For Li-ion Cells. Citation Details In-Document Search Title: Thermally Stable Electrolyte For Li-ion Cells. Abstract not provided. Authors: Nagasubramanian, Ganesan ; Orendorff, Christopher J. Publication Date: 2011-09-01 OSTI Identifier: 1106400 Report Number(s): SAND2011-7083C 464734 DOE Contract Number: AC04-94AL85000 Resource Type: Conference Resource Relation: Conference: The Knowledge Foundation's 2nd Annual International Conference held November

  2. Reactive transport modeling of stable carbon isotope fractionation in a multi-phase multi-component system during carbon sequestration

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Zhang, Shuo; DePaolo, Donald J.; Zheng, Liange; Mayer, Bernhard

    2014-12-31

    Carbon stable isotopes can be used in characterization and monitoring of CO2 sequestration sites to track the migration of the CO2 plume and identify leakage sources, and to evaluate the chemical reactions that take place in the CO2-water-rock system. However, there are few tools available to incorporate stable isotope information into flow and transport codes used for CO2 sequestration problems. We present a numerical tool for modeling the transport of stable carbon isotopes in multiphase reactive systems relevant to geologic carbon sequestration. The code is an extension of the reactive transport code TOUGHREACT. The transport module of TOUGHREACT was modifiedmore » to include separate isotopic species of CO2 gas and dissolved inorganic carbon (CO2, CO32-, HCO3-,…). Any process of transport or reaction influencing a given carbon species also influences its isotopic ratio. Isotopic fractionation is thus fully integrated within the dynamic system. The chemical module and database have been expanded to include isotopic exchange and fractionation between the carbon species in both gas and aqueous phases. The performance of the code is verified by modeling ideal systems and comparing with theoretical results. Efforts are also made to fit field data from the Pembina CO2 injection project in Canada. We show that the exchange of carbon isotopes between dissolved and gaseous carbon species combined with fluid flow and transport, produce isotopic effects that are significantly different from simple two-component mixing. These effects are important for understanding the isotopic variations observed in field demonstrations.« less

  3. Reactive transport modeling of stable carbon isotope fractionation in a multi-phase multi-component system during carbon sequestration

    SciTech Connect (OSTI)

    Zhang, Shuo [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); DePaolo, Donald J. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Zheng, Liange [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Mayer, Bernhard [Univ. of Calgary (Canada). Dept. of Geosciences

    2014-12-31

    Carbon stable isotopes can be used in characterization and monitoring of CO2 sequestration sites to track the migration of the CO2 plume and identify leakage sources, and to evaluate the chemical reactions that take place in the CO2-water-rock system. However, there are few tools available to incorporate stable isotope information into flow and transport codes used for CO2 sequestration problems. We present a numerical tool for modeling the transport of stable carbon isotopes in multiphase reactive systems relevant to geologic carbon sequestration. The code is an extension of the reactive transport code TOUGHREACT. The transport module of TOUGHREACT was modified to include separate isotopic species of CO2 gas and dissolved inorganic carbon (CO2, CO32-, HCO3-,…). Any process of transport or reaction influencing a given carbon species also influences its isotopic ratio. Isotopic fractionation is thus fully integrated within the dynamic system. The chemical module and database have been expanded to include isotopic exchange and fractionation between the carbon species in both gas and aqueous phases. The performance of the code is verified by modeling ideal systems and comparing with theoretical results. Efforts are also made to fit field data from the Pembina CO2 injection project in Canada. We show that the exchange of carbon isotopes between dissolved and gaseous carbon species combined with fluid flow and transport, produce isotopic effects that are significantly different from simple two-component mixing. These effects are important for understanding the isotopic variations observed in field demonstrations.

  4. Hanford Landfill Reaches 15 Million Tons Disposed- Waste Disposal Mark Shows Success Cleaning Up River Corridor

    Broader source: Energy.gov [DOE]

    RICHLAND, Wash. – The U.S. Department of Energy (DOE) and its contractors have disposed of 15 million tons of contaminated material at the Environmental Restoration Disposal Facility (ERDF) since the facility began operations in 1996.

  5. Characterization and Electrochemical Performance of SubstitutedLiNi0.4Co0.2-yAlyMn0.4O2 (0<_y<_0.2) Cathode Materials

    SciTech Connect (OSTI)

    Wilcox, James D.; Doeff, Marca M.

    2007-11-28

    A complete series of LiNi0.4Co0.2-yAlyMn0.4O2 (0<_y<_0.2) materials have been synthesized and investigated as cathode materials for lithium ion batteries. When cycled between 2.0 and 4.3 V vs. Li/Li+ at a current density of 0.1 mA/cm2, stable capacities of ~;;160 mAh/g for y=0 to ~;;110 mAh/g for y=0.2 are achieved. Upon increasing the current density, it is found that all materials containing aluminum show reduced polarization and improved rate performance. The optimal performance at all current densities was found for the compound with y=0.05. The effect of aluminumsubstitution on the crystal structure of the host is discussed.

  6. Hydrocarbonaceous material upgrading method

    DOE Patents [OSTI]

    Brecher, Lee E.; Mones, Charles G.; Guffey, Frank D.

    2015-06-02

    A hydrocarbonaceous material upgrading method may involve a novel combination of heating, vaporizing and chemically reacting hydrocarbonaceous feedstock that is substantially unpumpable at pipeline conditions, and condensation of vapors yielded thereby, in order to upgrade that feedstock to a hydrocarbonaceous material condensate that meets crude oil pipeline specification.

  7. Measurements and material accounting

    SciTech Connect (OSTI)

    Hammond, G.A. )

    1989-11-01

    The DOE role for the NBL in safeguarding nuclear material into the 21st century is discussed. Development of measurement technology and reference materials supporting requirements of SDI, SIS, AVLIS, pyrochemical reprocessing, fusion, waste storage, plant modernization program, and improved tritium accounting are some of the suggested examples.

  8. Procurement and Materials Management

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

    Procurement and Materials Management U.S. Department of Energy | Who We Are | Current Requests for Proposal | Requests for Information | Expression of Interest | Subcontractor Information | Small Business Home Washington River Protection Solutions | Hanford.gov | Energy.gov Procurement and Materials Management Small Business Resources Small Business Calendar Terms & Conditions Procedures to Subcontractors Instructions Forms Vendor Registration Solicitations Small Bus. Events Procedures

  9. Energy Materials Network

    Broader source: Energy.gov [DOE]

    High performance materials hold the key to innovation in many critical clean energy technologies. But with ambitious national targets to reduce America’s carbon footprint, advanced materials’ traditional 15-20 years-to-market timeframe isn’t keeping pace with America’s goals to achieve a clean energy economy. Through the Energy Materials Network (EMN), the Energy Department is taking a different approach to materials research and development (R&D) that aims to solve industry’s toughest clean energy materials challenges. EMN’s targeted, growing network of consortia led by the Energy Department’s national labs is better integrating all phases of R&D, from discovery through deployment, and facilitating industry access to its national laboratories’ capabilities, tools, and expertise to accelerate the materials development cycle and enable U.S. manufacturers to deliver innovative, made-in-America products to the world market. This effort supports the President’s Materials Genome Initiative, which is working to discover, manufacture, and deploy advanced materials twice as fast, at a fraction of the cost. EMN also supports the recommendations of the Advanced Manufacturing Partnership 2.0, a working group with leaders from industry, academia, and labor, which highlighted the importance of producing advanced materials for technologies critical to U.S. competitiveness in manufacturing.

