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1

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Geological Survey of Alabama SCNGO FY13-14/24 months Gary Covatch Tuscaloosa, AL Petrophysics/Tight Rock Characterization for Improved Stimulation and Production Technology in Shales Activities include geologic characterization, geologic interpretation and modeling, petrologic characterization, and petrophyscial characterization. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2013.01.16 13:31:54 -05'00' 01 16 2013 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2013.01.30 07:40:08 -06'00' 01 30 2013 CX covers activities conducted in existing lab/office campus setting. No field work conducted under

2

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DE-AC26-07NT42677 DE-AC26-07NT42677 RPSEA FE Multiple SCNGO FY13-15/36 months Gary Covatch LaSalle County, TX Technology Integration Program Phase II Field Trial: Site One - Eagle Ford Shale (SUMMARY CX) Field activity photography and videography, field data collection, air quality analysis, comparison of water treatment technologies, mitigation of vehicle traffic site impacts, and site/project management. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2013.03.21 09:48:47 -04'00' 03 21 2013 Pierina Fayish Digitally signed by Pierina Fayish DN: cn=Pierina Fayish, o, ou, email=pierina.fayish@netl.doe.gov, c=US Date: 2013.04.15 09:12:23 -04'00' 04 15 2013 List of prime and subcontractors for this location supplied to NCO. DE-AC26-07NT42677 Ultra-Deepwater

3

NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 Lockheed Martin Corporation FE 09121-3300-05 SCNGO 2011 Gary Covatch 12 months Port Fourchon, LA - Gulf of Mexico Autonomous Inspection of Subsea Facilities (Phase...

4

NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 Lockheed Martin Corporation FE 09121-3303 SCNGO 2010 Gary Covatch 12 months Riviera Beach, Florida Autonomous Inspection of Subsea Facilities Develop, integrate and...

5

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Nautilus International LLC SCNGO FY13-14/12 months Gary Covatch Celebration, FL Coil Tubing (CT) Drilling and Intervention System Using Cost-Effective Vessels (10121-4505-01) Engineering design for the self-standing riser and certification of that design. The project administrator is located primarily at this location and does planning and project administrative work. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2013.09.03 08:40:10 -04'00' 09 03 2013 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2013.09.11 14:46:12 -06'00' 09 11 2013 CX covers activities to be conducted within an existing office building.

6

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Berexco LLC SCNGO FY12/24 months Gary Covatch Trembley Field, Reno County, KS Field Demonstration of Chemical Flooding of the Trembly Oilfield, Reno County, Kansas - Phase I Phase I field activities at the Trembly well oilfield site are an inter-well tracer study and a polymer injectivity test. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.07.25 09:08:28 -04'00' 07 25 2012 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2012.09.18 07:46:29 -05'00' 09 18 2012 CX only covers Phase I field work at existing well site. Separate CX/EQ to be submitted for Phase Two field work.

7

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Multiple SCNGO FY12/18 months Gary Covatch Multiple sites, Multiple states Hybrid Rotor Compression for Multiphase and Liquids-Rich Wellhead Production Applications (SUMMARY CX) Research and development on pre-existing technology,perform testing on existing prototype and engineering and design of compression system. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.09.06 12:52:51 -04'00' 09 06 2012 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2012.09.14 07:26:09 -04'00' 09 14 2012 CX covers activities at existing facilities and lab work only. Field testing is expected at a later

8

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DE-AC26-07NT42677 DE-AC26-07NT42677 RPSEA FE Multiple SCNGO FY12/30 months Gary Covatch TX, LA, NY, OK, Scotland, Canada More Improvements to Deepwater Subsea Measurement (SUMMARY CX) Design, computer modeling, fabrication, and testing of sensors to measure multiphase flow. The existing sampling system will be tested to access existing practices. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.06.08 09:52:56 -04'00' 06 08 2012 john ganz Digitally signed by john ganz DN: cn=john ganz, o=environmental compliance division, ou=office of general counsel, email=john.ganz@netl.doe.gov, c=US Date: 2012.06.15 09:31:17 -04'00' 6 14 2012 List of subcontractors and nine sites covered under this Summary CX has been provided to NCO.

9

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Chesapeake Corporation SCNGO 2012; FY12/24 months Gary Covatch Bradford,Sullivan&Susquehanna Co,PA Zonal Isolation Improvement for Horizontal Wells Drilling in the Marcellus Shale Collection of real time data during cement jobs through observation for the purpose of developing an integrated process to optimize zonal isolation. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.07.10 08:22:07 -04'00' 07 10 2012 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2012.07.12 14:03:15 -05'00' 07 12 2012 CX covers activities which include gathering data and information on current cementing operations,

10

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Battelle Memorial Institute-PNNL SCNGO FY13/24 months Gary Covatch Richland, WA Upstream Ultrasonic Processing for Small Producers: Preventative Maintenance for Paraffin Management Laboratory bench-scale and flow-loop testing of oil treament reactor for static testing to quantify ultrasonic heating of static, non-flowing oil. Modeling & economic analysis will also be performed. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.11.01 15:27:03 -04'00' 11 01 2012 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2012.12.17 07:27:42 -06'00' 12 17 2012 CX is limited to administrative and lab-scale tasks. No field work is authorized. CX/EQ to be

11

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Multiple SCNGO FY13-16/36 months Gary Covatch Multiple sites, Multiple states Technology Integration Program - Field Trial Site Two - Eagle Ford Shale, DeWitt County, Texas SUMMARY CX to cover air emissions measurements, water quality screening, soil/livestock impact analysis, invasive species survey, community/public studies, documentation, and off-site lab work. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2013.06.17 09:27:21 -04'00' 06 17 2013 John Ganz Digitally signed by John Ganz DN: cn=John Ganz, o=NETL, ou=ECD, email=john.ganz@netl.doe.gov, c=US Date: 2013.06.19 13:42:11 -04'00' 6 19 2013 Summary CX covers field activities in DeWitt County, TX and lab-scale work in College Station, TX,

12

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Canyon Offshore SCNGO FY13-15/24 months Gary Covatch Houston, TX Deepwater Permanent Subsea Pressure Compensated Chemical Reservoir Construction and Testing Confirm application & unique requirements; develop an operational plan/story board & confirm with dynamic simulation and analysis of final design; supply project management, cost control and reporting Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2013.08.05 08:43:51 -04'00' 08 05 2013 John Ganz Digitally signed by John Ganz DN: cn=John Ganz, o=NETL, ou=ECD, email=john.ganz@netl.doe.gov, c=US Date: 2013.08.14 10:38:58 -04'00' 8 14 2013 CX approval is for CX(-A) activities only. No lab scale work or field tests/demonstrations approved

13

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Multiple (see below) SCNGO FY12/ 36 months Gary Covatch Houston, TX Coil Tubing (CT) Drilling and Intervention System Using Cost-Effective Vessels (10121-4505-01) Project management and design of a deep water CT system consisting of a vessel, CT equipment, and a modular, reusable Self Supporting Riser (SSR) that bridges the gap between the deck and the seafloor. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.04.02 13:07:49 -04'00' 04 02 2012 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2012.04.06 14:48:57 -05'00' 04 06 2012 Subs: Nautilus International LLC and MEPS-First Oil Ltd. This CX covers Phase I&Phase II activities

14

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE GE Global Research SCNGO FY12/48 months Gary Covatch Niskayuna, NY Qualification of Flexible Fiber Reinforced Pipe for 10,000 Foot Water Depths Develop a novel hybrid (carbon-fiber composite/metal) flexible deepwater rise pipe technology for oil and gas operations. Engineering analysis and laboratory testing of test samples (Phases 1 & 2). Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.07.12 11:18:05 -04'00' 07 12 2012 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=ECD, email=Jesse.Garcia@netl.doe.gov, c=US Date: 2012.07.12 15:05:27 -05'00' 07 12 2012 CX covers activities under Phase I: Pipe Design and Development;Phase II:Prototype Development and

15

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE Stress Engineering Services, Inc. SCNGO FY12/12 months (Phases 1 and 2) Gary Covatch Houston, Harris County, Texas Ultra-Deepwater Riser Concepts for High Motion Vessels Study designed to evaluate and rank potential alternate ultra-deepwater riser concepts, identify technology gaps, and develop testing plans using paper study, engineering analysis, and simulations. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.06.08 10:48:14 -04'00' 06 08 2012 john ganz Digitally signed by john ganz DN: cn=john ganz, o=environmental compliance division, ou=office of general counsel, email=john.ganz@netl.doe.gov, c=US Date: 2012.06.12 08:58:51 -04'00' 6 12 2012

16

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AC26-07NT42677 AC26-07NT42677 RPSEA FE GE Global Research SCNGO 2012; FY12/20 months Gary Covatch Niskayuna, NY All Electric Subsea Autonomous High Integrity Pressure Protection System (HIPPS0 Architecture Technology research, engineering design & analysis, and laboratory-scale testing of new electro-mechanical actuator mechanisms for fail-safe valve closure. Gary L. Covatch Digitally signed by Gary L. Covatch DN: cn=Gary L. Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2012.07.11 14:32:19 -04'00' 07 11 2012 Jesse Garcia Digitally signed by Jesse Garcia DN: cn=Jesse Garcia, o=NETL, ou=OPFC, email=Jesse.Garcia@NETL.doe.gov, c=US Date: 2012.07.16 18:02:05 -04'00' 07 16 2012 CX covers laboratory work within existing facilities for research, design and analysis of valve

17

Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources  

SciTech Connect

RPSEA is currently in its first year of performance under contract DE-AC26-07NT42677, Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program Administration. Significant progress has been made in establishing the program administration policies, procedures, and strategic foundation for future research awards. RPSEA has concluded an industry-wide collaborative effort to identify focus areas for research awards under this program. This effort is summarized in the RPSEA Draft Annual Plan, which is currently under review by committees established by the Secretary of Energy.

Russell E. Fray

2007-05-31T23:59:59.000Z

18

Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources  

Science Conference Proceedings (OSTI)

RPSEA is currently in its first year of performance under contract DE-AC26-07NT42677, Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program Administration. Progress continues to be made in establishing the program administration policies, procedures, and strategic foundation for future research awards. Significant progress was made in development of the draft program solicitations. In addition, RPSEA personnel continued an aggressive program of outreach to engage the industry and ensure wide industry participation in the research award solicitation process.

Russell E. Fray

2007-06-30T23:59:59.000Z

19

NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DE-AC26-07NT42677 DE-AC26-07NT42677 The University of Texas at Austin FE 09122-41 SCNGO 2010 Gary Covatch 36 months Austin, Texas Improved Drilling and Fracturing Fluids for Shale Gas Reservoirs The purpose of the project is to develop materials and methods for substantially reducing drilling and completion costs and maximizing gas well productivities in shale gas reservoirs. 08 24 2010 Gary Covatch Digitally signed by Gary Covatch DN: cn=Gary Covatch, o=NETL, ou=SCNGO, email=gary.covatch@netl.doe.gov, c=US Date: 2010.08.24 15:32:45 -04'00' 9 10 2010 john ganz Digitally signed by john ganz DN: cn=john ganz, o=NETL- DOE, ou=140 OPFC, email=john.ganz@netl.doe.gov, c=US Date: 2010.09.10 11:19:13 -04'00' Activity covered by this CX is restricted Laboratory/ bench scale experiments at the University of TX

20

RPSEA Final Report  

NLE Websites -- All DOE Office Websites (Extended Search)

RPSEA RPSEA Final Report 08122-36.Final Produced Water Pretreatment for Water Recovery and Salt Production 08122-36 January 26, 2012 Principal Investigator: James M. Silva Senior Chemical Engineer General Electric Global Research Center 1 Research Circle Niskayuna, NY 12309 ii Legal Notice This report was prepared by General Electric Global Research as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA, members of RPSEA, the National Energy Technology Laboratory, the U.S. Department of Energy, nor any person acting on behalf of any of the entities: a. MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO ACCURACY, COMPLETENESS, OR USEFULNESS OF THE INFORMATION

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

RPSEA Document Template.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

RPSEA RPSEA Phase II Final Technical Report 09121-3300-05.FINAL Autonomous Inspection of Subsea Facilities 09121-3300-05 March 27, 2012 Dan McLeod Program Manager Lockheed Martin MS2 100 E. 17th Street Riviera Beach, FL 33404 i LEGAL NOTICE This report was prepared by Lockheed Martin MS2 as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA members of RPSEA, the National Energy Technology Laboratory, the U.S. Department of Energy, nor any person acting on behalf of any of the entities: a. MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO ACCURACY, COMPLETENESS, OR USEFULNESS OF THE INFORMATION CONTAINED IN THIS DOCUMENT, OR THAT THE USE OF ANY INFORMATION, APPARATUS, METHOD, OR PROCESS DISCLOSED IN THIS

22

RPSEA Final Report Stratigraphic Controls on Tight-gas Sandstone...  

NLE Websites -- All DOE Office Websites (Extended Search)

School of Mines as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA members of RPSEA, the National Energy Technology...

23

FINAL REPORT: RPSEA PROJECT NO.  

