National Library of Energy BETA

Sample records for magnetic materials center

  1. Kazuhiro Hono, Magnetic Materials Center Managing Director, NIMS, Research

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

    Trends on Rare Earth Materials in Japan | Department of Energy Kazuhiro Hono, Magnetic Materials Center Managing Director, NIMS, Research Trends on Rare Earth Materials in Japan Kazuhiro Hono, Magnetic Materials Center Managing Director, NIMS, Research Trends on Rare Earth Materials in Japan PDF icon Session_A7_Hono_NIMS.pdf More Documents & Publications Spomenka Kobe, Jozef Stefan Institut, Rare Earth Magnets in Europe Tom Lograsso, Ames Laboratory (Iowa State University), Future

  2. Center Organization | Center for Energy Efficient Materials

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

    Center Organization People People Scientific Advisory Board Center Organization

  3. Center for Nanoscale Materials

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

    National Laboratory is a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC. Academic, industrial, and international researchers from across the globe can access the center through its user program. Brief proposals are peer- reviewed for both non-proprietary (at no cost to the user) and proprietary (with cost-recovery rates) research. The center's goal is to support and explore ways to create functional hybrid nanomaterials and to tailor nanoscale interactions for grand

  4. Energy Frontier Research Center Center for Materials Science...

    Office of Scientific and Technical Information (OSTI)

    for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Scientific ...

  5. Magnetic Materials | Advanced Photon Source

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

    Materials Internal Magnetic Materials The Magnetic Material Group (MMG) is part of the X-ray Science Division (XSD) at the Advanced Photon Source (APS). Our research focuses on the...

  6. Energy Frontier Research Center Center for Materials Science of Nuclear

    Office of Scientific and Technical Information (OSTI)

    Fuels (Technical Report) | SciTech Connect Frontier Research Center Center for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Scientific Successes * The first phonon density of states (PDOS) measurements for UO2 to include anharmonicity were obtained using time-of-flight inelastic neutron scattering at the Spallation Neutron Source (SNS), and an innovative, experimental-based

  7. Energy Frontier Research Center Center for Materials Science of Nuclear

    Office of Scientific and Technical Information (OSTI)

    Fuels (Technical Report) | SciTech Connect Technical Report: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize

  8. Energy Frontier Research Center Center for Materials Science of Nuclear

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

    Fuels (Technical Report) | SciTech Connect Technical Report: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Citation Details In-Document Search Title: Energy Frontier Research Center Center for Materials Science of Nuclear Fuels Scientific Successes * The first phonon density of states (PDOS) measurements for UO2 to include anharmonicity were obtained using time-of-flight inelastic neutron scattering at the Spallation Neutron Source (SNS), and an innovative,

  9. Center for Lightweighting Automotive Materials and Processing...

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

    Automotive Materials and Processing 2008 Annual Merit Review Results Summary - 16. Technology Integration and Education GATE Center of Excellence in Lightweight Materials...

  10. Center for Nanophase Materials Sciences - Newsletter January...

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

    Center for Nanophase Materials Sciences and Panos Datskos of ORNL Measurement Science and Systems Engineering Division The technology, based on nonlinear nanomechanical resonators,...

  11. Center for Lightweighting Automotive Materials and Processing...

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

    GATE Center of Excellence in Lightweight Materials and Manufacturing Technologies Vehicle Technologies Office Merit Review 2014: Improving Fatigue Performance of AHSS Welds

  12. Center for Nanoscale Materials | Argonne National Laboratory

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

    CNM on Facebook Career Opportunities CNM Intranet CNM on Facebook Argonne National Laboratory Center for Nanoscale Materials About Research Capabilities For Users People...

  13. Center for Nanophase Materials Sciences (CNMS) - News

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

    Click here to view Seminar archives Upcoming Events User Meeting - Center for Nanophase Materials Sciences, August 10-12, 2016, Oak Ridge, TN view Past Events

  14. Magnetic Materials Group

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

    4-ID-C: Soft X-ray Magnetic Spectroscopy This beamline operates in the soft x-ray energy spectrum (500 - 2700 eV) using an electromagnetic helical undulator to provide circularly...

  15. Center for Energy Efficient Materials

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

    California, Santa Barbara NREL Purdue University Los Alamos News May 15, 2014 Multi-junction Solar Cells to Push CPV Efficiencies Beyond 50% Oct 30, 2013 Materials Professor...

  16. Materials Science and Engineering Center

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

    and Engineering Center - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced

  17. Center for Nanophase Materials Sciences

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

    Electronic and Ionic Functionality on the Nanoscale * Developing instrumentation and techniques to image and understand the functionality of nanoscale materials and interacting assemblies * Research on optoelectronic, ferroelectric, ionic and electronic transport, and catalytic phenomena at the nanoscale * Understand energy transfer at nanoscale interfaces Functional Polymer and Hybrid Architectures * Advancing our fundamental understanding of the links between polymer structure, property and

  18. Magnetic and Superconducting Materials at High Pressures

    SciTech Connect (OSTI)

    Struzhkin, Viktor V.

    2015-03-24

    The work concentrates on few important tasks in enabling techniques for search of superconducting compressed hydrogen compounds and pure hydrogen, investigation of mechanisms of high-Tc superconductivity, and exploring new superconducting materials. Along that route we performed several challenging tasks, including discovery of new forms of polyhydrides of alkali metal Na at very high pressures. These experiments help us to establish the experimental environment that will provide important information on the high-pressure properties of hydrogen-rich compounds. Our recent progress in RIXS measurements opens a whole field of strongly correlated 3d materials. We have developed a systematic approach to measure major electronic parameters, like Hubbard energy U, and charge transfer energy Δ, as function of pressure. This technique will enable also RIXS studies of magnetic excitations in iridates and other 5d materials at the L edge, which attract a lot of interest recently. We have developed new magnetic sensing technique based on optically detected magnetic resonance from NV centers in diamond. The technique can be applied to study superconductivity in high-TC materials, to search for magnetic transitions in strongly correlated and itinerant magnetic materials under pressure. Summary of Project Activities; development of high-pressure experimentation platform for exploration of new potential superconductors, metal polyhydrides (including newly discovered alkali metal polyhydrides), and already known superconductors at the limit of static high-pressure techniques; investigation of special classes of superconducting compounds (high-Tc superconductors, new superconducting materials), that may provide new fundamental knowledge and may prove important for application as high-temperature/high-critical parameter superconductors; investigation of the pressure dependence of superconductivity and magnetic/phase transformations in 3d transition metal compounds, including transitions from magnetic to nonmagnetic phases in a broad pressure-temperature range; using X-ray methods including the newly developed RIXS high-pressure technique to explore pressure-tuned electronic excitations in strongly correlated 3d-materials; and advancing transport and magnetic techniques for measurements on small samples at very high pressures in a wide temperature range, with the application of focused ion beam technology and photolithography tailored to the design of microcircuits down to a nanoscale size, thus expanding the horizon in the search for novel physical phenomena at ultrahigh pressures. Apply new optical magnetic sensing techniques with NV- centers in diamond to detect superconductivity and magnetic transitions with unprecedented spatial resolution.

  19. Design Principles for Materials with Magnetic Functionality ...

    Office of Scientific and Technical Information (OSTI)

    Design Principles for Materials with Magnetic Functionality Citation Details In-Document Search Title: Design Principles for Materials with Magnetic Functionality This report ...

  20. Design Principles for Materials with Magnetic Functionality ...

    Office of Scientific and Technical Information (OSTI)

    Design Principles for Materials with Magnetic Functionality Citation Details In-Document Search Title: Design Principles for Materials with Magnetic Functionality You are ...

  1. Center for Nanophase Materials Sciences - Newsletter January...

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

    CNMS Updates The CNMS has a new director Sean Smith from the University of Queensland in Australia has accepted the position of director for the Center for Nanophase Materials...

  2. Center for Nanophase Materials Sciences Strategic Plan

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

    Center for Nanophase Materials Sciences Strategic Plan 2015-2019 October 2014 iii CONTENTS Page List of Figures ................................................................................................................................ iv Executive Summary ........................................................................................................................ v 1. The CNMS as Research and User Facility

  3. Facilities | Center for Energy Efficient Materials

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

    Facilities The Center for Energy Efficient Materials occupies approximately 3,000 square feet of assignable space in Phelps Hall. This space houses the Administrative offices of the Center, including offices for the Director, the Executive Director, the Financial Analyst, visiting scientists, and a number of post-docs, graduate students and undergraduate students. Two small seminar rooms are also included. The Institute for Energy Efficiency is co-located on the same floor, providing close

  4. Research | Center for Energy Efficient Materials

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

    Research CEEM is one of 46 Energy Frontier Research Centers funded by the Department of Energy to address the energy challenge through technological advancements. The Center was launched in August 2009 and focuses on fundamental research in the three key areas of photovoltaics, thermoelectrics, and solid-state lighting. These technologies are strongly inter-related, not only through the materials they employ and physical principles upon which they operate, but also in the synergies resulting

  5. Center for Defect Physics in Structural Materials - CDP

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

    Center for Defect Physics in Structural Materials - CDP LLNL Co-PI: Randy Hood [e-mail] [bio] Goals of LLNL Research Atomic and magnetic interactions treated using ab initio density functional theory (DFT). Quantum Monte Carlo (QMC) calculations of defect structures and energetics to validate and improve DFT treatment. QMC calculations of vacancy, divacancy, and self-interstitial defects and helium-vacancy complexes in aluminum are underway. QMC Benchmark Accuracy Total energies calculated using

  6. Edison Material Technology Center EMTEC | Open Energy Information

    Open Energy Info (EERE)

    Material Technology Center EMTEC Jump to: navigation, search Name: Edison Material Technology Center (EMTEC) Place: Dayton, Ohio Zip: 45420 Product: String representation "A...

  7. Herty Advanced Materials Development Center | Department of Energy

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

    Herty Advanced Materials Development Center Herty Advanced Materials Development Center Session 1-B: Advancing Alternative Fuels for the Military and Aviation Sector Breakout ...

  8. International Center for Materials Research ICMR | Open Energy...

    Open Energy Info (EERE)

    Name: International Center for Materials Research (ICMR) Place: Kawasaki-shi, Kanagawa, Japan Zip: 210-0855 Product: International Center for Materials Reseach is a Japanese...

  9. Arc Casting Intermetallic Alloy (Materials Preparation Center)

    SciTech Connect (OSTI)

    2010-01-01

    Arc casting of intermetallic (La-Ni-Sn) AB5 alloy used for metal hydride hydrogen storage. Upon solidification the Sn is partially rejected and increases in concentration in the remaining liquid. Upon completing solidification there is a great deal of internal stress in the ingot. As the ingot cools further the stress is relieved. This material was cast at the Ames Laboratorys Materials Preparation Center http://www.mpc.ameslab.gov

  10. Magnetic Filtration Process, Magnetic Filtering Material, and Method of

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

    Forming Magnetic Filtering Material - Energy Innovation Portal Industrial Technologies Industrial Technologies Find More Like This Return to Search Magnetic Filtration Process, Magnetic Filtering Material, and Method of Forming Magnetic Filtering Material Oak Ridge National Laboratory Contact ORNL About This Technology Technology Marketing SummaryORNL researchers developed a new method for filtering materials and managing wastewater. This invention offers an integrated, intensified process

  11. A Look Inside Argonne's Center for Nanoscale Materials | Argonne National

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

    Laboratory A Look Inside Argonne's Center for Nanoscale Materials Share Topic Programs Materials science Nanoscience

  12. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

    DOE Patents [OSTI]

    Barclay, J.A.; Stewart, W.F.; Henke, M.D.; Kalash, K.E.

    1986-04-03

    A magnetic refrigerator operating in the 12 to 77 K range utilizes a belt which carries ferromagnetic or paramagnetic material and which is disposed in a loop which passes through the center of a solenoidal magnet to achieve cooling. The magnetic material carried by the belt, which can be blocks in frames of a linked belt, can be a mixture of substances with different Curie temperatures arranged such that the Curie temperatures progressively increase from one edge of the belt to the other. This magnetic refrigerator can be used to cool and liquefy hydrogen or other fluids.

  13. Magnetic refrigeration apparatus with belt of ferro or paramagnetic material

    DOE Patents [OSTI]

    Barclay, John A.; Stewart, Walter F.; Henke, Michael D.; Kalash, Kenneth E.

    1987-01-01

    A magnetic refrigerator operating in the 12 to 77K range utilizes a belt which carries ferromagnetic or paramagnetic material and which is disposed in a loop which passes through the center of a solenoidal magnet to achieve cooling. The magnetic material carried by the belt, which can be blocks in frames of a linked belt, can be a mixture of substances with different Curie temperatures arranged such that the Curie temperatures progressively increase from one edge of the belt to the other. This magnetic refrigerator can be used to cool and liquefy hydrogen or other fluids.

  14. Center for Nanophase Materials Sciences - Conference 2015

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

    Meeting 2015: Planning CNMS Science for Its 2nd Decade with a UNIQUE ROUNDTABLE FORMAT Announcement REGISTRATION-Closed Call for Abstracts ABSTRACT SUBMISSION-Closed Venue & Access Important Dates Travel & Lodging Agenda Program Committee Contact Us CNMS Home The Center for Nanophase Materials Sciences (CNMS) at Oak Ridge National Laboratory and its User Executive Committee are pleased to announce the CNMS User Meeting on September 1-2, 2015 with the theme of "Planning CNMS Science

  15. Center for Nanoscale Materials | Argonne National Laboratory

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

    A Lithium-Air Battery Based on Lithium Superoxide More Borophene: Atomically Thin Metallic Boron More Ratiometric Sensing of Toxins using Quantum Dots More One Direction: nanocircuitry with semiconducting graphene nanoribbons More Keys to Access: Argonne-INCREASE partnership opens doors to collaboration More Video Highlight A Look Inside Argonne's Center for Nanoscale Materials BROCHURES & NEWSLETTERS CNM Overview Brochure CNM Fact Sheet Key Research Areas Nanofabrication & Devices

  16. Center for Nanophase Materials Sciences (CNMS) - News

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

    CNMS News Enhanced Electric Conductivity at Ferroelectric Vortex Cores in BiFeO3 Nina Balke,1 Benjamin Winchester,2 Wei Ren,3 Ying Hao Chu,4,5 Anna N. Morozovska,6 Eugene A. Eliseev,7 Mark Huijben,8 Rama K. Vasudevan,9 Petro Maksymovych,1 Jason Britson,2 Stephen Jesse,1 Igor Kornev,10 Ramamoorthy Ramesh,5 Laurent Bellaiche,3 Long Qing Chen,2 and Sergei V. Kalinin1 1 The Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 2 Department of Materials

  17. Electronic & Magnetic Materials & Devices Capabilities | Argonne...

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

    Electronic & Magnetic Materials & Devices Capabilities Synthesis Colloidal chemistry and self-assembly techniques Complex oxide film synthesis via molecular beam epitaxy (DCA R450...

  18. LANSCE | Lujan Center | Thrust Area | Local Structure, Magnetism, and

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

    Nanomaterials Thrust Area Local Structure, Magnetism, and Nanomaterials The Lujan Neutron Scattering Center encompasses a set of powder diffractometers, instrument scientist specialists, and sample environments (pressure, temperature, and magnetic field) equipped to address challenges in basic and applied science in local structure, magnetism, and nanomaterials. Three powder diffractometers focus on the diffraction needs for nuclear and magnetic structure determination in the fields of

  19. Center for Next Generation of Materials by Design: Incorporating

    Office of Science (SC) Website

    Metastability (CNGMD) | U.S. DOE Office of Science (SC) Center for Next Generation of Materials by Design: Incorporating Metastability (CNGMD) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for Next Generation of Materials by Design: Incorporating Metastability (CNGMD) Print Text Size: A A A FeedbackShare Page CNGMD Header Director William Tumas Lead

  20. Staff > Center Alumni > The Energy Materials Center at Cornell

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

    Matthew Rigsby Researcher - Oakridge National Lab rigsbyma@ornl.gov List Image Spencer Robbins Materials Scientist - TeraPore Technologies, Inc. swr43@cornell.edu List Image...

  1. GATE Center of Excellence in Lightweight Materials and Manufacturing

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

    Technologies | Department of Energy Lightweight Materials and Manufacturing Technologies GATE Center of Excellence in Lightweight Materials and Manufacturing Technologies 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ti026_vaidya_2012_p.pdf More Documents & Publications GATE Center of Excellence at UAB in Lightweight Materials for Automotive Applications GATE Center of Excellence in Lightweight Materials

  2. 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

  3. News > > The Energy Materials Center at Cornell

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

    News + Events In This Section Why Partnerships? Current Partners Project Updates News & Events Resources Join News EMC2 News Center news updates 36 entries Archived News Stories...

  4. Center for the Computational Design of Functional Layered Materials (CCDM)

    Office of Science (SC) Website

    | U.S. DOE Office of Science (SC) the Computational Design of Functional Layered Materials (CCDM) Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Center for the Computational Design of Functional Layered Materials (CCDM) Print Text Size: A A A FeedbackShare Page CCDM Header Director John Perdew Lead Institution Temple University Year Established 2014 Mission To

  5. SciDAC Outreach Center Participates in "Materials for Energy...

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

    Center Participates in "Materials for Energy Applications" Workshop February 1, 2012 David Skinner From Jan. 30 to Feb. 1 Berkeley Lab hosted an invitation-only workshop on...

  6. GATE Center of Excellence in Lightweight Materials and Manufacturing...

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

    Technologies Vehicle Technologies Office Merit Review 2014: GATE Center of Excellence at UAB for Lightweight Materials and Manufacturing for Automotive, Truck and Mass Transit...

  7. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    AL 35487 (USA) 2-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (USA) 3-Department of Chemistry, University of Kentucky,...

  8. Center for Nanophase Materials Sciences - Summer Newsletter 2010

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

    1 Department of Chemistry, Vanderbilt University, Station B 351824, Nashville, TN 37235, USA 2 Center for Nanophase Materials Sciences at Oak Ridge National Laboratory, 1 Bethel...

  9. News > > The Energy Materials Center at Cornell

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

    News + Events In This Section EMC2 News Archived News Stories News EMC2 News Center news updates 36 entries Archived News Stories Previous news stories from emc2 81 entries Home ...

  10. Probing nanoscale behavior of magnetic materials with soft x...

    Office of Scientific and Technical Information (OSTI)

    Probing nanoscale behavior of magnetic materials with soft x-ray spectromicroscopy Citation Details In-Document Search Title: Probing nanoscale behavior of magnetic materials with...

  11. Center for Lightweighting Automotive Materials and Processing | Department

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

    of Energy 11 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ti010_mallick_2011_o.pdf More Documents & Publications Center for Lightweighting Automotive Materials and Processing GATE Center of Excellence in Lightweight Materials and Manufacturing Technologies Vehicle Technologies Office Merit Review 2014: Improving Fatigue Performance of AHSS Welds

  12. Instructional Materials | Photosynthetic Antenna Research Center

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

    Instructional Materials Instructional Materials Solar Energy Learn about the quality of electromagnetic radiation produced by the sun and investigate on how this energy is captured and transferred into usable forms of energy. Explore this process in natural systems, like photosynthetic organisms, as well as manmade systems for producing electricity from sunlight. Download Solar Materials Here | Solar Energy Kit Overview Learning Modules: Kit #1: Spectroradiometry and Chlorophyll Spectroscopy Kit

  13. Center for Nanophase Materials Sciences (CNMS) - Nanofabrication...

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

    clean room space for carrying out material modification using advanced lithographic, etching, thin-film deposition, and characterization tools. Process Design Assistance with...

  14. Center for Nanophase Materials Sciences - Newsletter

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

    can provide insights for the development of new materials for solar cells, solid-state lighting and superconductor power transmission. Computer codes will be made...

  15. Current Partners > Partnerships > The Energy Materials Center...

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

    below. More information about each of these, and other partners coming soon. General Motors Honeoye Falls, NY Primet Precision Materials Ithaca, NY Ford Motor Corporation...

  16. Magnetic spectroscopy and microscopy of functional materials

    SciTech Connect (OSTI)

    Jenkins, C.A.

    2011-01-28

    Heusler intermetallics Mn{sub 2}Y Ga and X{sub 2}MnGa (X; Y =Fe, Co, Ni) undergo tetragonal magnetostructural transitions that can result in half metallicity, magnetic shape memory, or the magnetocaloric effect. Understanding the magnetism and magnetic behavior in functional materials is often the most direct route to being able to optimize current materials for todays applications and to design novel ones for tomorrow. Synchrotron soft x-ray magnetic spectromicroscopy techniques are well suited to explore the the competing effects from the magnetization and the lattice parameters in these materials as they provide detailed element-, valence-, and site-specifc information on the coupling of crystallographic ordering and electronic structure as well as external parameters like temperature and pressure on the bonding and exchange. Fundamental work preparing the model systems of spintronic, multiferroic, and energy-related compositions is presented for context. The methodology of synchrotron spectroscopy is presented and applied to not only magnetic characterization but also of developing a systematic screening method for future examples of materials exhibiting any of the above effects. The chapter progression is as follows: an introduction to the concepts and materials under consideration (Chapter 1); an overview of sample preparation techniques and results, and the kinds of characterization methods employed (Chapter 2); spectro- and microscopic explorations of X{sub 2}MnGa/Ge (Chapter 3); spectroscopic investigations of the composition series Mn{sub 2}Y Ga to the logical Mn{sub 3}Ga endpoint (Chapter 4); and a summary and overview of upcoming work (Chapter 5). Appendices include the results of a Think Tank for the Graduate School of Excellence MAINZ (Appendix A) and details of an imaging project now in progress on magnetic reversal and domain wall observation in the classical Heusler material Co{sub 2}FeSi (Appendix B).

  17. Past Events | Center for Energy Efficient Materials

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

    Spectrolab, Inc. Jan 24, 2014 | 2:00 PM - 3:00 PM Novel Semiconductor Materials for High-Efficiency Multijunction Photovoltaics Seminar Series Paul Blom: Research Director, Max...

  18. Center for Nanophase Materials Sciences - Newsletter January...

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

    were recently purchased with American Recovery and Reinvestment Act funds, including new SEM and TEMSTEM capabilities for soft materials, small-angle x-ray scattering, and in the...

  19. 2009 > Publications > Research > The Energy Materials Center...

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

    sols Morgan Stefik, Surbhi Mahajan, Hiroaki Sai, Thomas H. Epps III, Frank S. Bates, Sol M. Gruner, Francis J. DiSalvo and Ulrich Wiesner Chemistry of Materials Vol.21, p....

  20. Final Technical Progress Report NANOSTRUCTURED MAGNETIC MATERIALS

    SciTech Connect (OSTI)

    Charles M. Falco

    2012-09-13

    This report describes progress made during the final phase of our DOE-funded program on Nanostructured Magnetic Materials. This period was quite productive, resulting in the submission of three papers and presentation of three talks at international conferences and three seminars at research institutions. Our DOE-funded research efforts were directed toward studies of magnetism at surfaces and interfaces in high-quality, well-characterized materials prepared by Molecular Beam Epitaxy (MBE) and sputtering. We have an exceptionally well-equipped laboratory for these studies, with: Thin film preparation equipment; Characterization equipment; Equipment to study magnetic properties of surfaces and ultra-thin magnetic films and interfaces in multi-layers and superlattices.

  1. Featured Projects: Center for Materials at Irradiation and Mechanical

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

    Extremes: Los Alamos Lab About CMIME The Center for Materials at Irradiation and Mechanical Extremes (CMIME) is a Department of Energy (DOE) Energy Frontier Research Center (EFRC) designed to understand, at the atomic scale, the behavior of materials subject to extreme radiation doses and mechanical stress in order to synthesize new materials that can tolerate such conditions. It is a collaborative effort led by Los Alamos National Laboratory (LANL) that includes the Massachusetts Institute

  2. Center for Nanophase Materials Sciences (CNMS) - Themes

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

    THEMES Electronic and Ionic Functionality on the Nanoscale (EIFN) The overarching goal of the EIFN theme is to explore electronic and ionic material functionalities on the atomic scale and extend this knowledge to the emergent behaviors at the scales of individual nanoparticles and defects and finally to the macroscale, where function can be translated into new technologies. We aim to harness this knowledge to understand and control fundamental mechanisms of coupling between electronic and ionic

  3. Center for Nanophase Materials Sciences (CNMS)

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

    Events CNMS User Newsletters People Contact Us Upcoming Events and Latest News Call For Proposals - OPEN! (Deadline May 4) CNMS User Meeting - August 10-12, 2016 Career Opportunities Recent News: Researchers Stack the Odds for Novel Optoelectronic 2D Materials, Lab Manager Beetle-inspired discovery could reduce frost's costly sting, EurekAlert Submit your ideas for improving CNMS! Research Highlights In-situ Environment Shines Light and Neutrons on Structure-Function Evolution of Polymers

  4. EFRC - Center for Defect Physics in Structural Materials | The Ames

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

    Laboratory EFRC - Center for Defect Physics in Structural Materials Research Personnel Publications Modeling This project will help incorporate our new, efficient, order-N (where N is the number of scattering sites in a defected crystal) method for solving the Poisson's equation for site-centered electronic-structure method used within the center (i.e., the LSMS code) for critical simulations. The method will be extended in collaboration to develop capabilities for relaxation by atomic

  5. Center for Nanophase Materials Sciences (CNMS) - News

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

    IN THE NEWS Archived News "Researchers Stack the Odds for Novel Optoelectronic 2D Materials," Lab Manager (March 2, 2016) "Beetle-inspired discovery could reduce frost's costly sting," EurekAlert (January 22, 2016) "ORNL cell-free protein synthesis is potential lifesaver," EurekAlert! (December 29, 2015) "UT-ORNL breakthrough aims to improve tech gadgets, TVs," Oak Ridge Today (December 28, 2015) "New acoustic technique reveals structural information

  6. Center for Nanoscale Materials Fact Sheet | Argonne National Laboratory

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

    Fact Sheet The Center for Nanoscale Materials at Argonne National Laboratory is a premier user facility providing expertise, instruments, and infrastructure for interdisciplinary nanoscience and nanotechnology research. Academic, industrial, and international researchers can access the center through its user program for both nonproprietary and proprietary research. PDF icon cnm_fact_sheet

  7. Center for Nanophase Materials Sciences (CNMS) - Proposal Review Committee

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

    PROPOSAL REVIEW COMMITTEE Center for Nanophase Materials Sciences Dr. Mark Aindow Department of Materials Science and Engineering University of Connecticut Dr. Marin Alexe Department of Physics University of Warwick Professor Rodney Andrews Director, Center for Applied Energy Research University of Kentucky Dr. Gaurav Arya Department of Nanoengineering University of California, San Diego Professor Perla B. Balbuena Department of Chemical Engineering Texas A&M University Dr. Kenneth J. Balkus

  8. Center for Lightweighting Automotive Materials and Processing | Department

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

    of Energy 09 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ti_06_mallick.pdf More Documents & Publications Center for Lightweighting Automotive Materials and Processing 2008 Annual Merit Review Results Summary - 16. Technology Integration and Education GATE Center of Excellence in Lightweight Materials and Manufacturing Technologies

  9. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Nastasi image of George Gray Contact Information Professor, University of Nebraska-Lincoln Email: Mike Nastasi Phone: 402-472-3852 Bio Education Ph.D., Materials Science and Engineering, Cornell University, 1986 M.S., Materials Science and Engineering, Cornell University, 1983 B.S., Materials Science and Engineering, Cornell University, 1981 Research and Professional Experience Director, Center for Materials at Irradiation and Mechanical Extremes, 2009-present Nano

  10. A Look Inside Argonne's Center for Nanoscale Materials

    ScienceCinema (OSTI)

    Divan, Ralu; Rosenthal, Dan; Rose, Volker; Wai Hla, Saw; Liu, Yuzi

    2014-09-15

    At a very small, or "nano" scale, materials behave differently. The study of nanomaterials is much more than miniaturization - scientists are discovering how changes in size change a material's properties. From sunscreen to computer memory, the applications of nanoscale materials research are all around us. Researchers at Argonne's Center for Nanoscale Materials are creating new materials, methods and technologies to address some of the world's greatest challenges in energy security, lightweight but durable materials, high-efficiency lighting, information storage, environmental stewardship and advanced medical devices.

  11. A Look Inside Argonne's Center for Nanoscale Materials

    SciTech Connect (OSTI)

    Divan, Ralu; Rosenthal, Dan; Rose, Volker; Wai Hla, Saw; Liu, Yuzi

    2014-01-29

    At a very small, or "nano" scale, materials behave differently. The study of nanomaterials is much more than miniaturization - scientists are discovering how changes in size change a material's properties. From sunscreen to computer memory, the applications of nanoscale materials research are all around us. Researchers at Argonne's Center for Nanoscale Materials are creating new materials, methods and technologies to address some of the world's greatest challenges in energy security, lightweight but durable materials, high-efficiency lighting, information storage, environmental stewardship and advanced medical devices.

  12. Center for Nanophase Materials Sciences (CNMS) - 2011 CNMS User Meeting

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

    1 CNMS User Meetin Center for Nanophase Materials Sciences Oak Ridge National Laboratory September 19-20, 2011 Chestnut Ridge Campus of Oak Ridge National Laboratory Oak Ridge, Tennessee User Meeting Announcement User Meeting Agenda Agendas for featured workshops: Advanced Scanning Probe Microscopies at the CNMS: Materials Structure and Function from Atomic to Micron Scales September 21-22, 2011 Materials by Design September 21-22, 2011 Sustainable Energy Future: Nanomaterials Enabled

  13. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    CNMS RESEARCH Systematic reduction of sign errors in many-body calculations of atoms and molecules M. Bajdich,1 M. L. Tiago,1 R. Q. Hood,2 P. R. C. Kent,3 F. A. Reboredo1 1Materials Science and Technology Division, Oak Ridge National Laboratory 2Condensed Matter and Materials Division, Lawrence Livermore National Laboratory 3Center for Nanophase Materials Sciences, Oak Ridge National Laboratory Achievement: We have developed a new systematically convergeable algorithm - Self-Healing Diffusion

  14. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Amit Misra IMage of Nathan Mar Contact Information Los Alamos National Laboratory Materials Physics and Applications Division Center for Integrated Nanotechnologies Phone: (505) 667-9860 amisra@lanl.gov Bio Education Ph.D. (Sep'1994), Materials Science and Engineering, University of Michigan, Ann Arbor M.S. (May 1991), Materials Science and Engineering, University of Michigan, Ann Arbor B.S. (May 1989), Metallurgical Engineering, Institute of Technology-BHU, India Research

  15. 2004 research briefs :Materials and Process Sciences Center.

    SciTech Connect (OSTI)

    Cieslak, Michael J.

    2004-01-01

    This report is the latest in a continuing series that highlights the recent technical accomplishments associated with the work being performed within the Materials and Process Sciences Center. Our research and development activities primarily address the materials-engineering needs of Sandia's Nuclear-Weapons (NW) program. In addition, we have significant efforts that support programs managed by the other laboratory business units. Our wide range of activities occurs within six thematic areas: Materials Aging and Reliability, Scientifically Engineered Materials, Materials Processing, Materials Characterization, Materials for Microsystems, and Materials Modeling and Simulation. We believe these highlights collectively demonstrate the importance that a strong materials-science base has on the ultimate success of the NW program and the overall DOE technology portfolio.

  16. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Supramolecular Self-Assembly of p-conjugated Hydrocarbons via 2D Cooperative CH/p Interaction Qing Li*, Chengbo Han**, Scott R Horton*, Miguel Fuentes-Cabrera*, Bobby G. Sumpter*, Wenchang Lu**, Jerry Bernholc**†, Petro Maksymovych*, and Minghu Pan* *Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge,Tennessee **Center for High Performance Simulation and Department of Physics, North Carolina State University, Raleigh, North Carolina †Computer Science and

  17. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Gordon Bell Prize Emerges From Ongoing Computational Nanoscience Endstation Effort Achievement: A team led by Thomas Schulthess, including Gonzalo Alvarez, Mike Summers, Thomas Maier, and Paul Kent from the Computer Science and Mathematics Division (CSMD) and the Center for Nanophase Materials Sciences (CNMS) Nanomaterials Theory Institute; Jeremy Meredith and Ed D'Azevedo from CSMD; Markus Eisenbach and Don Maxwell from the National Center for Computational Sciences (NCCS); and Jeff Larkin and

  18. Center for Nanophase Materials Sciences (CNMS) - About CNMS

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

    ABOUT CNMS The Center for Nanophase Materials Sciences (CNMS) at Oak Ridge National Laboratory (ORNL) is one of five nanoscience research centers (NSRCs) funded by the U.S. Department of Energy (DOE) Scientific User Facilities Division. It provides a diverse user community - predominantly in the US but also internationally - with access to state-of-the-art nanoscience research capabilities, expertise, and equipment. The scientists at the CNMS also drive a world class science program with

  19. Ames Laboratory scientists create cheaper magnetic material for...

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

    Laboratory scientists create cheaper magnetic material for cars, wind turbines Contacts: For release: April 23, 2015 Karl A. Gschneidner, Division of Materials Sciences and...