  10. Nanocrystalline heterojunction materials

    DOE Patents [OSTI]

    Elder, Scott H.; Su, Yali; Gao, Yufei; Heald, Steve M.

    2003-07-15

    Mesoporous nanocrystalline titanium dioxide heterojunction materials are disclosed. In one disclosed embodiment, materials comprising a core of titanium dioxide and a shell of a molybdenum oxide exhibit a decrease in their photoadsorption energy as the size of the titanium dioxide core decreases.

  11. Nanocrystalline Heterojunction Materials

    DOE Patents [OSTI]

    Elder, Scott H. (Portland, OR); Su, Yali (Richland, WA); Gao, Yufei (Blue Bell, PA); Heald, Steve M. (Downers Grove, IL)

    2004-02-03

    Mesoporous nanocrystalline titanium dioxide heterojunction materials and methods of making the same are disclosed. In one disclosed embodiment, materials comprising a core of titanium dioxide and a shell of a molybdenum oxide exhibit a decrease in their photoadsorption energy as the size of the titanium dioxide core decreases.

  12. Sandia Energy - Wavelength Conversion Materials

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

    Wavelength Conversion Materials Home Energy Research EFRCs Solid-State Lighting Science EFRC Overview Wavelength Conversion Materials Wavelength Conversion MaterialsTara...

  13. Patent: Electrode material comprising graphene-composite materials in a

    Office of Scientific and Technical Information (OSTI)

    graphite network | DOEpatents Electrode material comprising graphene-composite materials in a graphite network Citation Details Title: Electrode material comprising graphene-composite materials in a graphite network

  14. Materials of Gasification

    SciTech Connect (OSTI)

    2005-09-15

    The objective of this project was to accumulate and establish a database of construction materials, coatings, refractory liners, and transitional materials that are appropriate for the hardware and scale-up facilities for atmospheric biomass and coal gasification processes. Cost, fabricability, survivability, contamination, modes of corrosion, failure modes, operational temperatures, strength, and compatibility are all areas of materials science for which relevant data would be appropriate. The goal will be an established expertise of materials for the fossil energy area within WRI. This would be an effort to narrow down the overwhelming array of materials information sources to the relevant set which provides current and accurate data for materials selection for fossil fuels processing plant. A significant amount of reference material on materials has been located, examined and compiled. The report that describes these resources is well under way. The reference material is in many forms including texts, periodicals, websites, software and expert systems. The most important part of the labor is to refine the vast array of available resources to information appropriate in content, size and reliability for the tasks conducted by WRI and its clients within the energy field. A significant has been made to collate and capture the best and most up to date references. The resources of the University of Wyoming have been used extensively as a local and assessable location of information. As such, the distribution of materials within the UW library has been added as a portion of the growing document. Literature from recent journals has been combed for all pertinent references to high temperature energy based applications. Several software packages have been examined for relevance and usefulness towards applications in coal gasification and coal fired plant. Collation of the many located resources has been ongoing. Some web-based resources have been examined.

  15. An Assessment of the Current Day Impact of Various Materials Associated with the U.S. Nuclear Test Program in the Marshall Island

    SciTech Connect (OSTI)

    Robison, W L; Noshkin, V E; Hamilton, T F; Conrado, C L; Bogen, K T

    2001-05-01

    Different stable elements, and some natural and man-made radionuclides, were used as tracers or associated in other ways with nuclear devices that were detonated at Bikini and Enewetak Atolls as part of the U.S. nuclear testing program from 1946 through 1958. The question has been raised whether any of these materials dispersed by the explosions could be of sufficient concentration in either the marine environment or on the coral islands to be of a health concern to people living, or planning to live, on the atolls. This report addresses that concern. An inventory of the materials involved during the test period was prepared and provided to us by the Office of Defense Programs (DP) of the United States Department of Energy (DOE). The materials that the DOE and the Republic of the Marshall Islands (RMI) ask to be evaluated are--sulfur, arsenic, yttrium, tantalum, gold, rhodium, indium, tungsten, thallium, thorium-230,232 ({sup 230,232}Th), uranium-233,238 ({sup 233,238}U), polonium-210 ({sup 210}Po), curium-232 ({sup 232}Cu), and americium-241 ({sup 241}Am). The stable elements were used primarily as tracers for determining neutron energy and flux, and for other diagnostic purposes in the larger yield, multistage devices. It is reasonable to assume that these materials would be distributed in a similar manner as the fission products subsequent to detonation. A large inventory of fission product and uranium data was available for assessment. Detailed calculations show only a very small fraction of the fission products produced during the entire test series remain at the test site atolls. Consequently, based on the information provided, we conclude that the concentration of these materials in the atoll environment pose no adverse health effects to humans.

  16. Cured composite materials for reactive metal battery electrolytes

    DOE Patents [OSTI]

    Harrup, Mason K.; Stewart, Frederick F.; Peterson, Eric S.

    2006-03-07

    A solid molecular composite polymer-based electrolyte is made for batteries, wherein silicate compositing produces a electrolytic polymer with a semi-rigid silicate condensate framework, and then mechanical-stabilization by radiation of the outer surface of the composited material is done to form a durable and non-tacky texture on the electrolyte. The preferred ultraviolet radiation produces this desirable outer surface by creating a thin, shallow skin of crosslinked polymer on the composite material. Preferably, a short-duration of low-medium range ultraviolet radiation is used to crosslink the polymers only a short distance into the polymer, so that the properties of the bulk of the polymer and the bulk of the molecular composite material remain unchanged, but the tough and stable skin formed on the outer surface lends durability and processability to the entire composite material product.

  17. FY 2008 Progress Report for Lightweighting Materials - 12. Materials

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

    Crosscutting Research and Development | Department of Energy 2. Materials Crosscutting Research and Development FY 2008 Progress Report for Lightweighting Materials - 12. Materials Crosscutting Research and Development Lightweighting Materials focuses on the development and validation of advanced materials and manufacturing technologies to reduce automobile weight without compromising other attributes. PDF icon 12_materials_crosscutting_rd.pdf More Documents & Publications FY 2009

  18. Horizontal-Velocity and Variance Measurements in the Stable Boundary Layer Using Doppler Lidar: Sensitivity to Averaging Procedures

    SciTech Connect (OSTI)

    Pichugina, Yelena L.; Banta, Robert M.; Kelley, Neil D.; Jonkman, Bonnie J.; Tucker, Sara C.; Newsom, Rob K.; Brewer, W. A.

    2008-08-01

    Quantitative data on turbulence variables aloft--above the region of the atmosphere conveniently measured from towers--has been an important but difficult measurement need for advancing understanding and modeling of the stable boundary layer (SBL). Vertical profiles of streamwise velocity variances obtained from NOAA’s High Resolution Doppler Lidar (HRDL), which have been shown to be numerically equivalent to turbulence kinetic energy (TKE) for stable conditions, are a measure of the turbulence in the SBL. In the present study, the mean horizontal wind component U and variance ?u2 were computed from HRDL measurements of the line-of-sight (LOS) velocity using a technique described in Banta, et al. (2002). The technique was tested on datasets obtained during the Lamar Low-Level Jet Project (LLLJP) carried out in early September 2003, near the town of Lamar in southeastern Colorado. This paper compares U with mean wind speed obtained from sodar and sonic anemometer measurements. It then describes several series of averaging tests that produced the best correlation between TKE calculated from sonic anemometer data at several tower levels and lidar measurements of horizontal velocity variance ?u2. The results show high correlation (0.71-0.97) of the mean U and average wind speed measured by sodar and in-situ instruments, independent of sampling strategies and averaging procedures. Comparison of estimates of variance, on the other hand, proved sensitive to both the spatial and temporal averaging techniques.