NLE Websites -- All DOE Office Websites (Extended Search)

REPORT: REPORT: RPSEA PROJECT NO. 07121-DW1603D RICE UNIVERSITY Structural Health Monitoring System for Deepwater Risers with Vortex-induced Vibration: Nonlinear Modeling, Blind Identification Fatigue/Damage Estimation and Local Monitoring using Magnetic Flux Leakage by Chaojun Huang A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy Approved, Thesis Committee: Satish Nagarajaiah, Chair Professor of Civil and Environmental Engineering and Mechanical Engineering and Material Science Jamie E. Padgett Assistant Professor of Civil and Environmental Engineering Andrew J. Dick Assistant Professor of Mechanical Engineering and Material Science Houston, Texas June, 2012 ABSTRACT Structural Health Monitoring System for Deepwater Risers with Vortex-induced Vibration: Nonlinear Modeling, Blind Identification Fatigue/Damage

24

RPSEA Subcontract Awards - Sept 3 2008.xls  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

RPSEA Cost RPSEA Cost RPSEA Award Lead Performer Cost Cost Share Date Unconventional Program 7 Novel Concepts for Unconventional Gas Development in Shales, Tight Sands and Coalbeds Carter Technology Co. $114,600.00 $91,680.00 $22,920.00 7/28/2008 9 Application Of Natural Gas Composition To Modeling Communication Within And Filling Of Large Tight-Gas-Sand Reservoirs, Rocky Mountains Colorado School of Mines $1,016,417.00 $640,417.00 $376,000.00 8/25/2008 16 New Albany shale Gas Gas Technology Institute $4,502,723.00 $3,445,159.00 $1,057,564.00 7/28/2008 17 Geological Foundation for Production of Natural Gas from Diverse Shale Formations Geological Survey of Alabama $844,052.00 $497,459.00 $346,593.00 8/19/2008 33 "Advanced Hydraulic Fracturing Technology For Unconventional Tight Gas Reservoirs"

25

RPSEA 08123-10 Final Report Signature RPSEA Final Report Electrical Power Generation from Produced Water: Field  

NLE Websites -- All DOE Office Websites (Extended Search)

RPSEA 08123-10 Final Report Signature RPSEA 08123-10 Final Report Signature RPSEA Final Report Electrical Power Generation from Produced Water: Field Demonstration for Ways to Reduce Operating Costs for Small Producers Project: 08123-10 April 30, 2012 Loy Sneary, President Robin Dahlheim, Sales Gulf Coast Green Energy 1801 7th St, Ste 230 Bay City, TX 77414 RPSEA 08123-10 Final Report Signature LEGAL NOTICE This report was prepared by Gulf Coast Green Energy as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA members of RPSEA, the National Energy Technology Laboratory, the U.S. Department of Energy, nor any person acting on behalf of any of the entities: MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO

26

FIRST DRAFT OF OUTLINE: RPSEA 1 RESIDUAL OIL ZONE RESEARCH  

NLE Websites -- All DOE Office Websites (Extended Search)

Commercial Exploitation and the Origin of Commercial Exploitation and the Origin of Residual Oil Zones: Developing a Case History in the Permian Basin of New Mexico and West Texas RPSEA PROJECT NUMBER.FINAL Commercial Exploitation and the Origin of Residual Oil Zones: Developing a Case History in the Permian Basin of New Mexico and West Texas Contract 81.089 08123-19-RPSEA June 28, 2012 Dr. Robert Trentham Director, Center for Energy and Economic Diversification The University of Texas of the Permian Basin Odessa, Texas 79762 L. Steven Melzer Melzer Consulting Midland, Texas 79701 David Vance Arcadis, U. S. Midland, Texas 79701 LEGAL NOTICE This report was prepared by Dr Robert Trentham as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA

27

Microsoft Word - RPSEA Draft Final Report.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

FINAL REPORT FINAL REPORT New Safety Barrier Testing Methods RPSEA Document Number: TBD RPSEA Contract Number: 08121-2101-02 SwRI ® Project Number: 18.15490 Prepared by: Shane P. Siebenaler Rebecca A. Owston, Ph.D. Steven T. Green Angel M. Wileman Jessica M. Brysch Darin L. George, Ph.D. Southwest Research Institute ® 6220 Culebra Road San Antonio, TX 78238 Release Date: April 19, 2012 S O U T H W E S T R E S E A R C H I N S T I T U T E ® S A N A N T O N I O H O U S T O N D E T R O I T W A S H I N G T O N , D C RPSEA Project 08121-2101-02 ii April 19, 2012 New Safety Barrier Testing Methods SwRI  Project No. 18.15490 LEGAL NOTICE This report was prepared by Southwest Research Institute as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA

28

RPSEA Phase 2 Final Report: MSDC Electrical System for Deepwater Subsea Process  

NLE Websites -- All DOE Office Websites (Extended Search)

RPSEA RPSEA Phase 2 Final Report: MSDC Electrical System for Deepwater Subsea Process 08121.2901.01.FINAL Deep Water Electrical Power Distribution System and Power Components 08121-2901-01 November 19, 2013 Rixin Lai Senior Electrical Engineer General Electric Global Research One Research Circle, Niskayuna, NY 12309 LEGAL NOTICE This report was prepared by General Electric Global Research as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA members of RPSEA, the National Energy Technology Laboratory, the U.S. Department of Energy, nor any person acting on behalf of any of the entities: MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO ACCURACY, COMPLETENESS, OR USEFULNESS OF THE INFORMATION

29

RPSEA biogas report final  

NLE Websites -- All DOE Office Websites (Extended Search)

are bioconverted. 2. Identify organisms within microbial consortia associated with biogas generation from coal. 3. Characterize the influence of culture growth amendments and...

30

RPSEA FINAL TECHNICAL REPORT  

NLE Websites -- All DOE Office Websites (Extended Search)

fluid or fiber suspension) was then transferred to the settling cylinder. The back-light bulb was turned on before dropping the particle into the settling container. Step 3....

31

Microsoft Word - RPSEA Final Report RPSEA Format ns.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

halotolerant, sulfate---reducing bacterium isolated from exhaust water of a Tunisian oil refinery. Int J Syst Evol Microbiol 59: 1 059---63 12. Blum JS, Han S, Lanoil B,...

32

RPSEA_Final_Report_revised  

NLE Websites -- All DOE Office Websites (Extended Search)

November 2 8, 2 011 PI: G eorge J . M oridis (gjmoridis@lbl.gov) Co---PIs: M atthew T . R eagan ( LBNL), T homas A . B lasingame ( TAMU), M ichael N ikolaou ( UH) Additional A...

33

FINAL REPORT: RPSEA PROJECT NO.  

NLE Websites -- All DOE Office Websites (Extended Search)

Ultrasonic Inspection of Tension Leg Platforms," in Proceedings of the Sixth ASME Symposium on Offshore Mechanics and Arctic Engineering, (Houston,TX), 1987. 13 R. Thomas, L....

34

NETL: NEPA Categorical Exclusions - October 2013 to Present  

NLE Websites -- All DOE Office Websites (Extended Search)

3 to December 2013 3 to December 2013 Archive (November 2009 - Present) ARRA Date Title Recipient Name Location DOE/NETL Sponsors N 12/19/2013 Technology Integration Program Prime: RPSEA Sub: Houston Advanced Research Center Duncan, OK FE/SCNGO N 12/19/2013 Technology Integration Program Prime: RPSEA Sub: TAMU - San Antonio - IRNR Duncan, OK FE/SCNGO N 12/19/2013 Technology Integration Program Prime: RPSEA Sub: Ohio State University - CAR Columbus, OH FE/SCNGO N 12/19/2013 Technology Integration Program Prime: RPSEA Sub: Ohio State University - CAR Duncan, OK FE/SCNGO N 12/18/2013 Zonal Isolation Improvement for Horizontal Wells Drilling in the Marcellus Shale Prime: RPSEA Sub: CSI Technologies, LLC Multiple sites, PA FE/SCNGO N 12/18/2013 Vortex Induced Vibration Study for Deep Draft Column Stabilized Floaters Prime: RPSEA

35

RPSEA Phase 2 Final Report: MSDC Electrical System for Deepwater...  

NLE Websites -- All DOE Office Websites (Extended Search)

variable frequency voltage is generated by the VFD and boosted by a step-up topside transformer for transmission (e.g., 12 to 42 kV depending on the tieback distance) via a...

36

Microsoft Word - RPSEA 07121-1405.FINAL Report 022912.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

9 x LIST OF FIGURES (Continued) Figure Page 4-3 Photograph of convex and concave brass inserts used in the grips to apply a uniform clamping force across the curved section...

37

RPSEA UNCONVENTIONAL GAS CONFERENCE 2012: Geology, the Environment, Hydraulic Fracturing  

E-Print Network (OSTI)

Recovery and Salt Production - Jim Silva, GE Oil & Gas 9:30 a.m. Appalachian Shale and Barnett Area Water Shale Coalition 8:30 a.m. Meeting Overview & Agenda - Kent Perry, Vice President, Onshore Programs Isotope Interpretation Tools to Optimize Gas Shale Production - Yongchun Tang, PEER Institute Shale Gas

Yener, Aylin

38

Microsoft Word - RPSEA Draft Final Report.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

2010. Siemens, Level Measurement: http:www.sea.siemens.comusProductsProcess- InstrumentationProcess-Sensors-TransmittersPagesLevel-Measurement.aspx Southwest Research...

39

FE Blog  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

blog Office of Fossil Energy Forrestal Building 1000 blog Office of Fossil Energy Forrestal Building 1000 Independence Avenue, SW Washington, DC 20585202-586-6503 en Alert! Industry and Academia - The Energy Department Seeks Your Novel Ideas for Advanced Energy Systems http://energy.gov/fe/articles/alert-industry-and-academia-energy-department-seeks-your-novel-ideas-advanced-energy fe/articles/alert-industry-and-academia-energy-department-seeks-your-novel-ideas-advanced-energy" class="title-link">Alert! Industry and Academia - The Energy Department Seeks Your Novel Ideas for Advanced Energy Systems

40

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

RPSEA FE 3D at Depth SCNGO FY1224 months Gary Covatch Boulder, CO High Resolution 3D Laser Imaging for Inspection, Maintenance, Repair and Operations - Phase II Laboratory and...

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

RPSEA FE 3D at Depth SCNGO FY12 24 months Gary Covatch Boulder, CO High Resolution 3D Laser Imaging for Inspection, Maintenance, Repair and Operations - Phase II Laboratory and...

42

Cu-Fe  

Science Conference Proceedings (OSTI)

... Ternary Fe-Cu-Ni many-body potential to model reactor pressure vessel ... alloy, This file was provided by Giovanni Bonny (Nuclear Materials Science ...

2013-07-06T23:59:59.000Z

43

FE Clean Coal News  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

clean-coal-news Office of Fossil Energy Forrestal clean-coal-news Office of Fossil Energy Forrestal Building 1000 Independence Avenue, SW Washington, DC 20585202-586-6503 en NETL Innovations Recognized with R&D 100 Awards http://energy.gov/fe/articles/netl-innovations-recognized-rd-100-awards fe/articles/netl-innovations-recognized-rd-100-awards" class="title-link">NETL Innovations Recognized with R&D 100 Awards

44

FE Speeches and Testimony  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

speeches-and-testimony Office of Fossil Energy speeches-and-testimony Office of Fossil Energy Forrestal Building 1000 Independence Avenue, SW Washington, DC 20585202-586-6503 en DOE's Coal Research and Development http://energy.gov/fe/articles/does-coal-research-and-development-0 fe/articles/does-coal-research-and-development-0" class="title-link">DOE's Coal Research and Development

45

Santa Fe, New Mexico  

NLE Websites -- All DOE Office Websites (Extended Search)

Fe, New Mexico Fe, New Mexico May 29-31, 2013 Se q u e n c i n g , F i n i s h i n g , A n a ly s i s i n t h e F u t u r e M e e t i ng 8 t h A nn u a l 2013 SFAF Meeting Page 1 Contents Agenda Overview......................................... 3 May 29 th Agenda.................................. 11 Speaker Presentations (May 29 th ).................. 13 Meet and Greet Party w/ Food & Beverages... 39 Poster Session............................................ 41 May 30 th Agenda................................. 97 Speaker Presentations (May 30

46

NETL: NEPA Categorical Exclusions - April 2012 to June 2012  

NLE Websites -- All DOE Office Websites (Extended Search)

2 to June 2012 2 to June 2012 Archive (November 2009 - March 2012) ARRA Date Title Recipient Name Location DOE/NETL Sponsors N 6/28/2012 B7-8 Roof Replacements & B14-16 Demolitions NETL Albany Albany, OR FE/SOD/NETL/Albany N 6/27/2012 2009 National Biodiesel Foundation Biodiesel Infrastructure Project Prime: National Biodiesel Foundation Sub: Harms Oil Company Sioux Falls, SD EE/PMC/PVTD N 6/27/2012 Intelligent Casing - Intelligent Formations Telemetry (ICIFT) System Prime: RPSEA Sub: DrillRight Oklahoma City, OK FE/SCNGO N 6/27/2012 Intelligent Casing - Intelligent Formations Telemetry (ICIFT) System Prime: RPSEA Sub: University of Oklahoma, Main Campus Norman, OK FE/SCNGO N 6/27/2012 Intelligent Casing - Intelligent Formations Telemetry (ICIFT) System Prime: RPSEA

47

Microsoft Word - RPSEA_FractureArea_FinalReport_DRAFT2_8Apr2013...  