  20. Magnetism in Non-Traditional Materials

    SciTech Connect (OSTI)

    Menon, Madhu

    2013-09-17

    We performed a systematic microscopic investigation of two completely dissimilar materials (namely, ZnO and rhombohedral-C{sub 60} polymers) exhibiting ferromagnetism in the presence of defects, and showed that this new phenomena has a common origin and the mechanism responsible can be used as a powerful tool for inducing and tailoring magnetic features in systems which are not magnetic otherwise. Based on our findings we proposed a general recipe for developing ferromagnetism in new materials of great technological interest. Our results support the role of complimentary pairs of defects in inducing magnetism in otherwise non-magnetic materials belonging to two widely differing classes with no apparent correlation between them. In both classes, ferromagnetism is found to be enhanced when the two kinds of defects form structures (pathways) of alternating effective donor and acceptor crystal sites leading to the development of electron charge and spin density like waves. Using ab initio density functional theory calculations we predicted the existence of a new class of carbon cages formed via hybrid connection between planar graphene sheets and carbon nanotubes. The resulting novel structure has the appearance of ?nano-drum? and offers the exciting prospect of integrating useful device properties of both graphene as well as the nanotube into a single unit with tunable electronic properties. Creation of a hexagonal hole in the graphene portion of this structure results in significant magnetic moments for the edge atoms. The structure appears to be capable of sustaining ferrimagnetic state with the assistance of topological defects. The charge and spin distributions obtained in our calculations for the nano-drums are in striking contrast to those in planar graphene nanoribbons with a central hole. In this case, the central hole appears as the complimentary defect to those of the ribbon edges. Similar situation is found in case of the nano-drum in which the complimentary to the hole defects appear to be the pentagons along the curved surface of the drum. Charge oscillations found in the nano-drum are minimized in the nanoribbons. But more importantly, the hole edge atoms in the nano-drums retain significant magnetic moments; almost twice those of the corresponding ones in hydrogenated graphene nanoribbons (H-GNRs). These results suggest that the topological defects in the nano-drums may act like blocks to keep magnetic moments from ?leaking? out from the hole defects. This may have significant implications for the the use of nano-drums in magnetic storage technology where the ratio, magnetic-moment/weight, is of paramount importance in any futuristic device applications. One of the basic problems of the DFT/LSDA+U theory is the efficient evaluation of the U-term. With this in mind we proposed an alternative approach for its calculation which is based on the knowledge of the Hartree-Fock wave functions of the system under consideration. As a result, the proposed approach is closer to the basic definition of the DFT/LSDA+U scheme and its hybrid-DFT nature. According to our approach, the U value is obtained in a consistent and ab-initio way using the self-consistently calculated wave functions of the given system at the level of the HF approximation. Our method is applicable for systems which include more than one type of elements with localized d-orbitals. The method has been applied the case of the doped Zn(Co)O systems successfully. Currently, theories based on conventional superexchange or double-exchange interactions cannot explain long range magnetic order at concentrations below percolation threshold in dilute magnetic semiconductors. On the other hand, the codoping induced magnetism, which can justify magnetic interactions below percolation threshold, has eluded explanation. With this in mind, we proposed that defect-induced magnetism in codoped non-magnetic materials can be viewed within a molecular generalization of the atomic double-exchange and superexchange interactions applied to an arbitrary bipartite lattice host

  1. SYNTHESIS AND CHARACTERIZATION OF ADVANCED MAGNETIC MATERIALS

    SciTech Connect (OSTI)

    Monica Sorescu

    2004-09-22

    The work described in this grant report was focused mainly on the properties of novel magnetic intermetallics. In the first project, we synthesized several 2:17 intermetallic compounds, namely Nd{sub 2}Fe{sub 15}Si{sub 2}, Nd{sub 2}Fe{sub 15}Al{sub 2}, Nd{sub 2}Fe{sub 15}SiAl and Nd{sub 2}Fe{sub 15}SiMn, as well as several 1:12 intermetallic compounds, such as NdFe{sub 10}Si{sub 2}, NdFe{sub 10}Al{sub 2}, NdFe{sub 10}SiAl and NdFe{sub 10}MnAl. In the second project, seven compositions of Nd{sub x}Fe{sub 100-x-y}B{sub y} ribbons were prepared by a melt spinning method with Nd and B content increasing from 7.3 and 3.6 to 11 and 6, respectively. The alloys were annealed under optimized conditions to obtain a composite material consisting of the hard magnetic Nd{sub 2}Fe{sub 14}B and soft magnetic {alpha}-Fe phases, typical of a spring magnet structure. In the third project, intermetallic compounds of the type Zr{sub 1}Cr{sub 1}Fe{sub 1}T{sub 0.8} with T = Al, Co and Fe were subjected to hydrogenation. In the fourth project, we performed three crucial experiments. In the first experiment, we subjected a mixture of Fe{sub 3}O{sub 4} and Fe (80-20 wt %) to mechanochemical activation by high-energy ball milling, for time periods ranging from 0.5 to 14 hours. In the second experiment, we ball-milled Fe{sub 3}O{sub 4}:Co{sup 2+} (x = 0.1) for time intervals between 2.5 and 17.5 hours. Finally, we exposed a mixture of Fe{sub 3}O{sub 4} and Co (80-20 wt %) to mechanochemical activation for time periods ranging from 0.5 to 10 hours. In all cases, the structural and magnetic properties of the systems involved were elucidated by X-ray diffraction (XRD), Moessbauer spectroscopy and hysteresis loop measurements. The four projects resulted in four papers, which were published in Intermetallics, IEEE Transactions on Magnetics, Journal of Materials Science Letters and Materials Chemistry and Physics. The contributions reveal for the first time in literature the effect of substitutions on the hyperfine magnetic field of neodymium-based intermetallics, the correlation between structure and magnetic properties in spring magnets, the unique effects induced by hydrogenation on the hyperfine parameters of iron-rich intermetallics and the characteristics of the ball milling process in systems containing magnetite.

  2. Center for Nanophase Materials Sciences (CNMS) - 2012 CNMS User Meeting

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

    2 CNMS USER MEETING Center for Nanophase Materials Sciences Oak Ridge National Laboratory September 14, 2012 Chestnut Ridge Campus of Oak Ridge National Laboratory Oak Ridge, Tennessee User Meeting Announcement User Meeting Agenda and Abstract Booklet Agendas for featured workshops: Nanoscale Imaging for Energy Applications September 11-13, 2012 (begins 1pm on 9/11) Transmission Electron Microscopy for Soft Materials September 12-13, 2012 Second Photovoltaics School (Photovoltaics from

  3. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Electromechanical Actuation and Current-Induced Metastable States in Suspended Single-Crystalline VO2 Nanoplatelets A. Tselev,1 J. D. Budai,2 E. Strelcov,3 J. Z. Tischler,2 A. Kolmakov3, and S. V. Kalinin1 1-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 2-Materials Science & Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 3-Physics Department, Southern Illinois University Carbondale, Carbondale, IL 62901 Achievement A

  4. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    An optimized nanoparticle separator enabled by elecron beam induced deposition J. D. Fowlkes,1 M. J. Doktycz2 and P. D. Rack1,3 1Nanofabricatin Research Laboratory, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory 2Biological and Nanoscale Systems Group, Biosciences Division, Oak Ridge National Laboratory 3Materials Science and Engineering Department, The University of Tennessee, Knoxville, TN Achievement Size-based separations technologies will inevitably benefit from

  5. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Intrinsic Nucleation Mechanism of Polarization Switching on Ferroelectric Surfaces Peter Maksymovych,1 Stephen Jesse,1 Mark Huijben,2 Ramamoorthy Ramesh,2 Anna Morozovska,3 Samrat Choudhury,4 Long-Qing Chen,4 Arthur P. Baddorf,1 and Sergei V. Kalinin1 1Center for Nanophase Materials Sciences, Oak Ridge National Laboratory; 2Department of Materials Sciences and Engineering and Department of Physics, University of California Berkeley; 3Lashkaryov Institute for Semiconductor Physics, National

  6. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Polarization Control of Electron Tunneling into Ferroelectric Surfaces Peter Maksymovych1, Stephen Jesse1, Pu Yu2, Ramamoorthy Ramesh2, Arthur P. Baddorf,1 and Sergei V. Kalinin1 1 The Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 2Department of Materials Sciences and Engineering and Department of Physics, University of California Berkeley Achievement We have discovered that polarization switching in 30-50 nm oxide films of lead-zirconate and bismuth

  7. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    and Interface Reconstruction in Functional Oxides Junsoo Shin,1,2 Albina Borisevich,1 Vincent Meunier,3 Jing Zhou,4 E. Ward Plummer,5 Sergei V. Kalinin,3 and Arthur P. Baddorf3 1-Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 2-Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996 3-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 4-Department of

  8. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Synthesis of Well-defined Poly(amino acids): Polytyrosine Derivatives Jamie M. Messman1, Deanna L. Pickel1, Apostolos Avgeropoulos2, and Nikolaos Politakos2 1Macromolecular Nanomaterials Group, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 2Department of Materials Science and Engineering, University of Ioannina, Greece Achievement In collaboration with CNMS users from the University of Ioannina, Greece, we developed a synthesis route for the monomer,

  9. Home > The Energy Materials Center at Cornell

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

    Our Directors Paul Mutolo and Héctor Abruña Catalyst aging The Muller group helps determine aging mechanisms in fuel cell nanoparticle cata... A recipe for the future Prof. Darrell Schlom and his research group are cooking up new oxides for ... Mission THE ENERGY MATERIALS CENTER AT CORNELL Advancing the science of energy conversion and storage by understanding and exploiting fundamental properties of active materials and their interfaces. News + Events Room-temperature lithium metal battery

  10. REACT: Alternatives to Critical Materials in Magnets

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: The 14 projects that comprise ARPA-Es REACT Project, short for Rare Earth Alternatives in Critical Technologies, are developing cost-effective alternatives to rare earths, the naturally occurring minerals with unique magnetic properties that are used in electric vehicle (EV) motors and wind generators. The REACT projects will identify low-cost and abundant replacement materials for rare earths while encouraging existing technologies to use them more efficiently. These alternatives would facilitate the widespread use of EVs and wind power, drastically reducing the amount of greenhouse gases released into the atmosphere.

  11. Apparatus for magnetic separation of paramagnetic and diamagnetic material

    DOE Patents [OSTI]

    Doctor, R.D.

    1988-10-18

    The present invention relates to methods and apparatus for segregating paramagnetic from diamagnetic particles in particulate material and, in particular, to the open gradient magnetic separation of ash producing components and pyritic sulfur from coal. The apparatus includes a vertical cylinder and a rotatable vertical screw positioned within the cylinder, the screw having a helical blade angled downwardly and outwardly from the axis. Rotation of the vertical screw causes denser particles, which in the case of coal include pyritic sulfur and ash, which are paramagnetic, to migrate to the outside of the screw, and less dense particles, such as the low sulfur organic portion of the coal, which are diamagnetic, to migrate towards the center of the screw. A vibration mechanism attached to the screw causes the screw to vibrate during rotation, agitating and thereby accommodating further segregation of the particles. An open gradient magnetic field is applied circumferentially along the entire length of the screw by a superconducting quadrupole magnet. The open gradient magnetic field further segregates the paramagnetic particles from the diamagnetic particles. The paramagnetic particles may then be directed from the cylinder into a first storage bin, and the diamagnetic particles, which are suitable for relatively clean combustion, may be directed into a second storage bin. 5 figs.

  12. Apparatus for magnetic separation of paramagnetic and diamagnetic material

    DOE Patents [OSTI]

    Doctor, R.D.

    1986-07-24

    The present invention relates to methods and apparatus for segregating paramagnetic from diamagnetic particles in particulate material and, in particular, to the open gradient magnetic separation of ash producing components and pyritic sulfur from coal. The apparatus includes a vertical cylinder and a rotatable vertical screw positioned within the cylinder, the screw having a helical blade angled downwardly and outwardly from the axis. Rotation of the vertical screw causes denser particles, which in the case of coal include pyritic sulfur and ash, which are paramagnetic, to migrate to the outside of the screw, and less dense particles, such as the low sulfur organic portion of the coal, which are diamagnetic, to migrate towards the center of the screw. A vibration mechanism attached to the screw causes the screw to vibrate during rotation, agitating and thereby accommodating further segregation of the particles. An open gradient magnetic field is applied circumferentially along the entire length of the screw by a superconducting quadrupole magnet. The open gradient magnetic field further segregates the paramagnetic-particles from the diamagnetic particles. The paramagnetic particles may then be directed from the cylinder into a first storage bin, and the diamagnetic particles, which are suitable for relatively clean combustion, may be directed into a second storage bin. 5 figs.

  13. Apparatus for magnetic separation of paramagnetic and diamagnetic material

    DOE Patents [OSTI]

    Doctor, Richard D. (Glen Ellyn, IL)

    1988-01-01

    The present invention relates to methods and apparatus for segregating paramagnetic from diamagnetic particles in particulate material and, in particular, to the open gradient magnetic separation of ash producing components and pyritic sulfur from coal. The apparatus includes a vertical cylinder and a rotatable vertical screw positioned within the cylinder, the screw having a helical blade angled downwardly and outwardly from the axis. Rotation of the vertical screw causes denser particles, which in the case of coal include pyritic sulfur and ash, which are paramagnetic, to migrate to the outside of the screw, and less dense particles, such as the low sulfur organic portion of the coal, which are diamagnetic, to migrate towards the center of the screw. A vibration mechanism attached to the screw causes the screw to vibrate during rotation, agitating and thereby accommodating further segregation of the particles. An open gradient magnetic field is applied circumferentially along the entire length of the screw by a superconducting quadropole magnet. The open gradient magnetic field further segregates the paramagnetic particles from the diamagnetic particles. The paramagnetic particles may then be directed from the cylinder into a first storage bin, and the diamagnetic particles, which are suitable for relatively clean combustion, may be directed into a second storage bin.

  14. Energy Frontier Research Center, Center for Materials Science of Nuclear Fuels

    SciTech Connect (OSTI)

    Todd R. Allen

    2011-12-01

    This is a document required by Basic Energy Sciences as part of a mid-term review, in the third year of the five-year award period and is intended to provide a critical assessment of the Center for Materials Science of Nuclear Fuels (strategic vision, scientific plans and progress, and technical accomplishments).

  15. Magnetic filtration process, magnetic filtering material, and methods of forming magnetic filtering material

    DOE Patents [OSTI]

    Taboada-Serrano, Patricia; Tsouris, Constantino; Contescu, Cristian I; McFarlane, Joanna

    2013-10-08

    The present invention provides magnetically responsive activated carbon, and a method of forming magnetically responsive activated carbon. The method of forming magnetically responsive activated carbon typically includes providing activated carbon in a solution containing ions of ferrite forming elements, wherein at least one of the ferrite forming elements has an oxidation state of +3 and at least a second of the ferrite forming elements has an oxidation state of +2, and increasing pH of the solution to precipitate particles of ferrite that bond to the activated carbon, wherein the activated carbon having the ferrite particles bonded thereto have a positive magnetic susceptibility. The present invention also provides a method of filtering waste water using magnetic activated carbon.

  16. Center for Nanophase Materials Sciences (CNMS) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Nanophase Materials Sciences (CNMS) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators'

  17. Center for Nanoscale Materials (CNM) | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Nanoscale Materials (CNM) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES Home

  18. Magnetic Material for PM Motors | Department of Energy

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

    Magnetic Material for PM Motors Magnetic Material for PM Motors 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon pmp_23_anderson.pdf More Documents & Publications Permanent Magnet Development for Automotive Traction Motors Vehicle Technologies Office: 2009 Propulsion Materials R&D Annual Progress Report Iver Anderson, Division of Materials Sciences and Engineering, The Ames Laboratory,

  19. Non-Rare Earth magnetic materials | Department of Energy

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

    magnetic materials Non-Rare Earth magnetic materials 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon pm035_mcguire_2011_o.pdf More Documents & Publications Non-Rare Earth magnetic materials (Agreement ID:19201) Vehicle Technologies Office: 2011 Propulsion Materials R&D Annual Progress Report Vehicle Technologies Office: 2012 Propulsion

  20. Center for Nanophase Materials Sciences (CNMS) - 2010 CNMS User Meeting

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

    0 CNMS User Meeting Center for Nanophase Materials Sciences Oak Ridge National Laboratory September 13-14, 2010 Chestnut Ridge Campus of Oak Ridge National Laboratory Oak Ridge, Tennessee User Meeting Announcement User Meeting Agenda Agendas for associated workshops: Next Generation Force-Fields for Nanoscience September 15-16, 2010 Sustainable Energy Future: Focus on Organic Photovoltaics September 15-16, 2010 Scanning Probe Microscopy for Energy Applications September 15-17, 2010

  1. Center for Nanophase Materials Sciences (CNMS) - 2014 CNMS User Meeting

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

    4 CNMS USER MEETING Center for Nanophase Materials Sciences Oak Ridge National Laboratory September 15-19, 2014 Chestnut Ridge Campus of Oak Ridge National Laboratory Oak Ridge, Tennessee User Meeting Announcement User Meeting Agenda and Abstract Booklet Panel Session: Q&A with CNMS Senior Staff Agendas for featured workshops: Electrochemical Strain Microscopy September 15-16, 2014 In Situ Electron Microscopy and Imaging September 18-19, 2014

  2. Center for Nanophase Materials Sciences (CNMS) - Archived CNMS Research

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

    Highlights CNMS USER RESEARCH Fluctuations and Correlations in Physical and Biological Nanosystems Michael L. Simpson and Peter T. Cummings Center for Nanophase Materials Science, Oak Ridge National Laboratory When components at one level (atoms, molecules, nanostructures, etc) are coupled together to form higher-level - mesoscale - structures, new collective phenomena emerge. Optimizing such systems requires embracing stochastic fluctuations in a manner similar to that found in nature.

  3. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Micro/nanofabricated environments for synthetic biology C. Patrick Collier and Michael L. Simpson Nanofabrication Research Laboratory, Center for Nanophase Materials Sciences Oak Ridge National Laboratory, Oak Ridge, TN 37831-6493 A better understanding of how confinement, crowding and reduced dimensionality modulate reactivity and reaction dynamics will aid in the rational and systematic discovery of functionality in complex biological systems. Artificial micro- and nanofabricated structures

  4. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Transient-Mediated fate determination in a transcriptional circuit of HIV Leor S. Weinberger (University of California, San Diego), Roy D. Dar (University of Tennessee), and Michael L. Simpson (Center for Nanophase Materials Sciences, Oak Ridge National Laboratory) Achievement One of the greatest challenges in the characterization of complex nanoscale systems is gaining a mechanistic understanding of underlying processes that cannot be directly imaged. Recent research at the CNMS1 explored a

  5. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Understanding the Interaction Between Nanoscale Building Blocks and Biologically Relevant Molecules X. Zhao (CNMS Postdoc), A. Striolo (U of Oklahoma, now CNMS User), and P. T. Cummings (CNMS Staff) Scientists at Oak Ridge National Laboratory's new Center for Nanophase Materials Sciences (CNMS) are leading the way in developing detailed molecular-level understanding of how nanomaterials may interact with biologically important molecules. A provocative experimental study, published in 2004,

  6. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Antioxidant Deactivation on Graphenic Nanocarbon Surfaces Xinyuan Liu,1 Sujat Sen,1 Jingyu Liu,1 Indrek Kulaots,2 David Geohegan,3 Agnes Kane,4 Alex A. Puretzky,3 Christopher M. Rouleau,3 Karren L. More,5 G. Tayhas R. Palmore,2 and Robert H. Hurt2 1-Dept Chemistry, Brown University 2-School of Engineering, Brown University 3-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory 4-Dept Pathology & Laboratory Medicine, Brown University 5-Shared Research Equipment Facility, Oak

  7. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Nature of the Pairing Interaction in the Hubbard Model of High-Temperature Superconductors Thomas A. Maier (CNMS Staff); Douglas J. Scalapino (CNMS User), University of California, Santa Barbara, and Mark Jarrell (CNMS User) University of Cincinnati Achievement The nature of the pairing interaction that mediates superconductivity in the two-dimensional Hubbard model has been addressed numerically in a user project at the Center for Nanophase Materials Sciences. The Hubbard model exhibits several

  8. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Small Angle Neutron Scattering Study of Conformation of Oligo(ethylene glycol)-Grafted Polystyrene in Dilute Solutions: Effect of the Backbone Length Gang Cheng,1 Yuri B. Melnichenko,1 George D. Wignall,1 Fengjun Hua,2 Kunlun Hong,2 and Jimmy W. Mays2 1Neutron Scattering Sciences Division, Oak Ridge National Laboratory 2Center for Nanophase Materials Sciences, Oak Ridge National Laboratory Achievement: The cooperative interactions among functional segments of biopolymers have led to attempts to

  9. Center for Nanophase Materials Sciences (CNMS) - User Publications

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

    ACKNOWLEDGEMENT GUIDELINES Sponsor Acknowledgement CNMS users must include the following acknowledgement on all publications that include work done at the CNMS: [A portion of]* This research was conducted at the Center for Nanophase Materials Sciences, which is a DOE Office of Science User Facility. *DOE expects the acknowledgment to indicate which parts of the reported work were supported by which agency whenever possible. Therefore, it is preferable to state, for example, "Fabrication of

  10. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Characterization and Carbonization of Highly-Oriented Poly(diiododiacetylene) Nanofibers Liang Luo,1 Christopher Wilhelm,1 Christopher N. Young,2 Clare P. Grey,1 Gary P. Halada,2 Kai Xiao,3 Ilia N. Ivanov,3 Jane Y. Howe,4 David B. Geohegan,3 and Nancy S. Goroff1 1-Department of Chemistry, State University of New York, Stony Brook, NY 11794 2-Department of Material Science and Engineering, State University of New York, Stony Brook, NY 11794 3-Center for Nanophase Materials Sciences, Oak Ridge

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

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

    Tunable Metallic Conductance in Ferroelectric Nanodomains Peter Maksymovych,1 Anna N. Morozovska,2,3 Pu Yu,4 Eugene A. Eliseev,3 Ying-Hao Chu,4,5 Ramamoorthy Ramesh,4 Arthur P. Baddorf,1 and Sergei V. Kalinin1 1 Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, TN, 37831 2 Institute of Semiconductor Physics, National Academy of Science of Ukraine,41, pr. Nauki, 03028 Kiev, Ukraine 3 Institute for Problems of Materials Science, National Academy of Science of

  12. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Low-Voltage, Low-Power Organic Light-Emitting Transistors for AMOLED Displays M. A. McCarthy,1,2 B. Liu,1 E. P. Donoghue,1 I. Kravchenko,3 D. Y. Kim,2 F. So,2 and A. G. Rinzler1 1-Department of Physics, University of Florida, Gainesville, FL 32611 2-Department of Materials Science and Engineering, University of Florida, Gainesville, FL 32611 3-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37830 Achievement Organic light-emitting diode (OLED) layers have

  13. Staff > Center Alumni > The Energy Materials Center at Cornell

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

    Center Alumni Page 1 of 3 ⇐ Previous | Next ⇒ Here are past members and where they are now. List Image Mahmut Aksit Senior Materials Chemist - 3M ma573@cornell.edu List Image Nicole Benedek Asst. Professor - UT Austin nicole.benedek@austin.utexas.edu List Image Robert Berger Asst. Professor - Western Washington University robert.berger@wwu.edu List Image Turan Birol Postdoc - Rutgers University tb238@cornell.edu List Image Raymond Burns Product Research Technologist - Exxon Mobile

  14. Modeling Magnetism in Rare-Earth Intermetallic Materials | The Ames

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

    Laboratory Modeling Magnetism in Rare-Earth Intermetallic Materials Theoretical modeling has led to a key development in our understanding of the deeply complex magnetic properties in a series of rare-earth intermetallic materials. Rare-earth elements are unique in that their cores hold strongly localized electrons that underpin their novel magnetic properties. When combined with transition metals, rare earths become technologically-useful intermetallic materials. Here gadolinium-an element

  15. Electronic & magnetic materials and devices at the CNM | Argonne...

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

    Electronic & magnetic materials and devices at the CNM Graphene Micrograph 1 of 24 Graphene Micrograph Ultra-high vacuum scanning tunneling microscopy image of a point defect in...

  16. Center for Nanophase Materials Sciences (CNMS) - Archived News

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

    NEWS "New material could lead to longer-lasting batteries," PC World (October 24, 2014) "Super stable garnet ceramics may be ideal for high-energy lithium batteries," ChemEurope (October 23, 2014) "Novel approach to magnetic measurements atom-by-atom," Uppsala University (October 1, 2014) "Pixel Engineered Electronics Have Growth Potential," Rice University (September 29, 2014) "Interface surprises may motivate novel oxide electronic devices,"

  17. Center for Nanophase Materials Sciences (CNMS) - Archived CNMS Research

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

    Highlights ARCHIVED CNMS RESEARCH HIGHLIGHTS Correlating Electronic Transport to Atomic Structures in Self-Assembled Quantum Wires Shengyong Qin,1 Tae-Hwan Kim,1 Yanning Zhang,2 Wenjie Ouyang,2 Hanno H. Weitering,3 Chih-Kang Shih,4 Arthur P. Baddorf,1 Ruqian Wu,2 and An-Ping Li1 1-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 2-Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA 3-Department of Physics and

  18. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    PS-b-P3HT Copolymers as P3HT/PCBM Interfacial Compatibilizers for High Efficiency Photovoltaics Zhenzhong Sun1, Kai Xiao2, Jong Kahk Keum3, Xiang Yu2, Kunlun Hong1, Jim Browning3, Ilia Ivanov1, Jihua Chen2, Jose Alonzo3, Dawen Li1, Bobby Sumpter2, Andrew Payzant2, Christopher Rouleau2, and David Geohegan2 1-Department of Electrical and Computer Engineering, University of Alabama, Tuscaloosa, AL 2-Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 3-Neutron

  19. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Journal Cover Journal of Applied Physics March 15, 2008 issue A team of researchers from the Center for Nanophase Materials Sciences (CNMS) has written the cover article in the March 15, 2008, issue of the Journal of Applied Physics. "Surface characterization and functionalization of carbon nanofibers" is a comprehensive review article authored by K. L. Klein, A. V. Melechko, T. E. McKnight, S. T. Retterer, P. D. Rack, J. D. Fowlkes, D. C. Joy and M. L. Simpson. This team is widely

  20. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Dynamic Conductivity of Ferroelectric Domain Walls in BiFeO3 Peter Maksymovych,1 Jan Seidel,2-3 Ying Hao Chu,4 Pingping Wu,5 Arthur P. Baddorf,1 Long-Qing Chen,5 Sergei V. Kalinin,1 and Ramamoorthy Ramesh2-3 1 Center for Nanophase Materials Science, Oak Ridge National Laboratory 2 Lawrence Berkeley National Laboratory 3 University of California, Berkeley 4 National Chiao Tung University, Taiwan 5 Pennsylvania State University Achievement Two years ago, electrical conductivity was discovered in

  1. Center for Nanophase Materials Sciences (CNMS) - CNMS Contacts

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

    CNMS CONTACTS Mailing address: Center for Nanophase Materials Sciences Oak Ridge National Laboratory P.O. Box 2008 Oak Ridge, TN 37831-6496 FAX: 865.574.1753 Staff Directory Organization Chart Director Hans Christen christenhm@ornl.gov P: 865.574.5081 Deputy Director Bobby Sumpter sumpterbg@ornl.gov P: 865.574.4973 Division Administrative Support Amanda Zetans, zetansac@ornl.gov P: 865.241.1182 User Program Manager Tony Haynes, hayneste@ornl.gov P: 865.576.2858 Operations Manager Scott

  2. Ames Laboratory scientists create cheaper magnetic material for cars, wind

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

    turbines | The Ames Laboratory cheaper magnetic material for cars, wind turbines Contacts: For release: April 23, 2015 Karl A. Gschneidner, Division of Materials Sciences and Engineering, (515) 294-7931 Laura Millsaps, Public Affairs, (515) 294-3474 Karl A. Gschneidner and fellow scientists at the U.S. Department of Energy's Ames Laboratory have created a new magnetic alloy that is an alternative to traditional rare-earth permanent magnets. The new alloy-a potential replacement for

  3. Center for Nanophase Materials Sciences (CNMS) - Soft Condensed Matter

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

    Design Core materials characterization Core materials characterization

  4. CENTER

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

    Science and people highlights from the Lujan Neutron Scattering Center at LANSCE CENTER SCIENCE & PEOPLE the Lujan April 2014 LA-UR-14-22812 I N S I D E 2 Seeking design rules for efficient lighting sources 3 Rate-dependent deformation mechanisms in beryllium 4 Improved understanding of a semiconductor used in infrared detectors 6 Mike Fitzsimmons elected NNSA Fellow 7 Pressure tuning: a new approach for making zero thermal expansion materials 8 Neutron scattering enables structural

  5. Feed Materials Production Center annual environmental report for calendar 1989

    SciTech Connect (OSTI)

    Dugan, T.A.; Gels, G.L.; Oberjohn, J.S.; Rogers, L.K.

    1990-10-01

    The mission of the Department of Energy's (DOE) Feed Materials Production Center (FMPC) has been to process uranium for United States' defense programs. On July 10, 1989, the FMPC suspended production operations, but remains on standby for certain segments of production. The FMPC also manages the storage of some radioactive and hazardous materials. As part of its operations, the FMPC continuously monitors the environment to determine that it is operating within federal and state standards and guidelines regarding emission of radioactive and nonradioactive materials. Data collected from the FMPC monitoring program are used to calculate estimates of radiation dose for residents due to FMPC operations. For 1989, the estimate of dose through the air pathway, excluding radon, indicated that people in the area were exposed to less than 6% of the DOE guideline established to protect the public from radiation exposure. When radon emissions are included, the dose from FMPC operations during 1989 was less than 22% of the annual background radiation dose in the Greater Cincinnati area. This report is a summary of FMPC's environmental activities and monitoring program for 1989. An Environmental Compliance Self-Assessment presents the FMPC's efforts to comply with environmental regulations through June 1990. 44 refs., 48 figs.

  6. Electronic & Magnetic Materials & Devices | Argonne National...

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

    laser spectroscopy, molecular beam epitaxy, and novel approaches for hybrid, organic and nanoparticle materials synthesis. Research activities include: Low-dimensional materials...

  7. Final Report: Stability and Novel Properties of Magnetic Materials and

    Office of Scientific and Technical Information (OSTI)

    Ferromagnet / Insulator Interfaces (Technical Report) | SciTech Connect Technical Report: Final Report: Stability and Novel Properties of Magnetic Materials and Ferromagnet / Insulator Interfaces Citation Details In-Document Search Title: Final Report: Stability and Novel Properties of Magnetic Materials and Ferromagnet / Insulator Interfaces We report investigations of the synthesis, structure, and properties of new materials for spintronic applications integrated onto silicon substrates.

  8. Critical Magnetic Field Determination of Superconducting Materials

    SciTech Connect (OSTI)

    Canabal, A.; Tajima, T.; Dolgashev, V.A.; Tantawi, S.G.; Yamamoto, T.; /Tsukuba, Natl. Res. Lab. Metrol.

    2011-11-04

    Superconducting RF technology is becoming more and more important. With some recent cavity test results showing close to or even higher than the critical magnetic field of 170-180 mT that had been considered a limit, it is very important to develop a way to correctly measure the critical magnetic field (H{sup RF}{sub c}) of superconductors in the RF regime. Using a 11.4 GHz, 50-MW, <1 {mu}s, pulsed power source and a TE013-like mode copper cavity, we have been measuring critical magnetic fields of superconductors for accelerator cavity applications. This device can eliminate both thermal and field emission effects due to a short pulse and no electric field at the sample surface. A model of the system is presented in this paper along with a discussion of preliminary experimental data.

  9. Postdoctoral Research Fellow Center for Nanophase Materials Sciences

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

    & transport properties of the materials, which in turn can be used to engineer better solid electrolyte materials 2. Automation & Data Analytics * Designing a new material for...

  10. Environmental Survey preliminary report, Feed Materials Production Center, Fernald, Ohio

    SciTech Connect (OSTI)

    Not Available

    1987-03-01

    This report presents the preliminary findings from the first phase of the environmental survey of the United States Department of Energy (DOE) Feed Materials Production Center (FMPC), conducted June 16 through 27, 1986. The survey is being conducted by an interdisciplinary team of environmental specialists, led and managed by the Office of Environment, Safety and Health's Office of Environmental Audit. Individual team components are being supplied by a private contractor. The objective of the survey is to identify environmental problems and areas of environmental risk associated with the FMPC. The survey covers all environmental media and all areas of environmental regulation. It is being performed in accordance with the DOE Environmental Survey Manual. This phase of the survey involves the review of existing site environmental data, observations of the operations carried on at FMPC, and interviews with site personnel. The survey team developed a Sampling and Analysis Plan to assist in further assessing certain of the environmental problems identified during its onsite activities. The Sampling and Analysis Plan will be executed by a DOE national laboratory or a support contractor. When completed, the results will be incorporated into the FMPC Environmental Survey Interim Report. The Interim Report will reflect the final determinations of the FMPC survey. 41 refs., 20 figs., 25 tabs.