  19. Electrically conductive composite material

    DOE Patents [OSTI]

    Clough, R.L.; Sylwester, A.P.

    1989-05-23

    An electrically conductive composite material is disclosed which comprises a conductive open-celled, low density, microcellular carbon foam filled with a non-conductive polymer or resin. The composite material is prepared in a two-step process consisting of first preparing the microcellular carbon foam from a carbonizable polymer or copolymer using a phase separation process, then filling the carbon foam with the desired non-conductive polymer or resin. The electrically conductive composites of the present invention has a uniform and consistent pattern of filler distribution, and as a result is superior over prior art materials when used in battery components, electrodes, and the like. 2 figs.

  20. Nuclear materials management overview

    SciTech Connect (OSTI)

    DiGiallonardo, D.A. )

    1988-01-01

    The true goal of Nuclear Materials MANAGEMENT (NMM) is the strategical and economical management of all nuclear materials. Nuclear Materials Management's role involves near-term and long-term planning, reporting, forecasting, and reviewing of inventories. This function is administrative in nature. it is a growing area in need of future definition, direction, and development. Improvements are required in program structure, the way residues and wastes are determined, how ''what is and what if'' questions are handled, and in overall decision-making methods.

  1. Nuclear materials management overview

    SciTech Connect (OSTI)

    DiGiallonardo, D.A.

    1988-01-01

    The true goal of Nuclear Materials Management (NMM) is the strategical and economical management of all nuclear materials. Nuclear Materials Management's role involves near-term and long-term planning, reporting, forecasting, and reviewing of inventories. This function is administrative in nature. It is a growing area in need of future definition, direction, and development. Improvements are required in program structure, the way residues and wastes are determined, how /open quotes/What is and what if/close quotes/ questions are handled, and in overall decision-making methods. 2 refs.

  2. Electrically conductive composite material

    DOE Patents [OSTI]

    Clough, R.L.; Sylwester, A.P.

    1988-06-20

    An electrically conductive composite material is disclosed which comprises a conductive open-celled, low density, microcellular carbon foam filled with a non-conductive polymer or resin. The composite material is prepared in a two-step process consisting of first preparing the microcellular carbon foam from a carbonizable polymer or copolymer using a phase separation process, then filling the carbon foam with the desired non-conductive polymer or resin. The electrically conductive composites of the present invention has a uniform and consistent pattern of filler distribution, and as a result is superior over prior art materials when used in battery components, electrodes, and the like. 2 figs.

  3. Electrically conductive composite material

    DOE Patents [OSTI]

    Clough, Roger L. (Albuquerque, NM); Sylwester, Alan P. (Albuquerque, NM)

    1989-01-01

    An electrically conductive composite material is disclosed which comprises a conductive open-celled, low density, microcellular carbon foam filled with a non-conductive polymer or resin. The composite material is prepared in a two-step process consisting of first preparing the microcellular carbon foam from a carbonizable polymer or copolymer using a phase separation process, then filling the carbon foam with the desired non-conductive polymer or resin. The electrically conductive composites of the present invention has a uniform and consistant pattern of filler distribution, and as a result is superior over prior art materials when used in battery components, electrodes, and the like.

  4. Critical Materials Hub

    Broader source: Energy.gov [DOE]

    Critical materials, including some rare earth elements that possess unique magnetic, catalytic, and luminescent properties, are key resources needed to manufacture products for the clean energy economy. These materials are so critical to the technologies that enable wind turbines, solar panels, electric vehicles, and energy-efficient lighting that DOE's 2010 and 2011 Critical Materials Strategy reported that supply challenges for five rare earth metals—dysprosium, neodymium, terbium, europium, and yttrium—could affect clean energy technology deployment in the coming years.1, 2

  5. Coupled Environmental Processes in the Mojave Desert and Implications for ET Covers as Stable Landforms

    SciTech Connect (OSTI)

    D. Shafer; M. Y oung; S. Zitzer; E. McDonald; T. Caldwell

    2006-01-18

    Monolayer evapotranspiration (ET) covers are the baseline method for closure of disposal sites for low-level radioactive waste (LLW), mixed LLW, and transuranic (TRU) waste at the Nevada Test Site (NTS). The regulatory timeline is typically 1,000 years for LLW and 10,000 years for TRU waste. Covers for such waste have different technical considerations than those with shorter timelines because they are subject to environmental change for longer periods of time, and because the environmental processes are often coupled. To evaluate these changes, four analog sites (approximately 30, 1,000 to 2,000, 7,000 to 12,500, and 125,000 years in age) on the NTS were analyzed to address the early post-institutional control period (the youngest site), the 1,000-year compliance period for disposal of LLW, and the 10,000-year period for TRU waste. Tests included soil texture, structure, and morphology; surface soil infiltration and hydraulic conductivity; vegetation and faunal surveys; and literature reviews. Separate measurements were made in plant undercanopy and intercanopy areas. The results showed a progressive increase in silt and clay content of surface soils with age. Changes in soil texture and structure led to a fivefold decline in saturated hydraulic conductivity in intercanopy areas, but no change in undercanopies, which were subject to bioturbation. These changes may have been responsible for the reduction in total plant cover, most dramatically in intercanopy areas, primarily because more precipitation either runs off the site or is held nearer to the surface where plant roots are less common. The results suggest that covers may evolve over longer timeframes to stable landforms that minimize the need for active maintenance.

  6. Synthesis and characterization of thermally stable large-pore mesoporous nanocrystallineanatase

    SciTech Connect (OSTI)

    Ermokhina, Natalia I.; Nevinskiy, Vitaly A.; Manorik, Piotr A.; Ilyin, Vladimir G.; Novichenko, Viktor N.; Shcherbatiuk, Mykola M.; Klymchuk, Dmitro O.; Tsyba, Mykola M.; Puziy, Alexander M.

    2013-04-15

    Thermally stable mesoporous nanocrystalline TiO{sub 2} with a pure anatase structure was obtained by sol–gel synthesis (in combination with hydrothermal treatment) using titanium tetrabutoxide and dibenzo-18-crown-6 as a structure-directing agent in presence of surfactant and/or La{sup 3+} ions additives. Nanocrystalline TiO{sub 2} demonstrates various textures with a well-defined spherical morphology (micro- and nanospheres), a crystallite size of no greater than 10 nm (XRD), and a narrow pore size distribution. Spherical particles of micrometer scale in the presence of La{sup 3+} ions do not form. TiO{sub 2} calcined (at 500 °C) after hydrothermal treatment (at 175 °C) has a significantly more developed porous structure as compared with TiO{sub 2} which was not treated hydrothermally. For example, specific surface area amounts 137 m{sup 2} g{sup ?1} and 69 m{sup 2} g{sup ?1}, pore volume 0.98 cm{sup 3} g{sup ?1} and 0.21 cm{sup 3} g{sup ?1}, pore diameter 17.5 nm and 12.5 nm respectively for samples hydrothermally treated and not treated. - Graphical abstract: Large-pore mesoporous nanocristalline anatase. Highlights: ? Large-pore mesoporous nanocrystalline TiO{sub 2} was obtained by sol–gel synthesis. ? Crown ether was used as template in presence of surfactant and/or La{sup 3+} ions. ? Anatase (crystalline size<11 nm) is the only crystalline phase present in TiO{sub 2}. ? TiO{sub 2} shows well-defined homogeneous spherical morphology (micro- and nano-spheres)

  7. Carbonaceous materials as lithium intercalation anodes

    SciTech Connect (OSTI)

    Tran, T.D.; Feikert, J.H.; Mayer, S.T.; Song, X.; Kinoshita, K.