NLE Websites -- All DOE Office Websites (Extended Search)

trock poin r failure of t ure 7.4 sho ant embedm at will be e conductiv content from testing of p es, provides r-wellbore f ction due to that contro of the pro ly productio...

48

FE Petroleum Reserves News  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

petroleum-reserves-news Office of Fossil Energy petroleum-reserves-news Office of Fossil Energy Forrestal Building 1000 Independence Avenue, SW Washington, DC 20585202-586-6503 en President Requests $638.0 Million for Fossil Energy Programs http://energy.gov/fe/articles/president-requests-6380-million-fossil-energy-programs fe/articles/president-requests-6380-million-fossil-energy-programs" class="title-link">President Requests $638.0 Million for Fossil Energy Programs

49

FE Transition Deliverables  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transition Deliverables Transition Deliverables To: Cynthia Quarterman From: Charles Roy, FE-3 Date: 12/04/08 Re: On 12/03/08 Cynthia Quarterman requested a list of major projects with quick starts and job creation from Vic Der. Attached is a hard copy of this document. An electronic version of this document will be submitted to Cynthia Quarterman through the Office of Management. If there are any questions, please contact Charles Roy at 202-586-8977. ,^ (^// Cc~y Major Projects with Quick Starts & Jobs Creation Office of Clean Coal Summary of Projects and Job Creation The following table outlines the near-term possibilities for projects that capture and sequester carbon from coal-based systems. The potential jobs associated with these activities are listed along with likely construction and operation dates. Since the funding

50

DE-FE0000833  

NLE Websites -- All DOE Office Websites (Extended Search)

An Integrated Water Treatment Technology Solution for An Integrated Water Treatment Technology Solution for Sustainable Water Resource Management in the Marcellus Shale DE-FE0000833 Final Scientific / Technical Report Report Date: June 30, 2011 Team Members: Altela, Inc. Argonne National Laboratory BLX, Inc. CWM Environmental, Inc. Point of Contact: Matthew Bruff Altela, Inc. Phone: 303-993-1951 Facsimile: 303-993-1955 Email: matthew.bruff@altelainc.com DISCLAIMER: "This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereto, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus,

51

Fe-rich FeSiBPCu Nano-crystalline Soft Magnetic Alloys ...  

Science Conference Proceedings (OSTI)

Symposium, Magnetic Materials for Energy Applications IV ... Fe-rich FeSiBPCu Nano-crystalline Soft Magnetic Alloys Contributable To Energy-saving. Author(s) ...

52

Microsoft Word - Fe-S_Clusters  

NLE Websites -- All DOE Office Websites (Extended Search)

structure of an intermediate form of FeFe- hydrogenase (HydA EFG ) from the green algae Chlamydomonas reinhardtii expressed in Escherichia coli in a genetic background devoid...

53

FE Press Releases and Techlines  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

fe/techlines Office of Fossil Energy Forrestal Building fe/techlines Office of Fossil Energy Forrestal Building 1000 Independence Avenue, SW Washington, DC 20585202-586-6503 en Energy Department Authorizes Additional Volume at Proposed Freeport LNG Facility to Export Liquefied Natural Gas http://energy.gov/articles/energy-department-authorizes-additional-volume-proposed-freeport-lng-facility-export Energy Department Authorizes Additional Volume at Proposed Freeport LNG Facility to Export Liquefied Natural Gas

54

NETL: NEPA Categorical Exclusions - October 2012 to December 2012  

NLE Websites -- All DOE Office Websites (Extended Search)

2 to December 2012 2 to December 2012 Archive (November 2009 - September 2012) ARRA Date Title Recipient Name Location DOE/NETL Sponsors N 01/08/2013 Building 4 Drain Line Replacement Prime: TBD Sub: TBD Albany, OR FE/OIO/Site Operations Division N 01/08/2013 Idaho Petroleum Reduction Leadership Project Prime: UNDEERC Sub: Accelergy Corporation Grand Forks, ND FE/SCC/Fuels Division Y 12/27/2012 Idaho Petroleum Reduction Leadership Project Prime: Treasure Valley Clean Cities Coalition Sub: Ada County Boise City, ID EE/PMC/PVTD N 12/21/2012 Synthetic Hurricane Risk Model for the Gulf of Mexico Prime: RPSEA Sub: Applied Research Associates, Inc. Raleigh, NC FE/SCNGO N 12/21/2012 Synthetic Hurricane Risk Model for the Gulf of Mexico Prime: RPSEA Sub: OceanWeather Inc. Cos Cob, CT FE/SCNGO

55

Spin-torque diode spectrum of ferromagnetically coupled (FeB/CoFe)/Ru/(CoFe/FeB) synthetic free layer  

SciTech Connect

We investigated systematically the spin torque diode spectrum of a ferromagnetically coupled (FeB/CoFe)/Ru/(CoFe/FeB) synthetic free layer in an MgO-based magnetic tunnel junction. In the spectra, we observed single peaks shifted to higher frequency with increasing the in-plane magnetic fields, as expected from the ferromagnetic resonance of the FeB/CoFe adjacent to the MgO tunnel barrier. On the other hand, under the perpendicular fields, we observed several peaks below 6 GHz and around 10 GHz, which were rather insensitive to the field. These behaviors are different from our simple calculation taking account the interlayer coupling, suggesting that the excitation of magnetizations occurs in a complicated manner for the synthetic free layers.

Bang, Do; Taniguchi, Tomohiro; Kubota, Hitoshi; Yorozu, Takehiko; Imamura, Hiroshi; Yakushiji, Kay; Fukushima, Akio; Yuasa, Shinji; Ando, Koji [National Institute of Advanced Industrial Science and Technology (AIST), Central 2, Umezono 1-1-1, Tsukuba, Ibaraki 305-8568 (Japan)

2012-04-01T23:59:59.000Z

56

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

An Assessment of Analytical An Assessment of Analytical Capabilities, Services, and Tools for Demand Response Prepared for the National Forum on the National Action Plan on Demand Response: Estimation Tools and Methods Working Group AUTHORS: Andrew Satchwell and Charles Goldman-Lawrence Berkeley National Laboratory Hossein Haeri and Mark Lesiw-The Cadmus Group, Inc. National Forum of the National Action Plan on Demand Response An Assessment of Analytical Capabilities, Services, and Tools for Demand Response was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be

57

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Progress Progress Energy Carolinas-Bob Donaldson Prepared for the National Forum on the National Action Plan on Demand Response: Program Design and Implementation Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview: Progress Energy Carolinas-Bob Donaldson was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be conducted by DOE and FERC. Given the rapid development of the demand response industry, DOE and FERC decided

58

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Con Con Edison-Col Smart Prepared for the National Forum on the National Action Plan on Demand Response: Program Design and Implementation Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview: Con Edison-Col Smart was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be conducted by DOE and FERC. Given the rapid development of the demand response industry, DOE and FERC decided

59

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gulf Gulf Power-David Eggart Prepared for the National Forum on the National Action Plan on Demand Response: Program Design and Implementation Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview: Gulf Power-David Eggart was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be conducted by DOE and FERC. Given the rapid development of the demand response industry, DOE and FERC decided

60

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PJM PJM Interconnection-Pete Langbein Prepared for the National Forum on the National Action Plan on Demand Response: Program Design and Implementation Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview: PJM Interconnection-Pete Langbein was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be conducted by DOE and FERC. Given the rapid development of the demand response industry, DOE and FERC decided

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

An Assessment of Analytical An Assessment of Analytical Capabilities, Services, and Tools for Demand Response Prepared for the National Forum on the National Action Plan on Demand Response: Estimation Tools and Methods Working Group AUTHORS: Andrew Satchwell and Charles Goldman-Lawrence Berkeley National Laboratory Hossein Haeri and Mark Lesiw-The Cadmus Group, Inc. National Forum of the National Action Plan on Demand Response An Assessment of Analytical Capabilities, Services, and Tools for Demand Response was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be

62

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Southern Southern California Edison-Paul Kasick Prepared for the National Forum on the National Action Plan on Demand Response: Program Design and Implementation Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview: Southern California Edison-Paul Kasick was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be conducted by DOE and FERC. Given the rapid development of the demand response industry, DOE and FERC decided

63

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

program focus on the distribution system. Then there's also NYPA, which is the New York Power Authority, which supplies energy to all of the state government buildings, and they...

64

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

and they can do something different during an event day. For those customers that aren't home or don't have any usage during that period of time, PTR is really not going to be a...

65

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

think we all wanted to start with this belief that every single interval for every single home would have a well-qualified usage figure, and that we could grab that data and bill...

66

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview: PJM...

67

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview:...

68

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that...

69

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reliant Reliant Energy-Bill Harmon Prepared for the National Forum on the National Action Plan on Demand Response: Program Design and Implementation Working Group AUTHOR: Dan Delurey-Association for Demand Response and Smart Grid National Forum of the National Action Plan on Demand Response Case Study Interview: Reliant Energy-Bill Harmon was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be conducted by DOE and FERC. Given the rapid development of the demand response industry, DOE and FERC decided

70

Fe  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

A Framework for Evaluating the A Framework for Evaluating the Cost-Effectiveness of Demand Response Prepared for the National Forum on the National Action Plan on Demand Response: Cost-effectiveness Working Group AUTHORS: Tim Woolf & Erin Malone-Synapse Energy Economics Lisa Schwartz & John Shenot-Regulatory Assistance Project National Forum of the National Action Plan on Demand Response A Framework for Evaluating the Cost-Effectiveness of Demand Response was developed to fulfill part of the Implementation Proposal for The National Action Plan on Demand Response, a report to Congress jointly issued by the U.S. Department of Energy (DOE) and the Federal Energy Regulatory Commission (FERC) in June 2011. Part of that implementation proposal called for a "National Forum" on demand response to be

71

Fe  

NLE Websites -- All DOE Office Websites (Extended Search)

Gulf Power-David Eggart Prepared for the National Forum on the National Action Plan on Demand Response: Program Design and Implementation Working Group AUTHOR: Dan...

72

Underwater Explosive Shock Consolidation of Nanocomposite Pr2Fe14B/-Fe Magnetic Powders  

E-Print Network (OSTI)

PR O O FS Underwater Explosive Shock Consolidation of Nanocomposite Pr2Fe14B/-Fe Magnetic Powders; Accepted January 6, 2005) Keywords: explosive compaction, underwater shock wave, nanocomposites, magnetic

Liu, J. Ping

73

Stabilization of Chromium-Based Slags with FeS2 and FeSO4  

Science Conference Proceedings (OSTI)

Selective Recovery of Gold from E-wastes by Using Cellulosic Wastes Stabilization of Chromium-Based Slags with FeS2 and FeSO4 Sulphide Precipitation...

74

Coupled Fe(II)-Fe(III) Electron and Atom Exchange as a Mechanism for  

E-Print Network (OSTI)

Coupled Fe(II)-Fe(III) Electron and Atom Exchange as a Mechanism for Fe Isotope Fractionation I C E . R O D E N , A N D B R I A N L . B E A R D Department of Geology and Geophysics, University (DIR) is an important pathway for carbon oxidation in anoxic sediments, and iron isotopes may

Roden, Eric E.

75

InP:Fe Photoconducting device  

SciTech Connect

A photoconducting device fabricated from Fe-doped, semi-insulating InP crystals exhibits an exponential decay transient with decay time inversely related to Fe concentration. Photoconductive gain as high as 5 is demonstrated in photoconducting devices with AuGe and AuSn contacts. Response times from 150 to 1000 picoseconds can be achieved.

Hammond, Robert B. (Los Alamos, NM); Paulter, Nicholas G. (Albuquerque, NM); Wagner, Ronald S. (Los Alamos, NM)

1984-01-01T23:59:59.000Z

76

URTAC Meeting - January 2008 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Committee Section 999 Timeline 2008 - 2010 URTAC Member Appointment Process DOENETL Oil & Gas Program Overview RPSEA Unconventional Onshore and Small Producers Program RPSEA...

77

NETL: Consortium - Research Partnership to Secure Energy for...  

NLE Websites -- All DOE Office Websites (Extended Search)

Oil and Natural Gas Supply Consortium Role in Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program RPSEA logo RPSEA Administered Project Information...

78

Enhancement of magnetoresistance using CoFe/Ru/CoFe synthetic ferrimagnetic pinned layer in BiFeO{sub 3} based spin-valves  

SciTech Connect

SrTiO{sub 3} (100) sub/BiFeO{sub 3}/CoFe/Ru/CoFe/Cu/CoFe/Ta structure was prepared by a combination of chemical solution deposition and sputtering method, and followed by a systematical investigation for the structural, magnetic and magnetoresistance properties at room temperature (RT) as a function of CoFe and Ru thicknesses. It was revealed that introduction of synthetic CoFe/Ru/CoFe as a pinning layer increased the giant magentoresistance (MR) ratio to 8.3% at RT. This enhancement of MR ratio might be attributed to (i) the increase of pinning field, and (ii) suppression of the influence of the surface roughness of BiFeO{sub 3} by inserting the synthetic CoFe/Ru/CoFe layer.