  11. Digital lock-in detection of site-specific magnetism in magnetic materials

    DOE Patents [OSTI]

    Haskel, Daniel (Naperville, IL); Lang, Jonathan C. (Naperville, IL); Srajer, George (Oak Park, IL)

    2008-07-22

    The polarization and diffraction characteristics of x-rays incident upon a magnetic material are manipulated to provide a desired magnetic sensitivity in the material. The contrast in diffracted intensity of opposite helicities of circularly polarized x-rays is measured to permit separation of magnetic signals by element type and by atomic environment. This allows for the direct probing of magnetic signals from elements of the same species in nonequivalent atomic environments to better understand the behavior and characteristics of permanent magnetic materials. By using known crystallographic information together with manipulation of the polarization of x-rays having energies tuned near element-specific electronic excitations and by detecting and comparing the incident and diffracted photons at the same frequency, more accurate magnetic measurements can be made over shorter observation periods.

  12. Electromagnetic valve for controlling the flow of molten, magnetic material

    DOE Patents [OSTI]

    Richter, Tomas (State College, PA)

    1998-01-01

    An electromagnetic valve for controlling the flow of molten, magnetic material is provided, which comprises an induction coil for generating a magnetic field in response to an applied alternating electrical current, a housing, and a refractory composite nozzle. The nozzle is comprised of an inner sleeve composed of an erosion resistant refractory material (e.g., a zirconia ceramic) through which molten, magnetic metal flows, a refractory outer shell, and an intermediate compressible refractory material, e.g., unset, high alumina, thermosetting mortar. The compressible refractory material is sandwiched between the inner sleeve and outer shell, and absorbs differential expansion stresses that develop within the nozzle due to extreme thermal gradients. The sandwiched layer of compressible refractory material prevents destructive cracks from developing in the refractory outer shell.

  13. Electromagnetic valve for controlling the flow of molten, magnetic material

    DOE Patents [OSTI]

    Richter, T.

    1998-06-16

    An electromagnetic valve for controlling the flow of molten, magnetic material is provided, which comprises an induction coil for generating a magnetic field in response to an applied alternating electrical current, a housing, and a refractory composite nozzle. The nozzle is comprised of an inner sleeve composed of an erosion resistant refractory material (e.g., a zirconia ceramic) through which molten, magnetic metal flows, a refractory outer shell, and an intermediate compressible refractory material, e.g., unset, high alumina, thermosetting mortar. The compressible refractory material is sandwiched between the inner sleeve and outer shell, and absorbs differential expansion stresses that develop within the nozzle due to extreme thermal gradients. The sandwiched layer of compressible refractory material prevents destructive cracks from developing in the refractory outer shell. 5 figs.

  14. Executive Summaries for the Hydrogen Storage Materials Center...

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

    contains the executive summaries of the final technical reports from the three Hydrogen Storage Centers of Excellence that operated from 2005 through 2010 to develop advanced...

  15. Staff > > The Energy Materials Center at Cornell

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

    People Leadership Team Faculty Directory Researchers, Postdocs & Graduates Scientific Advisory Board Center Alumni Here are past members and where they are now.

  16. Resources > Partnerships > The Energy Materials Center at Cornell

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

    + Events Resources for Prospective Partners CONTENT COMING SOON Cornell Standard NDA Sample Sponsored Contract Language Standard Intellectual Property terms Center member form...

  17. Center for Materials at Irradiation and Mechanical Extremes:...

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

    materials physicists. He is also Director of the Doctoral Training Centre on Theory and Simulation of Materials at Imperial, where he leads 50 academics in the Departments of...

  18. Ames Laboratory a partner in DOE Center for Computational Materials...

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

    materials, as well as a companion database to predict targeted properties with energy-related application to thermoelectric materials. READ MORE at Brookhaven National Laboratory....

  19. Microporous magnets | Center for Gas SeparationsRelevant to Clean Energy

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

    Technologies | Blandine Jerome Microporous magnets Previous Next List Pierre Dechambenoit and Jeffrey R. Long, Chem. Soc. Rev., 2011,40, 3249-3265 DOI: 10.1039/C0CS00167H Graphical abstract: Microporous magnets Abstract: Combining porosity and magnetic ordering in a single material presents a significant challenge since magnetic exchange generally requires short bridges between the spin carriers, whereas porosity usually relies on the use of long diamagnetic connecting ligands. Despite this

  20. Materials Down Select Decisions Made Within the Department of Energy Hydrogen Sorption Center of Excellence

    Fuel Cell Technologies Publication and Product Library (EERE)

    Technical report describing DOE's Hydrogen Sorption Center of Excellence investigation into various adsorbent and chemisorption materials and progress towards meeting DOE's hydrogen storage targets. T

  1. Extraordinary Responsive Rare Earth Magnetic Materials | The Ames

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

    Laboratory Extraordinary Responsive Rare Earth Magnetic Materials Research Personnel Updates Publications https://www.ameslab.gov/dmse/highlight/real-estate-atoms-it-all-about-location-location-location Read More Rare Earth Alloys - Why Purity Matters Read More A Mystery at Cryogenic Temperatures Read More Previous Pause Next Synthesis Responsive systems, where a small change of an extrinsic thermodynamic variable, such as temperature, pressure, or magnetic field, triggers an intrinsic phase

  2. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Standing Friedel Waves, Standing Spin Waves, and Indirect Bandgap Optical Transition in Nanostructures Jun-Qiang Lu1, X.-G. Zhang1,2, and Sokrates T. Pantelides3 1Center for...

  3. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    Expression Optimization and Synthetic Gene Networks in Cell-free Systems David K. Karig,1 Sukanya Iyer,2,3 Michael L. Simpson,1,4,5 Mitchel J. Doktycz,1,2 1-Center for Nanophase...

  4. Mahmut Aksit > Senior Materials Chemist - 3M > Center Alumni > The Energy

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

    Materials Center at Cornell Mahmut Aksit Senior Materials Chemist - 3M ma573@cornell.edu Formerly a member of the Robinson Group, he received his PhD in June 2014.

  5. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Kenneth J. McClellan Contact Information Los Alamos National Laboratory Materials Science & Technology Division Structure/Property Relations, MS G755 Phone: (505) 667-5452 kmcclellan@lanl.gov Bio Education Ph.D., Materials Science and Engineering, Case Western Reserve University, 1994 M.S., Materials Science and Engineering, Case Western Reserve University, 1991 B.S., Metallurgy and Materials Science, Case Western Reserve University, 1988 Research and Professional

  6. In Silico Screening of Carbon Capture Materials | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome In Silico Screening of Carbon Capture Materials

  7. Young scientist discovers magnetic material unnecessary to create spin

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

    current | Argonne National Laboratory Young scientist discovers magnetic material unnecessary to create spin current By Carla Reiter * July 23, 2015 Tweet EmailPrint It doesn't happen often that a young scientist makes a significant and unexpected discovery, but postdoctoral researcher Stephen Wu of the U.S. Department of Energy's Argonne National Laboratory just did exactly that. What he found-that you don't need a magnetic material to create spin current from insulators-has important

  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. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory - Ellen Cerreta Image of Ellen Contact Information Los Alamos National Laboratory Materials Science and Technology Division MST-8, Structure/Property Relations Group Phone: (505) 665-2576 ecerreta@lanl.gov Bio Education Ph.D. (2001), Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania M.S. (1997), Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania B.S. (1996), Aerospace Engineering, University of

  10. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Pascal Bellon image of George Gray Contact Information Professor University of Illinois, Urbana-Champaign Department of Materials Science and Engineering Phone: (217)2675-0284 bellon@uiuc.edu http://www.mse.uiuc.edu/faculty/Bellon.html Bio Education Post-Doctoral Research Associate, Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1993-1994 Ph.D., Materials Science, Université Pierre et Marie Curie, Paris, France, 1989

  11. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Robert S. Averback Contact Information University of Illinois at Urbana-Champaign Department of Materials Science and Engineering Donald W. Hamer Professor and Interim Department Head Phone: (217) 333-4302 averback@illinois.edu Bio Education Postdoctoral fellow in Materials Science, Cornell University, 1973 Ph.D., Physics, Michigan State University, 1966 B.S., Physics, Dickinson College, 1966 Research and Professional Experience Professor of Materials Science and

  12. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos

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

    National Laboratory Traditional structural materials degrade and fail under intense irradiation, but certain nanocomposites contain high volume fractions of "super sink" interfaces that allow these materials to self-heal.Understanding how radiation damage is trapped and removed at such interfaces will help in designing a new class of radiation-tolerant materials that would make future nuclear reactors maximally safe, sustainable, and efficient. This (movie/figure) shows the

  13. Diffusion in porous crystalline materials | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome porous crystalline materials Previous Next List Rajamani Krishna, Chem. Soc. Rev., 2012,41, 3099-3118 DOI: 10.1039/C2CS15284C Graphical abstract: Diffusion in porous crystalline materials Abstract: The design and development of many separation and catalytic process technologies require a proper quantitative description of diffusion of mixtures of guest molecules within porous crystalline materials. This tutorial review

  14. Analysis of NSTX Upgrade OH Magnet and Center Stack

    SciTech Connect (OSTI)

    A. Zolfaghari, P. Titus, J. Chrzanowski, A. Salehzadeh, F. Dahlgren

    2010-11-30

    The new ohmic heating (OH) coil and center stack for the National Spherical Torus Experiment (NSTX) upgrade are required to meet cooling and structural requirements for operation at the enhanced 1 Tesla toroidal field and 2 MA plasma current. The OH coil is designed to be cooled in the time between discharges by water flowing in the center of the coil conductor. We performed resistive heating and thermal hydraulic analyses to optimize coolant channel size to keep the coil temperature below 100 C and meet the required 20 minute cooling time. Coupled electromagnetic, thermal and structural FEA analyses were performed to determine if the OH coil meets the requirements of the structural design criteria. Structural response of the OH coil to its self-field and the field from other coils was analyzed. A model was developed to analyze the thermal and electromagnetic interaction of centerstack components such as the OH coil, TF inner legs and the Bellville washer preload mechanism. Torsional loads from the TF interaction with the OH and poloidal fields are transferred through the TF flag extensions via a torque transfer coupling to the rest of the tokamak structure. A 3D FEA analysis was performed to qualify this design. The results of these analyses, which will be presented in this paper, have led to the design of OH coil and centerstack components that meet the requirements of the NSTX-upgrade structural design criteria.

  15. Center for Materials at Irradiation and Mechanical Extremes:...

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

    and Materials Science, Case Western Reserve University, 1989 Lancaster University, England, 1987 Research and Professional Experience Technical Staff Member, Los Alamos...

  16. Center for Nanophase Materials Sciences (CNMS) - Related ORNL...

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

    In particular, the facilities listed on this page offer a variety of capabilities for materials characterization and computational nanoscience that may enhance the research...

  17. Center for Nanophase Materials Sciences (CNMS) - Imaging Functionality

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

    Capabilitiess SCANNING PROBE MICROSCOPY Advanced SPM: air, liquid, gas, 0-250°C in a controlled cell Ambient Scanning Probe Microscopy Magnetic Force Microscopy Electrical Force Microscopy Kelvin Probe Force Microscopy Conductive Atomic Force Microscopy Heated tip (blueDrive) Atomic Force Microscopy Piezoresponse and Electrochemical Strain Microscopy Band excitation PFM Switching spectroscopy PFM First order reversal curve mapping Time relaxation spectroscopy mapping Microwave Microscopy

  18. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Step-by-step growth of epitaxially aligned polythiophene by surface-confined oligomerization J. A. Lipton-Duffin,1,2 J. A. Miwa,1,2 M. Kondratenko,2,3 F. Cicoira,1,2 B. G. Sumpter,4 V. Meunier,4 D. F. Perepichka,2,3 F. Rosei,1,2 1-INRS-ÉMT, Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, QC J3X 1S2 Canada 2-Center for Self-Assembled Chemical Structures 3-Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montréal, QC, H3A 2K6 CANADA 4-Center for Nanophase

  19. The Materials Preparation Center - Making Rare Earth Metals - Part 2

    ScienceCinema (OSTI)

    Riedemann, Trevor

    2013-03-01

    Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 2 of 4.

  20. The Materials Preparation Center - Making Rare Earth Metals - Part 3

    ScienceCinema (OSTI)

    Riedemann, Trevor

    2013-03-01

    Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 3 of 4.

  1. Center for Nanophase Materials Sciences - Summer Newsletter 2010

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

    were recently purchased with American Recovery and Reinvestment Act funds, including new SEM and TEMSTEM capabilities for soft materials, small-angle x-ray scattering, and in the...

  2. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Achievement: The material of choice for spintronics device today is FeMgOFe tunnel ... by modi?cation of the interface is an important topic in spintronics research. ...

  3. Carbon Dioxide Capture: Prospects for New Materials | Center...

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

    Carbon Dioxide Capture: Prospects for New Materials Previous Next List D. M. D'Alessandro, B. Smit, and J. R. Long, Angew. Chem.-Int. Edit. 49 (35), 6058 (2010) DOI: 10.1002...

  4. The Materials Preparation Center - Making Rare Earth Metals - Part 1

    ScienceCinema (OSTI)

    Riedemann, Trevor

    2013-03-01

    Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 1 of 4.

  5. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    H. Weitering, Nature Materials 7, 539 (2008). The research was sponsored by the National Human Genome Research Institute, National Institutes of Health Grant R01HG002647 (CZ), NSF...

  6. The Materials Preparation Center - Making Rare Earth Metals - Part 4

    ScienceCinema (OSTI)

    Riedemann, Trevor

    2013-03-01

    Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 4 of 4.

  7. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Nathan Mara IMage of Nathan Mar Contact Information Staff Scientist Los Alamos National Laboratory Metallurgy, MS G770 Phone: (505) 667-8665 Fax: (505) 667-5268 namara@lanl.gov Bio Education Ph.D., Materials Science and Eng., University of California-Davis, 2005 B.S., Mechanical Engineering and Materials Science, University of California-Davis, 2000 Research and Professional Experience Technical staff member, Los Alamos National Lab, March 2008 - present Director's

  8. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Yongqiang Wang image of George Gray Contact Information Los Alamos National Laboratory Ion Beam Materials Laboratory, Team Leader Phone: (505) 665-1596 yqwang@lanl.gov Bio Education Ph. D in Nuclear Physics and Technology, Lanzhou University (China), 1992 M.S. in Nuclear Physics and Technology, Lanzhou University (China), 1988 B.S. in Nuclear Physics and Technology, Lanzhou University (China), 1984 Research and Professional Experience Team Leader, Ion Beam Materials

  9. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos

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

    National Laboratory This movie shows our molecular dynamics simulation of a collision cascade near an asymmetric Σ11 tilt grain boundary in copper over a time of 380 ps. The grain boundary is at the center of the system. The top and bottom layers are fixed. The atoms are colored by their energies, and only defects are shown, including those atoms in the grain boundary and fixed surface. A primary knock-on atom (PKA) with 4-keV kinetic energy is initiated 15 angstroms below the grain

  10. Design and Analyisi of a Self-centered Cold Mass Support for the MICE Coupling Magnet

    SciTech Connect (OSTI)

    Wang, Li; Pan, Heng; Wu, Hong; Li, S. Y.; Guo, Xing Long; Zheng, Shi Xian; Green, Michael A.

    2011-05-04

    The Muon Ionization Cooling Experiment (MICE) consists of eighteen superconducting solenoid coils in seven modules, which are magnetically hooked together since there is no iron to shield the coils and the return flux. The RF coupling coil (RFCC) module consists of a superconducting coupling solenoid mounted around four conventional conducting 201.25 MHz closed RF cavities. The coupling coil will produce up to a 2.2 T magnetic field on the centerline to keep the beam within the RF cavities. The peak magnetic force on the coupling magnet from other magnets in MICE is up to 500 kN in longitudinal direction, which will be transferred to the base of the RF coupling coil (RFCC) module through a cold mass support system. A self-centered double-band cold mass support system with intermediate thermal interruption is applied to the coupling magnet, and the design is introduced in detail in this paper. The thermal and structural analysis on the cold mass support assembly has been carried out using ANSYS. The present design of the cold mass support can satisfy with the stringent requirements for the magnet center and axis azimuthal angle at 4.2 K and fully charged.

  11. Biomimicry in metal-organic materials | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Biomimicry in metal-organic materials Previous Next List Muwei Zhang, Zhi-Yuan Gu, Mathieu Bosch, Zachary Perry, Hong-Cai Zhou, Coordination Chemistry Reviews, (2014) DOI: 10.1016/j.ccr.2014.05.031 1-s2.0-S0010854514001672-fx1 Abstract: Nature has evolved a great number of biological molecules which serve as excellent constructional or functional units for metal-organic materials (MOMs). Even though the study of biomimetic

  12. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Designing New Materials with Nanostructures as Building Blocks Vincent Meunier and Sefa Dag, CNMS Jose Manuel Romo Herrera, Mauricio Terrones and Humberto Terrones, Instituto Potosino de Investigacion Cientifica y Tecnologica, San Luis Potosi, Mexico Novel and robust networks, tailored from nanostructures as building blocks, are the foundations for constructing nano- and microdevices. However, assembling nanostructures into ordered micronetworks remains a significant challenge in nanotechnology.

  13. Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials

    DOE Patents [OSTI]

    Kraus, Robert H.; Matlashov, Andrei N.; Espy, Michelle A.; Volegov, Petr L.

    2010-03-30

    An ultra-low magnetic field NMR system can non-invasively examine containers. Database matching techniques can then identify hazardous materials within the containers. Ultra-low field NMR systems are ideal for this purpose because they do not require large powerful magnets and because they can examine materials enclosed in conductive shells such as lead shells. The NMR examination technique can be combined with ultra-low field NMR imaging, where an NMR image is obtained and analyzed to identify target volumes. Spatial sensitivity encoding can also be used to identify target volumes. After the target volumes are identified the NMR measurement technique can be used to identify their contents.

  14. Summary 2012 Internship Projects | Center for Energy Efficient Materials

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

    2 Internship Projects Name Mentor Advisor Major Project Title Benjamin Abrams Ferenc Somodi Dan Morse Physics Preparation of Silicon Containing Anode Materials for Lithium-Ion Batteries Carl Bycraft Emmett Perl John Bowers Electrical Engineering Quantum Efficiency Measurement for Multijunction Photovoltaics Benjamin Campo Nathan Pffaf Steve DenBaars Electrical Engineering Temperature Evolution of Light Emitting Diode Efficiency Rachel Harris Chris Liman Michael Chabynic Investigating Degradation

  15. Center for Nanophase Materials Sciences (CNMS) - CNMS Research

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

    CNMS RESEARCH Synthesis and Directed Growth of Single-Crystal TCNQ-Cu Organic Nanowires K. Xiao, J. Tao, and Z. Liu (CNMS Postdocs); I. N. Ivanov, A.A. Puretzky, Z. Pan, and D.B. Geohegan (CNMS Staff); and S. J. Pennycook (ORNL) Achievement Few synthesis experiments have been reported for nanowires of organic semiconductors, despite the proposed use of organic thin-film materials in energy-related optoelectronic devices such as solid state lighting and photovoltaic cells. Although nanostructures

  16. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Spin injection in conjugated polymer for enhanced solid-state lighting efficiency Bin Hu and Yue Wu (CNMS users), University of Tennessee; An-Ping Li and Jian Shen (CNMS Staff), and Jane Howe (ORNL) Achievement In this work, we have explored the introduction of spin polarization in p-conjugated polymer MEHPPV [Poly(2-methoxy-5-(2'-methylhexyloxy)-1,4 phenylenevinylene] by using spin injection from ferromagnetic materials. The approach uses thermal deposition to prepare Co nanodots on polymer

  17. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Vertically Aligned Carbon Nanofibers Arrays Record Electrophysiological Signals Zhe Yu and Barclay Morrison III, (Department of Biomedical Engineering, Columbia University), T. E. McKnight, M. N. Ericson, (ESTD, ORNL) A. V. Melechko, and M. L. Simpson (CNMS, ORNL) Achievement The controlled synthesis and directed assembly of nanoscale materials is a key requirement to create functional interfaces between synthetic and biological systems. Along these lines, recent advances in the controlled

  18. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Alfredo Caro Image of Alfredo Caro Contact Information MST-8, MS G755 Los Alamos National Laboratory 505-665-2083 Bio Alfredo Caro joined Los Alamos National Laboratory in March 2010, coming from Lawrence Livermore National Lab, where he worked for seven years in fusion and fission computational materials science. While completing his Ph.D. at the Swiss Federal Institute of Technology, Caro's research covered experimental work on radiation damage; later, during his years at

  19. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Blas Uberuaga image of blas urberuaga Contact Information Technical Staff Member Los Alamos National Laboratory Materials Science and Technology Division Phone: (505) 667-9105 blas@lanl.gov Bio Education: Ph.D. in Physics, University of Washington, 2000 M.S. in Physics, University of Washington, 1996 B.A. in Physics, University of Idaho, 1994 Research and Professional Experience: Technical Staff Member, Los Alamos National Laboratory, 2004-present Postdoctoral Researcher,

  20. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory George T. (Rusty) Gray III image of George Gray Contact Information Laboratory Fellow Los Alamos National Laboratory Dynamic Materials Properties, Testing, and Modeling Los Alamos, NM 87545 Phone: (505) 667-5452 rusty@lanl.gov Bio Education Ph.D. in Metallurgical Engineering, Carnegie-Mellon University, 1981 M.S. in Metallurgical Engineering, South Dakota School of Mines and Technology, 1977 B.S. in Metallurgical Engineering, South Dakota School of Mines and Technology,

  1. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Irene J. Beyerlein image of Irene Beyerlain Contact Information Los Alamos National Laboratory Theoretical Division Fluid Dynamics and Solid Mechanics Phone: (505) 665-2231 irene@lanl.gov Bio Education Ph.D., Theoretical and Applied Mechanics, Cornell University, 1997; Minors in Materials Science and Probability and Statistics B.S., Mechanical Engineering, Clemson University, 1993 Research and Professional Experience Technical Staff Member, Los Alamos National Laboratory,

  2. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory J. Demkowicz image of michael demkowicz Contact Information MIT Department of Materials Science and Engineering Phone: (617)324-6563 demkowicz@mit.edu Bio Education Ph.D., Mechanical Engineering, Massachusetts Institute of Technology, June 2005; Minor in Finance, MIT Sloan School of Business, June 2005 B.S., Physics, University of Texas-Austin, August 2000 B.S., Aerospace Engineering and Engineering Mechanics, University of Texas-Austin, August 2000 B.A., Plan II Humanities

  3. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Quanxi Jia image of George Gray Contact Information Laboratory Fellow Los Alamos National Laboratory Materials Physics and Applications Division Phone: (505) 667-2716 qxjia@lanl.gov Bio Education Ph.D., Electrical & Computer Engineering from SUNY at Buffalo, NY, 1991 M.S., Electronic Engineering, Jiaotong University, Xian, China, 1985 B.S., Electronic Engineering, Jiaotong University, Xian, China, 1982 Research and Professional Experience Laboratory Fellow, Los Alamos

  4. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Timothy Germann german Contact Information Los Alamos National Laboratory Theoretical Division Physics and Chemistry of Materials Group Phone: (505) 665-9772 tcg@lanl.gov Bio Education Ph.D., Chemical Physics, Harvard University, 1995 B.S., Computer Science, University of Illinois, Urbana-Champaign, 1991 B.S., Chemistry, University of Illinois, Urbana-Champaign, 1991 Research and Professional Experience Technical Staff Member, Los Alamos National Laboratory, April

  5. Center for Nanophase Materials Sciences (CNMS) - Functional Polymer and

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

    Hybrid Architectures (FPHA) FUNCTIONAL POLYMER AND HYBRID ARCHITECTURES (FPHA) The overarching goal of the Functional Polymer and Hybrid Architectures (FPHA) theme is to understand, design, and manipulate the multiscale self-assembly of macromolecular and hybrid materials to tailor electronic transport and response. The emphasis is on probing the mechanisms of self-assembly that are essential for the development of functional hybrid architectures of relevance to energy technologies, such as

  6. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Controlling the Edge Morphology in Graphene Layers using Electron Irradiation: From Sharp Atomic Edges to Coalesced Layers Forming Loops Eduardo Cruz-Silva,1 Andrés R. Botello-Méndez,2 Zachary Barnett,1 X. Jia,3 M.S. Dresselhaus,4 Humberto Terrones,2 Mauricio Terrones,5 Bobby G. Sumpter,1 Vincent Meunier1 1- Oak Ridge National Laboratory, Oak Ridge, TN 2-Université Catholique de Louvain, Institute of Condensed Matter and Nanosciences, Belgium 3-Department of Materials Science and

  7. Center for Nanophase Materials Sciences (CNMS) - CNMS User Research

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

    Phonon softening and metallization of a narrow-gap semiconductor by thermal disorder O. Delaire,1 K. Marty,1 M. B. Stone,1 P. R. C. Kent,1 M. S. Lucas,2 D. L. Abernathy,1 D. Mandrus,1 B. C. Sales1 1- Oak Ridge National Laboratory, Oak Ridge, TN 37831 2-Air Force Research Laboratory, Wright-Patterson AFB, OH 45433 Achievement We have shown how, in some materials, there can be a surprisingly strong coupling between certain features of the electronic structure and the way the atoms in a solid

  8. Center for Materials at Irradiation and Mechanical Extremes: Los National

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

    Alamos Laboratory Steve Valone IMage of Steve Valone Contact Information MST-8, MS G755 Los Alamos National Laboratory 505-667-2067 Bio Steve Valone received his Ph.D. in theoretical chemistry from the University of North Carolina in 1980. In 1981, he became a Director's-funded postdoc at Los Alamos National Laboratory in the physical chemistry group; in 1984, he joined the technical staff in the Materials Science & Technology Division, where he worked on a wide variety of modeling

  9. Methane storage in advanced porous materials | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Methane storage in advanced porous materials Previous Next List Trevor A. Makal, Jian-Rong Li, Weigang Lu and Hong-Cai Zhou, Chem. Soc. Rev., 2012,41, 7761-7779 DOI: 10.1039/C2CS35251F Abstract: The need for alternative fuels is greater now than ever before. With considerable sources available and low pollution factor, methane is a natural choice as petroleum replacement in cars and other mobile applications. However,

  10. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos Lab

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

    Center for Materials at Irradiation and Mechanical Extremes A BES Energy Frontier Research Center Home Teams Partners Others Summer School G. R. Odette Professional Preparation Department of Mechanical Engineering and Department of Materials University of California Santa Barbara, Santa Barbara, CA 93016 odette@engineering.ucsb.edu , 805-893-3525 1965 Rensselaer Polytechnic Institute, Engineering Science, B.S.; 1968 Massachusetts Institute of Technology, Nuclear Engineering, M.S; 1971

  11. Dynamic high pressure process for fabricating superconducting and permanent magnetic materials

    DOE Patents [OSTI]

    Nellis, William J. (Berkeley, CA); Geballe, Theodore H. (Woodside, CA); Maple, M. Brian (Del Mar, CA)

    1988-01-01

    Shock wave formation of thin layers of materials with improved superconducting and permanent magnetic properties and improved microstructures.

  12. Magnetic Resonance Facility (Fact Sheet), National Bioenergy Center Laboratory Capabilities (NBCLC)

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

    Resonance Facility Liquid and solid-state analysis capability for a variety of biomass, photovoltaic, and materials characterization applications across NREL NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. NREL scientists analyze solid and liquid samples on three nuclear magnetic resonance (NMR) spectrometers. NREL's state-of-the-art Magnetic Resonance Facility provides: *

  13. Materials, Strands, and Cables for Superconducting Accelerator Magnets. Final Report

    SciTech Connect (OSTI)

    Sumption, Mike D.; Collings, Edward W.

    2014-09-19

    This report focuses on Materials, Strands and Cables for High Energy Physics Particle accelerators. In the materials area, work has included studies of basic reactions, diffusion, transformations, and phase assemblage of Nb3Sn. These materials science aspects have been married to results, in the form of flux pinning, Bc2, Birr, and transport Jc, with an emphasis on obtaining the needed Jc for HEP needs. Attention has also been paid to the intermediate-temperature superconductor, magnesium diboride emphasis being placed on (i) irreversibility field enhancement, (ii) critical current density and flux pinning, and (iii) connectivity. We also report on studies of Bi-2212. The second area of the program has been in the area of Strands in which, aside from the materials aspect of the conductor, its physical properties and their influence on performance have been studied. Much of this work has been in the area of magnetization estimation and flux jump calculation and control. One of the areas of this work was strand instabilities in high-performance Nb3Sn conductors due to combined fields and currents. Additionally, we investigated quench and thermal propagation in YBCO coated conductors at low temperatures and high fields. The last section, Cables, focussed on interstrand contact resistance, ICR, it origins, control, and implications. Following on from earlier work in NbTi, the present work in Nb3Sn has aimed to make ICR intermediate between the two extremes of too little contact (no current sharing) and too much (large and unacceptable magnetization and associated beam de-focussing). Interstrand contact and current sharing measurements are being made on YBCO based Roebel cables using transport current methods. Finally, quench was investigated for YBCO cables and the magnets wound from them, presently with a focus on 50 T solenoids for muon collider applications.

  14. Development of Variational Guiding Center Algorithms for Parallel Calculations in Experimental Magnetic Equilibria

    SciTech Connect (OSTI)

    Ellison, C. Leland; Finn, J. M.; Qin, H.; Tang, William M.

    2014-10-01

    Structure-preserving algorithms obtained via discrete variational principles exhibit strong promise for the calculation of guiding center test particle trajectories. The non-canonical Hamiltonian structure of the guiding center equations forms a novel and challenging context for geometric integration. To demonstrate the practical relevance of these methods, a prototypical variational midpoint algorithm is applied to an experimental magnetic equilibrium. The stability characteristics, conservation properties, and implementation requirements associated with the variational algorithms are addressed. Furthermore, computational run time is reduced for large numbers of particles by parallelizing the calculation on GPU hardware.

  15. Materials Down Select Decisions Made Within the Department of Energy Hydrogen Sorption Center of Excellence

    SciTech Connect (OSTI)

    Simpson, Lin

    2009-11-30

    Technical report describing DOE's Hydrogen Sorption Center of Excellence investigation into various adsorbent and chemisorption materials and progress towards meeting DOE's hydrogen storage targets. The report presents a review of the material status as related to DOE hydrogen storage targets and explains the basis for the down select decisions.

  16. SciDAC Outreach Center Participates in "Materials for Energy

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

    Applications" Workshop SciDAC Outreach Center Participates in "Materials for Energy Applications" Workshop SciDAC Outreach Center Participates in "Materials for Energy Applications" Workshop February 1, 2012 David Skinner From Jan. 30 to Feb. 1 Berkeley Lab hosted an invitation-only workshop on Materials for Energy Applications, which was jointly sponsored by all 17 DOE national laboratories. This three-day conference-the first of a planned series-was held to

  17. Magnetic preferential orientation of metal oxide superconducting materials

    DOE Patents [OSTI]

    Capone, D.W.; Dunlap, B.D.; Veal, B.W.

    1990-07-17

    A superconductor comprised of a polycrystalline metal oxide such as YBa[sub 2]Cu[sub 3]O[sub 7[minus]X] (where 0 < X < 0.5) exhibits superconducting properties and is capable of conducting very large current densities. By aligning the two-dimensional Cu-O layers which carry the current in the superconducting state in the a- and b-directions, i.e., within the basal plane, a high degree of crystalline axes alignment is provided between adjacent grains permitting the conduction of high current densities. The highly anisotropic diamagnetic susceptibility of the polycrystalline metal oxide material permits the use of an applied magnetic field to orient the individual crystals when in the superconducting state to substantially increase current transport between adjacent grains. In another embodiment, the anisotropic paramagnetic susceptibility of rare-earth ions substituted into the oxide material is made use of as an applied magnetic field orients the particles in a preferential direction. This latter operation can be performed with the material in the normal (non-superconducting) state. 4 figs.

  18. Magnetic preferential orientation of metal oxide superconducting materials

    DOE Patents [OSTI]

    Capone, Donald W. (Bolingbrook, IL); Dunlap, Bobby D. (Bolingbrook, IL); Veal, Boyd W. (Downers Grove, IL)

    1990-01-01

    A superconductor comprised of a polycrystalline metal oxide such as YBa.sub.2 Cu.sub.3 O.sub.7-X (where 0material permits the use of an applied magnetic field to orient the individual crystals when in the superconducting state to substantially increase current transport between adjacent grains. In another embodiment, the anisotropic paramagnetic susceptibility of rare-earth ions substituted into the oxide material is made use of as an applied magnetic field orients the particles in a preferential direction. This latter operation can be performed with the material in the normal (non-superconducting) state.