    1994-10-01

    Commercial and polymer-derived carbonaceous materials were examined as lithium intercalation anodes in propylene carbonate (pyrolysis < 1350C, carbons) and ethylene carbonate/dimethyl carbonate (graphites) electrolytes. The reversible capacity (180--355 mAh/g) and the irreversible capacity loss (15--200 % based on reversible capacity) depend on the type of binder, carbon type, morphology, and phosphorus doping concentration. A carbon-based binder was chosen for electrode fabrication, producing mechanically and chemically stable electrodes and reproducible results. Several types of graphites had capacity approaching LiC{sub 6}. Petroleum fuel green cokes doped with phosphorous gave more than a 20 % increase in capacity compared to undoped samples. Electrochemical characteristics are related to SEM, TEM, XRD and BET measurements.

  8. Materials at LANL

    SciTech Connect (OSTI)

    Taylor, Antoinette J

    2010-01-01

    Exploring the physics, chemistry, and metallurgy of materials has been a primary focus of Los Alamos National Laboratory since its inception. In the early 1940s, very little was known or understood about plutonium, uranium, or their alloys. In addition, several new ionic, polymeric, and energetic materials with unique properties were needed in the development of nuclear weapons. As the Laboratory has evolved, and as missions in threat reduction, defense, energy, and meeting other emerging national challenges have been added, the role of materials science has expanded with the need for continued improvement in our understanding of the structure and properties of materials and in our ability to synthesize and process materials with unique characteristics. Materials science and engineering continues to be central to this Laboratory's success, and the materials capability truly spans the entire laboratory - touching upon numerous divisions and directorates and estimated to include >1/3 of the lab's technical staff. In 2006, Los Alamos and LANS LLC began to redefine our future, building upon the laboratory's established strengths and promoted by strongly interdependent science, technology and engineering capabilities. Eight Grand Challenges for Science were set forth as a technical framework for bridging across capabilities. Two of these grand challenges, Fundamental Understanding of Materials and Superconductivity and Actinide Science. were clearly materials-centric and were led out of our organizations. The complexity of these scientific thrusts was fleshed out through workshops involving cross-disciplinary teams. These teams refined the grand challenge concepts into actionable descriptions to be used as guidance for decisions like our LDRD strategic investment strategies and as the organizing basis for our external review process. In 2008, the Laboratory published 'Building the Future of Los Alamos. The Premier National Security Science Laboratory,' LA-UR-08-1541. This document introduced three strategic thrusts that crosscut the Grand Challenges and define future laboratory directions and facilities: (1) Information Science and Technology enabl ing integrative and predictive science; (2) Experimental science focused on materials for the future; and (3) Fundamental forensic science for nuclear, biological, and chemical threats. The next step for the Materials Capability was to develop a strategic plan for the second thrust, Materials for the Future. within the context of a capabilities-based Laboratory. This work has involved extending our 2006-2007 Grand Challenge workshops, integrating materials fundamental challenges into the MaRIE definition, and capitalizing on the emerging materials-centric national security missions. Strategic planning workshops with broad leadership and staff participation continued to hone our scientific directions and reinforce our strength through interdependence. By the Fall of 2008, these workshops promoted our primary strength as the delivery of Predictive Performance in applications where Extreme Environments dominate and where the discovery of Emergent Phenomena is a critical. These planning efforts were put into action through the development of our FY10 LDRD Strategic Investment Plan where the Materials Category was defined to incorporate three central thrusts: Prediction and Control of Performance, Extreme Environments and Emergent Phenomena. As with all strategic planning, much of the benefit is in the dialogue and cross-fertilization of ideas that occurs during the process. By winter of 2008/09, there was much agreement on the evolving focus for the Materials Strategy, but there was some lingering doubt over Prediction and Control of Performance as one of the three central thrusts, because it overarches all we do and is, truly, the end goal for materials science and engineering. Therefore, we elevated this thrust within the overarching vision/mission and introduce the concept of Defects and Interfaces as a central thrust that had previously been implied but not clearly articulated.

  9. Overview of VTO Material Technologies

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

    Overview of VTO Material Technologies Stephen Goguen, Jerry Gibbs, Carol Schutte, and Will Joost LM000 June 9, 2015 VEHICLE TECHNOLOGIES OFFICE eere.energy.gov 2 | Vehicle Technologies Program Materials Technologies Materials Technologies $35.6 M Lightweight Materials $28.5 M Values are FY15 enacted Propulsion Materials $7.1 M Properties and Manufacturing Multi-Material Enabling Modeling & Computational Mat. Sci. Engine Materials, Cast Al & Fe High Temp Alloys Exhaust Sys. Materials,

  10. Vehicle Technologies Office - Materials Technologies

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

    Vehicle Technologies Office Materials Technologies Ed Owens Jerry Gibbs Will Joost eere.energy.gov 2 | Vehicle Technologies Program Materials Technologies Materials Technologies $36.9 M Lightweight Materials $28.0 M Values are FY14 enacted Propulsion Materials $8.9 M Properties and Manufacturing Multi-Material Enabling Modeling & Computational Mat. Sci. Engine Materials, Cast Al & Fe High Temp Alloys Exhaust Sys. Materials, Low T Catalysts Lightweight Propulsion FY13 Enacted $27.5 M

  11. Reactor Materials | Department of Energy

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

    Reactor Materials Reactor Materials The reactor materials crosscut effort will enable the development of innovative and revolutionary materials and provide broad-based, modern materials science that will benefit all four DOE-NE objectives. This will be accomplished through innovative materials development, promoting the use of modern materials science and establishing new, shared research partnerships. Research into specific degradation modes or material needs unique to a particular reactor

  12. MPA Materials Matter July 2014 (Technical Report) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    MPA Materials Matter July 2014 Citation Details In-Document Search Title: MPA Materials Matter July 2014 Authors: Kippen, Karen Elizabeth 1 + Show Author Affiliations Los Alamos...

  13. Zip is not in file but shows on EUR | OpenEI Community

    Open Energy Info (EERE)

    Zip is not in file but shows on EUR Home > Groups > Utility Rate Hello, I was looking up electricity providers for the zipcode 90050. While it shows a result using the tool at...

  14. Catalyzed Ceramic Burner Material

    SciTech Connect (OSTI)

    Barnes, Amy S., Dr.