Naganuma, Hiroshi; Kubota, Miho; Inami, Nobuhito; Kawada, Yuki; Oogane, Mikihiko; Ando, Yasuo [Department of Applied Physics, Graduate School of Engineering, Tohoku University, 6-6-05 Aoba Aramaki Aoba-ku, Sendai 980-8579 (Japan); Bae, In-Tae [Small Scale Systems Integration and Packaging Center, State University of New York at Binghamton, Binghamton, New York 13902 (United States); Miyazaki, Takamichi [Tohoku University, Department of Instrumental Analysis, 6-6-11 Aoba, Aramaki, Aoba, Sendai 980-8579 (Japan); Mizukami, Shigemi [WPI Advanced Institute for Materials Research, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 (Japan); Han, X. F. [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)

2012-08-13T23:59:59.000Z

79

Annual Planning Summaries: Fossil Energy (FE) | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fossil Energy (FE) Annual Planning Summaries: Fossil Energy (FE) Document(s) Available For Download January 31, 2012 2012 Annual Planning Summary for Fossil Energy, National Energy...

80

Phase transformation of Mg-Fe alloys  

SciTech Connect

An Mg-Fe alloy system prepared through mechanical alloying (MA) was structurally analyzed. MA can produce single-phase bcc alloys using Mg concentrations up to about 15 mol %. Use of conventional average structure analysis and x-ray pair-distribution function method enabled the long-range and short-range order structures of the Mg-Fe alloys to be bridged. The substituted Mg atoms were randomly arranged in the low-Mg composition but started to have an order structure. The partially ordered Mg-Fe alloy undergoes an austenitic (cubic) to martensitic (orthorhombic) phase change, as increasing Mg composition.

Yoneda, Yasuhiro [Synchrotron Radiation Research Unit, Japan Atomic Energy Agency, 1-1-1 Kouto, Sayo-cho Sayo-gun, Hyogo 679-5148 (Japan); Abe, Hiroshi; Ohshima, Takeshi [Department of Material development, Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan); Uchida, Hirohisa [Department of Applied Physics, Graduate and Undergraduate Schools of Engineering, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa 259-1292 (Japan)

2010-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

FE - Fossil Energy - Energy Conservation Plan  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(1) (1) Office of Fossil Energy Energy Conservation Plan The Office of Fossil Energy (FE) strongly supports the implementation of strategies to reduce energy consumption in the Headquarters buildings. FE engaged its employees by sending an office-wide email soliciting input for this plan; the ideas were then compiled into this document. The focus of this plan is on how FE employees can change their behavior to reduce energy consumption. This plan purposefully excludes measures that would require any significant capital investment. The measures outlined below in each category can be implemented without much effort and with minimal cost and will reduce the energy used by Fossil Energy employees in the Forrestal and Germantown buildings. FE recognizes that transparency is a key element of a successful energy conservation

82

Through its Clean Coal Research Program, FE  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

its inception as part of DOE in 1977, FE's its inception as part of DOE in 1977, FE's R&D mission has continued to evolve to reflect the nation's key energy supply, security and environmental needs. Coal represents 93 percent of total U.S. fossil fuel reserves and is the largest single source (45 percent) of electricity generation, both currently and projected for the foreseeable future. It also is among the most carbon- intensive energy resources. Continuing the legacy of previous successes in the Clean Coal Technology Development Program, FE R&D today is focusing on ways to continue using this vital source of energy while minimizing atmospheric CO 2 emissions. Through its Clean Coal Research Program, FE is in the forefront of global efforts to develop and

83

Facile Synthesis of a-Fe2O3 Nanorods Derived from a-FeOOH ...  

Science Conference Proceedings (OSTI)

Symposium, Nanostructured Materials for Rechargeable Batteries and Supercapacitors II. Presentation Title, Facile Synthesis of a-Fe2O3 Nanorods Derived...

84

LaFeCoSi- and GdFeAl-Based Composites with Enhanced ...  

Science Conference Proceedings (OSTI)

Symposium, Magnetic Materials for Energy Applications -III ... Performance and Endurance of Nd-Fe-B Sintered Magnets in E-Motor Application Conditions.

85

The Office of Fossil Energy's (FE) Clean  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Office of Fossil Energy's (FE) Clean Office of Fossil Energy's (FE) Clean Coal Technology Demonstration Program (1986-1993) laid the foundation for effective technologies now in use that have helped significantly lower emissions of sulfur dioxide (SO 2 ), nitrogen oxides (NO x ) and airborne particulates (PM 10 ). The program forged cost-sharing partnerships between the U.S. Department of Energy, industry, universities and technology suppliers and users.

86

Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) Decontamination & Decommissioning/ Facilities Engineering (D&D/FE) As the DOE complex sites prepare for closure, a large number of buildings and facilities must be deactivated and decommissioned. These facilities contain many complex systems (e.g. ventilation), miles of contaminated pipelines, glove boxes, and unique processing equipment that require labor intensive deactivation and decommissioning methods. Although

87

FE Clean Energy Group | Open Energy Information  

Open Energy Info (EERE)

FE Clean Energy Group FE Clean Energy Group Jump to: navigation, search Name FE Clean Energy Group Place Darien, Connecticut Zip 6820 Sector Efficiency Product A Private Equity Fund Manager which specializes in investments in energy efficiency and emissions reductions in emerging markets. Coordinates 42.60182°, -88.713134° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.60182,"lon":-88.713134,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

88

Non-stoichiometric Fe{sub x}WN{sub 2}: Leaching of Fe from layer-structured FeWN{sub 2}  

SciTech Connect

Non-stoichiometric Fe{sub x}WN{sub 2} (x{approx}0.72) was synthesized via leaching of Fe from layer-structured stoichiometric FeWN{sub 2} by soaking in sulfuric acid at ca. 50 deg. C. The synthesized products were characterized by powder X-ray diffraction (pXRD), secondary electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and magnetic measurements. Non-stoichiometric Fe{sub x}WN{sub 2} has the same symmetry unit cell as stoichiometric FeWN{sub 2} (P6{sub 3}/mmc), but the lattice parameters change: the a-axis expands by 0.16% while the c-axis decreases by 1.5%. Polycrystalline powder of Fe{sub x}WN{sub 2} showed similar morphologies as those of FeWN{sub 2}. The calculated electronic structure of stoichiometric FeWN{sub 2} shows a more ionic-bonding character between Fe and N than that between W and N, which presumably allows for the partial Fe leaching from between the W-N prismatic layers. The magnetic susceptibility of Fe{sub x}WN{sub 2} smoothly decreases with increasing temperature from 3 to 300 K, unlike the broad maximum seen near 27 K in stoichiometric FeWN{sub 2}. - Graphical abstract: Non-stoichiometric Fe{sub x}WN{sub 2} (x{approx}0.72) was synthesized via leaching of Fe from layer-structured stoichiometric FeWN{sub 2} by soaking in sulfuric acid at ca. 50 deg. C.

Miura, Akira; Wen Xiaodong [Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301 (United States); Abe, Hideki [National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 NIMS (Japan); Yau, Grace [Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301 (United States); DiSalvo, Francis J., E-mail: fjd3@cornell.ed [Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301 (United States)

2010-02-15T23:59:59.000Z

89

Membrane separation advances in FE hydrogen program  

Science Conference Proceedings (OSTI)

Since its inception in Fiscal Year 2003 the US Office of Fossil Energy (FE) Hydrogen from Coal Program has sponsored more than 60 projects and made advances in the science of separating out pure hydrogen from syngas produced through coal gasification. The Program is focusing on advanced hydrogen separation technologies, which include membranes, and combining the WGS reaction and hydrogen separation in a single operation known as process intensification. The article explains the technologies and describes some key FE membrane projects. More details are available from http://www.fossil.energy.gov. 1 fig.

NONE

2007-12-31T23:59:59.000Z

90

Microsoft Word - RMOTC FE EERE release  

NLE Websites -- All DOE Office Websites (Extended Search)

October 9, 2009 The Rocky Mountain Oilfield Testing Center (RMOTC) is providing the following information on local activities: Geothermal Research Initiative at RMOTC (Casper, WY) - The Rocky Mountain Oilfield Testing Center (RMOTC) announces its involvement in a new collaboration between the U.S. Department of Energy's offices of Fossil Energy (FE) and Energy Efficiency and Renewable Energy's (EERE) to demonstrate low-temperature geothermal electrical power generation systems using oilfield fluids produced at the Naval Petroleum Reserve #3 (NPR-3) near Midwest, Wyo. RMOTC, part of FE's Office of Oil and Natural Gas, will work directly with EERE's Geothermal

91

Optimization of Ti addition in Fe for Fe-Ti-N thin films  

Science Conference Proceedings (OSTI)

In this work we studied the magnetic and structural properties of Fe{sub 1-x}Ti{sub x}(x=0, 0.02, 0.05, 0.07) thin films prepared with dc-magnetron sputtering. It was found that the inter-atomic spacing increases as the amount of Ti is increased indicating that Ti is getting dissolved substitutionally in Fe lattice. We found that the addition of 5% Ti is best suited for its usage in Fe-Ti-N alloys.

Tayal, Akhil; Gupta, Mukul; Gupta, Ajay; Stahn, Jochen; Horisberger, M. [UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore, 452001 (India); Laboratory for Neutron Scattering, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland); Laboratory for Developments and Methods, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)

2012-06-05T23:59:59.000Z

92

Oxygen-Induced Symmetrization and Structural Coherency in Fe/MgO/Fe(001) Magnetic Tunnel Junctions  

Science Conference Proceedings (OSTI)

We present x-ray diffraction experiments and multiple-scattering calculations on the structure and transport properties of a Fe/MgO/Fe(001) magnetic tunnel junction (MTJ). Coherent growth of the top Fe electrode on the MgO spacer is observed only for Fe deposition in ambient oxygen atmosphere leading to a coherent and symmetric MTJ structure characterized by FeO layers at both Fe/MgO interfaces. This goes in parallel with calculations indicating large positive tunnel magnetoresistance (TMR) values in such symmetric junctions. The results have important implications for achieving giant TMR values.

Tusche, C.; Meyerheim, H.L.; Ernst, A.; Henk, J.; Bruno, P.; Kirschner, J. [Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Germany); Jedrecy, N. [Institut des NanoSciences de Paris, Universites Paris 6 et 7, et CNRS-UMR 7588, 4 place Jussieu, F-75252 Paris Cedex 05 (France); Renaud, G. [CEA-Grenoble, 17 rue des Martyrs, F-38054 Grenoble (France)

2005-10-21T23:59:59.000Z

93

FE annual Report Bioprocessing of Fossil Fuels  

E-Print Network (OSTI)

FE annual Report July 2004 Bioprocessing of Fossil Fuels Abhijeet Borole, Life Sciences Division The overall objective of this research program is to develop novel technologies for processing fossil fuels energy-efficient. Processes based on oxidative as well as reductive reactions are being investigated

94

2011 Annual Planning Summary for Fossil Energy (FE)  

Energy.gov (U.S. Department of Energy (DOE))

The ongoing and projected Environmental Assessments and Environmental Impact Statements for 2011 and 2012 within Fossil Energy (FE).

95

Phototrophic Fe(II) Oxidation Promotes Organic Carbon Acquisition  

E-Print Network (OSTI)

Anoxygenic phototrophic Fe(II) oxidation is usually considered to be a lithoautotrophic metabolism that contributes to primary production in Fe-based ecosystems. In this study, we employed Rhodobacter capsulatus SB1003 as a model organism to test the hypothesis that phototrophic Fe(II) oxidation can be coupled to organic carbon acquisition. R. capsulatus SB1003 oxidized Fe(II) under anoxic conditions in a light-dependent manner, but it failed to grow lithoautotrophically on soluble Fe(II). When the strain was provided with Fe(II)-citrate, however, growth was observed that was dependent upon microbially catalyzed Fe(II) oxidation, resulting in the formation of Fe(III)-citrate. Subsequent photochemical breakdown of Fe(III)-citrate yielded acetoacetic acid that supported growth in the light but not the dark. The deletion of genes (RRC00247 and RRC00248) that encode homologs of atoA and atoD, required for acetoacetic acid utilization, severely impaired the ability of R. capsulatus SB1003 to grow on Fe(II)-citrate. The growth yield achieved by R. capsulatus SB1003 in the presence of citrate cannot be explained by lithoautotrophic growth on Fe(II) enabled by indirect effects of the ligand [such as altering the thermodynamics of Fe(II) oxidation or preventing cell encrustation]. Together, these results demonstrate that R. capsulatus SB1003 grows photoheterotrophically on Fe(II)-citrate. Nitrilotriacetic acid also supported light-dependent growth on Fe(II), suggesting that Fe(II) oxidation may be a general mechanism whereby some Fe(II)-oxidizing bacteria mine otherwise inaccessible organic carbon sources.