  19. Materials Dow Select Decisions Made Within DOEs Chemical Hydrogen Storage Center of Excellence

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

    Down Select Report of Chemical Hydrogen Storage Materials, Catalysts, and Spent Fuel Regeneration Processes Chemical Hydrogen Storage Center of Excellence FY2008 Second Quarter Milestone Report Submitted by: The Chemical Hydrogen Storage Center of Excellence Coordinating Council Authors: Kevin C. Ott, Los Alamos National Laboratory Sue Linehan, Rohm and Haas Company Frank Lipiecki, Rohm and Haas Company Christopher L. Aardahl, Pacific Northwest National Laboratory May 2008 Acknowledgements The

  20. Héctor D. Abruña > Director, Energy Materials Center at Cornell

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

    Emile M. Chamot Professor Chemistry and Chemical Biology > Faculty Directory > The Energy Materials Center at Cornell Héctor D. Abruña Director, Energy Materials Center at Cornell Emile M. Chamot Professor Chemistry and Chemical Biology Research Group Webpage hda1@cornell.edu Professor Abruña, Emile M. Chamot Professor of Chemistry, completed his graduate studies with Royce W. Murray and Thomas J. Meyer at the University of North Carolina at Chapel Hill in 1980 and was a

  1. Use of magnetic carbon composites from renewable resource materials for oil spill clean up and recovery

    DOE Patents [OSTI]

    Viswanathan, Tito

    2015-10-27

    A method of separating a liquid hydrocarbon material from a body of water, includes: (a) mixing magnetic carbon-metal nanocomposites with a liquid hydrocarbon material dispersed in a body of water to allow the magnetic carbon-metal nanocomposites each to be adhered by the liquid hydrocarbon material to form a mixture; (b) applying a magnetic force to the mixture to attract the magnetic carbon-metal nanocomposites each adhered by the liquid hydrocarbon material; and (c) removing the body of water from the magnetic carbon-metal nanocomposites each adhered by the liquid hydrocarbon material while maintaining the applied magnetic force. The magnetic carbon-metal nanocomposites is formed by subjecting one or more metal lignosulfonates or metal salts to microwave radiation, in presence of lignin/derivatives either in presence of alkali or a microwave absorbing material, for a period of time effective to allow the carbon-metal nanocomposites to be formed.

  2. Method and apparatus for separating materials magnetically. [Patent application; iron pyrite from coal

    DOE Patents [OSTI]

    Hise, E.C. Jr.; Holman, A.S.; Friedlaender, F.J.

    1980-11-06

    Magnetic and nonmagnetic materials are separated by passing stream thereof past coaxial current-carrying coils which produce a magnetic field wherein intensity varies sharply with distance radially of the axis of the coils.

  3. Upgrading the Center for Lightweighting Automotive Materials and Processing - a GATE Center of Excellence at the University of Michigan-Dearborn

    SciTech Connect (OSTI)

    Mallick, P. K.

    2012-08-30

    The Center for Lightweighting Materials and Processing (CLAMP) was established in September 1998 with a grant from the Department of Energy’s Graduate Automotive Technology Education (GATE) program. The center received the second round of GATE grant in 2005 under the title “Upgrading the Center for Lightweighting Automotive Materials and Processing”. Using the two grants, the Center has successfully created 10 graduate level courses on lightweight automotive materials, integrated them into master’s and PhD programs in Automotive Systems Engineering, and offered them regularly to the graduate students in the program. In addition, the Center has created a web-based lightweight automotive materials database, conducted research on lightweight automotive materials and organized seminars/symposia on lightweight automotive materials for both academia and industry. The faculty involved with the Center has conducted research on a variety of topics related to design, testing, characterization and processing of lightweight materials for automotive applications and have received numerous research grants from automotive companies and government agencies to support their research. The materials considered included advanced steels, light alloys (aluminum, magnesium and titanium) and fiber reinforced polymer composites. In some of these research projects, CLAMP faculty have collaborated with industry partners and students have used the research facilities at industry locations. The specific objectives of the project during the current funding period (2005 – 2012) were as follows: (1) develop new graduate courses and incorporate them in the automotive systems engineering curriculum (2) improve and update two existing courses on automotive materials and processing (3) upgrade the laboratory facilities used by graduate students to conduct research (4) expand the Lightweight Automotive Materials Database to include additional materials, design case studies and make it more accessible to outside users (5) provide support to graduate students for conducting research on lightweight automotive materials and structures (6) provide industry/university interaction through a graduate certificate program on automotive materials and technology idea exchange through focused seminars and symposia on automotive materials.

  4. Center for Coal-Derived Low Energy Materials for Sustainable Construction

    SciTech Connect (OSTI)

    Jewell, Robert; Robl, Tom; Rathbone, Robert

    2012-06-30

    The overarching goal of this project was to create a sustained center to support the continued development of new products and industries that manufacture construction materials from coal combustion by-products or CCB’s (e.g., cements, grouts, wallboard, masonry block, fillers, roofing materials, etc). Specific objectives includes the development of a research kiln and associated system and the formulation and production of high performance low-energy, low-CO2 emitting calcium sulfoaluminate (CAS) cement that utilize coal combustion byproducts as raw materials.

  5. Magnetic mesoporous material for the sequestration of algae

    DOE Patents [OSTI]

    Trewyn, Brian G.; Kandel, Kapil; Slowing, Igor Ivan; Lee, Show-Ling

    2014-09-09

    The present invention provides a magnetic mesoporous nanoparticle that includes a mesoporous silicate nanoparticle and iron oxide. The present invention also provides a method of using magnetic mesoporous nanoparticles to sequester microorganisms from a media.

  6. Conceptual design report, Hazardous Materials Management and Emergency Response (HAMMER) Training Center

    SciTech Connect (OSTI)

    Kelly, K.E.

    1994-11-09

    For the next 30 years, the main activities at the US Department of Energy (DOE) Hanford Site will involve the management, handling, and cleanup of toxic substances. If the DOE is to meet its high standards of safety, the thousands of workers involved in these activities will need systematic training appropriate to their tasks and the risks associated with these tasks. Furthermore, emergency response for DOE shipments is the primary responsibility of state, tribal, and local governments. A collaborative training initiative with the DOE will strengthen emergency response at the Hanford Site and within the regional communities. Local and international labor has joined the Hazardous Materials Management and Emergency Response (HAMMER) partnership, and will share in the HAMMER Training Center core programs and facilities using their own specialized trainers and training programs. The HAMMER Training Center will provide a centralized regional site dedicated to the training of hazardous material, emergency response, and fire fighting personnel.

  7. Center for Nanophase Materials Sciences (CNMS) - Archived CNMS in the News

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

    ARCHIVED CNMS IN THE NEWS Peter Cummings to Receive Touloukian Award from the American Society of Mechanical Engineers Peter Cummings, Principal Scientist at the Center for Nanophase Materials Sciences and John R. Hall Professor at Vanderbilt University, will receive the 2012 Yeram S. Touloukian Award from the American Society of Mechanical Engineers (ASME). The award, consisting of a bronze medal, certificate and travel grant, is awarded once every three years to recognize outstanding technical

  8. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos Lab

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

    Employment Opportunities The Center employs qualified postdoctoral researchers at LANL on all CMIME research teams. Background in mechanical behavior and/or radiation effects in structural metals and/or ceramics is needed, with expertise in interfaces and defects in materials. In experimental research, skills in high-resolution TEM (preferably aberration-corrected TEM) are required. In theoretical research, skills in atomistic modeling are required. US citizenship is not required. Want more

  9. Subtask 1: Molecules, Materials, and Systems for Solar Fuels | ANSER Center

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

    | Argonne-Northwestern National Laboratory 1: Molecules, Materials, and Systems for Solar Fuels Home > Research > Subtask 1 The above figure depicts an iridium catalyst used for water splitting. The above figure depicts an iridium catalyst used for water splitting. The greatest challenge facing the development of solar fuels is efficient fuel production at acceptable rates and driving forces. The ANSER Center is confronting this challenge by taking a hierarchical approach to designing,

  10. Project plan, Hazardous Materials Management and Emergency Response Training Center: Project 95L-EWT-100

    SciTech Connect (OSTI)

    Borgeson, M.E.

    1994-11-09

    The Hazardous Materials Management and Emergency Response (HAMMER) Training Center will provide for classroom lectures and hands-on practical training in realistic situations for workers and emergency responders who are tasked with handling and cleanup of toxic substances. The primary objective of the HAMMER project is to provide hands-on training and classroom facilities for hazardous material workers and emergency responders. This project will also contribute towards complying with the planning and training provisions of recent legislation. In March 1989 Title 29 Code of Federal Regulations Occupational Safety and Health Administration 1910 Rules and National Fire Protection Association Standard 472 defined professional requirements for responders to hazardous materials incidents. Two general types of training are addressed for hazardous materials: training for hazardous waste site workers and managers, and training for emergency response organizations.

  11. High frequency transformers and high Q factor inductors formed using epoxy-based magnetic polymer materials

    DOE Patents [OSTI]

    Sanchez, Robert O. (Los Lunas, NM); Gunewardena, Shelton (Walnut, CA); Masi, James V. (Cape Elizabeth, ME)

    2007-11-27

    An electrical component in the form of an inductor or transformer is disclosed which includes one or more coils and a magnetic polymer material located near the coils or supporting the coils to provide an electromagnetic interaction therewith. The magnetic polymer material is preferably a cured magnetic epoxy which includes a mercaptan derivative having a ferromagnetic atom chemically bonded therein. The ferromagnetic atom can be either a transition metal or rare-earth atom.

  12. High frequency transformers and high Q factor inductors formed using epoxy-based magnetic polymer materials

    DOE Patents [OSTI]

    Sanchez, Robert O.; Gunewardena, Shelton; Masi, James V.

    2005-03-29

    An electrical component in the form of an inductor or transformer is disclosed which includes one or more coils and a magnetic polymer material located near the coils or supporting the coils to provide an electromagnetic interaction therewith. The magnetic polymer material is preferably a cured magnetic epoxy which includes a mercaptan derivative having a ferromagnetic atom chemically bonded therein. The ferromagnetic atom can be either a transition metal or rare-earth atom.

  13. Magnetic Systems Mimic Granular Materials | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Magnetic Systems Mimic Granular Materials Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: Email Us More Information » 06.01.13 Magnetic Systems Mimic Granular Materials Magnetic

  14. Center for Fundamental and Applied Research in Nanostructured and Lightweight Materials. Final Technical Summary

    SciTech Connect (OSTI)

    Mullins, Michael; Rogers, Tony; King, Julia; Keith, Jason; Cornilsen, Bahne; Allen, Jeffrey; Gilbert, Ryan; Holles, Joseph

    2010-09-28

    The core projects for this DOE-sponsored Center at Michigan Tech have focused on several of the materials problems identified by the NAS. These include: new electrode materials, enhanced PEM materials, lighter and more effective bipolar plates, and improvement of the carbon used as a current carrier. This project involved fundamental and applied research in the development and testing of lightweight and nanostructured materials to be used in fuel cell applications and for chemical synthesis. The advent of new classes of materials engineered at the nanometer level can produce materials that are lightweight and have unique physical and chemical properties. The grant was used to obtain and improve the equipment infrastructure to support this research and also served to fund seven research projects. These included: 1. Development of lightweight, thermally conductive bipolar plates for improved thermal management in fuel cells; 2. Exploration of pseudomorphic nanoscale overlayer bimetallic catalysts for fuel cells; 3. Development of hybrid inorganic/organic polymer nanocomposites with improved ionic and electronic properties; 4. Development of oriented polymeric materials for membrane applications; 5. Preparation of a graphitic carbon foam current collectors; 6. The development of lightweight carbon electrodes using graphitic carbon foams for battery and fuel cell applications; and 7. Movement of water in fuel cell electrodes.

  15. GATE Center of Excellence at UAB in Lightweight Materials for Automotive Applications

    SciTech Connect (OSTI)

    2011-07-31

    This report summarizes the accomplishments of the UAB GATE Center of Excellence in Lightweight Materials for Automotive Applications. The first Phase of the UAB DOE GATE center spanned the period 2005-2011. The UAB GATE goals coordinated with the overall goals of DOE's FreedomCAR and Vehicles Technologies initiative and DOE GATE program. The FCVT goals are: (1) Development and validation of advanced materials and manufacturing technologies to significantly reduce automotive vehicle body and chassis weight without compromising other attributes such as safety, performance, recyclability, and cost; (2) To provide a new generation of engineers and scientists with knowledge and skills in advanced automotive technologies. The UAB GATE focused on both the FCVT and GATE goals in the following manner: (1) Train and produce graduates in lightweight automotive materials technologies; (2) Structure the engineering curricula to produce specialists in the automotive area; (3) Leverage automotive related industry in the State of Alabama; (4) Expose minority students to advanced technologies early in their career; (5) Develop innovative virtual classroom capabilities tied to real manufacturing operations; and (6) Integrate synergistic, multi-departmental activities to produce new product and manufacturing technologies for more damage tolerant, cost-effective, and lighter automotive structures.

  16. Center for Nanophase Materials Sciences (CNMS) - Archived CNMS in the News

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

    ARCHIVED CNMS IN THE NEWS Sergei V. Kalinin Wins ACerS Robert L. Coble Award for Young Scholars Sergei V. Kalinin, who is a member of the Imaging Functionality Group in the Center for Nanophase Materials Sciences Division, will be honored at the 111th Annual Meeting of The American Ceramic Society (ACerS), October 26, 2009, in Pittsburgh, Pennsylvania, with the Robert L. Coble Award for Young Scholars. Dr. Kalinin is cited for "seminal contributions in understanding ferroelectric and

  17. Staff > Faculty Directory > The Energy Materials Center at Cornell

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

    Faculty Directory List Image Héctor D. Abruña Director, Energy Materials Center at Cornell Emile M. Chamot Professor Chemistry and Chemical Biology hda1@cornell.edu List Image Lynden Archer Marjorie L. Hart Chair Chemical and Biomolecular Engineering laa25@cornell.edu List Image Tomás Arias Professor Department of Physics taa2@cornell.edu List Image Joel Brock Research Thrust Leader - Complex Oxides Professor Applied and Engineering Physics jdb20@cornell.edu List Image Geoff Coates Tisch

  18. Project T100 -- Hazardous Materials Management and Emergency Response Training Center (HAMMER)

    SciTech Connect (OSTI)

    Norton, C.E.

    1994-11-09

    The scope of this Quality Assurance Program Plan (QAPP) is to provide a system of Quality Assurance reviews and verifications on the design and construction of the Hazardous Materials Management and Emergency Response (HAMMER) Training Center, project 95L-EWT-100 at Hanford. The reviews and verifications will be on activities associated with design, procurement, and construction of the HAMMER project which includes, but is not limited to earthwork, placement of concrete, laying of rail, drilling of wells, water and sewer line fabrication and installation, communications systems, fire protection/detection systems, line tie-ins, building and mock-up (prop) construction, electrical, instrumentation, pump and valves and special coatings.

  19. Final Scientific/Technical Report for DOE/EERE project Advanced Magnetic Refrigerant Materials

    SciTech Connect (OSTI)

    Johnson, Francis

    2014-06-30

    A team led by GE Global Research developed new magnetic refrigerant materials needed to enhance the commercialization potential of residential appliances such as refrigerators and air conditioners based on the magnetocaloric effect (a nonvapor compression cooling cycle). The new magnetic refrigerant materials have potentially better performance at lower cost than existing materials, increasing technology readiness level. The performance target of the new magnetocaloric material was to reduce the magnetic field needed to achieve 4 °C adiabatic temperature change from 1.5 Tesla to 0.75 Tesla. Such a reduction in field minimizes the cost of the magnet assembly needed for a magnetic refrigerator. Such a reduction in magnet assembly cost is crucial to achieving commercialization of magnetic refrigerator technology. This project was organized as an iterative alloy development effort with a parallel material modeling task being performed at George Washington University. Four families of novel magnetocaloric alloys were identified, screened, and assessed for their performance potential in a magnetic refrigeration cycle. Compositions from three of the alloy families were manufactured into regenerator components. At the beginning of the project a previously studied magnetocaloric alloy was selected for manufacturing into the first regenerator component. Each of the regenerators was tested in magnetic refrigerator prototypes at a subcontractor at at GE Appliances. The property targets for operating temperature range, operating temperature control, magnetic field sensitivity, and corrosion resistance were met. The targets for adiabatic temperature change and thermal hysteresis were not met. The high thermal hysteresis also prevented the regenerator components from displaying measurable cooling power when tested in prototype magnetic refrigerators. Magnetic refrigerant alloy compositions that were predicted to have low hysteresis were not attainable with conventional alloy processing methods. Preliminary experiments with rapid solidification methods showed a path towards attaining low hysteresis compositions should this alloy development effort be continued.

  20. Use of magnetic carbon composites from renewable resource materials for oil spill clean up and recovery

    DOE Patents [OSTI]

    Viswanathan, Tito

    2014-02-11

    A method for separating a liquid hydrocarbon material from a body of water. In one embodiment, the method includes the steps of mixing a plurality of magnetic carbon-metal nanocomposites with a liquid hydrocarbon material dispersed in a body of water to allow the plurality of magnetic carbon-metal nanocomposites each to be adhered by an amount of the liquid hydrocarbon material to form a mixture, applying a magnetic force to the mixture to attract the plurality of magnetic carbon-metal nanocomposites each adhered by an amount of the liquid hydrocarbon material, and removing said plurality of magnetic carbon-metal nanocomposites each adhered by an amount of the liquid hydrocarbon material from said body of water while maintaining the applied magnetic force, wherein the plurality of magnetic carbon-metal nanocomposites is formed by subjecting one or more metal lignosulfonates or metal salts to microwave radiation, in presence of lignin/derivatives either in presence of alkali or a microwave absorbing material.

  1. Final Report: Stability and Novel Properties of Magnetic Materials...

    Office of Scientific and Technical Information (OSTI)

    Our primary focus is materials with very high, negative, ... We have developed a new synthesis method for Fe3O4 thin films ... Language: English Subject: 36 MATERIALS SCIENCE Word Cloud ...

  2. Materials Down-selection Decisions Made within the DOE Metal Hydride Center of Excellence (MHCoE) - September-October 2007

    Fuel Cell Technologies Publication and Product Library (EERE)

    Reports on which hydrogen storage materials offer potential for further research as decided by DOE's Metal Hydride Center of Excellence.

  3. Materials Down-selection Decisions Made within the DOE Metal Hydride Center of Excellence (MHCoE) - September-October 2007

    SciTech Connect (OSTI)

    Klebanoff, Lennie

    2007-09-01

    Reports on which hydrogen storage materials offer potential for further research as decided by DOE's Metal Hydride Center of Excellence.

  4. Exploring nanoscale magnetism in advanced materials with polarized...

    Office of Scientific and Technical Information (OSTI)

    Number: DE-AC02-05CH11231 Resource Type: Journal Article Resource Relation: Journal Name: Materials Science and Engineering. R, Reports; Journal Volume: 72; Journal Issue: 5;...

  5. The proposed fixation of sludge in cement at the Feed Materials Production Center

    SciTech Connect (OSTI)

    Gimpel, R.F.

    1990-12-01

    The Feed Materials Production Center (FMPC), located near Cincinnati, Ohio, is a government-owned facility. Westinghouse Materials Company of Ohio (WMCO) is the prime contractor to the United States Department of Energy (DOE) at the FMPC. DOE has entered into a Consent Agreement with the United States Environmental Protection Agency (US EPA) to remediate the FMPC site. A project known as the Environmental Remedial Action (ERA) Project was created to accomplish the task of remediating the site. The majority of the estimated $2-billion ERA Project was broken into five smaller manageable subtasks called operable units.'' Each operable unit is handled as a project with its own project manager/engineer. Due to the project's complexity and stringent completion dates, DOE and WMCO have devised a project management philosophy to ensure the successful completion of the ERA Project. This paper will discuss the ERA project and the development needs to accomplish this project. In particular, development of processes for the treatment of waste sludges for Operable Units 1 and 4 will be discussed. Operable Units 2 sludges will be treated in a similar fashion to Operable Unit 1 if it is determined these sludges need treatment. 4 refs., 5 figs., 9 tabs.

  6. Dynamic high pressure process for fabricating superconducting and permanent magnetic materials

    DOE Patents [OSTI]

    Nellis, William J. (Berkeley, CA); Geballe, Theodore H. (Woodside, CA); Maple, M. Brian (Del Mar, CA)

    1990-01-01

    Shock wave formation of thin layers of materials with improved superconducting and permanent magnetic properties and improved microstructures. The material fabrication system includes a sandwiched structure including a powder material placed between two solid members to enable explosive shock consolidation. The two solid members are precooled to about 80.degree.-100.degree. K. to reduce the residual temperatures attained as a result of the shock wave treatment, and thereby increase the quench rate of the consolidated powder.

  7. Dynamic high pressure process for fabricating superconducting and permanent magnetic materials

    DOE Patents [OSTI]

    Nellis, W.J.; Geballe, T.H.; Maple, M.B.

    1990-03-13

    Shock wave formation of thin layers of materials with improved superconducting and permanent magnetic properties and improved microstructures is disclosed. The material fabrication system includes a sandwiched structure including a powder material placed between two solid members to enable explosive shock consolidation. The two solid members are precooled to about 80--100 K to reduce the residual temperatures attained as a result of the shock wave treatment, and thereby increase the quench rate of the consolidated powder. 9 figs.

  8. Ion energy-angle distribution functions at the plasma-material interface in oblique magnetic fields

    SciTech Connect (OSTI)

    Khaziev, Rinat; Curreli, Davide

    2015-04-15

    The ion energy-angle distribution (IEAD) at the wall of a magnetized plasma is of fundamental importance for the determination of the material processes occurring at the plasma-material interface, comprising secondary emissions and material sputtering. Here, we present a numerical characterization of the IEAD at the wall of a weakly collisional magnetized plasma with the magnetic field inclined at an arbitrary angle with respect to the wall. The analysis has been done using two different techniques: (1) a fluid-Monte Carlo method, and (2) particle-in-cell simulations, the former offering a fast but approximate method for the determination of the IEADs, the latter giving a computationally intensive but self-consistent treatment of the plasma behavior from the quasi-neutral region to the material boundary. The two models predict similar IEADs, whose similarities and differences are discussed. Data are presented for magnetic fields inclined at angles from normal to grazing incidence (0°–85°). We show the scaling factors of the average and peak ion energy and trends of the pitch angle at the wall as a function of the magnetic angle, for use in the correlation of fluid plasma models to material models.

  9. THERMAL IMAGING OF ACTIVE MAGNETIC REGERNERATOR MCE MATERIALS DURING OPERATION

    SciTech Connect (OSTI)

    Shassere, Benjamin [ORNL] [ORNL; West, David L [ORNL] [ORNL; Abdelaziz, Omar [ORNL] [ORNL; Evans III, Boyd Mccutchen [ORNL] [ORNL

    2012-01-01

    An active magnetic regenerator (AMR) prototype was constructed that incorporates a Gd sheet into the regenerator wall to enable visualization of the system s thermal transients. In this experiment, the thermal conditions inside the AMR are observed under a variety of operating conditions. An infrared (IR) camera is employed to visualize the thermal transients within the AMR. The IR camera is used to visually and quantitatively evaluate the temperature difference and thus giving means to calculate the performance of the system under the various operating conditions. Thermal imaging results are presented for two differing experimental test runs. Real time imaging of the thermal state of the AMR has been conducted while operating the system over a range of conditions. A 1 Tesla twin-coil electromagnet (situated on a C frame base) is used for this experiment such that all components are stationary during testing. A modular, linear reciprocating system has been realized in which the effects of regenerator porosity and utilization factor can be investigated. To evaluate the performance variation in porosity and utilization factor the AMR housing was constructed such that the plate spacing of the Gd sheets may be varied. Each Gd sheet has dimensions of 38 mm wide and 66 mm long with a thickness of 1 mm and the regenerator can hold a maximum of 29 plates with a spacing of 0.25 mm. Quantitative and thermal imaging results are presented for several regenerator configurations.

  10. Use of High Magnetic Fields to Improve Material Properties for Hydraulics, Automotive and Truck Components

    SciTech Connect (OSTI)

    Ludtka, Gerard Michael; Ludtka, Gail Mackiewicz-; Wilgen, John B; Kisner, Roger A; Ahmad, Aquil

    2010-08-01

    In this CRADA, research and development activities were successfully conducted on magnetic processing effects for the purpose of manipulating microstructure and the application specific performance of three alloys provided by Eaton (alloys provided were: carburized steel, plain low carbon steel and medium carbon spring steel). Three specific industrial/commercial application areas were considered where HMFP can be used to provide significant energy savings and improve materials performance include using HMFP to: 1.) Produce higher material strengths enabling higher torque bearing capability for drive shafts and other motor components; 2.) Increase the magnetic response in an iron-based material, thereby improving its magnetic permeability resulting in improved magnetic coupling and power density, and 3.) Improve wear resistance. The very promising results achieved in this endeavor include: 1.) a significant increase in tensile strength and a major reduction in volume percent retained austenite for the carburized alloy, and 2.) a substantial improvement in magnetic perm respect to a no-field processed sample (which also represents a significant improvement over the nominal conventional automotive condition of no heat treatment). The successful completion of these activities has resulted in the current 3-year CRADA No. NFE-09-02522 Prototyping Energy Efficient ThermoMagnetic and Induction Hardening for Heat Treat and Net Shape Forming Applications .

  11. Thermal effects on transducer material for heat assisted magnetic recording application

    SciTech Connect (OSTI)

    Ji, Rong Xu, Baoxi; Cen, Zhanhong; Ying, Ji Feng; Toh, Yeow Teck

    2015-05-07

    Heat Assisted Magnetic Recording (HAMR) is a promising technology for next generation hard disk drives with significantly increased data recording capacities. In HAMR, an optical near-field transducer (NFT) is used to concentrate laser energy on a magnetic recording medium to fulfill the heat assist function. The key components of a NFT are transducer material, cladding material, and adhesion material between the cladding and the transducer materials. Since transducer materials and cladding materials have been widely reported, this paper focuses on the adhesion materials between the Au transducer and the Al{sub 2}O{sub 3} cladding material. A comparative study for two kinds of adhesion material, Ta and Cr, has been conducted. We found that Ta provides better thermal stability to the whole transducer than Cr. This is because after thermal annealing, chromium forms oxide material at interfaces and chromium atoms diffuse remarkably into the Au layer and react with Au to form Au alloy. This study also provides insights on the selection of adhesion material for HAMR transducer.

  12. Center for Electrocatalysis, Transport Phenomena, and Materials (CETM) for Innovative Energy Storage - Final Report

    SciTech Connect (OSTI)

    Soloveichik, Grigorii

    2015-11-30

    EFRC vision. The direct use of organic hydrides in fuel cells as virtual hydrogen carriers that generate stable organic molecules, protons, and electrons upon electro-oxidation and can be electrochemically charged by re-hydrogenating the oxidized carrier was the major focus of the Center for Electrocatalysis, Transport Phenomena and Materials for Innovative Energy Storage (EFRC-ETM). Compared to a hydrogen-on-demand design that includes thermal decomposition of organic hydrides in a catalytic reactor, the proposed approach is much simpler and does not require additional dehydrogenation catalysts or heat exchangers. Further, this approach utilizes the advantages of a flow battery (i.e., separation of power and energy, ease of transport and storage of liquid fuels) with fuels that have system energy densities similar to current hydrogen PEM fuel cells. EFRC challenges. Two major EFRC challenges were electrocatalysis and transport phenomena. The electrocatalysis challenge addresses fundamental processes which occur at a single molecular catalyst (microscopic level) and involve electron and proton transfer between the hydrogen rich and hydrogen depleted forms of organic liquid fuel and the catalyst. To form stable, non-radical dehydrogenation products from the organic liquid fuel, it is necessary to ensure fast transport of at least two electrons and two protons (per double bond formation). The same is true for the reverse hydrogenation reaction. The transport phenomena challenge addresses transport of electrons to/from the electrocatalyst and the current collector as well as protons across the polymer membrane. Additionally it addresses prevention of organic liquid fuel, water and oxygen transport through the PEM. In this challenge, the transport of protons or molecules involves multiple sites or a continuum (macroscopic level) and water serves as a proton conducting medium for the majority of known sulfonic acid based PEMs. Proton transfer in the presence of prospective organic liquid fuels was studied. During EFRC program various types of electrocatalysts, classes of fuels, and membranes have been investigated.

  13. Ultra-low field nuclear magnetic resonance and magnetic resonance imaging to discriminate and identify materials

    DOE Patents [OSTI]

    Matlashov, Andrei Nikolaevich; Urbaitis, Algis V.; Savukov, Igor Mykhaylovich; Espy, Michelle A.; Volegov, Petr Lvovich; Kraus, Jr., Robert Henry

    2013-03-05

    Method comprising obtaining an NMR measurement from a sample wherein an ultra-low field NMR system probes the sample and produces the NMR measurement and wherein a sampling temperature, prepolarizing field, and measurement field are known; detecting the NMR measurement by means of inductive coils; analyzing the NMR measurement to obtain at least one measurement feature wherein the measurement feature comprises T1, T2, T1.rho., or the frequency dependence thereof; and, searching for the at least one measurement feature within a database comprising NMR reference data for at least one material to determine if the sample comprises a material of interest.

  14. LANSCE | Lujan Center | Highlights | Emergent Magnetism at LaAIo3/SRTiO3

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

    interfaces; Fact or Fiction? Emergent magnetism at LaAlO3/SrTiO3 interfaces: Fact or Fiction? image Examined LaAlO3/SrTiO3 superlattices fabricated from groups in Spain and the Netherlands with polarized neutron reflectometry (PNR). PNR is intrinsically sensitive to interfacial magnetization; bulk magnetometry is not. Difference between the spin up and down neutron reflectivities normalized by their sum (spin asymmetry) is shown in the figure (symbols). Anticipated spin asymmetry for

  15. Logan Daum > Analyst - DC Energy > Center Alumni > The Energy Materials

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

    Center at Cornell Logan Daum Analyst - DC Energy lrd56@cornell.edu Formerly a graduate student with the Fennie Group, Logan joined DC Energy in June of 2013

  16. Young Investigator Program > Research > The Energy Materials Center at

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

    Cornell Young Investigator Program In This Section YIA1 - Chen YIA2 - Rodríguez-Calero YIA3 - Rodriguez-López YIA4 - Hernández-Burgos YIA5 - Khurana YIA6 - Potash Young Investigator Program This program is designed to encourage Center postdocs and students to submit collaborative proposals for new research projects that advance the Center's overall programmatic goal of advancing the science of energy conversion and storage by understanding and exploiting fundamental properties of active

  17. Explosives Center

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

    Explosives Center Explosives Center at Los Alamos National Laboratory A world leader in energetic materials research, development and applications, the Explosives Center's unique capabilities enable a dynamic, flexible response to address multiple evolving mission needs. explosives experiment Comprehensive energetic materials development, characterization and testing are key strengths at Los Alamos National Laboratory. An experimental explosive is shown igniting during small-scale impact

  18. Thermal plasma processed ferro-magnetically ordered face-centered cubic iron at room temperature

    SciTech Connect (OSTI)

    Raut, Suyog A.; Kanhe, Nilesh S.; Bhoraskar, S. V.; Mathe, V. L.; Das, A. K.

    2014-10-28

    Here, we report tailor made phase of iron nanoparticles using homogeneous gas phase condensation process via thermal plasma route. It was observed that crystal lattice of nano-crystalline iron changes as a function of operating parameters of the plasma reactor. In the present investigation iron nanoparticles have been synthesized in presence of argon at operating pressures of 1251000?Torr and fixed plasma input DC power of 6?kW. It was possible to obtain pure fcc, pure bcc as well as the mixed phases for iron nanoparticles in powder form as a function of operating pressure. The as synthesized product was characterized for understanding the structural and magnetic properties by using X-ray diffraction, vibrating sample magnetometer, and Mssbauer spectroscopy. The data reveal that fcc phase is ferromagnetically ordered with high spin state, which is unusual whereas bcc phase is found to be ferromagnetic as usual. Finally, the structural and magnetic properties are co-related.

  19. System and method for non-destructive evaluation of surface characteristics of a magnetic material

    DOE Patents [OSTI]

    Jiles, David C. (Ames, IA); Sipahi, Levent B. (Ames, IA)

    1994-05-17

    A system and a related method for non-destructive evaluation of the surface characteristics of a magnetic material. The sample is excited by an alternating magnetic field. The field frequency, amplitude and offset are controlled according to a predetermined protocol. The Barkhausen response of the sample is detected for the various fields and offsets and is analyzed. The system produces information relating to the frequency content, the amplitude content, the average or RMS energy content, as well as count rate information, for each of the Barkhausen responses at each of the excitation levels applied during the protocol. That information provides a contiguous body of data, heretofore unavailable, which can be analyzed to deduce information about the surface characteristics of the material at various depths below the surface.

  20. Henry Kostalik > Researcher - 3M > Center Alumni > The Energy Materials

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

    Center at Cornell Henry Kostalik Researcher - 3M hak27@cornell.edu Originally a member of the Coates Group, Henry received his PhD from Cornell in 2011. He is now working as a Sr. Research Specialist at 3M Corporate Research Laboratory.

  1. Nuclear Waste Materials Characterization Center. Semiannual progress report, April 1985-September 1985

    SciTech Connect (OSTI)

    Mendel, J.E.