    2012-06-29

    Catalyzed combustion offers the advantages of increased fuel efficiency, decreased emissions (both NOx and CO), and an expanded operating range. These performance improvements are related to the ability of the catalyst to stabilize a flame at or within the burner media and to combust fuel at much lower temperatures. This technology has a diverse set of applications in industrial and commercial heating, including boilers for the paper, food and chemical industries. However, wide spread adoption of catalyzed combustion has been limited by the high cost of precious metals needed for the catalyst materials. The primary objective of this project was the development of an innovative catalyzed burner media for commercial and small industrial boiler applications that drastically reduce the unit cost of the catalyzed media without sacrificing the benefits associated with catalyzed combustion. The scope of this program was to identify both the optimum substrate material as well as the best performing catalyst construction to meet or exceed industry standards for durability, cost, energy efficiency, and emissions. It was anticipated that commercial implementation of this technology would result in significant energy savings and reduced emissions. Based on demonstrated achievements, there is a potential to reduce NOx emissions by 40,000 TPY and natural gas consumption by 8.9 TBtu in industries that heavily utilize natural gas for process heating. These industries include food manufacturing, polymer processing, and pulp and paper manufacturing. Initial evaluation of commercial solutions and upcoming EPA regulations suggests that small to midsized boilers in industrial and commercial markets could possibly see the greatest benefit from this technology. While out of scope for the current program, an extension of this technology could also be applied to catalytic oxidation for volatile organic compounds (VOCs). Considerable progress has been made over the course of the grant period in accomplishing these objectives. Our work in the area of Pd-based, methane oxidation catalysts has led to the development of highly active catalysts with relatively low loadings of Pd metal using proprietary coating methods. The thermal stability of these Pd-based catalysts were characterized using SEM and BET analyses, further demonstrating that certain catalyst supports offer enhanced stability toward both PdO decomposition and/or thermal sintering/growth of Pd particles. When applied to commercially available fiber mesh substrates (both metallic and ceramic) and tested in an open-air burner, these catalyst-support chemistries showed modest improvements in the NOx emissions and radiant output compared to uncatalyzed substrates. More significant, though, was the performance of the catalyst-support chemistries on novel media substrates. These substrates were developed to overcome the limitations that are present with commercially available substrate designs and increase the gas-catalyst contact time. When catalyzed, these substrates demonstrated a 65-75% reduction in NOx emissions across the firing range when tested in an open air burner. In testing in a residential boiler, this translated into NOx emissions of <15 ppm over the 15-150 kBtu/hr firing range.

  15. Two New Studies Show How Energy Consumers Respond to Smart Grid Technology

    Energy Savers [EERE]

    | Department of Energy New Studies Show How Energy Consumers Respond to Smart Grid Technology Two New Studies Show How Energy Consumers Respond to Smart Grid Technology February 14, 2011 - 3:24pm Addthis Home-energy display mobile phone application that shows how much energy an appliance is consuming. | Photo courtesy of Pecan Street Project. Home-energy display mobile phone application that shows how much energy an appliance is consuming. | Photo courtesy of Pecan Street Project. Matt

  16. Management of Nuclear Materials

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1994-05-26

    To establish requirements and procedures for the management of nuclear materials within the Department of Energy (DOE). Cancels DOE 5660.1A. Canceled by DOE O 410.2.

  17. Electrically conductive material

    DOE Patents [OSTI]

    Singh, Jitendra P. (Bollingbrook, IL); Bosak, Andrea L. (Burnam, IL); McPheeters, Charles C. (Woodridge, IL); Dees, Dennis W. (Woodridge, IL)

    1993-01-01

    An electrically conductive material for use in solid oxide fuel cells, electrochemical sensors for combustion exhaust, and various other applications possesses increased fracture toughness over available materials, while affording the same electrical conductivity. One embodiment of the sintered electrically conductive material consists essentially of cubic ZrO.sub.2 as a matrix and 6-19 wt. % monoclinic ZrO.sub.2 formed from particles having an average size equal to or greater than about 0.23 microns. Another embodiment of the electrically conductive material consists essentially at cubic ZrO.sub.2 as a matrix and 10-30 wt. % partially stabilized zirconia (PSZ) formed from particles having an average size of approximately 3 microns.

  18. Cookoff of energetic materials

    SciTech Connect (OSTI)

    Baer, M.R.; Hobbs, M.L.; Gross, R.J.; Schmitt, R.G.

    1998-09-01

    An overview of cookoff modeling at Sandia National Laboratories is presented aimed at assessing the violence of reaction following cookoff of confined energetic materials. During cookoff, the response of energetic materials is known to involve coupled thermal/chemical/mechanical processes which induce thermal damage to the energetic material prior to the onset of ignition. These damaged states enhance shock sensitivity and lead to conditions favoring self-supported accelerated combustion. Thus, the level of violence depends on the competition between pressure buildup and stress release due to the loss of confinement. To model these complex processes, finite element-based analysis capabilities are being developed which can resolve coupled heat transfer with chemistry, quasi-static structural mechanics and dynamic response. Numerical simulations that assess the level of violence demonstrate the importance of determining material damage in pre- and post-ignition cookoff events.

  19. Resources | Critical Materials Institute

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

    Notice of intent to issue FOA (December 2013) Energy Department Announces 3 Million to Lower Cost of Geothermal Energy and Boost U.S. Supply of Critical Materials, February 14,...

  20. Mesoporous carbon materials

    DOE Patents [OSTI]

    Dai, Sheng (Knoxville, TN); Wang, Xiqing (Oak Ridge, TN)

    2012-02-14

    The invention is directed to a method for fabricating a mesoporous carbon material, the method comprising subjecting a precursor composition to a curing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer, (ii) a phenolic compound or material, (iii) a crosslinkable aldehyde component, and (iv) at least 0.5 M concentration of a strong acid having a pKa of or less than -2, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a mesoporous carbon material. The invention is also directed to a mesoporous carbon material having an improved thermal stability, preferably produced according to the above method.

  1. Mesoporous carbon materials

    DOE Patents [OSTI]

    Dai, Sheng; Wang, Xiqing

    2013-08-20

    The invention is directed to a method for fabricating a mesoporous carbon material, the method comprising subjecting a precursor composition to a curing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer, (ii) a phenolic compound or material, (iii) a crosslinkable aldehyde component, and (iv) at least 0.5 M concentration of a strong acid having a pKa of or less than -2, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a mesoporous carbon material. The invention is also directed to a mesoporous carbon material having an improved thermal stability, preferably produced according to the above method.

  2. Spectroscopy of semiconductor materials

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

    Ag 3 VO 4 as a New p-Type Transparent Conducting Material Using systematic design principles, the Center for Inverse Design is exploring a new class of ternary p-type transparent...

  3. Electrically conductive material

    DOE Patents [OSTI]

    Singh, J.P.; Bosak, A.L.; McPheeters, C.C.; Dees, D.W.

    1993-09-07

    An electrically conductive material is described for use in solid oxide fuel cells, electrochemical sensors for combustion exhaust, and various other applications possesses increased fracture toughness over available materials, while affording the same electrical conductivity. One embodiment of the sintered electrically conductive material consists essentially of cubic ZrO[sub 2] as a matrix and 6-19 wt. % monoclinic ZrO[sub 2] formed from particles having an average size equal to or greater than about 0.23 microns. Another embodiment of the electrically conductive material consists essentially at cubic ZrO[sub 2] as a matrix and 10-30 wt. % partially stabilized zirconia (PSZ) formed from particles having an average size of approximately 3 microns. 8 figures.