Rhodobacter Capsulatus Sb; Nicky C. Caiazza; Douglas P. Lies; Dianne K. Newman

2006-01-01T23:59:59.000Z

96

Probing The Electronic Structure of the Di-iron Subsite of[Fe] -hydrogenase: A Photoelectron Spectroscopic Study of Fe(I)- Fe(I) Model Complexes  

Science Conference Proceedings (OSTI)

The electronic structures of a series of Fe(I)-Fe(I) model complexes of the di-iron subsite of[Fe]-hydrogenase,[(mu- PDT)Fe-2(CO)(4)(CN)(2)](2-) (1),[Fe- 2(CO)(4)(MeSCH2C(Me)(CH2S)(2))(CN)(2)](2-) (II),[Fe- 2(CO)(4)(PhCH2SCH2C(Me)-(CH2S)(2))(CN)(2)](2-) (III),[Fe- 2(CO)(4)(PhCH2SCH2C(Me) (CH2S)(2))(CN)](-) (IV), and[Fe- 2(CO)(4)(MeSCH2C(Me)(CH2S)(2))(CN)](-) (V), were investigated in the gas phase using photodetachment photoelectron spectroscopy. The adiabatic electron detachment energy (ADE) of each species and the intramolecular Coulomb repulsion for the doubly charged species were obtained. The ADEs correspond to the intrinsic redox potentials (in vacuo) of reactions involving the Fe(I)-Fe(I)/Fe(I)-Fe(II) couples in these compounds. The photoelectron spectra were understood and qualitatively assigned by comparing with that of Fe-2(CO)(6)S- 2, which has been well studied previously and exhibits similar valence spectral features as I-V. A''normal level scheme'' is suggested for the electronic structure of these low spin di- iron compounds, in which all occupied 3d levels lie above all occupied ligand levels. We also observed subtle differences in the electronic structures of the five di-iron complexes due to the slightly different ligand environments.

Yang, Xin; Razavet, Mathieu; Wang, Xue B.; Pickett, Chris J.; Wang, Lai S.

2003-06-12T23:59:59.000Z

97

FE Petroleum Reserves News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Petroleum Reserves News Petroleum Reserves News FE Petroleum Reserves News RSS April 10, 2013 President Requests $638.0 Million for Fossil Energy Programs President Obama's FY 2014 budget seeks $638.0 million for the Office of Fossil Energy (FE) to advance technologies related to the reliable, efficient, affordable and environmentally sound use of fossil fuels as well as manage the Strategic Petroleum Reserve and Northeast Home Heating Oil Reserve to provide strategic and economic security against disruptions in U.S. oil supplies. November 9, 2012 Energy Department Provides Additional Emergency Fuel Loan to Department of Defense as Part of Hurricane Sandy and Nor'easter Recovery As part of the government-wide response and recovery effort for Hurricane Sandy and the Nor'easter, the Energy Department is providing the

98

Model of Fe Nanostripes on Cu(111)  

Science Conference Proceedings (OSTI)

Magnetization as a function of temperature calculated with Monte Carlo techniques is compared to experimental results of Fe stripes grown on vicinal Cu(111) surfaces. The stripes are step decorations grown with molecular beam epitaxy (MBE), are 1-2 monolayers thick, and display perpendicular magnetization. The atomic parameters are determined from fully relativistic electronic structure calculations. The moments are found to be 2.57 {micro}{sub B}, with some variation due to film thickness, and uniaxial anisotropy of 40 {micro}Ry/atom for Fe atoms facing vacuum. The Heisenberg model extended to include crystalline anisotropy as well as dipole-dipole interactions is considered for two different values of the exchange constant: J = 20 and 2 meV. Under a large applied field (4000 G), the calculated saturation magnetization falls slowly from 507 emu/cm{sup 3} with an increase in temperature until it falls rapidly around 600 K, after which a more modest falloff with an increase in temperature is observed. For larger J the rapid change occurs for higher temperatures. The importance of disorder in the height and width of the stripes is investigated by generating stripe geometries with a model that incorporates nucleation and growth of Fe particles at step edges under the constraint of constant deposition from MBE. The primary effect of disorder in the stripes is to reduce the saturated magnetization at lower temperatures.

Brown, G. [Florida State University; Lee, H. K. [University of Georgia, Athens, GA; Schulthess, Thomas C [ORNL; Ujfalussy, Balazs [ORNL; Stocks, George Malcolm [ORNL; Butler, William H [ORNL; Landau, David P [ORNL; Pierce, John Philip [ORNL; Shen, Jian [ORNL; Kirschner, Jurgen M [ORNL

2002-01-01T23:59:59.000Z

99

Incorporation of oxidized uranium into Fe (hydr)oxides during Fe(II) catalyzed remineralization  

SciTech Connect

The form of solid phase U after Fe(II) induced anaerobic remineralization of ferrihydrite in the presence of aqueous and absorbed U(VI) was investigated under both abiotic batch and biotic flow conditions. Experiments were conducted with synthetic ground waters containing 0.168 mM U(VI), 3.8 mM carbonate, and 3.0 mM Ca{sup 2+}. In spite of the high solubility of U(VI) under these conditions, appreciable removal of U(VI) from solution was observed in both the abiotic and biotic systems. The majority of the removed U was determined to be substituted as oxidized U (U(VI) or U(V)) into the octahedral position of the goethite and magnetite formed during ferrihydrite remineralization. It is estimated that between 3% and 6% of octahedral Fe(III) centers in the new Fe minerals were occupied by U(VI). This site specific substitution is distinct from the non-specific U co-precipitation processes in which uranyl compounds, e.g. uranyl hydroxide or carbonate, are entrapped with newly formed Fe oxides. The prevalence of site specific U incorporation under both abiotic and biotic conditions and the fact that the produced solids were shown to be resistant to both extraction (30 mM KHCO{sub 3}) and oxidation (air for 5 days) suggest the potential importance of sequestration in Fe oxides as a stable and immobile form of U in the environment.

Nico, Peter S.; Stewart, Brandy D.; Fendorf, Scott

2009-07-01T23:59:59.000Z

100

Activation of the S-H Group in Fe(2-SH)Fe Clusters: S-H Bond Strengths and Free Radical Reactivity of the Fe(2-SH)Fe Cluster  

DOE Green Energy (OSTI)

Absolute rate constants were determined for the abstraction of hydrogen atom from (OC)3Fe(?-SH)2Fe(CO)3 (Fe2S2H2) and (OC)3Fe(?-SCH3)(?-SH)Fe(CO)3 (Fe2S2MeH) by benzyl radical in benzene. From the temperature dependent rate data for Fe2S2H2, ?H and ?S were determined to be 2.03 ? 0.56 kcal/mol and 19.3 ? 1.7 cal/mol K, respectively, giving kabs = 1.2 ? 107 M 1 s 1 at 25?C. For Fe2S2MeH, ?H and ?S were determined to be 1.97 ? 0.46 kcal/mol and 18.1 ? 1.5 cal/mol K, respectively, giving kabs = 2.3 ? 107 M 1 s 1 at 25?C. Temperature dependent rate data are also reported for hydrogen atom abstraction by benzyl radical from thiophenol (?H = 3.62 ? 0.43 kcal/mol, ?S = 21.7 ? 1.3 cal/mol K) and H2S (?H = 5.13 ? 0.99 kcal/mol, ?S = 24.8 ? 3.2 cal/mol K), giving kabs at 25?C of 2.5 ? 105 and 4.2 ? 103 M 1 s 1, respectively. DFT calculations predict S-H bond strengths of 73.1 and 73.2 kcal/mol for Fe2S2H2 and Fe2S2MeH, respectively. Free energy and NMR chemical shift calculations confirm the NMR assignments and populations of Fe2S2H2 and Fe2S2MeH isomers. Derived radicals Fe2S2H and Fe2S2Me exhibit singly occupied HOMOs with unpaired spin density distributed between the two Fe atoms, a bridging sulfur, and d?-bonding between Fe centers. The S-H solution bond dissociation free energy (SBDFE) of Fe2S2MeH was found to be 69.4 1.7 kcal/mol by determination of its pKa (16.0 0.4) and the potential for the oxidation of the anion, Fe2S2Me- of 0.26 0.05 V vs. ferrocene in acetonitrile (corrected for dimerization of Fe2S2Me). This SBDFE for Fe2S2MeH corresponds to a gas phase bond dissociation enthalpy (BDE) of 74.2 kcal/mol, in satisfactory agreement with the DFT value of 73.2 kcal/mol. Replacement of the Fe-Fe bond in Fe2S2MeH with bridging ?-S (Fe2S3MeH) or ?-CO (Fe2S2(CO)MeH) groups leads to (DFT) BDEs of 72.8 and 66.2 kcal/mol, the latter indicating dramatic effects of choice of bridge structure on S-H bond strengths. These results provide a model for the reactivity of hydrosulfido sites of low-valent heterogeneous FeS catalysts. This work was supported by the US Department of Energy's Office of Basic Energy Sciences, Chemical Sciences program. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.

Franz, James A.; Lee, Suh-Jane; Bowden, Thomas A.; Alnajjar, Mikhail S.; Appel, Aaron M.; Birnbaum, Jerome C.; Bitterwolf, Thomas E.; Dupuis, Michel

2009-10-28T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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101

Atomistic Modeling of Screw Dislocation Mobility in Alpha-Fe  

Science Conference Proceedings (OSTI)

Register as a New User ... Presentation Title, Atomistic Modeling of Screw Dislocation Mobility in Alpha-Fe. Author(s), Neeraj S. Thirumalai, Peter Gordon, Ju Li,...

102

Development of Ni-Fe Hydrogenation Catalyst from D. Gigas ...  

Development of Ni-Fe Hydrogenation Catalyst from D. Gigas Hydrogenase Note: The technology described above is an early stage opportunity. Licensing rights to this ...

103

Microstructural Characterization of Fe-Mn-C Ternary Alloy under ...  

Science Conference Proceedings (OSTI)

Mercury Oxidation and Capture over SCR Catalysts in Simulated Coal Combustion Flue Gas Microstructural Characterization of Fe-Mn-C Ternary Alloy under...

104

Microsoft Word - FE PSRP 08-19-09 _3_.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PSRP Name: Fossil Energy Research & Development (R&D) PSRP Lead Program Office andor LaboratorySite Office: Office of Fossil Energy (FE)National Energy Technology Laboratory...

105

Novel Approaches to Microstructural Characterisation in NdFeB ...  

Science Conference Proceedings (OSTI)

Application of Nd-Fe-B Magnets to the Megawatt Scale Generator for the Wind Turbine Bonded Magnetocaloric Powders for the Refrigeration Application.

106

Electrochemical Performance of LiFeMnPO4  

Science Conference Proceedings (OSTI)

Symposium, Energy Storage: Materials, Systems, and Applications. Presentation Title, Electrochemical Performance of LiFeMnPO4: A Comparison of Synthesis...

107

Controlling Composition at the Individual FePt Nanoparticle Level  

Science Conference Proceedings (OSTI)

CNT Based Thermoelectric Devices for Energy Harvesting Controlling Composition at the Individual FePt Nanoparticle Level Corrosion Rates and Mechanical...

108

Localized Phase Transformation in Amorphous Fe-Si-B Ribbons ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Fe-based amorphous alloys are used in modern transformers to reduce the core losses as they exhibit excellent permeability and increased...

109

C50 Mill Scale for Synthesis of FeNi and FeNiCo Alloys through ...  

Science Conference Proceedings (OSTI)

D14 Gold Nanoparticles in Red Ruby Glasses Used for Decoration in Thailand D15 Soft Magnetic Properties of Nanocrystalline Fe-based P/M Cores Mixed...

110

Delocalized Molecular Orbitals of the [6Fe-6S] Cluster of the...  

NLE Websites -- All DOE Office Websites (Extended Search)

Delocalized Molecular Orbitals of the 6Fe-6S Cluster of the FeFe-Hydrogenase Hydrogenases catalyze the stoichiometrically simple (H2 2 H+ + 2 e-), but energetically difficult...