    1985-12-01

    Work continued on converting MCC Quality Assurance practices to comply with the national QA standard for nuclear facilities, ANSI/ASME NQA-1. Support was provided to the following: Office of Geologic Repositories; Salt Repository Project; Basalt Waste Isolation Project; Office of Defense Waste and Byproducts Management; Hanford Programs; Transportation Technology Center; and West Valley Demonstration Project. (LM)

  2. Calendar of Research Meetings > News + Events > The Energy Materials Center

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

    at Cornell News + Events In This Section EMC2 News Upcoming Events Calendar of Research Meetings Archived News RSS & Calender Feeds 2013-2014 Research Meetings To download a pdf listing of upcoming Center Research Meetings and Seminars click here

  3. Method of making active magnetic refrigerant materials based on Gd-Si-Ge alloys

    DOE Patents [OSTI]

    Pecharsky, Alexandra O.; Gschneidner, Jr., Karl A.; Pecharsky, Vitalij K.

    2006-10-03

    An alloy made of heat treated material represented by Gd.sub.5(Si.sub.xGe.sub.1-x).sub.4 where 0.47.ltoreq.x.ltoreq.0.56 that exhibits a magnetic entropy change (-.DELTA.S.sub.m) of at least 16 J/kg K, a magnetostriction of at least 2000 parts per million, and a magnetoresistance of at least 5 percent at a temperature of about 300K and below, and method of heat treating the material between 800 to 1600 degrees C. for a time to this end.

  4. Center for Inverse Design: Modality 2 - Design of Materials with Targeted

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

    Functionality 2: Design of Materials with Targeted Functionality Modality 2 applies to cases where we have numerous-perhaps thousands-of materials, each with a single (usually ground-state) configuration, and the desired target property is complex, so it currently cannot be computed on the fly. In this case, we use "design principles"-derived quantities that can be calculated for each material and which suggest key materials parameters that need to be obtained to get the relevant

  5. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos Lab

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

    Related EFRC News What are EFRCs? Energy Frontier Research Centers address energy and science "grand challenges" in a broad range of research areas, which were defined through a series of technical workshops conducted by the DOE's Office of Science, Office of Basic Energy Sciences. The 46 EFRCs were selected from a pool of some 260 applications received in response to a Funding Opportunity Announcement issued by the DOE Office of Science. Selection was based on a rigorous merit review

  6. The Ohio State University Bioproducts Innovation Center Sustainable Materials Networking Event

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy Bioenergy Technologies Office Deputy Director Dr. Valerie Reed addressed members of The Ohio State University Bioproducts Innovation Center on October 15, 2015, on the main campus of The Ohio State University. Dr. Reed spoke about important upcoming opportunities from the U.S. Department of Energy and the U.S. Department of Agriculture supporting the national bioeconomy.

  7. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos Lab

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

    Michael I. Baskes Dr. Baskes obtained his B.S. degree at Caltech in 1965 in engineering and received his Ph.D. in 1970 at Caltech in Materials Science. He was then employed at Sandia National Laboratories, Livermore for 29 years. At Sandia he was a staff member until 1983. He was then supervisor of the Scientific Computing Division, the Theoretical Division, the Joining and Physical Metallurgy Division, and the Materials and Process Research Division. He was also manager of the Materials and

  8. LANSCE | Lujan Center | Instruments

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

    Lujan Instruments Lujan Center Flight Paths Instrument Suite by Science Crystallography: NPDF, HIPD, HIPPO,PCS Engineering and Strain: HIPPO, SMARTS, NPDF Disordered Materials: NPDF, HIPD, HIPPO Large Scale Structures: LQD, ASTERIX Magnetism: ASTERIX, HIPD, HIPPO Biology: PCS, LQD Neutron Imaging: HIPPO, SMARTS, NPDF Nuclear Science and Technology: DANCE, FP5, FP12 Instrument Suite by Technique Powder Diffractometers: HIPD, HIPPO, NPDF, SMARTS Engineering Diffraction: SMARTS Reflectometer:

  9. Cryogenic Considerations for Superconducting Magnet Design for the Material Plasma Exposure eXperiment

    SciTech Connect (OSTI)

    Duckworth, Robert C; Demko, Dr. Jonathan A; Lumsdaine, Arnold; Caughman, John B; Goulding, Richard Howell; McGinnis, William Dean; Bjorholm, Thomas P; Rapp, Juergen

    2015-01-01

    In order to determine long term performance of plasma facing components such as diverters and first walls for fusion devices, next generation plasma generators are needed. A Material Plasma Exposure eXperiment (MPEX) has been proposed to address this need through the generation of plasmas in front of the target with electron temperatures of 1-15 eV and electron densities of 1020 to 1021 m-3. Heat fluxes on target diverters could reach 20 MW/m2. In order generate this plasma, a unique radio frequency helicon source and heating of electrons and ions through Electron Bernstein Wave (EBW) and Ion Cyclotron Resonance Heating (ICRH) has been proposed. MPEX requires a series of magnets with non-uniform central fields up to 2 T over a 5m length in the heating and transport region and 1 T uniform central field over a 1-m length on a diameter of 1.3 m. Given the field requirements, superconducting magnets are under consideration for MPEX. In order to determine the best construction method for the magnets, the cryogenic refrigeration has been analyzed with respect to cooldown and operational performance criteria for open-cycle and closed-cycle systems, capital and operating costs of these system, and maturity of supporting technology such as cryocoolers. These systems will be compared within the context of commercially available magnet constructions to determine the most economical method for MPEX operation. The current state of the MPEX magnet design including details on possible superconducting magnet configurations will be presented.

  10. Tokamak Physics EXperiment (TPX): Toroidal field magnet design, development and manufacture. SDRL 21, Materials and processes selection. Volume 2

    SciTech Connect (OSTI)

    Smith, B.R.

    1995-08-15

    This document identifies the candidate materials and manufacturing processes selected for development of the TPX Toroidal Field (TF) Magnet. Supporting rationale and selection criteria are provided for justification and the materials properties database report is included for completeness. Specific properties for each material selection are included in this document.

  11. Naval Air Warfare Center, Aircraft Division at Warminster Environmental Materials Program. Phase 1. Interim report, October 1989-May 1992

    SciTech Connect (OSTI)

    Spadafora, S.J.; Hegedus, C.R.; Clark, K.J.; Eng, A.T.; Pulley, D.F.

    1992-06-24

    With the recent increase in awareness about the environment, there is an expanding concern of the deleterious effects of current materials and processes. Federal, state and local environmental agencies such as the EPA, State Air Resource Boards and local Air Quality Management Districts (AQMD) have issued legislation that restrict or prohibit the use and disposal of hazardous materials. National and local laws like the Clean Air and Clean Water Acts, Resource Conservation and Recovery Act, and AQMD regulations are examples of rules that govern the handling and disposal of hazardous materials and waste. The Department of Defense (DoD), in support of this effort, has identified the major generators of hazardous materials and hazardous waste to be maintenance depots and operations, particularly cleaning, pretreating, plating, painting and paint removal processes. Reductions of waste in these areas has been targeted as a primary goal in the DOD. The Navy is committed to significantly reducing its current hazardous waste generation and is working to attain a near zero discharge of hazardous waste by the year 2000. In order to attain these goals, the Naval Air Warfare Center Aircraft Division at Warminster has organized and is carrying out a comprehensive program in cooperation with the Naval Air Systems Command, the Air Force and the Department of Energy that deal with the elimination or reduction of hazardous materials. .... Environmental materials, Organic coatings, Inorganic pretreatments, Paint removal techniques, Cleaners, CFC'S.

  12. 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

  13. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos Lab

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

    William D. Nix Professor Nix obtained his B.S. degree in Metallurgical Engineering from San Jose State College, and his M.S. and Ph.D. degrees in Metallurgical Engineering and Materials Science, respectively, from Stanford University. He joined the faculty at Stanford in 1963 and was appointed Professor in 1972. He was named the Lee Otterson Professor of Engineering at Stanford University in 1989 and served as Chairman of the Department of Materials Science and Engineering from 1991 to 1996. He

  14. Effect of composition and heat treatment on MnBi magnetic materials

    SciTech Connect (OSTI)

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

    2014-10-01

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

  15. Center for Materials at Irradiation and Mechanical Extremes: Los Alamos Lab

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

    Contacts Project Office Director Michael Nastasi (505) 667-7007 Co-Director Amit Misra (505) 667-9860 cmime@lanl.gov Resources Employment Opportunities News Related EFRC News - What are EFRCs? - Another LANL EFRC - Materials at Extremes EFRCs Upcoming Events Scientific Hypotheses Absorption and recombination of point and line defects at interfaces Hypotheses: The atomic structure of the interface controls the absorption, emission, storage and annihilation of defects at the interface. Misfit

  16. Nanoparticles > Complex Oxides > Research > The Energy Materials Center at

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

    Cornell Nanoparticles The nanoparticle synthesis efforts at EMC2 mostly take place in the Frank DiSalvo group, and focus on preparing useful fuel cell electrocatalysts in nanoparticle form. The research groups in EMC2 (formerly the Cornell Fuel Cell Institute) have discovered that bulk ordered intermetallic compounds- a class of solid materials that are made of multiple metals, but are not random alloys- show impressive resistance to poisoning as anode catalysts, and amazing activity for

  17. Magnetic Materials at finite Temperatures: thermodynamics and combined spin and molecular dynamics derived from first principles calculations

    SciTech Connect (OSTI)

    Eisenbach, Markus; Perera, Meewanage Dilina N; Landau, David P; Nicholson, Don M; Yin, Junqi; Brown, Greg

    2015-01-01

    We present a unified approach to describe the combined behavior of the atomic and magnetic degrees of freedom in magnetic materials. Using Monte Carlo simulations directly combined with first principles the Curie temperature can be obtained ab initio in good agreement with experimental values. The large scale constrained first principles calculations have been used to construct effective potentials for both the atomic and magnetic degrees of freedom that allow the unified study of influence of phonon-magnon coupling on the thermodynamics and dynamics of magnetic systems. The MC calculations predict the specific heat of iron in near perfect agreement with experimental results from 300K to above Tc and allow the identification of the importance of the magnon-phonon interaction at the phase-transition. Further Molecular Dynamics and Spin Dynamics calculations elucidate the dynamics of this coupling and open the potential for quantitative and predictive descriptions of dynamic structure factors in magnetic materials using first principles derived simulations.

  18. In silico screening of carbon-capture materials | Center for Gas

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

    SeparationsRelevant to Clean Energy Technologies | Blandine Jerome In silico screening of carbon-capture materials Previous Next List L.-C. Lin, A. H. Berger, R. L. Martin, J. Kim, J. A. Swisher, K. Jariwala, C. H. Rycroft, A. S. Bhown, M. W. Deem, M. Haranczyk, and B. Smit, Nat Mater 11 (7), 633 (2012) DOI: 10.1038/nmat3336 Abstract: One of the main bottlenecks to deploying large-scale carbon dioxide capture and storage (CCS) in power plants is the energy required to separate the CO2 from

  19. Why Partnerships? > Partnerships > The Energy Materials Center at Cornell

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

    View Slideshow › This page has images associated with it. Click above to view. Ford_logo Lockhhed_logo Primet_logo In This Section Why Partnerships? Current Partners Project Updates News & Events Resources Join PARTNERSHIPS Why Partnerships? ›Project Updates ›News + Events › Why Partnerships? Researchers at emc2 are focusing research resources on understanding and development of novel materials to improve energy technologies. We see our role as contributing necessary elements to

  20. Magnetic Resonance Facility (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    This fact sheet provides information about Magnetic Resonance Facility capabilities and applications at NREL's National Bioenergy Center. Liquid and solid-state analysis capability for a variety of biomass, photovoltaic, and materials characterization applications across NREL. NREL scientists analyze solid and liquid samples on three nuclear magnetic resonance (NMR) spectrometers as well as an electron paramagnetic resonance (EPR) spectrometer.

  1. Energy Frontier Research Center Materials Science of Actinides (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Burns, Peter (Director, Materials Science of Actinides); MSA Staff

    2011-11-03

    'Energy Frontier Research Center Materials Science of Actinides' was submitted by the EFRC for Materials Science of Actinides (MSA) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. MSA is directed by Peter Burns at the University of Notre Dame, and is a partnership of scientists from ten institutions.The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges.

  2. Undergraduate Research at the Center for Energy Efficient Materials (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum

    ScienceCinema (OSTI)

    Bowers, John (Director, Center for Energy Efficient Materials ); CEEM Staff

    2011-11-02

    'Undergraduate Research at the Center for Energy Efficient Materials (CEEM)' was submitted by CEEM to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CEEM, an EFRC directed by John Bowers at the University of California, Santa Barbara is a partnership of scientists from four institutions: UC, Santa Barbara (lead), UC, Santa Cruz, Los Alamos National Laboratory, and National Renewable Energy Laboratory. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Energy Efficient Materials is 'to discover and develop materials that control the interactions between light, electricity, and heat at the nanoscale for improved solar energy conversion, solid-state lighting, and conversion of heat into electricity.' Research topics are: solar photovoltaic, photonic, solid state lighting, optics, thermoelectric, bio-inspired, electrical energy storage, batteries, battery electrodes, novel materials synthesis, and scalable processing.

  3. Executive Summaries for the Hydrogen Storage Materials Center of Excellence- Chemical Hydrogen Storage CoE, Hydrogen Sorption CoE, and Metal Hydride CoE

    Broader source: Energy.gov [DOE]

    This report contains the executive summaries of the final technical reports from the three Hydrogen Storage Centers of Excellence that operated from 2005 through 2010 to develop advanced hydrogen storage materials in the areas of Chemical Hydrogen Storage Materials, Hydrogen Sorbents, and Reversible Metal Hydrides.

  4. Magnetic Processing A Pervasive Energy Efficient Technology for Next Generation Materials for Aerospace and Specialty Steel Markets

    SciTech Connect (OSTI)

    Mackiewicz-Ludtka, G.; Ludtka, G.M.; Ray, P.; Magee, J.

    2010-09-10

    Thermomagnetic Magnetic Processing is an exceptionally fertile, pervasive and cross-cutting technology that is just now being recognized by several major industry leaders for its significant potential to increase energy efficiency and materials performance for a myriad of energy intensive industries in a variety of areas and applications. ORNL has pioneered the use and development of large magnetic fields in thermomagnetically processing (T-MP) materials for altering materials phase equilibria and transformation kinetics. ORNL has discovered that using magnetic fields, we can produce unique materials responses. T-MP can produce unique phase stabilities & microstructures with improved materials performance for structural and functional applications not achieved with traditional processing techniques. These results suggest that there are unprecedented opportunities to produce significantly enhanced materials properties via atomistic level (nano-) microstructural control and manipulation. ORNL (in addition to others) have shown that grain boundary chemistry and precipitation kinetics are also affected by large magnetic fields. This CRADA has taken advantage of ORNLs unique, custom-designed thermo-magnetic, 9 Tesla superconducting magnet facility that enables rapid heating and cooling of metallic components within the magnet bore; as well as ORNLs expertise in high magnetic field (HMF) research. Carpenter Technologies, Corp., is a a US-based industrial company, that provides enhanced performance alloys for the Aerospace and Specialty Steel products. In this CRADA, Carpenter Technologies, Corp., is focusing on applying ORNLs Thermomagnetic Magnetic Processing (TMP) technology to improve their current and future proprietary materials product performance and open up new markets for their Aerospace and Specialty Steel products. Unprecedented mechanical property performance improvements have been demonstrated for a high strength bainitic alloy industrial/commercial alloy that is envisioned to provide the potential for new markets for this alloy. These thermomechanical processing results provide these alloys with a major breakthrough demonstrating that simultaneous improvements in yield strength and ductility are achieved: 12 %, 10%, 13%, and 22% increases in yield strength, elongation, reduction-in-area, and impact energy respectively. In addition, TMP appears to overcome detrimental chemical homogeneity impacts on uniform microstructure evolution.

  5. Rare-Earth-Free Permanent Magnets for Electrical Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite

    SciTech Connect (OSTI)

    Hong, Yang-Ki; Haskew, Timothy; Myryasov, Oleg; Jin, Sungho; Berkowitz, Ami

    2014-06-05

    The research we conducted focuses on the rare-earth (RE)-free permanent magnet by modeling, simulating, and synthesizing exchange coupled two-phase (hard/soft) RE-free core-shell nano-structured magnet. The RE-free magnets are made of magnetically hard core materials (high anisotropy materials including Mn-Bi-X and M-type hexaferrite) coated by soft shell materials (high magnetization materials including Fe-Co or Co). Therefore, our research helps understand the exchange coupling conditions of the core/shell magnets, interface exchange behavior between core and shell materials, formation mechanism of core/shell structures, stability conditions of core and shell materials, etc.

  6. Suboxide/subnitride formation on Ta masks during magnetic material etching by reactive plasmas

    SciTech Connect (OSTI)

    Li, Hu; Muraki, Yu; Karahashi, Kazuhiro; Hamaguchi, Satoshi

    2015-07-15

    Etching characteristics of tantalum (Ta) masks used in magnetoresistive random-access memory etching processes by carbon monoxide and ammonium (CO/NH{sub 3}) or methanol (CH{sub 3}OH) plasmas have been examined by mass-selected ion beam experiments with in-situ surface analyses. It has been suggested in earlier studies that etching of magnetic materials, i.e., Fe, Ni, Co, and their alloys, by such plasmas is mostly due to physical sputtering and etch selectivity of the process arises from etch resistance (i.e., low-sputtering yield) of the hard mask materials such as Ta. In this study, it is shown that, during Ta etching by energetic CO{sup +} or N{sup +} ions, suboxides or subnitrides are formed on the Ta surface, which reduces the apparent sputtering yield of Ta. It is also shown that the sputtering yield of Ta by energetic CO{sup +} or N{sup +} ions has a strong dependence on the angle of ion incidence, which suggests a correlation between the sputtering yield and the oxidation states of Ta in the suboxide or subnitride; the higher the oxidation state of Ta, the lower is the sputtering yield. These data account for the observed etch selectivity by CO/NH{sub 3} and CH{sub 3}OH plasmas.

  7. Center for Nonlinear Studies

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

    Applied Geophysical Experiences Materials Design Calendar NSEC Center for Nonlinear Studies Center for Nonlinear Studies Serving as an interface between mission...

  8. Vanadium oxide based nanostructured materials for catalytic oxidative dehydrogenation of propane : effect of heterometallic centers on the catalyst performance.

    SciTech Connect (OSTI)

    Khan, M. I.; Deb, S.; Aydemir, K.; Alwarthan, A. A.; Chattopadhyay, S.; Miller, J. T.; Marshall, C. L.

    2010-01-01

    Catalytic properties of a series of new class of catalysts materials-[Co{sub 3}(H{sub 2}O){sub 12}V{sub 18}O{sub 42} (XO{sub 4})].24H{sub 2}O (VNM-Co), [Fe{sub 3}(H{sub 2}O){sub 12}V{sub 18}O{sub 42}(XO{sub 4})].24H{sub 2}O (VNM-Fe) (X = V, S) and [H{sub 6}Mn{sub 3}(H{sub 2}O){sub 12}V{sub 18}O{sub 42}(VO{sub 4})].30H{sub 2}O for the oxidative dehydrogenation of propane is studied. The open-framework nanostructures in these novel materials consist of three-dimensional arrays of {l_brace}V{sub 18}O{sub 42}(XO{sub 4}){r_brace} (X = V, S) clusters interconnected by {l_brace}-O-M-O-{r_brace} (M = Mn, Fe, Co) linkers. The effect of change in the heterometallic center M (M = Mn, Co, Fe) of the linkers on the catalyst performance was studied. The catalyst material with Co in the linker showed the best performance in terms of propane conversion and selectivity at 350 C. The material containing Fe was most active but least selective and Mn containing catalyst was least active. The catalysts were characterized by Temperature Programmed Reduction (TPR), BET surface area measurement, Diffuse Reflectance Infrared Fourier Transform Spectroscopy, and X-ray Absorption Spectroscopy. TPR results show that all three catalysts are easily reducible and therefore are active at relatively low temperature. In situ X-ray absorption near edge spectroscopy (XANES) and extended X-ray absorption fine structure spectroscopy (EXAFS) studies revealed that the oxidation state of Co(II) remained unchanged up to 425 C (even after pretreatment). The reduction of Co(II) into metallic form starts at 425 C and this process is completed at 600 C.

  9. Inverse Design: Playing "Jeopardy" in Materials Science (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Alex Zunger (former Director, Center for Inverse Design); Tumas, Bill (Director, Center for Inverse Design); CID Staff

    2011-11-02

    'Inverse Design: Playing 'Jeopardy' in Materials Science' was submitted by the Center for Inverse Design (CID) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CID, an EFRC directed by Bill Tumas at the National Renewable Energy Laboratory is a partnership of scientists from five institutions: NREL (lead), Northwestern University, University of Colorado, Stanford University, and Oregon State University. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Inverse Design is 'to replace trial-and-error methods used in the development of materials for solar energy conversion with an inverse design approach powered by theory and computation.' Research topics are: solar photovoltaic, photonic, metamaterial, defects, spin dynamics, matter by design, novel materials synthesis, and defect tolerant materials.

  10. Anomalous magnetic behavior in nanocomposite materials of reduced graphene oxide-Ni/NiFe{sub 2}O{sub 4}

    SciTech Connect (OSTI)

    Kollu, Pratap E-mail: anirmalagrace@vit.ac.in; Prathapani, Sateesh; Varaprasadarao, Eswara K.; Mallick, Sudhanshu; Bahadur, D. E-mail: anirmalagrace@vit.ac.in; Santosh, Chella; Grace, Andrews Nirmala E-mail: anirmalagrace@vit.ac.in

    2014-08-04

    Magnetic Reduced Graphene Oxide-Nickel/NiFe{sub 2}O{sub 4} (RGO-Ni/NF) nanocomposite has been synthesized by one pot solvothermal method. Respective phase formations and their purities in the composite are confirmed by High Resolution Transmission Electron Microscope and X Ray Diffraction, respectively. For the RGO-Ni/NF composite material finite-size effects lead to the anomalous magnetic behavior, which is corroborated in temperature and field dependent magnetization curves. Here, we are reporting the behavior of higher magnetization values for Zero Field Cooled condition to that of Field Cooled for the RGO-Ni/NF nanocomposite. Also, the observed negative and positive moments in Hysteresis loops at relatively smaller applied fields (100?Oe and 200?Oe) are explained on the basis of surface spin disorder.

  11. Dynamic high pressure process for fabricating superconducting and permanent magnetic materials

    DOE Patents [OSTI]

    Nellis, William J. (Berkeley, CA); Maple, M. Brian (Del Mar, CA); Geballe, Theodore H. (Woodside, CA)

    1988-01-01

    Shock wave formation of superconductive ceramic oxide electric and magnetic circuit elements with improved microstructures and mechanical properties.

  12. Dynamic high pressure process for fabricating superconducting and permanent magnetic materials

    DOE Patents [OSTI]

    Nellis, W.J.; Maple, M.B.; Geballe, T.H.

    1987-10-23

    Shock wave formation of superconductive ceramic oxide electric and magnetic circuit elements with improved microstructures and mechanical properties. 10 figs.

  13. Thermal and high magnetic field treatment of materials and associated apparatus

    DOE Patents [OSTI]

    Kisner, Roger A.; Wilgen, John B.; Ludtka, Gerard M.; Jaramillo, Roger A.; Mackiewicz-Ludtka, Gail

    2007-01-09

    An apparatus and method for altering characteristics, such as can include structural, magnetic, electrical, optical or acoustical characteristics, of an electrically-conductive workpiece utilizes a magnetic field within which the workpiece is positionable and schemes for thermally treating the workpiece by heating or cooling techniques in conjunction with the generated magnetic field so that the characteristics of the workpiece are effected by both the generated magnetic field and the thermal treatment of the workpiece.

  14. Thermal and high magnetic field treatment of materials and associated apparatus

    DOE Patents [OSTI]

    Kisner, Roger A.; Wilgen, John B.; Ludtka, Gerard M.; Jaramillo, Roger A.; Mackiewicz-Ludtka, Gail

    2010-06-29

    An apparatus and method for altering characteristics, such as can include structural, magnetic, electrical, optical or acoustical characteristics, of an electrically-conductive workpiece utilizes a magnetic field within which the workpiece is positionable and schemes for thermally treating the workpiece by heating or cooling techniques in conjunction with the generated magnetic field so that the characteristics of the workpiece are effected by both the generated magnetic field and the thermal treatment of the workpiece.

  15. The Center for Material Science of Nuclear Fuel (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Allen, Todd (Director, Center for Material Science of Nuclear Fuel); CMSNF Staff

    2011-11-02

    'The Center for Material Science of Nuclear Fuel (CMSNF)' was submitted by the CMSNF to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CMSNF, an EFRC directed by Todd Allen at the Idaho National Laboratory is a partnership of scientists from six institutions: INL (lead), Colorado School of Mines, University of Florida, Florida State University, Oak Ridge National Laboratory, and the University of Wisconsin at Madison. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Materials Science of Nuclear Fuels is 'to achieve a first-principles based understanding of the effect of irradiation-induced defects and microstructures on thermal transport in oxide nuclear fuels.' Research topics are: phonons, thermal conductivity, nuclear, extreme environment, radiation effects, defects, and matter by design.

  16. Final Technical Report on DE-SC00002460 [Bimetallic or trimetallic materials with structural metal centers based on Mn, Fe or V

    SciTech Connect (OSTI)

    Takeuchi, Esther Sans; Takeuchi, Kenneth James; Marschilok, Amy Catherine

    2013-07-26

    Bimetallic or trimetallic materials with structural metal centers based on Mn, Fe or V were investigated under this project. These metal centers are the focus of this research as they have high earth abundance and have each shown success as cathode materials in lithium batteries. Silver ion, Ag{sup +}, was initially selected as the displacement material as reduction of this center should result in increased conductivity as Ag{sup 0} metal particles are formed in-situ upon electrochemical reduction. The in-situ formation of metal nanoparticles upon electrochemical reduction has been previously noted, and more recently, we have investigated the resulting increase in conductivity. Layered materials as well as materials with tunnel or channel type structures were selected. Layered materials are of interest as they can provide 2-dimensional ion mobility. Tunnel or channel structures are also of interest as they provide a rigid framework that should remain stable over many discharge/charge cycles. We describe some examples of materials we have synthesized that demonstrate promising electrochemistry.

  17. Induced magnetic anisotropy in Si-free nanocrystalline soft magnetic materials: A transmission x-ray diffraction study

    SciTech Connect (OSTI)

    Parsons, R. Suzuki, K.; Yanai, T.; Kishimoto, H.; Kato, A.; Ohnuma, M.

    2015-05-07

    In order to better understand the origin of field-induced anisotropy (K{sub u}) in Si-free nanocrystalline soft magnetic alloys, the lattice spacing of the bcc-Fe phase in nanocrystalline Fe{sub 94?x}Nb{sub 6}B{sub x} (x?=?10, 12, 14) alloys annealed under an applied magnetic field has been investigated by X-ray diffraction in transmission geometry (t-XRD) with the diffraction vector parallel and perpendicular to the field direction. The saturation magnetostriction (?{sub s}) of nanocrystalline Fe{sub 94?x}Nb{sub 6}B{sub x} was found to increase linearly with the volume fraction of the residual amorphous phase and is well described by taking into account the volume-weighted average of two local ?{sub s} values for the bcc-Fe nanocrystallites (?5??2?ppm) and the residual amorphous matrix (+8??2?ppm). The lattice distortion required to produce the measured K{sub u} values (?100?J/m{sup 3}) was estimated via the inverse magnetostrictive effect using the measured ?{sub s} values and was compared to the lattice spacing estimations made by t-XRD. The lattice strain required to produce K{sub u} under the magnetoelastic model was not observed by the t-XRD experiments and so the findings of this study suggest that the origin of magnetic field induced K{sub u} cannot be explained through the magnetoelastic effect.

  18. Removal of radioactive materials and heavy metals from water using magnetic resin

    DOE Patents [OSTI]

    Kochen, R.L.; Navratil, J.D.

    1997-01-21

    Magnetic polymer resins capable of efficient removal of actinides and heavy metals from contaminated water are disclosed together with methods for making, using, and regenerating them. The resins comprise polyamine-epichlorohydrin resin beads with ferrites attached to the surfaces of the beads. Markedly improved water decontamination is demonstrated using these magnetic polymer resins of the invention in the presence of a magnetic field, as compared with water decontamination methods employing ordinary ion exchange resins or ferrites taken separately. 9 figs.

  19. Removal of radioactive materials and heavy metals from water using magnetic resin

    DOE Patents [OSTI]

    Kochen, Robert L. (Boulder, CO); Navratil, James D. (Simi Valley, CA)

    1997-01-21

    Magnetic polymer resins capable of efficient removal of actinides and heavy metals from contaminated water are disclosed together with methods for making, using, and regenerating them. The resins comprise polyamine-epichlorohydrin resin beads with ferrites attached to the surfaces of the beads. Markedly improved water decontamination is demonstrated using these magnetic polymer resins of the invention in the presence of a magnetic field, as compared with water decontamination methods employing ordinary ion exchange resins or ferrites taken separately.

  20. U.S. Rare Earth Magnet Patents Table | Critical Materials Institute

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

    U.S. Rare Earth Magnet Patents Table Neodymium-iron-boron magnet created with one-step refining process developed at The Ames Laboratory. CMI reviewed the U.S. patent database to better understand what is known about rare earth magnets and to identify potential areas to explore. Based on this, CMI created a table of more than 460 recent U.S. patents that address rare earth magnet compositions and processes. The table is available as a searchable pdf document (updated March 1, 2016). Information

  1. Active magnetic refrigerants based on Gd-Si-Ge material and refrigeration apparatus and process

    DOE Patents [OSTI]

    Gschneidner, K.A. Jr.; Pecharsky, V.K.

    1998-04-28

    Active magnetic regenerator and method using Gd{sub 5} (Si{sub x}Ge{sub 1{minus}x}){sub 4}, where x is equal to or less than 0.5, as a magnetic refrigerant that exhibits a reversible ferromagnetic/antiferromagnetic or ferromagnetic-II/ferromagnetic-I first order phase transition and extraordinary magneto-thermal properties, such as a giant magnetocaloric effect, that renders the refrigerant more efficient and useful than existing magnetic refrigerants for commercialization of magnetic regenerators. The reversible first order phase transition is tunable from approximately 30 K to approximately 290 K (near room temperature) and above by compositional adjustments. The active magnetic regenerator and method can function for refrigerating, air conditioning, and liquefying low temperature cryogens with significantly improved efficiency and operating temperature range from approximately 10 K to 300 K and above. Also an active magnetic regenerator and method using Gd{sub 5} (Si{sub x} Ge{sub 1{minus}x}){sub 4}, where x is equal to or greater than 0.5, as a magnetic heater/refrigerant that exhibits a reversible ferromagnetic/paramagnetic second order phase transition with large magneto-thermal properties, such as a large magnetocaloric effect that permits the commercialization of a magnetic heat pump and/or refrigerant. This second order phase transition is tunable from approximately 280 K (near room temperature) to approximately 350 K by composition adjustments. The active magnetic regenerator and method can function for low level heating for climate control for buildings, homes and automobile, and chemical processing. 27 figs.

  2. Active magnetic refrigerants based on Gd-Si-Ge material and refrigeration apparatus and process

    DOE Patents [OSTI]

    Gschneidner, Jr., Karl A.; Pecharsky, Vitalij K.

    1998-04-28

    Active magnetic regenerator and method using Gd.sub.5 (Si.sub.x Ge.sub.1-x).sub.4, where x is equal to or less than 0.5, as a magnetic refrigerant that exhibits a reversible ferromagnetic/antiferromagnetic or ferromagnetic-II/ferromagnetic-I first order phase transition and extraordinary magneto-thermal properties, such as a giant magnetocaloric effect, that renders the refrigerant more efficient and useful than existing magnetic refrigerants for commercialization of magnetic regenerators. The reversible first order phase transition is tunable from approximately 30 K to approximately 290 K (near room temperature) and above by compositional adjustments. The active magnetic regenerator and method can function for refrigerating, air conditioning, and liquefying low temperature cryogens with significantly improved efficiency and operating temperature range from approximately 10 K to 300 K and above. Also an active magnetic regenerator and method using Gd.sub.5 (Si.sub.x Ge.sub.1-x).sub.4, where x is equal to or greater than 0.5, as a magnetic heater/refrigerant that exhibits a reversible ferromagnetic/paramagnetic second order phase transition with large magneto-thermal properties, such as a large magnetocaloric effect that permits the commercialization of a magnetic heat pump and/or refrigerant. This second order phase transition is tunable from approximately 280 K (near room temperature) to approximately 350 K by composition adjustments. The active magnetic regenerator and method can function for low level heating for climate control for buildings, homes and automobile, and chemical processing.

  3. MAGNETS

    DOE Patents [OSTI]

    Hofacker, H.B.

    1958-09-23

    This patent relates to nmgnets used in a calutron and more particularly to means fur clamping an assembly of magnet coils and coil spacers into tightly assembled relation in a fluid-tight vessel. The magnet comprises windings made up of an assembly of alternate pan-cake type coils and spacers disposed in a fluid-tight vessel. At one end of the tank a plurality of clamping strips are held firmly against the assembly by adjustable bolts extending through the adjacent wall. The foregoing arrangement permits taking up any looseness which may develop in the assembly of coils and spacers.