  4. Work with Biological Materials

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

    Work with Biological Materials Print Planning A complete Experiment Safety Sheet (ESS) is required before work can be done at the ALS. This ESS is either a part of the proposal...

  5. Small Building Material Loan

    Broader source: Energy.gov [DOE]

    Applicants may borrow up to $100,000 for projects that improve the livability of a home, improve energy efficiency, or expand space. The loan can be applied toward building materials, freight or...

  6. Heavy Vehicle Propulsion Materials

    SciTech Connect (OSTI)

    Ray Johnson

    2000-01-31

    The objectives are to Provide Key Enabling Materials Technologies to Increase Energy Efficiency and Reduce Exhaust Emissions. The following goals are listed: Goal 1: By 3rd quarter 2002, complete development of materials enabling the maintenance or improvement of fuel efficiency {ge} 45% of class 7-8 truck engines while meeting the EPA/Justice Department ''Consent Decree'' for emissions reduction. Goal 2: By 4th quarter 2004, complete development of enabling materials for light-duty (class 1-2) diesel truck engines with efficiency over 40%, over a wide range of loads and speeds, while meeting EPA Tier 2 emission regulations. Goal 3: By 4th quarter 2006, complete development of materials solutions to enable heavy-duty diesel engine efficiency of 50% while meeting the emission reduction goals identified in the EPA proposed rule for heavy-duty highway engines.''

  7. Work with Biological Materials

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

    ALS is risk group 1 or lower with few other complicating issues. ALS has created an umbrella authorization that most users can use for bio-safety level-1 materials. This...

  8. Work with Biological Materials

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

    the ALS is risk group 1 or lower with few other complicating issues. ALS has created an umbrella authorization that most users can use for bio-safety level-1 materials. This...

  9. Critical Materials Workshop

    Broader source: Energy.gov [DOE]

    AMO hosted a public workshop on Tuesday, April 3, 2012 in Arlington, VA to provide background information on critical materials assessment, the current research within DOE related to critical...

  10. Reversible hydrogen storage materials

    DOE Patents [OSTI]

    Ritter, James A. (Lexington, SC); Wang, Tao (Columbia, SC); Ebner, Armin D. (Lexington, SC); Holland, Charles E. (Cayce, SC)

    2012-04-10

    In accordance with the present disclosure, a process for synthesis of a complex hydride material for hydrogen storage is provided. The process includes mixing a borohydride with at least one additive agent and at least one catalyst and heating the mixture at a temperature of less than about 600.degree. C. and a pressure of H.sub.2 gas to form a complex hydride material. The complex hydride material comprises MAl.sub.xB.sub.yH.sub.z, wherein M is an alkali metal or group IIA metal, Al is the element aluminum, x is any number from 0 to 1, B is the element boron, y is a number from 0 to 13, and z is a number from 4 to 57 with the additive agent and catalyst still being present. The complex hydride material is capable of cyclic dehydrogenation and rehydrogenation and has a hydrogen capacity of at least about 4 weight percent.

  11. Accelerating Advanced Material Development

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

    this tool into a more permanent, flexible and scalable data service built on top of rich modern web interfaces and state-of-the-art NoSQL database technology." The Materials...

  12. Energy Materials Network News

    Broader source: Energy.gov [DOE]

    Below are news stories and blog posts related to the Energy Materials Network (EMN) from the Energy Department and the Office of Energy Efficiency and Renewable Energy. Please see the Consortia and...

  13. Management of Nuclear Materials

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2009-08-17

    To establish requirements for the lifecycle management of DOE owned and/or managed accountable nuclear materials. Admin Chg 1 dated 4-10-2014, supersedes DOE O 410.2.

  14. Nuclear Material Packaging Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2008-03-07

    The manual provides detailed packaging requirements for protecting workers from exposure to nuclear materials stored outside of an approved engineered contamination barrier. Does not cancel/supersede other directives. Certified 11-18-10.

  15. Next Generation Materials:

    Office of Environmental Management (EM)

    Next Generation Materials: 1 Technology Assessment 2 Contents 3 1. Introduction to the Technology/System ............................................................................................... 1 4 1.1 Overview ....................................................................................................................................... 1 5 1.2 Public and private roles and activities .......................................................................................... 3 6 2.

  16. Nano-composite materials

    DOE Patents [OSTI]

    Lee, Se-Hee; Tracy, C. Edwin; Pitts, J. Roland

    2010-05-25

    Nano-composite materials are disclosed. An exemplary method of producing a nano-composite material may comprise co-sputtering a transition metal and a refractory metal in a reactive atmosphere. The method may also comprise co-depositing a transition metal and a refractory metal composite structure on a substrate. The method may further comprise thermally annealing the deposited transition metal and refractory metal composite structure in a reactive atmosphere.

  17. Advanced Materials Laboratory

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

    SunShot Grand Challenge: Regional Test Centers Advanced Materials Laboratory Home/Tag:Advanced Materials Laboratory - Structures of the zwitterionic coatings synthesized for this study. Permalink Gallery Investigations on Anti-biofouling Zwitterionic Coatings for MHK Is Now in Press Analysis, Capabilities, Energy, News, News & Events, Renewable Energy, Research & Capabilities, Water Power Investigations on Anti-biofouling Zwitterionic Coatings for MHK Is Now in Press Sandia's Marine

  18. Biomimetic hydrogel materials

    DOE Patents [OSTI]

    Bertozzi, Carolyn (Albany, CA); Mukkamala, Ravindranath (Houston, TX); Chen, Qing (Albany, CA); Hu, Hopin (Albuquerque, NM); Baude, Dominique (Creteil, FR)

    2000-01-01

    Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the group consisting of an acrylamide, methacrylamide, acrylate, methacrylate, vinyl and a derivative thereof present in concentration from about 1 to about 99 wt %. and methods for their preparation. The method of use of the new hydrogels for fabrication of soft contact lenses and biomedical implants.

  19. Biomimetic Hydrogel Materials

    DOE Patents [OSTI]

    Bertozzi, Carolyn (Albany, CA), Mukkamala, Ravindranath (Houston, TX), Chen, Oing (Albany, CA), Hu, Hopin (Albuquerque, NM), Baude, Dominique (Creteil, FR)

    2003-04-22

    Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the group consisting of an acrylamide, methacrylamide, acrylate, methacrylate, vinyl and a derivative thereof present in concentration from about 1 to about 99 wt %. and methods for their preparation. The method of use of the new hydrogels for fabrication of soft contact lenses and biomedical implants.

  20. CRITICAL MATERIALS MUSEUM DISPLAY

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

    1 04-01-2015 Introduction The Critical Materials display was initiated by the Outreach and Education Coordinator for the Critical Materials Institute (CMI) and the Director of the Colorado School of Mines (CSM) Geology Museum as an opportunity to leverage the relationship between CSM's very successful museum outreach and CMI's desire to reach audiences of all ages across the nation. The display will be designed to provide a visual outreach opportunity with visitors and guests to the Colorado

  1. Material Point Methods

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

    Material Point Methods and Multiphysics for Fracture and Multiphase Problems Joseph Teran, UCLA and Alice Koniges, LBL Contact: jteran@math.ucla.edu Material point methods (MPM) provide an intriguing new path for the design of algorithms that are poised to scale to billions of cores [4]. These methods are particularly important for simulating various phases in the presence of extreme deformation and topological change. This brings about the possibility of new simulations enabled at the exascale

  2. Materials processing with light

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

    Materials processing with light, plasmas and other sources of energy At the ARC various processing technologies are used to create materials, struc- tures, and devices that play an increasingly important role in high value-added manufacturing of computer and communications equipment, physical and chemical sensors, biomedical instruments and treatments, semiconductors, thin films, photovoltaics, electronic components and optical components. For example, making coatings, including paint, chrome,

  3. Hunan Reshine New Material Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    company which engages in R&D, manufacturing and sales of Cathode materials for Lithium rechargeable batteries. Coordinates: 27.41403, 111.53714 Show Map Loading map......