111

FE Clean Coal News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Clean Coal News Clean Coal News FE Clean Coal News RSS February 9, 2009 DOE Award Results in Several Patents, Potential Increased Coal Recovery A $13 million cooperative effort with the Office of Fossil Energy's National Energy Technology Laboratory (NETL) over the past seven years has resulted in the successful demonstration of a novel technology that addresses a problem plaguing coal operators and environmentalists alike: separating fine coal particles from water and their ultimate use as a significant energy resource. February 5, 2009 SECA Fuel Cell Program Moves Two Key Projects Into Next Phase The U.S. Department of Energy has selected two projects for continuation within the Department's Solid State Energy Conversion Alliance (SECA) Program research portfolio. February 3, 2009

112

FE Speeches and Testimony | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Speeches and Testimony Speeches and Testimony FE Speeches and Testimony RSS July 25, 2013 DOE's Coal Research and Development Statement of Christopher Smith, Acting Assistant Secretary for Fossil Energy, before the House Committee on Science, Space and Technology Subcommittee on Energy June 18, 2013 DOE's Program Regulating Liquefied Natural Gas Export Applications Statement of Christopher Smith, Acting Assistant Secretary for Fossil Energy, before the House Committee on Energy and Commerce Subcommittees on Energy and Power April 26, 2013 DOE's Shale Gas and Hydraulic Fracturing Research Statement of Guido DeHoratiis Acting Deputy Assistant Secretary for Oil and Natural Gas before the House Committee on Science, Space, and Technology Subcommittees on Energy and Environment March 19, 2013

113

FE Petroleum Reserves News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Petroleum Reserves News Petroleum Reserves News FE Petroleum Reserves News RSS March 14, 2011 DOE Seeks Commercial Storage for Northeast Home Heating Oil Reserve The Department of Energy, through its agent, DLA Energy, has issued a solicitation for new contracts to store two million barrels of ultra low sulfur distillate for the Northeast Home Heating Oil Reserve in New York Harbor and New England. February 10, 2011 DOE Completes Sale of Northeast Home Heating Oil Stocks The U.S. Department of Energy today has awarded contracts to four companies who successfully bid for the purchase of 1,000,000 barrels of heating oil from the Northeast Home Heating Oil Reserve storage sites in Groton and New Haven, CT. February 3, 2011 DOE Accepts Bids for Northeast Home Heating Oil Stocks The U.S. Department of Energy (DOE) today has awarded contracts to three

114

FE Categorical Exclusions | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusions Categorical Exclusions FE Categorical Exclusions RSS October 13, 2011 CX-007099: Categorical Exclusion Determination Slipstream Pilot-Scale Demonstration of a Novel Amine-Based Post-Combustion Technology for Carbon Dioxide Capture CX(s) Applied: A9, A11 Date: 10/13/2011 Location(s): Germany, Other Location, California, New Jersey, Pennsylvania Office(s): Fossil Energy, National Energy Technology Laboratory October 12, 2011 CX-007108: Categorical Exclusion Determination Energy-Saving Opportunities in Water Treatment and Distribution CX(s) Applied: B3.6 Date: 10/12/2011 Location(s): Grand Forks, Grand Forks County, North Dakota Office(s): Fossil Energy, National Energy Technology Laboratory October 12, 2011 CX-007107: Categorical Exclusion Determination Development of Novel Carbon Sorbents for Carbon Dioxide Capture

115

FE Categorical Exclusions | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Categorical Exclusions Categorical Exclusions FE Categorical Exclusions RSS February 6, 2013 CX-009797: Categorical Exclusion Determination Eni USA Gas Marketing, LLC CX(s) Applied: B5.7 Date: 02/06/2013 Location(s): Louisiana Offices(s): Fossil Energy January 15, 2013 CX-009796: Categorical Exclusion Determination Sempra Liquid Natural Gas Marketing, LLC CX(s) Applied: B5.7 Date: 01/15/2013 Location(s): Louisiana Offices(s): Fossil Energy January 15, 2013 CX-009533: Categorical Exclusion Determination Sempra LNG Marketing, Inc. CX(s) Applied: B5.7 Date: 01/15/2013 Location(s): California, Louisiana Offices(s): Fossil Energy November 29, 2012 CX-009523: Categorical Exclusion Determination Chevron U.S.A. Inc. CX(s) Applied: B5.7 Date: 11/29/2012 Location(s): Louisiana, California Offices(s): Fossil Energy

116

[FeFe]-Hydrogenase-Catalyzed H2 Production in a Photoelectrochemical Biofuel Cell  

SciTech Connect

The Clostridium acetobutylicum [FeFe]-hydrogenase HydA has been investigated as a hydrogen production catalyst in a photoelectrochemical biofuel cell. Hydrogenase was adsorbed to pyrolytic graphite edge and carbon felt electrodes. Cyclic voltammograms of the immobilized hydrogenase films reveal cathodic proton reduction and anodic hydrogen oxidation, with a catalytic bias toward hydrogen evolution. When corrected for the electrochemically active surface area, the cathodic current densities are similar for both carbon electrodes, and 40% of those obtained with a platinum electrode. The high surface area carbon felt/hydrogenase electrode was subsequently used as the cathode in a photoelectrochemical biofuel cell. Under illumination, this device is able to oxidize a biofuel substrate and reduce protons to hydrogen. Similar photocurrents and hydrogen production rates were observed in the photoelectrochemical biofuel cell using either hydrogenase or platinum cathodes.

Hambourger, M.; Gervaldo, M.; Svedruzic, D.; King, P. W.; Gust, D.; Ghirardi, M.; Moore, A. L.; Moore, T. A.

2008-01-01T23:59:59.000Z

117

Microstrucutre of HRE Grain Boundary Diffusion Processed Nd-Fe-B ...  

Science Conference Proceedings (OSTI)

Symposium, Magnetic Materials for Energy Applications IV ... Fe-rich FeSiBPCu Nano-crystalline Soft Magnetic Alloys Contributable To Energy-saving.

118

Synthesis of Sm-Fe-N Hard Magnets by Reactive Mechanical Milling  

Science Conference Proceedings (OSTI)

In this study, we have performed reactive mechanical milling on Sm2Fe17 alloy under hydrogen atmosphere. After reactive mechanical milling, the Sm2Fe17...

119

Magnetic Depth Profiling of Al 2 O 3 /Fe/Si Structure using NG ...  

Science Conference Proceedings (OSTI)

... Transistor (Spin-FET). MRAM. Tunnel Magnetoresistance. Hard Disk. Giant Magnetoresistance. Al 2 O 3 /Fe/Si Structure. Al 2 O 3. Fe. Si. ...

2006-08-09T23:59:59.000Z

120

Strength anomaly in B2 FeAl single crystals  

Science Conference Proceedings (OSTI)

Strength and deformation microstructure of B2 Fe-39 and 48%Al single crystals (composition given in atomic percent), which were fully annealed to remove frozen-in vacancies, have been investigated at temperatures between room temperature and 1073K. The hardness of as-homogenized Fe-48Al is higher than that of as-homogenized Fe-39Al while after additional annealing at 698K the hardness of Fe-48Al becomes lower than that of Fe-39Al. Fe-39Al single crystals slowly cooled after homogenizing at a high temperature were deformed in compression as a function of temperature and crystal orientation. A peak of yield strength appears around 0.5T{sub m} (T{sub m} = melting temperature). The orientation dependence of the critical resolved shear stress does not obey Schmid`s law even at room temperature and is quite different from that of b.c.c. metals and B2 intermetallics at low temperatures. At the peak temperature slip transition from -type to -type is found to occur macroscopically and microscopically, while it is observed in TEM that some of the [111] dislocations decompose into [101] and [010] on the (1096I) plane below the peak temperature. The physical sources for the positive temperature dependence of yield stress of B2 FeAl are discussed based on the obtained results.

Yoshimi, K.; Hanada, S.; Yoo, M.H. [Oak Ridge National Lab., TN (United States); Matsumoto, N. [Tohoku Univ. (Japan). Graduate School

1994-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Accelerated decarburization of Fe-C metal alloys  

DOE Patents (OSTI)

A process is described for improving the rate of metal production and FeO utilization in a steelmaking process or a process combining iron-making and steelmaking in a single reactor that uses or generates Fe-C metal alloy droplets submerged in an FeO-containing slag. The process involves discharging a charge build-up (electron accumulation) in the slag at the slag-metal alloy interface by means of an electron conductor connected between the metal alloy droplets and a gas at a gas-slag interface, said gas having an oxygen partial pressure of at least about 0.01 atmosphere. 2 figs.

Pal, U.B.; Sadoway, D.R.

1997-05-27T23:59:59.000Z

122

Energetic ion bombarded Fe/Al multilayers  

SciTech Connect

The utility of ion-assisted deposition is investigated to explore the possibility of counteracting the deficiency of back-reflected current of Ar neutrals in the case of lighter elements such as Al. A range of energetically ion bombarded Fe/Al multilayers sputtered with applied surface bias of 0, -200, or -400 V were deposited onto Si(111) substrates in an argon atmosphere of 4 mTorr using a computer controlled dc magnetron sputtering system. Grazing incidence reflectivity and rocking curve scans by synchrotron x rays of wavelength of 1.38 A were used to investigate the structures of the interfaces produced. Substantial evidence has been gathered to suggest the gradual suppression of interfacial mixing and reduction in interfacial roughness with increases of applied bias. The densification of the Al microstructure was noticeable and may be a consequence of resputtering attributable to the induced ion bombardment. The average interfacial roughnesses were calculated for the 0, -200, and -400 V samples to be 7{+-}0.5, 6{+-}0.5, and 5{+-}0.5 A respectfully demonstrating a 30% improvement in interface quality. Data from rocking curve scans point to improved long-range correlated roughness in energetically deposited samples. The computational code based on the recursive algorithm developed by Parratt [Phys. Rev. 95, 359 (1954)] was successful in the simulation of the specular reflectivity curves.

Al-Busaidy, M.S.; Crapper, M.D. [College Science, Physics Department, Sultan Qaboos University, P.O. Box 36, Al-Khod 123 (Oman); Department of Physics, Loughborough University, Loughborough (United Kingdom)

2006-05-15T23:59:59.000Z

123

FE DOCKET NO. 11-59-LNG | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FE DOCKET NO. 11-59-LNG FE DOCKET NO. 11-59-LNG FE DOCKET NO. 11-59-LNG ORDER NO. 3324 CONDITIONALLY GRANTING LONG-TERM MULTI-CONTRACT AUTHORIZATION TO EXPORT LIQUEFIED NATURAL GAS BY VESSEL FROM THE LAKE CHARLES TERMINAL TO NON-FREE TRADE AGREEMENT NATIONS Based on a review of the complete record and for the reasons set forth below, DOE/FE has concluded that the opponents of the Lake Charles Exports, LLC (LCE) Application have not demonstrated that the requested authorization will be inconsistent with the public interest. As described below, we find that the exports proposed in this Application are likely to yield net economic benefits to the United States. Accordingly, for this and other reasons set forth below, we are conditionally granting the LCE Application, subject to satisfactory completion of environmental review and

124

Multi-Time Scaling Crystal Plasticity FE Models Dwell Fatigue ...  

Science Conference Proceedings (OSTI)

First Principles Modeling of Shape Memory Alloy Magnetic Refrigeration Materials ... of Lithium Battery Materials LiMPO4 (M = Mn, Fe, Co, and Ni): A Comparative ... Forming-Crush Simulation Optimization Using Internal State Variable Model.

125

Santa Fe Community College offers new welding program  

NLE Websites -- All DOE Office Websites (Extended Search)

The U.S. Department of Labor expects the need for welders, cutters, solderers, and brass workers to increase by 15% by 2020. "We believe that Santa Fe Community College needs...

126

Multiferroic Properties in AlFeO 3 Ceramics  

Science Conference Proceedings (OSTI)

... in an oxygen flow to obtain the single phase AlFeO3 samples. ... Ceramic-polymer 0-3 Composites-optimized Selection of Materials for the High Frequency Applications ... Composites for Biodegradable Separator Membrane.

127

Fast neutron Damage Studies on NdFeB Materials  

E-Print Network (OSTI)

High-Level Dosimeters used in the SLAC Photon andNeutron Fields, SLAC-PUB-8517, 2002. [7] G. Gross, J.SLAC-PUB-11219 May2005 Fast Neutron Damage Studies on NdFeB

2005-01-01T23:59:59.000Z

128

High Bs-FeSiBPCu Nanocrystalline Soft Magnetic Alloys ...  

Science Conference Proceedings (OSTI)

The new FeSiBPCu nanocrystalline materials with lower materials cost due to absence of rare-metals are expected to not only contribute to energy-saving and ...

129

Grain Boundary Micromagnetism Characterization of Nd-Fe-B ...  

Science Conference Proceedings (OSTI)

Symposium, Magnetic Materials for Energy Applications -III. Presentation Title ... Advances in Rare-earth Free Permanent Magnets Anisotropic ... Performance and Endurance of Nd-Fe-B Sintered Magnets in E-Motor Application Conditions.

130

Feasibility of band gap engineering of pyrite FeS?  

E-Print Network (OSTI)

We use first-principles computations to investigate whether the band gap of pyrite FeS? can be increased by alloying in order to make it a more effective photovoltaic material. In addition to the isostructural compounds ...

Sun, Ruoshi

131

Hydrogen-Vacancy Interactions in Fe-C Alloys  

E-Print Network (OSTI)

Energetics and concentrations of hydrogen-containing point defect clusters (PDCs) in Fe-C alloys are calculated and cast into a PDC dominance diagram. Because of the strong binding effects of iron vacancies on the stability ...

Yip, Sidney

132

Electrochemical Model of the Fe/V Redox Flow Battery  

Science Conference Proceedings (OSTI)

This paper presents a mathematical model for the new Fe/V redox flow battery chemistry. The model is designed to be useful for stack development and cost analysis purposes.

Stephenson, David E.; Kim, Soowhan; Chen, Feng; Thomsen, Edwin C.; Viswanathan, Vilayanur V.; Wang, Wei; Sprenkle, Vincent L.

2012-11-05T23:59:59.000Z

133

Electrochemically Preparing of Ni-Fe Alloys in Molten Sodium ...  