  4. Center for Materials at Irradiation and Mechanical Extremes at LANL (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Michael Nastasi (Director, Center for Materials at Irradiation and Mechanical Extremes); CMIME Staff

    2011-11-03

    'Center for Materials at Irradiation and Mechanical Extremes (CMIME) at LANL' was submitted by CMIME to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CMIME, an EFRC directed by Michael Nastasi at Los Alamos National Laboratory is a partnership of scientists from four institutions: LANL (lead), Carnegia Mellon University, the University of Illinois at Urbana Champaign, and the Massachusetts Institute of Technology. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges.

  5. Method for preparing high cure temperature rare earth iron compound magnetic material

    DOE Patents [OSTI]

    Huang, Yuhong; Wei, Qiang; Zheng, Haixing

    2002-01-01

    Insertion of light elements such as H,C, or N in the R.sub.2 Fe.sub.17 (R=rare earth metal) series has been found to modify the magnetic properties of these compounds, which thus become prospective candidates for high performance permanent magnets. The most spectacular changes are increases of the Curie temperature, T.sub.c, of the magnetization, M.sub.s, and of coercivity, H.sub.c, upon interstitial insertion. A preliminary product having a component R--Fe--C,N phase is produced by a chemical route. Rare earth metal and iron amides are synthesized followed by pyrolysis and sintering in an inert or reduced atmosphere, as a result of which, the R--Fe--C,N phases are formed. Fabrication of sintered rare earth iron nitride and carbonitride bulk magnet is impossible via conventional process due to the limitation of nitridation method.

  6. Executive Summaries for the Hydrogen Storage Materials Center of Excellence - Chemical Hydrogen Storage CoE, Hydrogen Sorption CoE, and Metal Hydride CoE

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

    Executive Summaries for the Hydrogen Storage Materials Centers of Excellence Chemical Hydrogen Storage CoE, Hydrogen Sorption CoE, and Metal Hydride CoE Period of Performance: 2005-2010 Fuel Cell Technologies Program Office of Energy Efficiency and Renewable Energy U. S. Department of Energy April 2012 2 3 Primary Authors: Chemical Hydrogen Storage (CHSCoE): Kevin Ott, Los Alamos National Laboratory Hydrogen Sorption (HSCoE): Lin Simpson, National Renewable Energy Laboratory Metal Hydride

  7. Magnetic Force Microscopy Study of Zr2Co11 -Based Nanocrystalline Materials: Effect of Mo Addition

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

    Yue, Lanping; Jin, Yunlong; Zhang, Wenyong; Sellmyer, David J.

    2015-01-01

    Tmore » he addition of Molybdenum was used to modify the nanostructure and enhance coercivity of rare-earth-free Zr2Co11-based nanocrystalline permanent magnets. he effect of Mo addition on magnetic domain structures of melt spun nanocrystalline Zr16Co84-xMox(x=0, 0.5, 1, 1.5, and 2.0) ribbons has been investigated. It was found that magnetic properties and local domain structures are strongly influenced by Mo doping. he coercivity of the samples increases with the increase in Mo content (x≤1.5). he maximum energy product(BH)maxincreases with increasingxfrom 0.5 MGOe forx=0to a maximum value of 4.2 MGOe forx=1.5. he smallest domain size with a relatively short magnetic correlation length of 128 nm and largest root-mean-square phase shiftΦrmsvalue of 0.66° are observed for thex=1.5. he optimal Mo addition promotes magnetic domain structure refinement and thus leads to a significant increase in coercivity and energy product in this sample.« less

  8. History of Resistance Welding Oxide Dispersion Strengthened Cladding and other High Temperature Materials at Center for Advanced Energy Studies

    SciTech Connect (OSTI)

    Larry Zirker; Nathan Jerred; Dr. Indrajit Charit; James Cole

    2012-03-01

    Research proposal 08-1079, 'A Comparative Study of Welded ODS Cladding Materials for AFCI/GNEP,' was funded in 2008 under an Advanced Fuel Cycle Initiative (AFCI) Research and Development Funding Opportunity, number DE-PS07-08ID14906. Th proposal sought to conduct research on joining oxide dispersion strengthen (ODS) tubing material to a solid end plug. This document summarizes the scientific and technical progress achieved during the project, which ran from 2008 to 2011.

  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. Theses - Publications - Center for Plasma in the Laboratory and...

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

    Madsion Dynamo Experiment Rotating Wall Machine ... Centers Center for Magnetic Self Organization Center ... DYNAMICS IN THE REVERSED-FIELD PINCH 2015 Cook, Carson: ...

  11. 10 Start-Ups to Watch > EMC2 News > The Energy Materials Center at Cornell

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

    10 Start-Ups to Watch November 2nd, 2015 › We love our mobile devices but have to put up with a modern-day anxiety: the peculiar discomfort felt when a battery indicator turns red. What if, rather than a desperate search for an outlet for the phone or electric car, we had more powerful, longer-lived batteries? Surpassing the performance of today's lithium-ion batteries will require new active materials that react with each other in novel ways. Materials firms are working to develop new

  12. The Ohio State University Bioproducts Innovation Center Sustainable...

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

    Ohio State University Bioproducts Innovation Center Sustainable Materials Networking Event The Ohio State University Bioproducts Innovation Center Sustainable Materials Networking...

  13. LANSCE | Lujan Center | Highlights | Local iron displacements and

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

    magnetoelastic coupling in a spin-ladder compound Local iron displacements and magnetoelastic coupling in a spin-ladder compound Hypothesis: Is magnetoelastic coupling in [FeX4]-based materials, an important ingredient in the emergence of superconductivity? Lujan Center: Combined Total Scattering and magnetic structure determination (HIPD-NPDF) The study of local, average and magnetic structure shows the existenceof highly correlated local iron (Fe) displacements in the spin-ladder iron

  14. Extreme Environments (EFree) Center

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

    Extreme Environments (EFree ) Center LLNL Co-PI: Jonathon Crowhurst e-mail bio Novel materials for energy applications Ultrafast reflectivity measurements under high pressure...

  15. LANL Virtual Center for Chemical Hydrogen Storage: Chemical Hydrogen Storage Using Ultra-high Surface Area Main Group Materials

    SciTech Connect (OSTI)

    Susan M. Kauzlarich; Phillip P. Power; Doinita Neiner; Alex Pickering; Eric Rivard; Bobby Ellis, T. M.; Atkins, A. Merrill; R. Wolf; Julia Wang

    2010-09-05

    The focus of the project was to design and synthesize light element compounds and nanomaterials that will reversibly store molecular hydrogen for hydrogen storage materials. The primary targets investigated during the last year were amine and hydrogen terminated silicon (Si) nanoparticles, Si alloyed with lighter elements (carbon (C) and boron (B)) and boron nanoparticles. The large surface area of nanoparticles should facilitate a favorable weight to volume ratio, while the low molecular weight elements such as B, nitrogen (N), and Si exist in a variety of inexpensive and readily available precursors. Furthermore, small NPs of Si are nontoxic and non-corrosive. Insights gained from these studies will be applied toward the design and synthesis of hydrogen storage materials that meet the DOE 2010 hydrogen storage targets: cost, hydrogen capacity and reversibility. Two primary routes were explored for the production of nanoparticles smaller than 10 nm in diameter. The first was the reduction of the elemental halides to achieve nanomaterials with chloride surface termination that could subsequently be replaced with amine or hydrogen. The second was the reaction of alkali metal Si or Si alloys with ammonium halides to produce hydrogen capped nanomaterials. These materials were characterized via X-ray powder diffraction, TEM, FTIR, TG/DSC, and NMR spectroscopy.

  16. Rare-Earth-Free Nanostructure Magnets: Rare-Earth-Free Permanent Magnets for Electric Vehicle Motors and Wind Turbine Generators: Hexagonal Symmetry Based Materials Systems Mn-Bi and M-type Hexaferrite

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: The University of Alabama is developing new iron- and manganese-based composite materials for use in the electric motors of EVs and renewable power generators that will demonstrate magnetic properties superior to todays best rare-earth-based magnets. Rare earths are difficult and expensive to refine. EVs and renewable power generators typically use rare earths to make their electric motors smaller and more powerful. The University of Alabama has the potential to improve upon the performance of current state-of-the-art rare-earth-based magnets using low-cost and more abundant materials such as manganese and iron. The ultimate goal of this project is to demonstrate improved performance in a full-size prototype magnet at reduced cost.

  17. Effect of substitutional defects on Kambersky damping in L1{sub 0} magnetic materials

    SciTech Connect (OSTI)

    Qu, T.; Victora, R. H.

    2015-02-16

    Kambersky damping, representing the loss of magnetic energy from the electrons to the lattice through the spin orbit interaction, is calculated for L1{sub 0} FePt, FePd, CoPt, and CoPd alloys versus chemical degree of order. When more substitutional defects exist in the alloys, damping is predicted to increase due to the increase of the spin-flip channels allowed by the broken symmetry. It is demonstrated that this corresponds to an enhanced density of states (DOS) at the Fermi level, owing to the rounding of the DOS with loss of long-range order. Both the damping and the DOS of the Co-based alloy are found to be less affected by the disorder. Pd-based alloys are predicted to have lower damping than Pt-based alloys, making them more suitable for high density spintronic applications.

  18. 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

  19. Method of making active magnetic refrigerant, colossal magnetostriction and giant magnetoresistive materials based on Gd-Si-Ge alloys

    DOE Patents [OSTI]

    Gschneidner, Jr., Karl A.; Pecharsky, Alexandra O.; Pecharsky, Vitalij K.

    2003-07-08

    Method of making an active magnetic refrigerant represented by Gd.sub.5 (Si.sub.x Ge.sub.1-x).sub.4 alloy for 0.ltoreq.x.ltoreq.1.0 comprising placing amounts of the commercially pure Gd, Si, and Ge charge components in a crucible, heating the charge contents under subambient pressure to a melting temperature of the alloy for a time sufficient to homogenize the alloy and oxidize carbon with oxygen present in the Gd charge component to reduce carbon, rapidly solidifying the alloy in the crucible, and heat treating the solidified alloy at a temperature below the melting temperature for a time effective to homogenize a microstructure of the solidified material, and then cooling sufficiently fast to prevent the eutectoid decomposition and improve magnetocaloric and/or the magnetostrictive and/or the magnetoresistive properties thereof.

  20. Spomenka Kobe, Jozef Stefan Institut, Rare Earth Magnets in Europe |

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

    Department of Energy Spomenka Kobe, Jozef Stefan Institut, Rare Earth Magnets in Europe Spomenka Kobe, Jozef Stefan Institut, Rare Earth Magnets in Europe PDF icon Session_B4_Kobe_-_Josef_Stefan_Institut.pdf More Documents & Publications George Hadjipanayis, Chairman, Department of Physics and Astronomy, University of Delaware, Moving Beyond Neodymium-Iron Permanent Magnets for EV Motors Iowa lab gets critical materials research center Unique Lanthide-Free Motor Construction

  1. Diluted magnetic semiconductors based on Sb2-xVxTe3 | Energy Frontier

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

    Research Centers Diluted magnetic semiconductors based on Sb2-xVxTe3 Home Author: J. S. Dyck, P. Hajek, P. Lostak, C. Uher Year: 2002 Abstract: We report on a diluted magnetic semiconductor based on the Sb2Te3 tetradymite structure doped with very low concentrations of vanadium (1-3 at. %). The anomalous transport behavior and robust magnetic hysteresis loops observed in magnetotransport and magnetic measurements are experimental manifestations of the ferromagnetic state in these materials.

  2. Final Technical Report for the Energy Frontier Research Center Understanding Charge Separation and Transfer at Interfaces in Energy Materials (EFRC:CST)

    SciTech Connect (OSTI)

    Vanden Bout, David A.

    2015-09-14

    Our EFRC was founded with the vision of creating a broadly collaborative and synergistic program that would lead to major breakthroughs in the molecular-level understanding of the critical interfacial charge separation and charge transfer (CST) processes that underpin the function of candidate materials for organic photovoltaic (OPV) and electrical-energy-storage (EES) applications. Research in these energy contexts shares an imposing challenge: How can we understand charge separation and transfer mechanisms in the presence of immense materials complexity that spans multiple length scales? To address this challenge, our 50-member Center undertook a total of 28 coordinated research projects aimed at unraveling the CST mechanisms that occur at interfaces in these nanostructured materials. This rigorous multi-year study of CST interfaces has greatly illuminated our understanding of early-timescale processes (e.g., exciton generation and dissociation dynamics at OPV heterojunctions; control of Li+-ion charging kinetics by surface chemistry) occurring in the immediate vicinity of interfaces. Program outcomes included: training of 72 graduate student and postdoctoral energy researchers at 5 institutions and spanning 7 academic disciplines in science and engineering; publication of 94 peer-reviewed journal articles; and dissemination of research outcomes via 340 conference, poster and other presentations. Major scientific outcomes included: implementation of a hierarchical strategy for understanding the electronic communication mechanisms and ultimate fate of charge carriers in bulk heterojunction OPV materials; systematic investigation of ion-coupled electron transfer processes in model Li-ion battery electrode/electrolyte systems; and the development and implementation of 14 unique technologies and instrumentation capabilities to aid in probing sub-ensemble charge separation and transfer mechanisms.

  3. Cool Magnetic Molecules

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

    Conversely, introducing a magnetic field to certain materials will cause the material to heat up. This happens because, as the spins in such (paramagnetic) materials align with...

  4. Magnetic shielding

    DOE Patents [OSTI]

    Kerns, J.A.; Stone, R.R.; Fabyan, J.

    1987-10-06

    A magnetically-conductive filler material bridges the gap between a multi-part magnetic shield structure which substantially encloses a predetermined volume so as to minimize the ingress or egress of magnetic fields with respect to that volume. The filler material includes a heavy concentration of single-magnetic-domain-sized particles of a magnetically conductive material (e.g. soft iron, carbon steel or the like) dispersed throughout a carrier material which is generally a non-magnetic material that is at least sometimes in a plastic or liquid state. The maximum cross-sectional particle dimension is substantially less than the nominal dimension of the gap to be filled. An epoxy base material (i.e. without any hardening additive) low volatility vacuum greases or the like may be used for the carrier material. The structure is preferably exposed to the expected ambient magnetic field while the carrier is in a plastic or liquid state so as to facilitate alignment of the single-magnetic-domain-sized particles with the expected magnetic field lines. 3 figs.

  5. Magnetic shielding

    DOE Patents [OSTI]

    Kerns, John A. (Livermore, CA); Stone, Roger R. (Walnut Creek, CA); Fabyan, Joseph (Livermore, CA)

    1987-01-01

    A magnetically-conductive filler material bridges the gap between a multi-part magnetic shield structure which substantially encloses a predetermined volume so as to minimize the ingress or egress of magnetic fields with respect to that volume. The filler material includes a heavy concentration of single-magnetic-domain-sized particles of a magnetically conductive material (e.g. soft iron, carbon steel or the like) dispersed throughout a carrier material which is generally a non-magnetic material that is at least sometimes in a plastic or liquid state. The maximum cross-sectional particle dimension is substantially less than the nominal dimension of the gap to be filled. An epoxy base material (i.e. without any hardening additive) low volatility vacuum greases or the like may be used for the carrier material. The structure is preferably exposed to the expected ambient magnetic field while the carrier is in a plastic or liquid state so as to facilitate alignment of the single-magnetic-domain-sized particles with the expected magnetic field lines.

  6. Magnetic Refrigeration | GE Global Research

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

    Johnson, a materials scientist and project leader on GE's magnetic refrigeration project. ... materials would further improve the competitiveness of magnetic refrigeration technology. ...

  7. Magnetic shielding

    DOE Patents [OSTI]

    Kerns, J.A.; Stone, R.R.; Fabyan, J.

    1985-02-12

    A magnetically-conductive filler material bridges the gap between a multi-part magnetic shield structure which substantially encloses a predetermined volume so as to minimize the ingress or egress of magnetic fields with respect to that volume. The filler material includes a heavy concentration of single-magnetic-domain-sized particles of a magnetically conductive material (e.g. soft iron, carbon steel or the like) dispersed throughout a carrier material which is generally a non-magnetic material that is at least sometimes in a plastic or liquid state. The maximum cross-sectional particle dimension is substantially less than the nominal dimension of the gap to be filled. An epoxy base material (i.e. without any hardening additive) low volatility vacuum greases or the like may be used for the carrier material. The structure is preferably exposed to the expected ambient field while the carrier is in a plastic or liquid state so as to facilitate alignment of the single-magnetic-domain-sized particles with the expected magnetic field lines.

  8. Organic Light-Emitting Diodes (OLEDs) and Optically-Detected Magnetic Resonance (ODMR) studies on organic materials

    SciTech Connect (OSTI)

    Cai, Min

    2011-11-30

    Organic semiconductors have evolved rapidly over the last decades and currently are considered as the next-generation technology for many applications, such as organic light-emitting diodes (OLEDs) in flat-panel displays (FPDs) and solid state lighting (SSL), and organic solar cells (OSCs) in clean renewable energy. This dissertation focuses mainly on OLEDs. Although the commercialization of the OLED technology in FPDs is growing and appears to be just around the corner for SSL, there are still several key issues that need to be addressed: (1) the cost of OLEDs is very high, largely due to the costly current manufacturing process; (2) the efficiency of OLEDs needs to be improved. This is vital to the success of OLEDs in the FPD and SSL industries; (3) the lifetime of OLEDs, especially blue OLEDs, is the biggest technical challenge. All these issues raise the demand for new organic materials, new device structures, and continued lower-cost fabrication methods. In an attempt to address these issues, we used solution-processing methods to fabricate highly efficient small molecule OLEDs (SMOLEDs); this approach is costeffective in comparison to the more common thermal vacuum evaporation. We also successfully made efficient indium tin oxide (ITO)-free SMOLEDs to further improve the efficiency of the OLEDs. We employed the spin-dependent optically-detected magnetic resonance (ODMR) technique to study the luminescence quenching processes in OLEDs and organic materials in order to understand the intrinsic degradation mechanisms. We also fabricated polymer LEDs (PLEDs) based on a new electron-accepting blue-emitting polymer and studied the effect of molecular weight on the efficiency of PLEDs. All these studies helped us to better understand the underlying relationship between the organic semiconductor materials and the OLEDs performance, and will subsequently assist in further enhancing the efficiency of OLEDs. With strongly improved device performance (in addition to other OLEDs' attributes such as mechanical flexibility and potential low cost), the OLED technology is promising to successfully compete with current technologies, such as LCDs and inorganic LEDs.

  9. Autonomic Materials for Smarter, Safer, Longer-Lasting Batteries (A "Life at the Frontiers of Energy Research" contest entry from the 2011 Energy Frontier Research Centers (EFRCs) Summit and Forum)

    ScienceCinema (OSTI)

    Thackeray, Michael (Director, Center for Electrical Energy Storage); CEES Staff

    2011-11-02

    'Autonomic Materials for Smarter, Safer, Longer-Lasting Batteries' was submitted by the Center for Electrical Energy Storage (CEES) to the 'Life at the Frontiers of Energy Research' video contest at the 2011 Science for Our Nation's Energy Future: Energy Frontier Research Centers (EFRCs) Summit and Forum. Twenty-six EFRCs created short videos to highlight their mission and their work. CEES, an EFRC directed by Michael Thackery at Argonne National Laboratory is a partnership of scientists from three institutions: ANL (lead), Northwestern University, and the University of Illinois at Urbana-Champaign. The Office of Basic Energy Sciences in the U.S. Department of Energy's Office of Science established the 46 Energy Frontier Research Centers (EFRCs) in 2009. These collaboratively-organized centers conduct fundamental research focused on 'grand challenges' and use-inspired 'basic research needs' recently identified in major strategic planning efforts by the scientific community. The overall purpose is to accelerate scientific progress toward meeting the nation's critical energy challenges. The mission of the Center for Electrical Energy Storage is 'to acquire a fundamental understanding of interfacial phenomena controlling electrochemical processes that will enable dramatic improvements in the properties and performance of energy storage devices, notable Li ion batteries.' Research topics are: electrical energy storage, batteries, battery electrodes, electrolytes, adaptive materials, interfacial characterization, matter by design; novel materials synthesis, charge transport, and defect tolerant materials.

  10. The Nature of the Distinctive Microscopic Features in R5(SixGe1-x)4 Magnetic Refrigeration Materials

    SciTech Connect (OSTI)

    Ozan Ugurlu

    2006-05-01

    Magnetic refrigeration is a promising technology that offers a potential for high energy efficiency. The giant magnetocaloric effect of the R{sub 5}(Si{sub x}, Ge{sub 1-x}){sub 4} alloys (where R=rare-earth and O {le} x {le} 1), which was discovered in 1997, make them perfect candidates for magnetic refrigeration applications. In this study the microstructures of Gd{sub 5}(Si{sub x}Ge{sub 1-x}){sub 4} alloys have been characterized using electron microscopy techniques, with the focus being on distinctive linear features first examined in 1999. These linear features have been observed in R{sub 5}(Si{sub x}, Ge{sub 1-x}){sub 4} alloys prepared from different rare-earths (Gd, Tb, Dy and Er) with different crystal structures (Gd{sub 5}Si{sub 4}-type orthorhombic, monoclinic and Gd{sub 5}Ge{sub 4}-type orthorhombic). Systematic scanning electron microscope studies revealed that these linear features are actually thin-plates, which grow along specific directions in the matrix material. The crystal structure of the thin-plates has been determined as hexagonal with lattice parameters a=b=8.53 {angstrom} and c=6.40 {angstrom} using selected area diffraction (SAD). Energy dispersive spectroscopy analysis, carried out in both scanning and transmission electron microscopes, showed that the features have a composition approximating to R{sub 5}(Si{sub x},Ge{sub 1-x}){sub 3}.phase. Orientation relationship between the matrix and the thin-plates has been calculated as [- 1010](1-211){sub p}//[010](10-2){sub m}. The growth direction of the thin plates are calculated as (22 0 19) and (-22 0 19) by applying the Ag approach of Zhang and Purdy to the SAD patterns of this system. High Resolution TEM images of the Gd{sub 5}Ge{sub 4} were used to study the crystallographic relationship. A terrace-ledge structure was observed at the interface and a 7{sup o} rotation of the reciprocal lattices with respect to each other, consistent with the determined orientation relationship, was noted. Both observations are consistent with the stated hypothesis that the growth direction of the thin-plates is parallel to an invariant line direction. Based on the terrace-ledge structure of the thin-plate interface a displacive-diffusional growth mechanism has been proposed to explain the rapid formation of the R{sub 5}(Si{sub x},Ge{sub 1-x}){sub 3} plates.

  11. Magnetic Materials (MM)

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

    Contacts Calendars Community Scientific Access Site Access Training Science & Education Science & Research Highlights Conferences Seminars Publications Annual Reports APS Upgrade...

  12. Magnetic Materials Group - Staff

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

    davegag@aps.anl.gov Visiting Scientists, Post-Docs, & Students Lawrie Skinner Rick Weber Vladimir Stoica Lawrie Skinner Research Asst. Prof. Stony Brook 432B003 (630)...

  13. Polymer Engineering Center

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

    Polymer Engineering Center University of Wisconsin-Madison Experimental and Numerical Studies of the Temperature Field in Selective Laser Sintering to Improve Shrinkage and Warpage Prediction Prof. Dr.-Ing. Natalie Rudolph Polymer Engineering Center Department of Mechanical Engineering University of Wisconsin-Madison 1513 University Ave Madison, WI 53706 Advanced Qualification of Additive Manufacturing Materials Workshop, July 20-21, 2015 in Santa Fe, NM Polymer Engineering Center University of

  14. Center for Advanced Photophysics | About The Center

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

    Victor Klimov - Center for Advanced Solar Photophysics Message from Center Director The solution to the global energy challenge requires revolutionary breakthroughs in areas such as the conversion of solar energy into electrical power or chemical fuels. The principles for capturing solar light and converting it into electrical charges have not changed for more than four decades. Previous advances in this area have mostly relied on iterative improvements in material quality and/or device

  15. Energy Frontier Research Centers

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

    Welcome US DOE Energy Frontier Research Center The Center for Revolutionary Materials for Solid State Energy Conversion will focus on solid state conversion of thermal energy to useful electrical power, both to increase the efficiency of traditional industrial energy processes and to tap new unused sources of energy such as solar thermal. Additionally materials with enhanced thermoelectric properties will find application in high efficiency, environmentally benign climate control systems. Our

  16. LSU EFRC - Center for Atomic Level Catalyst Design - Contact...

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

    ... interface properties of magnetite for spintronics", Chapter in Magnetic Materials, Intech ... interface properties of magnetite for spintronics", Chapter in Magnetic Materials, Intech ...

  17. Emery Station Operations Center

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

    Emery Station Operations Center

  18. Regenerator for Magnetic Refrigerants - Energy Innovation Portal

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

    Magnetic refrigeration is being investigated as an alternative to conventional gas ... materials may thus have improved properties for magnetic refrigeration. ...

  19. Vehicle Technologies Office Merit Review 2015: GATE Center of Excellence at UAB for Lightweight Materials and Manufacturing for Automotive, Truck and Mass Transit

    Broader source: Energy.gov [DOE]

    Presentation given by University of Alabama Birmingham at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about GATE Center...

  20. Vehicle Technologies Office Merit Review 2014: GATE Center of Excellence at UAB for Lightweight Materials and Manufacturing for Automotive, Truck and Mass Transit

    Broader source: Energy.gov [DOE]

    Presentation given by University of Alabama at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about GATE Center of...

  1. Center for Functional Nanomaterials

    ScienceCinema (OSTI)

    BNL

    2009-09-01

    Staff from Brookhaven's new Center for Functional Nanomaterials (CFN) describe how this advanced facility will focus on the development and understanding of nanoscale materials. The CFN provides state-of-the-art capabilities for the fabrication and study of nanoscale materials, with an emphasis on atomic-level tailoring to achieve desired properties and functions. The overarching scientific theme of the CFN is the development and understanding of nanoscale materials that address the Nation's challenges in energy security.

  2. 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,...

  3. Contact us | Energy Frontier Research Centers

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

    Contact us Home Director Donald T Morelli Professor of Materials Science and Director, MSUDOE Energy Frontier Research Center Department of Chemical Engineering & Materials...

  4. Energy Security Center

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

    Energy Security Center Energy Security Center Developing new ideas for reliable, secure, and sustainable carbon neutral energy solutions for the nation-the portal to LANL's diverse energy security research enterprise. Contact Leader Steven Buelow (505) 663 5629 Email Program Administrator Jutta Kayser (505) 663-5649 Email Research focus areas Materials and concepts for clean energy Science for renewable energy sources Superconducting cables Energy storage Fuel cells Mitigating impacts of global

  5. LANSCE | Lujan Center | Highlights

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

    The Lujan Center: Science & People The Lujan Center, Science & People April 2014 In This Issue: * Olivier Gourdon: A crystallographer keen on showing off the revealing properties of neutrons *Seeking design rules for efficient lighting sources * Rate-dependent deformation mechanisms in beryllium * Improved understanding of a semiconductor used in infrared detectors * Mike Fitzsimmons elected NNSA Fellow * Pressure tuning: a new approach for making zero thermal expansion materials *

  6. Center for Nonlinear Studies

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

    About Contact Courses Summer School Engineering Information Science, Technology Geophysics, Planetary Physics, Signatures Applied Geophysical Experiences Materials Design Calendar NSEC » Center for Nonlinear Studies Center for Nonlinear Studies Serving as an interface between mission critical research at LANL and the outside research community. Contact Director Robert Ecke (505) 667-6733 Email Deputy Director Aric Hagberg (505) 665-4958 Email Executive Administrator Elissa (Ellie) Vigil (505)

  7. Help Center

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

    Los Alamos National Laboratory Advanced Simulation and Computing Menu Events Partnerships Help Center Events Partnerships Help Center Videos Advanced Simulation and Computing Program » Help Center Computing Help Center Help hotlines, hours of operation, training, technical assistance, general information Los Alamos National Laboratory Hours: Monday through Friday, 8:00 a.m. - noon, 1:00-5:00 p.m. Mountain time Telephone: (505) 665-4444 option 3 Fax: (505) 665-6333 E-mail: consult@lanl.gov 24

  8. operations center

    National Nuclear Security Administration (NNSA)

    servers and other critical Operations Center equipment

  9. Independent air supply system filtered to protect against biological and radiological agents (99.7%).
  10. <...

  11. Effect of La{sub 2}O{sub 3}, CoO, Cr{sub 2}O{sub 3} and MoO{sub 3} nucleating agents on crystallization behavior and magnetic properties of ferromagnetic glass-ceramic in the system Fe{sub 2}O{sub 3}{center_dot}CaO{center_dot}ZnO{center_dot}SiO{sub 2}

    SciTech Connect (OSTI)

    Abdel-Hameed, Salwa A.M.; Elwan, Rawhia L.

    2012-05-15

    Highlights: Black-Right-Pointing-Pointer Crystallization of magnetic glass ceramic with different nucleating agents. Black-Right-Pointing-Pointer The effect of La{sub 2}O{sub 3}, CoO, Cr{sub 2}O{sub 3} and MoO{sub 3} as nucleating agents was studied. Black-Right-Pointing-Pointer XRD for as prepared samples revealed crystallization of pure magnetite. Black-Right-Pointing-Pointer Heat treatment revealed minor calcium silicate, hematite and cristobalite. Black-Right-Pointing-Pointer TEM revealed crystallization of crystallite size in the range 50-100 nm. -- Abstract: Preparation and characterization of ferromagnetic glass ceramic in the system Fe{sub 2}O{sub 3}{center_dot}CaO{center_dot}ZnO{center_dot}SiO{sub 2} with different nucleating agents was studied. The effect of La{sub 2}O{sub 3}, CoO, Cr{sub 2}O{sub 3} and MoO{sub 3} as nucleating agents was investigated. Differential thermal analysis; X-ray diffraction and transmission electron microscope were used to investigate thermal behavior, sequence of crystallization and microstructure of the samples. XRD analysis for as prepared samples revealed the crystallization of single magnetite phase. Heat treatment at 900 Degree-Sign C/2 h revealed the appearance of minor amounts of calcium silicate, hematite and cristobalite beside magnetite. TEM revealed crystallization of crystallite size in the range 50-100 nm. Lattice parameters, cell volume and crystallite size were stimulated from XRD data. Magnetic properties of quenched samples were measured under 20 kG.

  12. Facility for low-temperature spin-polarized-scanning tunneling microscopy studies of magnetic/spintronic materials prepared in situ by nitride molecular beam epitaxy

    SciTech Connect (OSTI)

    Lin, Wenzhi; Foley, Andrew; Alam, Khan; Wang, Kangkang; Liu, Yinghao; Chen, Tianjiao; Pak, Jeongihm; Smith, Arthur R.

    2014-04-15

    Based on the interest in, as well as exciting outlook for, nitride semiconductor based structures with regard to electronic, optoelectronic, and spintronic applications, it is compelling to investigate these systems using the powerful technique of spin-polarized scanning tunneling microscopy (STM), a technique capable of achieving magnetic resolution down to the atomic scale. However, the delicate surfaces of these materials are easily corrupted by in-air transfers, making it unfeasible to study them in stand-alone ultra-high vacuum STM facilities. Therefore, we have carried out the development of a hybrid system including a nitrogen plasma assisted molecular beam epitaxy/pulsed laser epitaxy facility for sample growth combined with a low-temperature, spin-polarized scanning tunneling microscope system. The custom-designed molecular beam epitaxy growth system supports up to eight sources, including up to seven effusion cells plus a radio frequency nitrogen plasma source, for epitaxially growing a variety of materials, such as nitride semiconductors, magnetic materials, and their hetero-structures, and also incorporating in situ reflection high energy electron diffraction. The growth system also enables integration of pulsed laser epitaxy. The STM unit has a modular design, consisting of an upper body and a lower body. The upper body contains the coarse approach mechanism and the scanner unit, while the lower body accepts molecular beam epitaxy grown samples using compression springs and sample skis. The design of the system employs two stages of vibration isolation as well as a layer of acoustic noise isolation in order to reduce noise during STM measurements. This isolation allows the system to effectively acquire STM data in a typical lab space, which during its construction had no special and highly costly elements included, (such as isolated slabs) which would lower the environmental noise. The design further enables tip exchange and tip coating without breaking vacuum, and convenient visual access to the sample and tip inside a superconducting magnet cryostat. A sample/tip handling system is optimized for both the molecular beam epitaxy growth system and the scanning tunneling microscope system. The sample/tip handing system enables in situ STM studies on epitaxially grown samples, and tip exchange in the superconducting magnet cryostat. The hybrid molecular beam epitaxy and low temperature scanning tunneling microscopy system is capable of growing semiconductor-based hetero-structures with controlled accuracy down to a single atomic-layer and imaging them down to atomic resolution.

  13. Mesoporous Co{sub 3}O{sub 4} nanostructured material synthesized by one-step soft-templating: A magnetic study

    SciTech Connect (OSTI)

    Poyraz, Altug S.; Kuo, Chung-Hao; Li, Nan; Hines, William A. Perry, David M.; Suib, Steven L.