  4. BTR New Energy Materials Inc | Open Energy Information

    Open Energy Info (EERE)

    and sales of anode, cathode, electrolyte and additives and other materials for Lithium rechargeable batteries. Coordinates: 22.546789, 114.112556 Show Map Loading...

  5. Mines Welcomes Middle School Students | Critical Materials Institute

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

    of Science and Technology. The students spent the day at Mines to learn about Earth, energy, the environment, critical materials and mining. The students enjoyed a chemistry show ...

  6. MCU MATERIALS COMPATIBILITY WITH CSSX SOLVENT

    SciTech Connect (OSTI)

    Fondeur, F

    2006-01-13

    The Modular Caustic-Side Solvent Extraction (CSSX) Unit (MCU) plans to use several new materials of construction not previously used with CSSX solvent. SRNL researchers tested seven materials proposed for service in seal and gasket applications. None of the materials leached detectable amounts of components into the CSSX solvent during 96 hour tests. All are judged acceptable for use based on their effect on the solvent. However, some of the materials adsorbed solvent or changed dimensions during contact with solvent. Consultation with component and material vendors with regard to performance impact and in-use testing of the materials is recommended. Polyetheretherketone (PEEK), a material selected for use in contactor bearing seals, did not gain weight or change dimensions on contact with CSSX solvent. Analysis of the solvent contacted with this material showed no impurities and the standard dispersion test gave acceptable phase separation results. The material contains a leachable hydrocarbon substance, detectable on exposed surfaces, that did not adversely contaminate the solvent within the limits of the testing. We recommend contacting the vendor to determine the source and purpose of this component, or, alternatively, pursue the infrared analysis of the PEEK in an effort to better define potential impacts.

  7. Materials Characterization Capabilities at the High Temperature Materials

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

    Laboratory: Focus Lightweighting Materials | Department of Energy Lightweighting Materials Materials Characterization Capabilities at the High Temperature Materials Laboratory: Focus Lightweighting Materials 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon lm039_watkins_2011_o.pdf More Documents & Publications Materials Characterization Capabilities at the High Temperature Materials Laboratory and HTML User

  8. Thermal Damage Characterization of Energetic Materials

    SciTech Connect (OSTI)

    Hsu, P C; DeHaven, M R; Springer, H K; Maienschein, J L

    2009-08-14

    We conducted thermal damage experiments at 180?C on PBXN-9 and characterized its material properties. Volume expansion at high temperatures was very significant which led to a reduction in material density. 2.6% of weight loss was observed, which was higher than other HMX-based formulations. Porosity of PBXN-9 increased to 16% after thermal exposure. Small-scale safety tests (impact, friction, and spark) showed no significant sensitization when the damaged samples were tested at room temperature. Gas permeation measurements showed that gas permeability in damaged materials was several orders of magnitude higher than that in pristine materials. In-situ measurements of gas permeability and density were proved to be possible at higher temperatures.

  9. Stable formation of ultrahigh power-density 248 nm channels in Xe cluster targets

    SciTech Connect (OSTI)

    Borisov, Alex B.; Racz, Ervin; Khan, Shahab F.; Poopalasingam, Sankar; McCorkindale, John C.; Boguta, John; Longworth, James W.; Rhodes, Charles K.

    2012-07-11

    The optimization of relativistic and ponderomotive self-channeling of ultra-powerful 248 nm laser pulses launched in underdense plasmas with an appropriate longitudinal gradient in the electron density profile located at the initial stage of the self-channeling leads to (1) stable channel formation and (2) highly efficient power compression producing power densities in the 10{sup 19}-10{sup 20} W/cm{sup 3} range. The comparison of theoretical studies with experimental results involving the correlation of (a) Thomson images of the electron density with (b) x-ray images of the channel morphology demonstrates that more than 90% of the incident 248 nm power can be trapped in stable channels and that this stable propagation can be extended to power levels significantly exceeding the critical power of the self-channeling process.

  10. A highly stable DC power supply for precision magnetic field measurements and other purposes

    SciTech Connect (OSTI)

    Ino, Takashi

    2012-04-15

    A homogeneous magnetic field is essential for the {sup 3}He neutron spin filter used to polarize neutron beams and analyze neutron spins in neutron scattering. The required spatial uniformity of the magnetic field is on the order of 10{sup -4}/cm or less. To measure such uniformity, one needs a DC current source with a current stability much better than 10{sup -4}. However, laboratory DC power supplies, which are commonly used in many {sup 3}He neutron spin filters, do not have such stabilities. To attain a highly stable current with a common laboratory DC power supply for every {sup 3}He neutron spin filter, a simple feedback circuit has been developed to keep the output current stable up to 10{sup -6}. Such a highly stable current or voltage from a common laboratory DC power supply can also be used for various other research applications.

  11. Generation of low work function, stable compound thin films by laser ablation

    DOE Patents [OSTI]

    Dinh, Long N. (Concord, CA); McLean, II, William (Oakland, CA); Balooch, Mehdi (Berkeley, CA); Fehring, Jr., Edward J. (Dublin, CA); Schildbach, Marcus A. (Livermore, CA)

    2001-01-01

    Generation of low work function, stable compound thin films by laser ablation. Compound thin films with low work function can be synthesized by simultaneously laser ablating silicon, for example, and thermal evaporating an alkali metal into an oxygen environment. For example, the compound thin film may be composed of Si/Cs/O. The work functions of the thin films can be varied by changing the silicon/alkali metal/oxygen ratio. Low work functions of the compound thin films deposited on silicon substrates were confirmed by ultraviolet photoelectron spectroscopy (UPS). The compound thin films are stable up to 500.degree. C. as measured by x-ray photoelectron spectroscopy (XPS). Tests have established that for certain chemical compositions and annealing temperatures of the compound thin films, negative electron affinity (NEA) was detected. The low work function, stable compound thin films can be utilized in solar cells, field emission flat panel displays, electron guns, and cold cathode electron guns.

  12. Low-Potential Stable NADH Detection at Carbon-Nanotube-Modified Glassy Carbon Electrodes

    SciTech Connect (OSTI)

    Musameh, Mustafa; Wang, Joseph; Merkoci, Arben; Lin, Yuehe )

    2002-11-22

    Carbon-nanotube (CNT) modified glassy-carbon electrodes exhibiting strong and stable electrocatalytic response toward NADH are described. A substantial (490 mV) decrease in the overvoltage of the NADH oxidation reaction (compared to ordinary carbon electrodes) is observed using single-wall and multi-wall carbon-nanotube coatings, with oxidation starting at ca.?0.05V (vs. Ag/AgCl; pH 7.4). Furthermore, the NADH amperometric response of the coated electrodes is extremely stable, with 96 and 90% of the initial activity remaining after 60min stirring of 2x10-4M and 5x10-3M NADH solutions, respectively (compared to 20 and 14% at the bare surface). The CNT-coated electrodes thus allow highly-sensitive, low-potential, stable amperometric sensing. Such ability of carbon-nanotubes to promote the NADH electron-transfer reaction suggests great promise for dehydrogenase-based amperometric biosensors.