Science Conference Proceedings (OSTI)

A Pilot-plant Scale Test of Coal-based Rotary Kiln Direct Reduction of Laterite Ore for Fe-Ni Production A Pilot-plant Scale Test on DRI Preparation from...

134

FE DOCKET NO. 10-161-LNG | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FE DOCKET NO. 10-161-LNG FE DOCKET NO. 10-161-LNG FE DOCKET NO. 10-161-LNG ORDER CONDITIONALLY GRANTING LONG-TERM MULTI-CONTRACT AUTHORIZATION TO EXPORT LIQUEFIED NATURAL GAS BY VESSEL FROM THE FREEPORT LNG TERMINAL ON QUINTANA ISLAND, TEXAS TO NON-FREE TRADE AGREEMENT NATIONS Based on a review of the complete record and for the reasons set forth below, DOE/FE has concluded that the opponents of the FLEX Application have not demonstrated that the requested authorization would be inconsistent with the public interest. As further described below, we find that the exports proposed in this Application are likely to yield net economic benefits to the United States. We further find that granting the requested authorization is unlikely to affect adversely the availability of natural gas supplies to domestic consumers or result in natural gas price increases

135

Iron Corrosion Observations: Pu(VI)-Fe Reduction Studies  

Science Conference Proceedings (OSTI)

Iron and Pu Reduction: (1) Very different appearances in iron reaction products were noted depending on pH, brine and initial iron phase; (2) Plutonium was associated with the Fe phases; (3) Green rust was often noted at the higher pH; (4) XANES established the green rust to be an Fe2/3 phase with a bromide center; and (5) This green rust phase was linked to Pu as Pu(IV).

Reed, Donald T. [Los Alamos National Laboratory; Swanson, Juliet S. [Los Alamos National Laboratory; Richmann, Michael K. [Los Alamos National Laboratory; Lucchini, Jean-Francois [Los Alamos National Laboratory; Borkowski, Marian [Los Alamos National Laboratory

2012-09-11T23:59:59.000Z

136

Demonstration of Security Benefits of Renewable Generation at FE Warren Air Force Base  

DOE Green Energy (OSTI)

Report detailing field demonstration of security benefits of renewable generation at FE Warren Air Force Base.

Warwick, William M.; Myers, Kurt; Seifert, Gary

2010-12-31T23:59:59.000Z

137

MAS NMR Study of the Metastable Solid Solution Found in the LiFePO4...  

NLE Websites -- All DOE Office Websites (Extended Search)

MAS NMR Study of the Metastable Solid Solution Found in the LiFePO4FePO4 Sustem Title MAS NMR Study of the Metastable Solid Solution Found in the LiFePO4FePO4 Sustem Publication...

138

Infrared [Fe II] and Dust Emissions from Supernova Remnants  

E-Print Network (OSTI)

Supernova remnants (SNRs) are strong thermal emitters of infrared radiation. The most prominent lines in the near-infrared spectra of SNRs are [Fe II] lines. The [Fe II] lines are from shocked dense atomic gases, so they trace SNRs in dense environments. After briefly reviewing the physics of the [Fe II] emission in SNR shocks, I describe the observational results which show that there are two groups of SNRs bright in [Fe II] emission: middle-aged SNRs interacting with molecular clouds and young core-collapse SNRs in dense circumstellar medium. The SNRs belonging to the former group are also bright in near-infrared H$_2$ emission, indicating that both atomic and molecular shocks are pervasive in these SNRs. The SNRs belonging to the latter group have relatively small radii in general, implying that most of them are likely the remnants of SN IIL/b or SN IIn that had strong mass loss before the explosion. I also comment on the "[Fe II]-H$_2$ reversal" in SNRs and on using the [Fe II]-line luminosity as an indic...

Koo, Bon-Chul

2013-01-01T23:59:59.000Z

139

Oxide Melt Solution Calorimetry of Fe2+ -bearing Oxides and Application to the Magnetite - Maghemite (Fe3O4-Fe8/3O4) system  

Science Conference Proceedings (OSTI)

A consistent methodology for obtaining enthalpy of formation of Fe{sup 2+}-containing binary and multicomponent oxides using high temperature oxide melt solution calorimetry has been developed. The enthalpies of wuestite (FeO) and magnetite (Fe{sub 3}O{sub 4}) oxidation to hematite (Fe{sub 2}O{sub 3}) were measured using oxidative drop solution calorimetry in which the final product is dissolved ferric oxide. Two methods were applied: drop solution calorimetry at 1073 K in lead borate solvent and at 973 K in sodium molybdate, each under both oxygen flowing over and bubbling through the solvent, giving consistent results in agreement with literature values. The enthalpies of formation of all three iron oxides from the elements were obtained using a thermodynamic cycle involving the directly measured oxidative dissolution enthalpy of iron metal in sodium molybdate at 973 K and gave excellent consistency with literature data. The methodology was then applied to the magnetite - maghemite system. The enthalpy of mixing of the Fe{sub 3}O{sub 4}-Fe{sub 8/3}O{sub 4} spinel solid solution is exothermic and, 2 represented by a subregular (Margules) formalism, {Delta}H{sub mix} = x(1-x)(-63.36 {+-} 8.60(1-x) + 17.65 {+-} 6.40x) kJ/mol, where x is the mole fraction of magnetite. The entropies of mixing of the solid solution were calculated for different assumptions about the distribution of cations, charges, and vacancies in these defect spinels. The different models lead to only small differences in the entropy of mixing. Calculated free energies of mixing show no evidence for a solvus in the magnetite - maghemite system.

Lilova, Kristina I.; Xu, Fen; Rosso, Kevin M.; Pearce, Carolyn I.; Kamali, Saeed; Navrotsky, Alexandra

2012-01-01T23:59:59.000Z

140

Role of structural Fe in nontronite NAu-1 and dissolved Fe(II) in redox transformations of arsenic and antimony  

SciTech Connect

Oxidation state is a major factor affecting the mobility of arsenic (As) and antimony (Sb) in soil and aquatic systems. Metal (hydr)oxides and clay minerals are effective sorbents, and may also promote redox reactions on their surfaces via direct or indirect facilitation of electron transfer. Iron substituted for Al in the octahedral sites of aluminosilicate clay minerals has the potential to be in variable oxidation states and is a key constituent of electron transfer reactions in clay minerals. This experimental work was conducted to determine whether structural Fe in clays can affect the oxidation state of As and Sb adsorbed at the clay surface. Another goal of our study was to compare the reactivity of clay structural Fe(II) with systems containing Fe(II) present in dissolved/adsorbed forms. The experimental systems included batch reactors with various concentrations of As(III), Sb(III), As(V), or Sb(V) equilibrated with oxidized (NAu-1) or partially reduced (NAu-1-Red) nontronite, hydrous aluminum oxide (HAO) and kaolinite (KGa-1b) suspensions under oxic and anoxic conditions. The reaction times ranged from 0.5 to 720 h, and pH was constrained at 5.5 (for As) and at 5.5 or 8.0 (for Sb). The oxidation state of As and Sb in the liquid phase was determined by liquid chromatography in line with an inductively coupled plasma mass spectrometer, and in the solid phase by X-ray absorption spectroscopy. Our findings show that structural Fe(II) in NAu-1-Red was not able to reduce As(V)/Sb(V) under the conditions examined, but reduction was seen when aqueous Fe(II) was present in the systems with kaolinite (KGa-1b) and nontronite (NAu-1). The ability of the structural Fe in nontronite clay NAu-1 to promote oxidation of As(III)/Sb(III) was greatly affected by its oxidation state: if all structural Fe was in the oxidized Fe(III) form, no oxidation was observed; however, when the clay was partially reduced ({approx}20% of structural Fe was reduced to Fe(II)), NAu-1-Red promoted the most extensive oxidation under both oxic and anoxic conditions. Electron balance considerations suggest that structural Fe(III) in the NAu-1-Red was the sole oxidant in the anoxic setup, while dissolved O{sub 2} also contributes in oxic conditions. Long-term batch experiments revealed the complex dynamics of As aqueous speciation in anoxic and oxic systems when reduced arsenic was initially added: rapid disappearance of As(III) was observed due to oxidation to As(V) followed by a slow increase of aqueous As(III). This behavior is explained by two reactions: fast initial oxidation of As(III) by structural Fe(III) (anoxic) or Fe(III) and dissolved O2 (oxic) followed by the slow reduction of As(V) by dissolved Fe(II). The resulting re-mobilization of As due to As(V) reduction by aqueous Fe(II) occurs on time scales on the order of days. These reactions are likely significant in a natural soil or aquifer environment with seasonal cycling or slightly reducing conditions with an abundance of clay minerals and dissolved Fe(II).

Ilgen, Anastasia G.; Foster, Andrea L.; Trainor, Thomas P. (Alaska Fairbanks); (USGS)

2012-11-01T23:59:59.000Z

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141

First principles calculation of finite temperature magnetism in Fe and Fe3C  

SciTech Connect

Density functional calculations have proven to be a useful tool in the study of ground state properties of many materials. The investigation of finite temperature magnetism, on the other hand, has to rely usually on the usage of empirical models that allow the large number of evaluations of the systems Hamiltonian that are required to obtain the phase space sampling needed to obtain the free energy, specific heat, magnetization, susceptibility, and other quantities as function of temperature. We have demonstrated a solution to this problem that harnesses the computational power of today s large massively parallel computers by combining a classical Wang Landau Monte-Carlo calculation [F. Wang and D. P. Landau, Phys. Rev. Lett. 86, 2050 (2001)] with our first principles multiple scattering electronic structure code [Y. Wang et al., Phys. Rev. Lett. 75, 2867 (1995)] that allows the energy calculation of constrained magnetic states [M. Eisenbach et al., Proceedings of the Conference on High Performance Computing, Networking, Storage and Analysis (ACM, New York, 2009)]. We present our calculations of finite temperature properties of Fe and Fe3C using this approach and we find the Curie temperatures to be 980 and 425K, respectively. VC2011 American Institute of Physics. [doi:10.1063/1.3562218

Eisenbach, Markus [ORNL; Nicholson, Don M [ORNL; Rusanu, Aurelian [ORNL; Brown, Greg [ORNL

2011-01-01T23:59:59.000Z

142

Heterogeneous Reduction of PuO2 with Fe(II): Importance of the Fe(III) Reaction Product  

Science Conference Proceedings (OSTI)

Abstract Heterogeneous reduction of actinides in higher and more soluble oxidation states to lower more insoluble oxidation states by reductants such as Fe(II) has been the subject of intensive study for more than two decades. However, Fe(II)-induced reduction of sparingly soluble Pu(IV) to the more soluble lower oxidation state Pu(III) has been much less studied even though such reactions can potentially increase the mobility of Pu in the subsurface. Thermodynamic calculations are presented that show how differences in the free energy of various possible solid-phase Fe(III) reaction products can greatly influence aqueous Pu(III) concentrations resulting from reduction of PuO2(am) by Fe(II). We present the first experimental evidence that reduction of PuO2(am) to Pu(III) by Fe(II) was enhanced when the Fe(III) mineral goethite was spiked into the reaction. The effect of goethite on reduction of Pu(IV) was demonstrated by measuring the time-dependence of total aqueous Pu concentration, its oxidation state, and system pe/pH. We also re-evaluated established protocols for determining Pu(III) [(Pu(III) + Pu(IV)) - Pu(IV)] by using thenoyltrifluoroacetone (TTA) in toluene extractions; the study showed that it is important to eliminate dissolved oxygen from the TTA solutions for accurate determinations. More broadly, this study highlights the importance of the Fe(III) reaction product in actinide reduction rate and extent by Fe(II).

Felmy, Andrew R.; Moore, Dean A.; Rosso, Kevin M.; Qafoku, Odeta; Rai, Dhanpat; Buck, Edgar C.; Ilton, Eugene S.

2011-05-01T23:59:59.000Z

143

Composition-Mediated Order-Disorder Transformation in FePt Nanoparticles  

SciTech Connect

Thumbnail image of graphical abstract Heat-treated alloy FePt nanoparticles transform into L10 FePt and mixed L10/L12 FePt3 intermetallic phases. Enrichment in Pt in some nanoparticles, rather than intrinsic thermodynamic effects, drives phase segregation. FePt nanoparticles of uniform, equimolar composition are expected to transform into phase-pure, highly ordered L10 FePt nanoparticles.