    2014-03-21

    A combined magnetization and zero-field {sup 59}Co spin-echo nuclear magnetic resonance (NMR) study has been carried out on one member of a recently developed class of highly ordered mesoporous nanostructured materials, mesoporous Co{sub 3}O{sub 4} (designated UCT-8, University of Connecticut, mesoporous materials). The material was synthesized using one-step soft-templating by an inverse micelles packing approach. Characterization of UCT-8 by powder x-ray diffraction and electron microscopy reveals that the mesostructure consists of random close-packed Co{sub 3}O{sub 4} nanoparticles ??12?nm in diameter. The N{sub 2} sorption isotherm for UCT-8, which is type IV with a type H1 hysteresis loop, yields a 134 m{sup 2}/g BET surface area and a 7.7?nm BJH desorption pore diameter. The effect of heat treatment on the structure is discussed. The antiferromagnetic Co{sub 3}O{sub 4} nanoparticles have a Nel temperature T{sub N}?=?27?K, somewhat lower than the bulk. A fit to the Curie-Weiss law over the temperature range 75?K???T???300?K yields an effective magnetic moment of ?{sub eff}?=?4.36??{sub B} for the Co{sup 2+} ions, indicative of some orbital contribution, and a Curie-Weiss temperature ??=??93.5?K, consistent with antiferromagnetic ordering. The inter-sublattice and intra-sublattice exchange constants for the Co{sup 2+} ions are J{sub 1}/k{sub B}?=?(?)4.75?K and J{sub 2}/k{sub B}?=?(?)0.87?K, respectively, both corresponding to antiferromagnetic coupling. The presence of uncompensated surface spins is observed below T{sub N} with shifts in the hysteresis loops, i.e., an exchange-bias effect. The {sup 59}Co NMR spectrum for UCT-8, which is attributed to Co{sup 2+} ions at the tetrahedral A sites, is asymmetrically broadened with a peak at ?55?MHz (T?=?4.2?K). Since there is cubic symmetry at the A-sites, the broadening is indicative of a magnetic field distribution due to the uncompensated surface spins. The spectrum is consistent with antiferromagnetically ordered particles that are nanometer in size and single domain.

  14. Y-12 History Center | Y-12 National Security Complex

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

    Y-12 History Center Y-12 History Center Located within the New Hope Center at Y-12, the History Center houses a fascinating collection of informational materials and historical...

  15. Magnetic nanohole superlattices

    DOE Patents [OSTI]

    Liu, Feng

    2013-05-14

    A magnetic material is disclosed including a two-dimensional array of carbon atoms and a two-dimensional array of nanoholes patterned in the two-dimensional array of carbon atoms. The magnetic material has long-range magnetic ordering at a temperature below a critical temperature Tc.

  16. Magnetically attached sputter targets

    DOE Patents [OSTI]

    Makowiecki, D.M.; McKernan, M.A.

    1994-02-15

    An improved method and assembly for attaching sputtering targets to cathode assemblies of sputtering systems which includes a magnetically permeable material is described. The magnetically permeable material is imbedded in a target base that is brazed, welded, or soldered to the sputter target, or is mechanically retained in the target material. Target attachment to the cathode is achieved by virtue of the permanent magnets and/or the pole pieces in the cathode assembly that create magnetic flux lines adjacent to the backing plate, which strongly attract the magnetically permeable material in the target assembly. 11 figures.

  17. Fundamental Scientific Problems in Magnetic Recording

    SciTech Connect (OSTI)

    Schulthess, T.C.; Miller, M.K.

    2007-06-27

    Magnetic data storage technology is presently leading the high tech industry in advancing device integration--doubling the storage density every 12 months. To continue these advancements and to achieve terra bit per inch squared recording densities, new approaches to store and access data will be needed in about 3-5 years. In this project, collaboration between Oak Ridge National Laboratory (ORNL), Center for Materials for Information Technology (MINT) at University of Alabama (UA), Imago Scientific Instruments, and Seagate Technologies, was undertaken to address the fundamental scientific problems confronted by the industry in meeting the upcoming challenges. The areas that were the focus of this study were to: (1) develop atom probe tomography for atomic scale imaging of magnetic heterostructures used in magnetic data storage technology; (2) develop a first principles based tools for the study of exchange bias aimed at finding new anti-ferromagnetic materials to reduce the thickness of the pinning layer in the read head; (3) develop high moment magnetic materials and tools to study magnetic switching in nanostructures aimed at developing improved writers of high anisotropy magnetic storage media.

  18. Comparison of the order of magnetic phase transitions in several magnetocaloric materials using the rescaled universal curve, Banerjee and mean field theory criteria

    SciTech Connect (OSTI)

    Burrola-Gándara, L. A. Santillan-Rodriguez, C. R.; Rivera-Gomez, F. J.; Saenz-Hernandez, R. J.; Botello-Zubiate, M. E.; Matutes-Aquino, J. A.

    2015-05-07

    Magnetocaloric materials with second order phase transition near the Curie temperature can be described by critical phenomena theory. In this theory, scaling, universality, and renormalization are key concepts from which several phase transition order criteria are derived. In this work, the rescaled universal curve, Banerjee and mean field theory criteria were used to make a comparison for several magnetocaloric materials including pure Gd, SmCo{sub 1.8}Fe{sub 0.2}, MnFeP{sub 0.46}As{sub 0.54}, and La{sub 0.7}Ca{sub 0.15}Sr{sub 0.15}MnO{sub 3}. Pure Gd, SmCo{sub 1.8}Fe{sub 0.2}, and La{sub 0.7}Ca{sub 0.15}Sr{sub 0.15}MnO{sub 3} present a collapse of the rescaled magnetic entropy change curves into a universal curve, which indicates a second order phase transition; applying Banerjee criterion to H/σ vs σ{sup 2} Arrot plots and the mean field theory relation |ΔS{sub M}| ∝ (μ{sub 0}H/T{sub c}){sup 2/3} for the same materials also determines a second order phase transition. However, in the MnFeP{sub 0.46}As{sub 0.54} sample, the Banerjee criterion applied to the H/σ vs σ{sup 2} Arrot plot indicates a first order magnetic phase transition, while the mean field theory prediction for a second order phase transition, |ΔS{sub M}| ∝ (μ{sub 0}H/T{sub c}){sup 2/3}, describes a second order behavior. Also, a mixture of first and second order behavior was indicated by the rescaled universal curve criterion. The diverse results obtained for each criterion in MnFeP{sub 0.46}As{sub 0.54} are apparently related to the magnetoelastic effect and to the simultaneous presence of weak and strong magnetism in Fe (3f) and Mn (3g) alternate atomic layers, respectively. The simultaneous application of the universal curve, the Banerjee and the mean field theory criteria has allowed a better understanding about the nature of the order of the phase transitions in different magnetocaloric materials.

  19. Facilities and Centers | Argonne National Laboratory

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

    Facilities and Centers Center for Electrical Energy Storage Argonne Tandem Linac Accelerator System Argonne-Northwestern Solar Energy Research Center Center for Nanoscale Materials Facilities & Centers Argonne's Physical Sciences and Engineering Directorate is home to several different state-of-the-art national user facilities as well as two Energy Frontier Research Centers. The Argonne Tandem Linac Accelerator System (ATLAS) is a leading user facility for nuclear structure research in the

  20. Origin of the positive spin-12 photoluminescence-detected magnetic resonance in π-conjugated materials and devices

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

    Chen, Ying; Cai, Min; Hellerich, Emily; Shinar, Ruth; Shinar, Joseph

    2015-09-02

    The spin-1/2 single-modulation (SM) and double-modulation (DM) photoluminescence (PL) detected magnetic resonance (PLDMR) in poly(2-methoxy-5-(2'-ethyl)–hexoxy-1,4- phenylene vinylene) (MEH-PPV) films and poly(3-hexylthiophene) (P3HT) films is described, analyzed, and discussed. In particular, the models based on spin-dependent recombination of charge pairs (SDR) and triplet-polaron quenching (TPQ) are evaluated. By analyzing the dependence of the resonance amplitude on the microwave chopping (modulation) frequency using rate equations, it is demonstrated that the TPQ model can well explain the observed resonance behavior, while SDR model cannot reproduce the results of the observed DM-PLDMR. As a result, the observed spin-1/2 PLDMR is assigned to TPQ rathermore » than SDR, even though the latter may also be present.« less

  21. Cool Magnetic Molecules

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

    Cool Magnetic Molecules Cool Magnetic Molecules Print Wednesday, 25 May 2011 00:00 Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost

  22. A HUMAN RELIABILITY-CENTERED APPROACH TO THE DEVELOPMENT OF JOB AIDS FOR REVIEWERS OF MEDICAL DEVICES THAT USE RADIOLOGICAL BYPRODUCT MATERIALS.

    SciTech Connect (OSTI)

    COOPER, S.E.; BROWN, W.S.; WREATHALL, J.

    2005-02-02

    The U.S. Nuclear Regulatory Commission (NRC) is engaged in an initiative to risk-inform the regulation of byproduct materials. Operating experience indicates that human actions play a dominant role in most of the activities involving byproduct materials, which are radioactive materials other than those used in nuclear power plants or in weapons production, primarily for medical or industrial purposes. The overall risk of these activities is strongly influenced by human performance. Hence, an improved understanding of human error, its causes and contexts, and human reliability analysis (HRA) is important in risk-informing the regulation of these activities. The development of the human performance job aids was undertaken by stages, with frequent interaction with the prospective users. First, potentially risk significant human actions were identified based on reviews of available risk studies for byproduct material applications and of descriptions of events for byproduct materials applications that involved potentially significant human actions. Applications from the medical and the industrial domains were sampled. Next, the specific needs of the expected users of the human performance-related capabilities were determined. To do this, NRC headquarters and region staff were interviewed to identify the types of activities (e.g., license reviews, inspections, event assessments) that need HRA support and the form in which such support might best be offered. Because the range of byproduct uses regulated by NRC is so broad, it was decided that initial development of knowledge and tools would be undertaken in the context of a specific use of byproduct material, which was selected in consultation with NRC staff. Based on needs of NRC staff and the human performance related characteristics of the context chosen, knowledge resources were then compiled to support consideration of human performance issues related to the regulation of byproduct materials. Finally, with information sources and an application context identified, a set of strawman job aids was developed, which was then presented to prospective users for critique and comment. Work is currently under way to develop training materials and refine the job aids in preparation for a pilot evaluation.

  1. Magnet design considerations for Fusion Nuclear Science Facility

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

    Zhai, Yuhu; Kessel, Chuck; El-guebaly, Laila; Titus, Peter

    2016-02-25

    The Fusion Nuclear Science Facility (FNSF) is a nuclear confinement facility to provide a fusion environment with components of the reactor integrated together to bridge the technical gaps of burning plasma and nuclear science between ITER and the demonstration power plant (DEMO). Compared to ITER, the FNSF is smaller in size but generates much higher magnetic field, 30 times higher neutron fluence with 3 orders of magnitude longer plasma operation at higher operating temperatures for structures surrounding the plasma. Input parameters to the magnet design from system code analysis include magnetic field of 7.5 T at the plasma center withmore » plasma major radius of 4.8 m and minor radius of 1.2 m, and a peak field of 15.5 T on the TF coils for FNSF. Both low temperature superconductor (LTS) and high temperature superconductor (HTS) are considered for the FNSF magnet design based on the state-of-the-art fusion magnet technology. The higher magnetic field can be achieved by using the high performance ternary Restack Rod Process (RRP) Nb3Sn strands for toroidal field (TF) magnets. The circular cable-in-conduit conductor (CICC) design similar to ITER magnets and a high aspect ratio rectangular CICC design are evaluated for FNSF magnets but low activation jacket materials may need to be selected. The conductor design concept and TF coil winding pack composition and dimension based on the horizontal maintenance schemes are discussed. Neutron radiation limits for the LTS and HTS superconductors and electrical insulation materials are also reviewed based on the available materials previously tested. As a result, the material radiation limits for FNSF magnets are defined as part of the conceptual design studies for FNSF magnets.« less

  2. Ames Lab 101: Magnetic Refrigeration

    ScienceCinema (OSTI)

    Pecharsky, Vitalij

    2013-03-01

    Vitalij Pecharsky, distinguished professor of materials science and engineering, discusses his research in magnetic refrigeration at Ames Lab.

  3. Ames Lab 101: Magnetic Refrigeration

    SciTech Connect (OSTI)

    Pecharsky, Vitalij

    2011-01-01

    Vitalij Pecharsky, distinguished professor of materials science and engineering, discusses his research in magnetic refrigeration at Ames Lab.

  4. Center for Advanced Solar Photophysics

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

    Welcome to the Center for Advanced Solar Photophysics (CASP) Solution-processed solar cells The goal of this center is to explore and exploit the unique physics of nanostructured materials to boost the efficiency of solar energy conversion through novel light-matter interactions, controlled excited-state dynamics, and engineered carrier-carrier coupling. Examples of phenomena that are studied in the center include field enhancement in metal nanostructures for improved light-harvesting and

  5. Materials Videos

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

    Materials Videos Materials

  6. Joint China-United States Report for Year 1 Insulation Materials and Systems Project Area Clean Energy Research Center Building Energy Efficiency (CERC-BEE)

    SciTech Connect (OSTI)

    Stovall, Therese K; Biswas, Kaushik; Song, Bo; Zhang, Sisi

    2012-08-01

    In November of 2009, the presidents of China and the U.S. announced the establishment of the Clean Energy Research Center (CERC). This broad research effort is co-funded by both countries and involves a large number of research centers and universities in both countries. One part of this program is focused on improving the energy efficiency of buildings. One portion of the CERC-BEE was focused on building insulation systems. The research objective of this effort was to Identify and investigate candidate high performance fire resistant building insulation technologies that meet the goal of building code compliance for exterior wall applications in green buildings in multiple climate zones. A Joint Work Plan was established between researchers at the China Academy of Building Research and Oak Ridge National Laboratory. Efforts in the first year under this plan focused on information gathering. The objective of this research program is to reduce building energy use in China via improved building insulation technology. In cold regions in China, residents often use inefficient heating systems to provide a minimal comfort level within inefficient buildings. In warmer regions, air conditioning has not been commonly used. As living standards rise, energy consumption in these regions will increase dramatically unless significant improvements are made in building energy performance. Previous efforts that defined the current state of the built environment in China and in the U.S. will be used in this research. In countries around the world, building improvements have typically followed the implementation of more stringent building codes. There have been several changes in building codes in both the U.S. and China within the last few years. New U.S. building codes have increased the amount of wall insulation required in new buildings. New government statements from multiple agencies in China have recently changed the requirements for buildings in terms of energy efficiency and fire safety. A related issue is the degree to which new standards are adopted and enforced. In the U.S., standards are developed using a consensus process, and local government agencies are free to implement these standards or to ignore them. For example, some U.S. states are still using 2003 versions of the building efficiency standards. There is also a great variation in the degree to which the locally adopted standards are enforced in different U.S. cities and states. With a more central process in China, these issues are different, but possible impacts of variable enforcement efficacy may also exist. Therefore, current building codes in China will be compared to the current state of building fire-safety and energy-efficiency codes in the U.S. and areas for possible improvements in both countries will be explored. In particular, the focus of the applications in China will be on green buildings. The terminology of 'green buildings' has different meanings to different audiences. The U.S. research is interested in both new, green buildings, and on retrofitting existing inefficient buildings. An initial effort will be made to clarify the scope of the pertinent wall insulation systems for these applications.

  7. LANSCE | Lujan Center | Instruments | SMARTS

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

    Spectrometer for Materials Research at Temperature and Stress | SMARTS Materials in Extreme Environments and Geoscience The SMARTS is a third-generation neutron diffractometer optimized for the study of engineering materials. It was funded by DOE and constructed at the Lujan Center, coming online in the summer of 2001. SMARTS provides an exciting range of capabilities for studying polycrystalline materials focusing on two areas: the measurement of deformation under stress and extreme

  8. Feed Materials Production Center. Final phase-in report volume 11 of 15 waste management, October 25, 1985--December 31, 1985

    SciTech Connect (OSTI)

    Watts, R.E.

    1986-01-17

    This volume of the Transition Final Report provides the findings, recommendations and corrective actions for the Waste Management areas developed during the phase-in actions by Westinghouse Materials Company (WMCO). The objective is to provide a summary of the studies and investigations performed by the WMCO Company during the transition period. The Waste Management effort at FMPC was expanded in 1984 when a separate group was formed within the NLO organization. This is considered to be an area where significant increase in priority and effort must be applied to resolve waste management problems and to bring the site in conformity to regulations and the Environmental Health/Safety Standards. During the transition, there was a comprehensive investigation in all areas of air, liquid and solid waste management for nuclear, chemical and conventional wastes. Not all of these investigations are documented in this report, but the information gathered was used in the development of the budgets (cost accounts), programs, and organizational planning.

  9. Comments on "Guiding Center Plasma Models in Three D

    SciTech Connect (OSTI)

    J.A. Krommes

    2009-05-29

    Recent assertions that guiding-center theory breaks down at second order for 3D magnetic fields with nonzero torsion are argued to be incorrect. __________________________________________________

  10. Staff > Center Alumni > The Energy Materials Center at Cornell

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

    River National Lab ttt45@cornell.edu List Image Giang Vo Research Investigator - Dupont gdv8@cornell.edu List Image Deli Wang Professor - Huazhong University of Science &...

  11. Energy Frontier Research Center Center for Materials Science...

    Office of Scientific and Technical Information (OSTI)

    finite temperatures approaches will be required for handling this strongly correlated nuclear fuel. * PDOS measurements performed on polycrystalline samples have identified the...

  12. 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...

  13. Center for Energy Nanoscience at USC

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

    Photovoltaics The Center for Energy Nanoscience (CEN) synthesizes a variety of semiconductor nanostructure materials to exploit their unique geometrical, electrical, and optical...

  14. National Energy Research Scientific Computing Center

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

    3,072 Material Simulations in Joint Center for Artificial Photosynthesis (JCAP) PI: Frances A. Houle, Lawrence Berkeley National Laboratory Edison 3,072 LLNL MFE Supercomputing...

  15. Center for Electrochemical Energy Science | Argonne National...

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

    Energy Science Research Program Publications & Presentations News An Energy Frontier Research Center Exploring the electrochemical reactivity of oxide materials and their...

  16. Center for Inverse Design: Inverse Design Approach

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

    Inverse Design Approach This page describes the inverse materials design methodology used by the Center for Inverse Design, which integrates and combines the following: (1) theory,...

  17. Electron Microscopy Center | Argonne National Laboratory

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

    Center Group (EMC) develops and maintains unique capabilities for electron beam characterization and applies those capabilities to solve materials challenges. EMC...

  18. Cool Magnetic Molecules

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

    Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability

  19. Cool Magnetic Molecules

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

    Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability

  20. Cool Magnetic Molecules

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

    Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability

  1. Cool Magnetic Molecules

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

    Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability

  2. Cool Magnetic Molecules

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

    Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability

  3. Cool Magnetic Molecules

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

    Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability

  4. Magnetic Correlations in the Quasi-Two-Dimensional Semiconducting...

    Office of Scientific and Technical Information (OSTI)

    dramatically. Establishing the nature of the bulk material's magnetism is necessary for understanding the thin-film magnetic behavior and the material's possible applications. ...

  5. National High Magnetic Field Laboratory moves closer

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

    researchers to carefully tune material parameters while perfectly reproducing the non-invasive magnetic field. Such high magnetic fields confine electrons to nanometer scale...

  6. Disorder-Induced Microscopic Magnetic Memory

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

    Disorder-Induced Microscopic Magnetic Memory Print The magnetic-recording industry deliberately introduces carefully controlled disorder into its materials to obtain the desired...

  7. Regenerator for Magnetic Refrigerants - Energy Innovation Portal

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

    Description Magnetic refrigeration is being investigated as an alternative to conventional ... These materials may thus have improved properties for magnetic refrigeration. As part of ...

  8. Nanocomposite Magnets: Transformational Nanostructured Permanent Magnets

    SciTech Connect (OSTI)

    2010-10-01

    Broad Funding Opportunity Announcement Project: GE is using nanomaterials technology to develop advanced magnets that contain fewer rare earth materials than their predecessors. Nanomaterials technology involves manipulating matter at the atomic or molecular scale, which can represent a stumbling block for magnets because it is difficult to create a finely grained magnet at that scale. GE is developing bulk magnets with finely tuned structures using iron-based mixtures that contain 80% less rare earth materials than traditional magnets, which will reduce their overall cost. These magnets will enable further commercialization of HEVs, EVs, and wind turbine generators while enhancing U.S. competitiveness in industries that heavily utilize these alternatives to rare earth minerals.

  9. 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

  10. Magnetic infrasound sensor

    DOE Patents [OSTI]

    Mueller, Fred M. (Los Alamos, NM); Bronisz, Lawrence (Los Alamos, NM); Grube, Holger (Los Alamos, NM); Nelson, David C. (Santa Fe, NM); Mace, Jonathan L. (Los Alamos, NM)

    2006-11-14

    A magnetic infrasound sensor is produced by constraining a permanent magnet inside a magnetic potential well above the surface of superconducting material. The magnetic infrasound sensor measures the position or movement of the permanent magnet within the magnetic potential well, and interprets the measurements. Infrasound sources can be located and characterized by combining the measurements from one or more infrasound sensors. The magnetic infrasound sensor can be tuned to match infrasound source types, resulting in better signal-to-noise ratio. The present invention can operate in frequency modulation mode to improve sensitivity and signal-to-noise ratio. In an alternate construction, the superconductor can be levitated over a magnet or magnets. The system can also be driven, so that time resolved perturbations are sensed, resulting in a frequency modulation version with improved sensitivity and signal-to-noise ratio.

  11. Magnet pole tips

    DOE Patents [OSTI]

    Thorn, C.E.; Chasman, C.; Baltz, A.J.

    1981-11-19

    An improved magnet more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

  12. Magnet pole tips

    DOE Patents [OSTI]

    Thorn, Craig E. (Wading River, NY); Chasman, Chellis (Setauket, NY); Baltz, Anthony J. (Coram, NY)

    1984-04-24

    An improved magnet which more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

  13. Dependence of beam emittance on plasma electrode temperature and rf-power, and filter-field tuning with center-gapped rod-filter magnets in J-PARC rf-driven H{sup ?} ion source

    SciTech Connect (OSTI)

    Ueno, A. Koizumi, I.; Ohkoshi, K.; Ikegami, K.; Takagi, A.; Yamazaki, S.; Oguri, H.

    2014-02-15

    The prototype rf-driven H{sup ?} ion-source with a nickel plated oxygen-free-copper (OFC) plasma chamber, which satisfies the Japan Proton Accelerator Research Complex (J-PARC) 2nd stage requirements of a H{sup ?} ion beam current of 60 mA within normalized emittances of 1.5 ? mm mrad both horizontally and vertically, a flat top beam duty factor of 1.25% (500 ?s 25 Hz) and a life-time of more than 50 days, was reported at the 3rd international symposium on negative ions, beams, and sources (NIBS2012). The experimental results of the J-PARC ion source with a plasma chamber made of stainless-steel, instead of nickel plated OFC used in the prototype source, are presented in this paper. By comparing these two sources, the following two important results were acquired. One was that the about 20% lower emittance was produced by the rather low plasma electrode (PE) temperature (T{sub PE}) of about 120?C compared with the typically used T{sub PE} of about 200?C to maximize the beam current for the plasma with the abundant cesium (Cs). The other was that by using the rod-filter magnets with a gap at each center and tuning the gap-lengths, the filter-field was optimized and the rf-power necessary to produce the J-PARC required H{sup ?} ion beam current was reduced typically 18%. The lower rf-power also decreases the emittances.

  14. LANSCE | Lujan Center | Instruments | ASTERIX

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

    Asterix Surfaces and Interfaces Asterix is a reflectometer/diffractometer/grazing-incidence-SANS/SESAME-enabled-SANS spectrometer that is primarily used for experiments or neutron scattering techniques requiring polarized neutron beams. These experiments involve studies of magnetic materials and to a smaller (though growing) extent non-magnetic systems-the latter taking advantage of the Spin Echo Scattering Angle Measurement (SESAME) technique. Examples of programs using Asterix include:

  15. Magnetic refrigeration apparatus with heat pipes

    DOE Patents [OSTI]

    Barclay, J.A.; Prenger, F.C. Jr.

    1985-10-25

    A magnetic refrigerator operating in the 4 to 20 K range utilizes heat pipes to transfer heat to and from the magnetic material at the appropriate points during the material's movement. In one embodiment circular disks of magnetic material can be interleaved with the ends of the heat pipes. In another embodiment a mass of magnetic material reciprocatingly moves between the end of the heat pipe or pipes that transmits heat from the object of cooling to the magnetic material and the end of the heat pipe or pipes that transmits heat from the magnetic material to a heat sink.

  16. Magnetic refrigeration apparatus with heat pipes

    DOE Patents [OSTI]

    Barclay, John A. (Los Alamos, NM); Prenger, Jr., F. Coyne (Madison, WI)

    1987-01-01

    A magnetic refrigerator operating in the 4 to 20 K range utilizes heat pipes to transfer heat to and from the magnetic material at the appropriate points during the material's movement. In one embodiment circular disks of magnetic material can be interleaved with the ends of the heat pipes. In another embodiment a mass of magnetic material reciprocatingly moves between the end of the heat pipe of pipes that transmits heat from the object of cooling to the magnetic material and the end of the heat pipe or pipes that transmits heat from the magnetic material to a heat sink.

  17. Research Staff | Materials Science | NREL

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    Research Staff Research staff members in NREL's Materials Science Center are aligned within four groups: Materials Physics, Analytical Microscopy and Imaging Science, Interfacial and Surface Science, and Thin-Film Materials Science and Processing. For lead researcher contacts, see our research areas. For our business contact, see Work with Us. Photo of Nancy Haegel Nancy Haegel Center Director, Materials Science Center Email | 303-384-6548 Materials Physics Photo of Angelo Mascarenhas Angelo

  18. Centers | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Centers Energy Frontier Research Centers (EFRCs) EFRCs Home Centers EFRC External Websites Research Science Highlights News & Events Publications History Contact BES Home Centers Print Text Size: A A A FeedbackShare Page EFRC Map Centers ordered alphabetically by state and then by center name California Light-Material Interactions in Energy Conversion (LMI) Ralph Nuzzo, California Institute of Technology Center for Nanoscale Controls on Geologic CO2 (NCGC) Donald DePaolo, Lawrence Berkeley

  19. Microsoft Word - TRILATERAL CRITICAL MATERIALS WORKSHOP Summary...

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

    ... magnetic mechanisms (for nanocomposites, non-rare-earth materials, and neodymium-iron-boron magnets). * Techniques to enhance the stability and texture of nanocomposite structures ...

  20. Directory - Center for Plasma in the Laboratory and Astrophysics - UW

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    Madison Physics Department Directory UW Madison Center for Plasma in the Laboratory and Astrophysics Directory CPLA Home - Experiments Madison Symmetric Torus Madsion Dynamo Experiment Rotating Wall Machine Plasma-Couette Experiment Madison Plasma Dynamo Experiment - Theory Groups MHD Turbulence Transport in Fusion Devices Plasma Astrophysics RFP Theory - Multi-Institutional Centers Center for Magnetic Self Organization Center for Theory and Computation Center for Momentum Transport and Flow

  1. Information Center | Department of Energy

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

    Center Information Center Congressional Testimony Testimony to Congress by various members of OE. Library Repository of reports and documents; fact sheets; presentations and other documentation from peer review events; and Federal Register notices. Educational Resources Educational material on the generation, transmission, and usage of electricity as well as how the electric grid works and how it needs to be modernized. Reporting Reporting to OE including Electric Disturbance Incidents and

  2. Center for Nanophase Materials Sciences - Conference 2015

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    spectroscopy for chemical analysis Organizers: Sergey Shilov and James Burgess (Bruker Optics) Local Contact: Brad Lokitz, ORNL Event overview: Join us to learn about Infrared and...

  3. Center for Nanophase Materials Sciences - Newsletter

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    solids, and thin films. Non-ambient options include controlled temperature and humidity cells, flow cells, and grazing-incidence SAXS for in-plane characterization of thin...

  4. Center for Nanophase Materials Sciences - Newsletter

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    Summer Newsletter 2010 Welcome Sean Smith CNMS Division Director Editor's Note: On August 1, the CNMS was pleased to welcome its new director, Sean Smith, who joined us from the...

  5. The Center for Nanophase Materials Sciences

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    relationship between the probability of negative entropy producing states (i.e., violations of the second law of thermodynamics), the probability of positive entropy...

  6. Center for Nanophase Materials Sciences - Newsletter

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    alcohol-free facility. The Guest House is a 3 floor, 47 room, 71 bed inn (23 rooms with King beds and 24 rooms with 2 ex-long double beds). All rooms have a mini fridge and...

  7. Center for Nanophase Materials Sciences - Conference 2015

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    September 1-2, 2015. Instructions for preparing posters: Tabletop poster boards and adhesive Velcro tabs will be provided for mounting posters. You may bring your poster to the...

  8. Center for Nanophase Materials Sciences - Newsletter

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    anions where capable of inducing cage formation. In a current user project (for Ken Jacobson, NIH), we are preparing polyamido(amine) (PAMAM) dendrimers for investigation as...

  9. Center for Nanophase Materials Sciences (CNMS)

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    "Controllable Complex Oxide Heterointerface" - Zhiqun Lin, Georgia Institute of Technology "Crafting Functional Nanocrystals by Capitalizing on Nonlinear Block Copolymers...

  10. Center for Nanophase Materials Sciences - Newsletter January...

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    The results of the user survey we conducted are presented in this issue. The UEC elections have just concluded, and our users community has elected a new committee to serve...

  11. Center for Nanophase Materials Sciences - Newsletter

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    its start, it is clear to me the obvious advantages of becoming an active user, and I hope that you will too. The success of CNMS is strongly dependent on the cutting-edge...

  12. Center for Nanophase Materials Sciences - Newsletter

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    Oak Ridge National Laboratory in Oak Ridge, Tennessee. The annual user meeting combines oral presentations, poster sessions, workshops and tutorials into a compact program designed...

  13. Center for Nanophase Materials Sciences - Newsletter

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    solid. Inelastic neutron scattering measurements of Fe1-xCoxSi alloys were combined with quantum mechanics based calculations to show why the alloys exhibit unusual softening as...

  14. Publications | Center for Energy Efficient Materials

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    Publications Zhang, Y., Bahk, J.-H., Lee, J., Birkel, C. S., Snedaker, M. L., Liu, D., Zeng, H., Moskovits, M., Shakouri, A. and Stucky, G. D. (2014), HOT CARRIER FILTERING IN SOLUTION PROCESSED HETEROSTRUCTURES: A PARADIGM FOR IMPROVING THERMOELECTRIC EFFICIENCY. Adv. Mater., 26: 2755-2761. [10.1002/adma.201304419] Huang, Ye; Wen, Wen; Mukherjee, Subhrangsu; Ade, Harald; Kramer, Edward J.; and Bazan, Guillermo C. High-Molecular-Weight Insulating Polymers Can Improve the Performance of Molecular

  15. Center for Nanophase Materials Sciences - Newsletter January...

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    in a cryo-ultra-microtome, to be transferred into the microscope while being held at liquid nitrogen temperatures. Plans are being made for a two day workshop on operating and...

  16. Center for Nanophase Materials Sciences (CNMS) - News

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    DOE

  17. Center for Nanophase Materials Sciences - Newsletter January...

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

    (NIST), Gaithersburg, MD where I lead a project on Nanoparticle Assembly in Complex Fluids. Before joining NIST, I completed my Ph.D. in 2001 in Polymer Science and...

  18. Partnerships > The Energy Materials Center at Cornell

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    In This Section Why Partnerships? Current Partners Project Updates News & Events Resources Join PARTNERSHIPS PARTNERSHIPS PARTNERSHIPS Why Partnerships? Project Updates News...

  19. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    2004 PUBLICATIONS Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. L. R. Baylor, W. L. Gardner, X. Yang, R. J. Kasica, M. A. Guillorn, B. Blalock, H. Cui, D. K. Hensley, S. Islam, D. H. Lowndes, A. V. Melechko, V. I. Merkulov, D. C. Joy, P. D. Rack, M. L. Simpson, and D. K. Thomas, "Initial Lithography Results from the Digital Electrostatic

  20. Center for Nanophase Materials Sciences (CNMS) - Publications

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    5 PUBLICATIONS Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. Carbon J. Bernholc, W. Lu, S. M. Nakhmanson, V. Meunier, and M. Buongiorno Nardelli, "Multiscale Simulations of Quantum Structures," p. 18 in Proceedings of DoD 2005 Users Group Conference, IEEE Computer Society (2005). J.-G. Che and H. P. Cheng, "First-Principles

  1. Center for Nanophase Materials Sciences (CNMS) - Publications

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

    6 PUBLICATIONS Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. Alonzo, J., Z. Huang, M. Liu, J. W. Mays, R. G. Toomey, M. D. Dadmun, and S. M. Kilbey, "Looped Polymer Brushes Formed by Self-Assembly of Poly(2-vinylpyridine)-Polystyrene-Poly(2-vinylpyridine) Triblock Copolymers at the Solid-Fluid Interface. Kinetics of Preferential

  2. Center for Nanophase Materials Sciences (CNMS) - Publications

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    8 PUBLICATIONS Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. Alexander, N. R., K. M. Branch, I. C. Iwueke, S. A. Guelcher, and A. M. Weaver, "Extracellular Matrix Rigidity Promotes Invadopodia Activity," Curr. Biol. 18(17), 1295-9 (2008). Ankner, J. F., X. Tao, C. E. Halbert, J. F. Browning, S. M. Kilbey III, O. A. Swader, M. D.