  13. Introducing thermally stable inter-tube defects to assist off-axial phonon transport in carbon nanotube films

    SciTech Connect (OSTI)

    Wang, Jing [Department of Materials Science and Engineering, Texas A and M University, College Station, Texas 77843 (United States); Chen, Di; Wallace, Joseph; Gigax, Jonathan; Wang, Xuemei [Department of Nuclear Engineering, Texas A and M University, College Station, Texas, 77843 (United States); Shao, Lin, E-mail: lshao@tamu.edu [Department of Materials Science and Engineering, Texas A and M University, College Station, Texas 77843 (United States); Department of Nuclear Engineering, Texas A and M University, College Station, Texas, 77843 (United States)

    2014-05-12

    Through integrated molecular dynamics (MD) simulations and experimental studies, we demonstrated the feasibility of an ion-irradiation-and-annealing based phonon engineering technique to enhance thermal conductivity of carbon nanotube (CNT) films. Upon ion irradiation of CNT films, both inter-tube defects and intra-tube defects are introduced. Our MD simulations show that inter-tube defects created between neighboring tubes are much more stable than intra-tube defects created on tube graphitic planes. Upon thermal annealing, intra-tube defects are preferentially removed but inter-tube defects stay. Consequently, axial phonon transport increases due to reduced phonon scattering and off-axial phonon transport is sustained due to the high stability of inter-tube defects, leading to a conductivity enhancement upon annealing. The modeling predictions agree with experimental observations that thermal conductivities of CNT films were enhanced after 2?MeV hydrogen ion irradiations and conductivities were further enhanced upon post irradiation annealing.

  14. BUILDING MATERIALS RECLAMATION PROGRAM

    SciTech Connect (OSTI)

    David C. Weggel; Shen-En Chen; Helene Hilger; Fabien Besnard; Tara Cavalline; Brett Tempest; Adam Alvey; Madeleine Grimmer; Rebecca Turner

    2010-08-31

    This report describes work conducted on the Building Materials Reclamation Program for the period of September 2008 to August 2010. The goals of the project included selecting materials from the local construction and demolition (C&D) waste stream and developing economically viable reprocessing, reuse or recycling schemes to divert them from landfill storage. Educational resources as well as conceptual designs and engineering feasibility demonstrations were provided for various aspects of the work. The project was divided into two distinct phases: Research and Engineering Feasibility and Dissemination. In the Research Phase, a literature review was initiated and data collection commenced, an advisory panel was organized, and research was conducted to evaluate high volume C&D materials for nontraditional use; five materials were selected for more detailed investigations. In the Engineering Feasibility and Dissemination Phase, a conceptual study for a regional (Mecklenburg and surrounding counties) collection and sorting facility was performed, an engineering feasibility project to demonstrate the viability of recycling or reuse schemes was created, the literature review was extended and completed, and pedagogical materials were developed. Over the two-year duration of the project, all of the tasks and subtasks outlined in the original project proposal have been completed. The Final Progress Report, which briefly describes actual project accomplishments versus the tasks/subtasks of the original project proposal, is included in Appendix A of this report. This report describes the scientific/technical aspects (hypotheses, research/testing, and findings) of six subprojects that investigated five common C&D materials. Table 1 summarizes the six subprojects, including the C&D material studied and the graduate student and the faculty advisor on each subproject.

  15. Synthesis and Engineering Materials Properties of Fluid Phase Chemical Hydrogen Storage Materials for Automotive Applications

    SciTech Connect (OSTI)

    Choi, Young Joon; Westman, Matthew P.; Karkamkar, Abhijeet J.; Chun, Jaehun; Ronnebro, Ewa

    2015-09-01

    Among candidates for chemical hydrogen storage in PEM fuel cell automotive applications, ammonia borane (AB, NH3BH3) is considered to be one of the most promising materials due to its high practical hydrogen content of 14-16 wt%. This material is selected as a surrogate chemical for a hydrogen storage system. For easier transition to the existing infrastructure, a fluid phase hydrogen storage material is very attractive and thus, we investigated the engineering materials properties of AB in liquid carriers for a chemical hydrogen storage slurry system. Slurries composed of AB and high temperature liquids were prepared by mechanical milling and sonication in order to obtain stable and fluidic properties. Volumetric gas burette system was adopted to observe the kinetics of the H2 release reactions of the AB slurry and neat AB. Viscometry and microscopy were employed to further characterize slurries engineering properties. Using a tip-sonication method we have produced AB/silicone fluid slurries at solid loadings up to 40wt% (6.5wt% H2) with viscosities less than 500cP at 25°C.

  16. Microwave impregnation of porous materials with thermal energy storage materials

    DOE Patents [OSTI]

    Benson, David K. (Golden, CO); Burrows, Richard W. (Conifer, CO)

    1993-01-01

    A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

  17. Microwave impregnation of porous materials with thermal energy storage materials

    DOE Patents [OSTI]

    Benson, D.K.; Burrows, R.W.

    1993-04-13

    A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

  18. Microwave impregnation of porous materials with thermal energy storage materials

    SciTech Connect (OSTI)

    Benson, D.K.; Burrows, R.W.

    1992-12-31

    A method for impregnating a porous, non-metallic construction material with a solid phase-change material is described. The phase-change material in finely divided form is spread onto the surface of the porous material, after which the porous material is exposed to microwave energy for a time sufficient to melt the phase-change material. The melted material is spontaneously absorbed into the pores of the porous material. A sealing chemical may also be included with the phase-change material (or applied subsequent to the phase-change material) to seal the surface of the porous material. Fire retardant chemicals may also be included with the phase-change materials. The treated construction materials are better able to absorb thermal energy and exhibit increased heat storage capacity.

  19. Foam composition for treating asbestos-containing materials and method of using same

    DOE Patents [OSTI]

    Block, J.; Krupkin, N.V.; Kuespert, D.R.; Nishioka, G.M.; Lau, J.W.K.; Palmer, N.I.

    1998-04-28

    A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed. The composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fluoride ions, and a stable foam forming amount of a foaming agent system having both cationic and non-ionic functionality. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition in the form of a foam also disclosed.

  20. Foam composition for treating asbestos-containing materials and method of using same

    DOE Patents [OSTI]

    Block, Jacob (Rockville, MD); Krupkin, Natalia Vera (Timonium, MD); Kuespert, Daniel Reid (Columbia, MD); Nishioka, Gary Masaru (Pataskala, OH); Lau, John Wing-Keung (North Potomac, MD); Palmer, Nigel Innes (Boca Raton, FL)

    1998-04-28

    A composition for transforming a chrysotile asbestos-containing material into a non-asbestos material is disclosed, wherein the composition comprises water, at least about 30% by weight of an acid component, at least about 0.1% by weight of a source of fluoride ions, and a stable foam forming amount of a foaming agent system having both cationic and non-ionic functionality. A method of transforming the asbestos-containing material into a non-asbestos material using the present composition in the form of a foam also disclosed.