  3. Center for Nanophase Materials Sciences (CNMS) - Publications

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    9 PUBLICATIONS Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. Alonzo, J.; Mays, J. W.; Kilbey II, S. M., "Forces of Interaction Between Surfaces Bearing Looped Polymer Brushes in Good Solvent," Soft Matter 5 (9), 1897-1904 (2009). Arenholz, E.; van der Laan, G.; Yang, F.; Kemik, N.; Biegalski, M. D.; Christen, H. M.; Takamura, Y,

  4. Center for Nanophase Materials Sciences (CNMS) - Publications

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    2 PUBLICATIONS Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. Alvarez, G., "Implementation of the SU(2) Hamiltonian Symmetry for the DMRG Algorithm," Comput. Phys. Commun. 183 (10), 2226-2232 (2012). Alves, F.; Grbovic, D.; Kearney, B.; Karunasiri, G., "Microelectromechanical Systems Bimaterial Terahertz Sensor with Integrated

  5. Organic Photovoltaics | Center for Energy Efficient Materials

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    Organic Photovoltaics As an overarching goal, the CEEM OPV group seeks to understand conjugated polymer and small molecule semiconductor blends that function as the active layer in solar cell devices. The effort brings together a cohesive and mutually complementary set of experts to understand what may appear at first sight to be unrelated phenomena. Indeed, the collective CEEM OPV effort very recently led to the design, processing, structural characterization, theoretical understanding and

  6. People | Center for Energy Efficient Materials

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    People Administration/Staff Name E-mail Address Telephone Title Allen, Jane jane [at] iee [dot] ucsb [dot] edu (805) 893-3488 Business Officer Auston, David auston [at] iee [dot] ucsb [dot] edu (805) 893-3376 Executive Director Bowers, John bowers [at] ece [dot] ucsb [dot] edu (805) 893-8447 Director Faculty/Researchers Name E-mail Address Telephone Group(s)* Bazan, Guillermo bazan [at] chem [dot] ucsb [dot] edu (805) 893-5538 OPV Bowers, John bowers [at] ece [dot] ucsb [dot] edu (805) 893-8447

  7. Center for Nanophase Materials Sciences (CNMS) - Publications

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    ... Reaction with Tin Anodes: Experiment and Theory," ... for High Avidity Microbial Capture," ... Layers of Proton Exchange Membrane Fuel Cells," J. Phys. Chem. ...

  8. Center for Nanophase Materials Sciences (CNMS) - Highlights

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    RESEARCH HIGHLIGHTS Archived highlights Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. In situ microscopy explains why Pt-Co nanoparticles outperform commercial Pt fuel cell catalysts Individual Pt3Co catalyst nanoparticles (NPs) were imaged during in situ thermal annealing from 350-800°C in a scanning transmission electron microscope (STEM) to

  9. Center for Nanophase Materials Sciences (CNMS) - Publications

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    RECENT PUBLICATIONS Jump to Archived publication lists Available soon - Links to individual papers are provided when available online. These links will take you to other web sites and will open in a new window. Subscription may be required to access online publications. Agapov, R. L.; Boreyko, J. B.; Briggs, D. P.; Srijanto, B. R.; Retterer, S. T.; Collier, C. P.; Lavrik, N. V., "Asymmetric Wettability of Nanostructures Directs Leidenfrost Droplets," ACS Nano 8 (1), 860-867 (2014).

  10. Center for Nanophase Materials Sciences (CNMS) - Publications

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    ... Zutic, "Semiconductor Spintronics," Acta Physica Slovaca, 57, 565-907 (342 pages) (2007). ... Zutic, I., J. Fabian, and S. C. Erwin, "Bipolar Spintronics: from Spin injection to ...

  11. Upcoming Events | Center for Energy Efficient Materials

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    Upcoming Events Events Upcoming Events Past Events

  12. Theory & Computation > Research > The Energy Materials Center...

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    Theory & Computation In This Section Computation & Simulation Theory & Computation Computation & Simulation...

  13. Resources | Center for Energy Efficient Materials

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    Resources Simulation Techniques 1. MATLAB program for calculating drift mobilities of III-V compound semiconductors using the Rode iterative method. Click here to download Online...

  14. 2012 > Publications > Research > The Energy Materials Center...

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    ... 37(7), pp 642-650, 2012 DOI: 10.1557mrs.2012.143 A computationally efficacious free-energy functional for studies of inhomogeneous liquid water R Sundararaman, K ...

  15. Contact Us | Center for Energy Efficient Materials

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    Contact Us Map to CEEM View Full Size Map For more information, please contact: John Bowers, Director bowers at ece dot ucsb dot edu 805-893-8447 David H. Auston, Executive...

  16. Center for Nanophase Materials Sciences (CNMS) - Nanomaterials...

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    THEORY INSTITUTE (NTI): THEORY, MODELING & SIMULATION CAPABILITIES NTI Computational Cluster The NTI maintains a 12 teraflop Beowulf cluster in support of the capacity-level...

  17. Travel & Hotels | Center for Energy Efficient Materials

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    time and hassle saved will be more than worth it. UC Santa Barbara is an easy 5 minute cab ride from the Santa Barbara Airport, see taxi information below. For Santa Barbara...

  18. Iowa lab gets critical materials research center

    Broader source: Energy.gov [DOE]

    The DOE hub is set to be the largest R&D effort toward alleviating the global shortage of rare earth metals.

  19. Center for Nanophase Materials Sciences (CNMS) - Policies

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    officio seat on the SAC. Proposal Review Committees (PRCs) Evaluation of General User (GU) proposals will be carried out by appropriately constituted Proposal Review Committees....

  20. 2013 > Publications > Research > The Energy Materials Center...

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    Cations (Li+ and Mg2+) K Hernndez-Burgos, GG Rodrguez-Calero, W Zhou, SE Burkhardt, ... energy storage technologies S Conte, GG Rodrguez-Calero, SE Burkhardt, MA Lowe ...

  1. 2014 > Publications > Research > The Energy Materials Center...

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    ... Theoretical Studies of Carbonyl-Based Organic Molecules for Energy Storage Applications: The Heteroatom and Substituent Effect K Hernndez-Burgos, SE Burkhardt, GG ...

  2. 2015 > Publications > Research > The Energy Materials Center...

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    Rapid and Efficient Redox Processes within 2D Covalent Organic Framework Thin Films CR DeBlase, K Hernndez-Burgos, KE Silberstein, GG Rodrguez-Calero, RP Bisbey, HD Abrua, ...

  3. Center for Nanophase Materials Sciences - Newsletter

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    meet various research needs. The chemical or physical exfoliation of graphite is a straightforward method to produce graphene with least synthesis effort, since it takes advantage...

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    Alkemade, P.F.A.; Miro, H.; van Veldhoven, E.; Maas, D. J.; Smith, D. A.; Rack, P. D., ... Jo, J. Y.; Chen, P.; Sichel, R. J.; Baek, S. H.; Smith, R. T.; Balke, N.; Kalinin, S. V.; ...

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    chemical composition in sample environment. 4-circle X-ray diffraction 4-circle plus translation stage, high temperature, in-plane thin film diffraction. Also texture,...

  6. 2010 > Publications > Research > The Energy Materials Center...

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    CV Subban, Q Zhou, A Hu, TE Moylan, FT Wagner and FJ DiSalvo Journal of the American Chemical Society, 132(49), pp 17531-17536, 2010 DOI: 10.1021ja1074163 Pt-Decorated PdCo@PdC...

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    M.; Decker, S. .R; Bu, L. T.; Zhao, X. C.; McCabe, C.; Wohlert, J.; Bergenstrahle, M.; Brady, J. W.; Adney, W. S.; Himmel, M. E.; Crowley, M. F., ":The O-Glycosylated Linker from...

  8. Center for Nanophase Materials Sciences (CNMS) - Macromolecular...

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    Polymerization: Extensive expertise in free radical and controlled radical (ATRP, NMP, RAFT) polymerizations. Ring Opening Polymerization: Expertise in the controlled ring-opening...

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    News May 15, 2014 Multi-junction Solar Cells to Push CPV Efficiencies Beyond 50% GaN-based solar cells for integration to multi-junction photovoltaics could raise concentrated...

  10. Portsmouth Environmental Information Center | Department of Energy

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

    Portsmouth Environmental Information Center Portsmouth Environmental Information Center PORTS EIC.jpg The Portsmouth Environmental Information Center (EIC) provides greater accessibility for residents interested in learning more about DOE's environmental management activities being conducted at the Portsmouth Gaseous Diffusion Plant. A reading room is available for residents who wish to review material at the center, while copies of documents at the EIC can be reproduced free of charge for the

  11. Gluon propagators and center vortices in gluon plasma

    SciTech Connect (OSTI)

    Chernodub, M. N.; Nakagawa, Y.; Nakamura, A.; Saito, T.; Zakharov, V. I.

    2011-06-01

    We study electric and magnetic components of the gluon propagators in quark-gluon plasma in terms of center vortices by using a quenched simulation of SU(2) lattice theory. In the Landau gauge, the magnetic components of the propagators are strongly affected in the infrared region by removal of the center vortices, while the electric components are almost unchanged by this procedure. In the Coulomb gauge, the time-time correlators, including an instantaneous interaction, also have an essential contribution from the center vortices. As a result, one finds that magnetic degrees of freedom in the infrared region couple strongly to the center vortices in the deconfinement phase.

  12. Materials Down Select Decisions Made Within DOE's Chemical Hydrogen...

    Energy Savers [EERE]

    Materials Down Select Decisions Made Within DOE's Chemical Hydrogen Storage Center of Excellence Materials Down Select Decisions Made Within DOE's Chemical Hydrogen Storage Center...

  13. 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.

  14. COMPUTATIONAL SCIENCE CENTER

    SciTech Connect (OSTI)

    DAVENPORT, J.

    2005-11-01

    The Brookhaven Computational Science Center brings together researchers in biology, chemistry, physics, and medicine with applied mathematicians and computer scientists to exploit the remarkable opportunities for scientific discovery which have been enabled by modern computers. These opportunities are especially great in computational biology and nanoscience, but extend throughout science and technology and include, for example, nuclear and high energy physics, astrophysics, materials and chemical science, sustainable energy, environment, and homeland security. To achieve our goals we have established a close alliance with applied mathematicians and computer scientists at Stony Brook and Columbia Universities.

  15. Bisfuel links - Research centers

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

    Research centers http://bioenergy.asu.edu/" target="_blank">Center for Bioenergy and Photosynthesis

  16. Los Alamos National Laboratory * Est. 1943 The Pulse-Newsletter of the Los Alamos Neutron Science Center and Accelerator Operations and Technology Division

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

    1 Los Alamos National Laboratory * Est. 1943 The Pulse-Newsletter of the Los Alamos Neutron Science Center and Accelerator Operations and Technology Division I N S I D E 2 From Alex's Desk 3 lujAn Center reseArCh FeAtureD on Cover oF Langmuir 4 FunCtionAl oxiDes unDer extreme ConDi- tions-quest For new mAteriAls 6 heADs uP! By Diana Del Mauro ADEPS Communications Inside the Lujan Neutron Scattering Center, Victor Fanelli is busy preparing a superconducting magnet. In a series of delicate steps,

  17. Permanent Magnet Ecr Plasma Source With Magnetic Field Optimization

    DOE Patents [OSTI]

    Doughty, Frank C. (Plano, TX); Spencer, John E. (Plano, TX)

    2000-12-19

    In a plasma-producing device, an optimized magnet field for electron cyclotron resonance plasma generation is provided by a shaped pole piece. The shaped pole piece adjusts spacing between the magnet and the resonance zone, creates a convex or concave resonance zone, and decreases stray fields between the resonance zone and the workpiece. For a cylindrical permanent magnet, the pole piece includes a disk adjacent the magnet together with an annular cylindrical sidewall structure axially aligned with the magnet and extending from the base around the permanent magnet. The pole piece directs magnetic field lines into the resonance zone, moving the resonance zone further from the face of the magnet. Additional permanent magnets or magnet arrays may be utilized to control field contours on a local scale. Rather than a permeable material, the sidewall structure may be composed of an annular cylindrical magnetic material having a polarity opposite that of the permanent magnet, creating convex regions in the resonance zone. An annular disk-shaped recurve section at the end of the sidewall structure forms magnetic mirrors keeping the plasma off the pole piece. A recurve section composed of magnetic material having a radial polarity forms convex regions and/or magnetic mirrors within the resonance zone.

  18. About Us | Energy Frontier Research Centers

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

    About Us Home Mission Statement The mission of this Center is to investigate, at a most fundamental level, the physical and chemical principles that will allow the understanding of how advanced thermoelectric materials function and the design and synthesis of such materials. Focus The Center for Revolutionary Materials for Solid State Energy Conversion will focus on solid state conversion of thermal energy to useful electrical power, both to increase the efficiency of traditional industrial

  19. Chemical synthesis, characterizations and magnetic properties...

    Office of Scientific and Technical Information (OSTI)

    PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ALLOYS; BCC LATTICES; COERCIVE FORCE; CRYSTALS; LATTICE PARAMETERS; MAGNETIC...

  20. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary Tables Key Federal Legislation The information below includes a brief chronology and

  1. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Local Examples Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  2. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Search Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary

  3. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Tools Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... Fuel Properties Search Fuel Properties Comparison Create a custom chart

  4. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    About the Data Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  5. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    State Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary

  6. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Incentives Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  7. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Summary Tables Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  8. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Federal Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary

  9. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    State Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples Summary

  10. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Tools Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... Truckstop Electrification Truck Stop Electrification Locator Locate

  11. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... Vehicle and Infrastructure Cash-Flow Evaluation Model VICE 2.0: Vehicle

  12. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Incentives Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  13. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Incentives » Federal Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local

  14. Alternative Fuels Data Center

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Incentives Printable Version Share this resource Send a link to Alternative Fuels Data Center to someone by E-mail Share Alternative Fuels Data Center on Facebook Tweet about Alternative Fuels Data Center on Twitter Bookmark Alternative Fuels Data Center on Google Bookmark Alternative Fuels Data Center on Delicious Rank Alternative Fuels Data Center on Digg Find More places to share Alternative Fuels Data Center on AddThis.com... More in this section... Search Federal State Local Examples

  15. Danforth Center Tour | Photosynthetic Antenna Research Center

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

    Danforth Center Tour Danforth Center Tour As part of our Events & Topics in Bioenergy and the Environment series, we hosted a tour to the Donald Danforth Plant Science Center to get a behind-the-scenes look at all the fascinating science being done on site.

  16. DOE - Office of Legacy Management -- Center for Energy and Environmental

    Office of Legacy Management (LM)

    Research - PR 02 Center for Energy and Environmental Research - PR 02 FUSRAP Considered Sites Site: Center for Energy and Environmental Research (PR.02 ) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: Also see Documents Related to Center for Energy and Environmental Research

  17. DOE - Office of Legacy Management -- Energy Technology Engineering Center -

    Office of Legacy Management (LM)

    044 Energy Technology Engineering Center - 044 FUSRAP Considered Sites Site: Energy Technology Engineering Center (044) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: The Energy Technology Engineering Center (ETEC) is a former Department of Energy research laboratory that tested components and systems for liquid metal cooled nuclear

  18. Journal Articles - Publications - Center for Plasma in the Laboratory and

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

    Astrophysics - UW Madison Physics Department Articles UW Madison Center for Plasma in the Laboratory and Astrophysics Publications: Journal Articles CPLA Home - Experiments Madison Symmetric Torus Madsion Dynamo Experiment Rotating Wall Machine Plasma-Couette Experiment Madison Plasma Dynamo Experiment - Theory Groups MHD Turbulence Transport in Fusion Devices Plasma Astrophysics RFP Theory - Multi-Institutional Centers Center for Magnetic Self Organization Center for Theory and Computation

  19. Conferences - Publications - Center for Plasma in the Laboratory and

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

    Astrophysics - UW Madison Physics Department Publications: Conferences CPLA Home - Experiments Madison Symmetric Torus Madsion Dynamo Experiment Rotating Wall Machine Plasma-Couette Experiment Madison Plasma Dynamo Experiment - Theory Groups MHD Turbulence Transport in Fusion Devices Plasma Astrophysics RFP Theory - Multi-Institutional Centers Center for Magnetic Self Organization Center for Theory and Computation Center for Momentum Transport and Flow Organization About CPLA Directory

  20. Publications - Center for Plasma in the Laboratory and Astrophysics - UW

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

    Madison Physics Department Publications CPLA Home - Experiments Madison Symmetric Torus Madsion Dynamo Experiment Rotating Wall Machine Plasma-Couette Experiment Madison Plasma Dynamo Experiment - Theory Groups MHD Turbulence Transport in Fusion Devices Plasma Astrophysics RFP Theory - Multi-Institutional Centers Center for Magnetic Self Organization Center for Theory and Computation Center for Momentum Transport and Flow Organization About CPLA Directory Publications Links CPLA Schedule

  1. Low-temperature magnetic refrigerator

    DOE Patents [OSTI]

    Barclay, J.A.

    1983-05-26

    The invention relates to magnetic refrigeration and more particularly to low temperature refrigeration between about 4 and about 20 K, with an apparatus and method utilizing a belt of magnetic material passed in and out of a magnetic field with heat exchangers within and outside the field operably disposed to accomplish refrigeration.

  2. Low-temperature magnetic refrigerator

    DOE Patents [OSTI]

    Barclay, John A. (Los Alamos, NM)

    1985-01-01

    The disclosure is directed to a low temperature 4 to 20 K. refrigeration apparatus and method utilizing a ring of magnetic material moving through a magnetic field. Heat exchange is accomplished in and out of the magnetic field to appropriately utilize the device to execute Carnot and Stirling cycles.

  3. 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

  4. Center for Functional Nanomaterials (CFN) | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    Functional Nanomaterials (CFN) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators' Meetings BES

  5. Center for Integrated Nanotechnologies (CINT) | U.S. DOE Office of Science

    Office of Science (SC) Website

    (SC) Integrated Nanotechnologies (CINT) Scientific User Facilities (SUF) Division SUF Home About User Facilities X-Ray Light Sources Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Center for Functional Nanomaterials (CFN) Center for Integrated Nanotechnologies (CINT) Center for Nanophase Materials Sciences (CNMS) Center for Nanoscale Materials (CNM) The Molecular Foundry (TMF) Projects Accelerator & Detector Research Science Highlights Principal Investigators'

  6. NREL: Education Center - Events

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

    Education Center Printable Version Events Unless otherwise notified, events listed here will be held at the NREL Education Center, 15013 Denver West Parkway, Golden, CO. The...

  7. Child Development Centers

    Broader source: Energy.gov [DOE]

    Headquarters operates National Association for the Education of Young Children (NAEYC) accredited child development centers at its Forrestal and Germantown facilities. Each center provides day care...

  8. Soft X-ray techniques to study mesoscale magnetism

    SciTech Connect (OSTI)

    Kortright, Jeffrey B.

    2003-06-26

    Heterogeneity in magnetization (M) is ubiquitous in modern systems. Even in nominally homogeneous materials, domains or pinning centers typically mediate magnetization reversal. Fundamental lengths determining M structure include the domain wall width and the exchange stiffness length, typically in the 4-400 nm range. Chemical heterogeneity (phase separation, polycrystalline microstructure, lithographic or other patterning, etc.) with length scales from nanometers to microns is often introduced to influence magnetic properties. With 1-2 nm wavelengths {lambda}, soft x-rays in principle can resolve structure down to {lambda}/2, and are well suited to study these mesoscopic length scales [1, 2]. This article highlights recent advances in resonant soft x-ray methods to resolve lateral magnetic structure [3], and discusses some of their relative merits and limitations. Only techniques detecting x-ray photons (rather than photo-electrons) are considered [4], since they are compatible with strong applied fields to probe relatively deeply into samples. The magneto-optical (MO) effects discovered by Faraday and Kerr were observed in the x-ray range over a century later, first at ''hard'' wavelengths in diffraction experiments probing interatomic magnetic structure [5]. In the soft x-ray range, magnetic linear [6] and circular [7] dichroism spectroscopies first developed that average over lateral magnetic structure. These large resonant MO effects enable different approaches to study magnetic structure or heterogeneity that can be categorized as microscopy or scattering [1]. Direct images of magnetic structure result from photo-emission electron microscopes [4, 8] and zone-plate microscopes [9, 10]. Scattering techniques extended into the soft x-ray include familiar specular reflection that laterally averages over structure but can provide depth-resolved information, and diffuse scattering and diffraction that provide direct information about lateral magnetic structure. Scattering techniques are further classified as partially for fully coherent according to the extent of transverse coherence of the incident beam.

  9. Cosmic magnetism

    SciTech Connect (OSTI)

    Seymour, P.

    1986-01-01

    This book deals with the cosmic magnetism in a non-mathematical way. It uses Faraday's very powerful and highly pictorial concept of lines of magnetic force and their associated physical properties to explain the structure and behavior of magnetic fields in extraterrestrial objects. Contents include: forces of nature; magnetic field of earth; solar and interplanetary magnetic fields; magnetic fields in the solar system; stars and pulsars; and magnetic fields of the milky way and other galaxies.

  10. NREL: Photovoltaics Research - Materials Applications and Performance...

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

    about the scientists specializing in each area of PV research: National Center for Photovoltaics research staff Materials Applications and Performance research staff Materials...

  11. Multidisciplinary and Multicultural Environment | Center for...

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

    materials for oxidation of water to oxygen and hydrogen ions. In the Center for Bio-Inspired Solar Fuel Production at ASU, Amir was involved in a collaborative project on...

  12. The Butterfly Effect on Magnetic Vortices

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

    The Butterfly Effect on Magnetic Vortices The Butterfly Effect on Magnetic Vortices Print Tuesday, 20 January 2015 12:12 Miniature whirlpools of spins, also known as magnetic vortices, are currently a hot topic in magnetism research. In addition to providing insight into fundamental topological properties of materials, magnetic vortices show great potential as building blocks in advanced magnetic technologies. However, a completely reliable control over the vortex spin structure is mandatory

  13. Disorder-Induced Microscopic Magnetic Memory

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

    Disorder-Induced Microscopic Magnetic Memory Disorder-Induced Microscopic Magnetic Memory Print Wednesday, 26 October 2005 00:00 The magnetic-recording industry deliberately introduces carefully controlled disorder into its materials to obtain the desired magnetic properties. But as the density of magnetic disks climbs, the size of the magnetic domains responsible for storage must decrease, posing new challenges. Beautiful theories based on random microscopic disorder have been developed over

  14. Center for Advanced Solar Photophysics | Members

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

    Materials and Devices within CASP Jeffrey M. Pietryga Center for Advanced Solar Photophysics, Chemistry Division, LANL Wednesday, March 18th, 1:30pm Chemistry Division Auditorium, TA-46, Bld. 535, Rm. 103 Abstract This presentation is the second in a series of informational seminars conducted in conjunction with a call for exploratory projects (http://casp.lanl.gov/call.shtml) issued by the Center for Advanced Solar Photophysics (CASP). Here, I will examine the material and device development

  15. Tiny Particles with Big Magnetic Power | Argonne National Laboratory

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

    Argonne scientists have developed a new material known as magnetic nanofibers to create more efficient magnets. PDF icon Nano Sheet_tiny particles

  16. Novel Flux Coupling Machine without Permanent Magnets - U Machine...

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

    Magnets Novel Flux Coupling Machine without Permanent Magnets Vehicle Technologies Office Merit Review 2014: Alternative High-Performance Motors with Non-Rare Earth Materials...

  17. Recycling Magnets from the Factory Floor | The Ames Laboratory

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

    Energy Innovation Hub led by the Ames Laboratory, recovers valuable rare-earth magnetic material from manufacturing waste and creates useful magnets out of it. Ames Laboratory...

  18. CMI Unique Facility: Thermal Analysis in High Magnetic Fields...

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

    analysis components to be compatible with high magnetic fields and radio frequency induction heating. Thermal analysis of materials at high temperatures and high magnetic fields...

  19. DOE - Office of Legacy Management -- Pittsburgh Energy Technology Center -

    Office of Legacy Management (LM)

    029 Pittsburgh Energy Technology Center - 029 FUSRAP Considered Sites Site: Pittsburgh Energy Technology Center (029 ) Designated Name: Alternate Name: Location: Evaluation Year: Site Operations: Site Disposition: Radioactive Materials Handled: Primary Radioactive Materials Handled: Radiological Survey(s): Site Status: The former Pittsburgh Energy and Technology Center in Bruceton, Pennsylvania has merged with the Morgantown Energy Technology Center, and in December 1999 became the National

  20. 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...

  1. tracc-comuting-center-html

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

    Transportation Research and Analysis Computing Center

  2. Analysis of Nitrogen Incorporation in Group III-Nitride-Arsenide Materials Using a Magnetic Sector Secondary-Ion Mass Spectrometry (SIMS) Instrument: Preprint

    SciTech Connect (OSTI)

    Reedy, R. C.; Geisz, J. F.; Kurtz, S. R.; Adams, R. O.; Perkins, C. L.

    2001-10-01

    Presented at the 2001 NCPV Program Review Meeting: Group III-nitride-arsenide materials were studied by SIMS, XRD, and Profiler to determine small amounts of nitrogen that can lower the alloys bandgap significantly.

  3. Household magnets

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

    Now which is stronger, gravity or magnetism? What is going on? How do flexible refrigerator magnets work? Get 2 of these magnets, they are often the size of a business card....

  4. Novel Materials for Energy Research | The Ames Laboratory

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

    Novel Materials for Energy Research Novel Materials for Energy Research The Ames Laboratory is home to the Materials Preparation Center (MPC). The MPC is a DOE Basic Energy...

  5. News | Energy Frontier Research Centers

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

    News Home Full Updated List of Publications Now Available Online! The full publication list of the RMSSEC EFRC is avaialble online at the follwoing DOE website. This list is frequently updated and will provide users with the latest information on Center publications. http://science.energy.gov/bes/efrc/publications/ New ZT record set by RMSSEC researchers - appears in Nature magazine RMSSEC researchers have once again set a new recored in terms of thermoelectric performance of a material. In work

  6. Center Stack Vacuum Vessel

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

    hotter than the 15 million degree Celsius core of the sun. Magnetic field strength: 1 tesla, or 20,000 times the strength of the Earth's magnetic field Neutral Beam Poloidal...

  7. Whirlpools on the Nanoscale Could Multiply Magnetic Memory

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

    Whirlpools on the Nanoscale Could Multiply Magnetic Memory Whirlpools on the Nanoscale Could Multiply Magnetic Memory Print Tuesday, 21 May 2013 00:00 Research at the Advanced Light Source may lead to four-bit magnetic cells housed on nanoscale metal disks, instead of the two-bit magnetic domains of standard magnetic memories. In magnetic vortices, parallel electron spins point either clockwise or counterclockwise, while in their crowded centers the spins point either down or up. "From the

  8. ODU establishes a Center for Accelerator Science | Jefferson...

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

    atom-smashing experiments, as well as for materials processing, medical imaging and radiation therapies against cancer. The center will receive personnel and funding support from...

  9. Fast superconducting magnetic field switch

    DOE Patents [OSTI]

    Goren, Y.; Mahale, N.K.

    1996-08-06

    The superconducting magnetic switch or fast kicker magnet is employed with electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater that the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles. 6 figs.

  10. Fast superconducting magnetic field switch

    DOE Patents [OSTI]

    Goren, Yehuda (Mountain View, CA); Mahale, Narayan K. (The Woodlands, TX)

    1996-01-01

    The superconducting magnetic switch or fast kicker magnet is employed with electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater that the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles.

  11. UAIEE and Industrial Assessment Centers

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

    55-62011| Industrial Assessment Centers * Started in 1976 * Currently 26 Centers across the US * Almost...

  12. Multiparameter magnetic inspection system with magnetic field control and plural magnetic transducers

    DOE Patents [OSTI]

    Jiles, David C. (Ames, IA)

    1991-04-16

    A multiparameter magnetic inspection system for providing an efficient and economical way to derive a plurality of independent measurements regarding magnetic properties of the magnetic material under investigation. The plurality of transducers for a plurality of different types of measurements operatively connected to the specimen. The transducers are in turn connected to analytical circuits for converting transducer signals to meaningful measurement signals of the magnetic properties of the specimen. The measurement signals are processed and can be simultaneously communicated to a control component. The measurement signals can also be selectively plotted against one another. The control component operates the functioning of the analytical circuits and operates and controls components to impose magnetic fields of desired characteristics upon the specimen. The system therefore allows contemporaneous or simultaneous derivation of the plurality of different independent magnetic properties of the material which can then be processed to derive characteristics of the material.

  13. Multiparameter magnetic inspection system with magnetic field control and plural magnetic transducers

    DOE Patents [OSTI]

    Jiles, D.C.

    1991-04-16

    A multiparameter magnetic inspection system is disclosed for providing an efficient and economical way to derive a plurality of independent measurements regarding magnetic properties of the magnetic material under investigation. The plurality of transducers for a plurality of different types of measurements operatively connected to the specimen. The transducers are in turn connected to analytical circuits for converting transducer signals to meaningful measurement signals of the magnetic properties of the specimen. The measurement signals are processed and can be simultaneously communicated to a control component. The measurement signals can also be selectively plotted against one another. The control component operates the functioning of the analytical circuits and operates and controls components to impose magnetic fields of desired characteristics upon the specimen. The system therefore allows contemporaneous or simultaneous derivation of the plurality of different independent magnetic properties of the material which can then be processed to derive characteristics of the material. 1 figure.

  14. Green Jobs Training Center

    Broader source: Energy.gov [DOE]

    Provides an overview of the training available through the Green Jobs Training Center including certification courses and the apprenticeship program.

  15. Applied Research Center

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

    ARC Privacy and Security Notice Skip over navigation Search the JLab Site Applied Research Center Please upgrade your browser. This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Applied Research Center ARC Home Consortium News EH&S Reports print version ARC Resources Commercial Tenants ARC Brochure Library Conference Room Applied Research Center Applied Research Center front view Applied Research

  16. First National Technology Center

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

    National Technology First National Technology Center Center Dennis Hughes FMA, RPA, P.E. Lead Property Manager, First National Buildings, Inc. 2 First National Technology First National Technology Center Center First National of Nebraska, Inc. - $12 Billion Assets - 5,400 employees - 6.6 million customers in 50 states - 60 banking locations Nebraska, Colorado, Kansas, South Dakota,Texas, Illinois - Largest in house merchant processor in United States Top ten VISA® and MasterCard® processor Top

  17. ARM - External Data Center

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

    govExternal Data Center External Data Center Order Data Description of External Data Streams Data Viewers and Plots (selected data sets) XDC Documentation External Data Center The ARM External Data Center (XDC) at Brookhaven National Laboratory identifies sources and acquires data, called "external data", to augment the data being generated within the program. The scientific need and the priorities for acquiring, processing and archiving the external data-streams are established by the

  18. Tiny Particles with Big Magnetic Power | Argonne National Laboratory

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

    "Magnetic nanofibers" are special not only for their inherent properties as individual magnets, but also for their ability to be manipulated and deposited precisely to form novel materials. PDF icon tiny_magnetic_particles

  19. Permanent magnet multipole with adjustable strength

    DOE Patents [OSTI]

    Halbach, Klaus (Berkeley, CA)

    1985-01-01

    Two or more magnetically soft pole pieces are symmetrically positioned along a longitudinal axis to provide a magnetic field within a space defined by the pole pieces. Two or more permanent magnets are mounted to an external magnetically-soft cylindrical sleeve which rotates to bring the permanent magnets into closer coupling with the pole pieces and thereby adjustably control the field strength of the magnetic field produced in the space defined by the pole pieces. The permanent magnets are preferably formed of rare earth cobalt (REC) material which has a high remanent magnetic field and a strong coercive force. The pole pieces and the permanent magnets have corresponding cylindrical surfaces which are positionable with respect to each other to vary the coupling therebetween. Auxiliary permanent magnets are provided between the pole pieces to provide additional magnetic flux to the magnetic field without saturating the pole pieces.

  20. Permanent-magnet multipole with adjustable strength

    DOE Patents [OSTI]

    Halbach, K.

    1982-09-20

    Two or more magnetically soft pole pieces are symmetrically positioned along a longitudinal axis to provide a magnetic field within a space defined by the pole pieces. Two or more permanent magnets are mounted to an external magnetically-soft cylindrical sleeve which rotates to bring the permanent magnets into closer coupling with the pole pieces and thereby adjustably control the field strength of the magnetic field produced in the space defined by the pole pieces. The permanent magnets are preferably formed of rare earth cobalt (REC) material which has a high remanent magnetic field and a strong coercive force. The pole pieces and the permanent magnets have corresponding cylindrical surfaces which are positionable with respect to each other to vary the coupling there between. Auxiliary permanent magnets are provided between the pole pieces to provide additional magnetic flux to the magnetic field without saturating the pole pieces.