Johnston-Peck, Aaron C [ORNL; Cullen, David A [ORNL; Tracy, Joseph B [North Carolina State University

2013-01-01T23:59:59.000Z

144

Mtr Extracellular Electron Transfer Pathways in Fe(III)-reducing or Fe(II)-oxidizing Bacteria: A Genomic Perspective  

Science Conference Proceedings (OSTI)

Originally discovered in the dissimilatory metal-reducing bacterium Shewanella oneidensis MR-1 (MR-1), the Mtr (i.e., metal-reducing) pathway exists in all characterized strains of metal-reducing Shewanella. The protein components identified to date for the Mtr pathway of MR-1 include four multi-heme c-type cytochromes (c-Cyts), CymA, MtrA, MtrC and OmcA, and a porin-like, outer membrane protein MtrB. They are strategically positioned along the width of the MR-1 cell envelope to mediate electron transfer from the quinone/quinol pool in the inner-membrane to the Fe(III)-containing minerals external to the bacterial cells. A survey of microbial genomes revealed homologues of the Mtr pathway in other dissimilatory Fe(III)-reducing bacteria, including Aeromonas hydrophila, Ferrimonas balearica and Rhodoferax ferrireducens, and in the Fe(II)-oxidizing bacteria Dechloromonas aromatica RCB, Gallionella capsiferriformans ES-2 and Sideroxydans lithotrophicus ES-1. The widespread distribution of Mtr pathways in Fe(III)-reducing or Fe(II)-oxidizing bacteria emphasizes the importance of this type of extracellular electron transfer pathway in microbial redox transformation of Fe. Their distribution in these two different functional groups of bacteria also emphasizes the bi-directional nature of electron transfer reactions carried out by the Mtr pathways. The characteristics of the Mtr pathways may be shared by other pathways used by microorganisms for exchanging electrons with their extracellular environments.

Shi, Liang; Rosso, Kevin M.; Zachara, John M.; Fredrickson, Jim K.

2012-12-01T23:59:59.000Z

145

Campbell penetration depth in Fe-based superconductors  

Science Conference Proceedings (OSTI)

A 'true' critical current density, j{sub c}, as opposite to commonly measured relaxed persistent (Bean) current, j{sub B}, was extracted from the Campbell penetration depth, {lambda}{sub c}(T,H) measured in single crystals of LiFeAs, and optimally electron-doped Ba(Fe{sub 0.954}Ni{sub 0.046}){sub 2}As{sub 2} (FeNi122). In LiFeAs, the effective pinning potential is nonparabolic, which follows from the magnetic field - dependent Labusch parameter {alpha}. At the equilibrium (upon field - cooling), {alpha}(H) is non-monotonic, but it is monotonic at a finite gradient of the vortex density. This behavior leads to a faster magnetic relaxation at the lower fields and provides a natural dynamic explanation for the fishtail (second peak) effect. We also find the evidence for strong pinning at the lower fields.The inferred field dependence of the pinning potential is consistent with the evolution from strong pinning, through collective pinning, and eventually to a disordered vortex lattice. The value of j{sub c}(2 K) {approx_equal} 1.22 x 10{sup 6} A/cm{sup 2} provide an upper estimate of the current carrying capability of LiFeAs. Overall, vortex behavior of almost isotropic, fully-gapped LiFeAs is very similar to highly anisotropic d-wave cuprate superconductors, the similarity that requires further studies in order to understand unconventional superconductivity in cuprates and pnictides. In addition to LiFeAs, we also report the magnetic penetration depth in BaFe{sub 2}As{sub 2} based superconductors including irradiation of FeNi122. In unirradiated FeNi122, the maximum critical current value is, j{sub c}(2K) {approx_equal} 3.3 x 10{sup 6} A/cm{sup 2}. The magnetic-dependent feature was observed near the transition temperature in FeTe{sub 0.53}Se{sub 0.47} and irradiated FeNi122. Because of this feature, further studies are required in order to properly calibrate the Campbell penetration depth. Finally, we detected the crossing between the magnetic penetration depth and London penetration depth in optimally hold-doped Ba{sub 0.6}K{sub 0.4}Fe{sub 2}As{sub 2} (BaK122) and isovalent doped BaFe{sub 2}(As{sub 0.7}P{sub 0.3}){sub 2} (BaP122). These phenomena probably coincide with anomalous Meissner effect reported in pnicitde superconductors [Prozorov et al. (2010b)] however more studies are needed in order to clarify this.

Prommapan, Plegchart

2011-08-15T23:59:59.000Z

146

Dual and Triple Ion-Beam Irradiations of Fe, Fe(Cr) and Fe(Cr)-ODS Final Report: IAEA SMoRE CRP  

DOE Green Energy (OSTI)

Structures of nanoparticles in Fe-16Cr-4.5Al-0.3Ti-2W-0.37Y2O3 (K3) and Fe-20Cr-4.5Al-0.34Ti-0.5Y2O3 (MA956) oxide dispersion strengthened (ODS) ferritic steels produced by mechanical alloying (MA) and followed by hot extrusion have been studied using high-resolution transmission electron microscopy (HRTEM) techniques to gain insight about the formation mechanism of nanoparticles in MA/ODS steels. The observations of Y-Al-O complex-oxide nanoparticles in both ODS steels imply that decomposition of Y2O3 in association with internal oxidation of Al occurred during mechanical alloying. While the majority of oxide nanoparticles formed in both steels is Y4Al2O9, a few oxide particles of YAlO3 are also occasionally observed. These results reveal that Ti (0.3 wt %) plays an insignificant role in forming oxide nanoparticles in the presence of Al (4.5 wt %). HRTEM observations of crystalline nanoparticles larger than {approx}2 nm and amorphous or disordered cluster domains smaller than {approx}2 nm provide an insight into the formation mechanism of oxide nanoparticle in MA/ODS steels, which we believe from our observations involves a solid-state amorphous precursor followed by recrystallization. Dual ion-beam irradiations using He{sup +} + Fe{sup +8} ions were employed to gain more detailed insight about the role of nanoparticles in suppressing radiation-induced swelling. This is elaborated through TEM examinations of cavity distributions in ion-irradiated Fe-14Cr and K3-ODS ferritic steels. HRTEM observations of helium-filled cavities (helium bubbles) preferably trapped at nanoscale oxide particles and clusters in ion-irradiated K3-ODS are presented. Finally, we describe the results from triple ion-beam irradiations using H{sup +} + He{sup +} + Fe{sup +8} ions to emulate fusion first wall radiation effects. Preliminary work is reported that confirms the existence of significant hydrogen synergistic effects described earlier by Tanaka et al., for Fe(Cr) and by Wakai et al., for F82H reduced activation ferritic martensitic (RAF/M) steel. These previous results combined with our data suggest a complex new 'catalytic' mechanism whereby H interacts with the steady state population of defects and the embryonic cavities so as to accelerated cavity (void) growth in both Fe(Cr) and under special conditions in ODS steels.

Fluss, M J; Hsiung, L L; Marian, J

2011-11-20T23:59:59.000Z

147

Microporous Separators for Fe/V Redox Flow Batteries  

Science Conference Proceedings (OSTI)

The Fe/V redox flow battery has demonstrated promising performance that is advantageous over other redox flow battery systems. The less oxidative nature of the Fe(III) species enables use of hydrocarbon - based ion exchange membranes or separators. Daramic(reg. sign) microporous polyethylene separators were tested on Fe/V flow cells using the sulphuric/chloric mixed acid - supporting electrolytes. Among them, Daramic(reg. sign) C exhibited good flow cell cycling performance with satisfactory repeatability over a broad temperature range of 5 - 50 degrees C. Energy efficiency (EE) of C remains above 67% at current densities of 50 - 80 cm{sup -2} in the temperature range from room temperature to 50 degrees C. The capacity decay problem could be circumvented through hydraulic pressure balancing by applying different pump rates to the positive and negative electrolytes. Stable capacity and energy were obtained over 40 cycles at room temperature and 40 degrees C. These results manifest that the extremely low-cost separators ($10/cm2) are applicable in the Fe/V flow battery system at an acceptable sacrifice of energy efficiency. This stands for a remarkable breakthrough in significant reduction of the capital cost of the Fe/V flow battery system, and is promising to promote its market penetration in grid stabilization and renewable integration.

Wei, Xiaoliang; Li, Liyu; Luo, Qingtao; Nie, Zimin; Wang, Wei; Li, Bin; Xia, Guanguang; Miller, Eric; Chambers, Jeff; Yang, Zhenguo

2012-06-28T23:59:59.000Z

148

Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Santa Fe Metro Fleet Santa Fe Metro Fleet Runs on Natural Gas to someone by E-mail Share Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas on Facebook Tweet about Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas on Twitter Bookmark Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas on Google Bookmark Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas on Delicious Rank Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas on Digg Find More places to share Alternative Fuels Data Center: Santa Fe Metro Fleet Runs on Natural Gas on AddThis.com... June 8, 2010 Santa Fe Metro Fleet Runs on Natural Gas " CNG buses are reliable, have cleaner-burning engines, offer increased oil life, and have lower fuel costs than diesel.

149

Fe-doped InN layers grown by molecular beam epitaxy  

Science Conference Proceedings (OSTI)

Iron(Fe)-doped InN (InN:Fe) layers have been grown by molecular beam epitaxy. It is found that Fe-doping leads to drastic increase of residual electron concentration, which is different from the semi-insulating property of Fe-doped GaN. However, this heavy n-type doping cannot be fully explained by doped Fe-concentration ([Fe]). Further analysis shows that more unintentionally doped impurities such as hydrogen and oxygen are incorporated with increasing [Fe] and the surface is degraded with high density pits, which probably are the main reasons for electron generation and mobility reduction. Photoluminescence of InN is gradually quenched by Fe-doping. This work shows that Fe-doping is one of good choices to control electron density in InN.

Wang Xinqiang; Liu Shitao; Ma Dingyu; Zheng Xiantong; Chen Guang; Xu Fujun; Tang Ning; Shen Bo [State Key Laboratory of Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871 (China); Zhang Peng; Cao Xingzhong; Wang Baoyi [State Key Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); Huang Sen; Chen, Kevin J. [Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology (Hong Kong); Zhou Shengqiang [Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01314 Dresden (Germany); Yoshikawa, Akihiko [Center for SMART Green Innovation Research, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522 (Japan)

2012-10-22T23:59:59.000Z

150

Los Alamos National Security invests in Santa Fe Community College  

NLE Websites -- All DOE Office Websites (Extended Search)

Santa Fe Community College Foundation Santa Fe Community College Foundation Los Alamos National Security invests in Santa Fe Community College Foundation The new center is an educational and training facility for alternative energy and green jobs. July 16, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Steve Sandoval

151

AgFe Management Ltd | Open Energy Information  

Open Energy Info (EERE)

AgFe Management Ltd AgFe Management Ltd Jump to: navigation, search Name AgFe Management Ltd Place London, England, United Kingdom Zip W11 1QF Product London-based, Financial Asset Management and Advisory firm. Coordinates 51.506325°, -0.127144° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":51.506325,"lon":-0.127144,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

152

Visiting With Santa Fe Small Business Owners | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Visiting With Santa Fe Small Business Owners Visiting With Santa Fe Small Business Owners Visiting With Santa Fe Small Business Owners May 10, 2012 - 9:02am Addthis Dot Harris Dot Harris The Honorable Dot Harris, Director, Office of Economic Impact and Diversity You've got to do your homework in order to contract with the federal government. Whether you are a large or small business owner, learning the ins and outs of government contracting takes dedication, perseverance, and taking advantage of opportunities to meet face-to-face with procurement experts and other businesses. That's where our Small Business Roundtables, Business Opportunity Sessions, conference booths, and Regional Small Business Summits come in. We want to meet directly with small business owners, managers, and staffers, to hear what you need to learn from us to make the contracting

153

FE Implementation of the Recovery Act | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FE Implementation of the Recovery Act FE Implementation of the Recovery Act FE Implementation of the Recovery Act The American Recovery and Reinvestment Act of 2009 (Recovery Act) was signed into law by President Obama on February 17th, 2009. It is an unprecedented effort to jumpstart our economy, create or save millions of jobs, and put a down payment on addressing long-neglected challenges so our country can thrive in the 21st century. As the centerpiece of the President's commitment to transparency and accountability, this site will feature projections for how, when, and where the Office of Fossil Energy funds will be spent. The Office of Fossil Energy has received $3.4 billion from the Recovery Act. Initiatives will focus on research, development and deployment of technologies to use coal more cleanly and efficiently. Investments will go

154

Santa Fe, New Mexico: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Fe, New Mexico: Energy Resources Fe, New Mexico: Energy Resources (Redirected from Santa Fe, NM) Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.6869752°, -105.937799° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.6869752,"lon":-105.937799,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

155

U.S. DOE FE Fuel Cell Program  

NLE Websites -- All DOE Office Websites (Extended Search)

FE Fuel Cell Program FE Fuel Cell Program DOE Hydrogen and Fuel Cells Coordination Meeting June 2, 2003 Sam Biondo, 35910 FY 2001 Actual FY 2002 Actual FY 2003 Enacted* FY 2004 Budget Description Fossil Energy (FE) Fule Cells Distributed Generation System s Innovative Systems Concepts 3,789 26,484 33,779 23,500 Continue to develop and test six SECA industry team concept designs for prototype low -to-high temperature, $400/kW systems and continue the supporting SECA Core Technology program. Fuel Cell Systems Development 30,172 13,147 9,935 6,000 Conduct re-directed program on advanced systems development and testing. These advanced systems include zero emission and hybrid systems. Also includes various stack designs under SECA and adaptation of SECA for syngas and diesel. Vision 21 Hybrid

156

Growth sequence and interface formation in the Fe/MgO/Fe(001) tunnel junction analyzed by surface x-ray diffraction  

Science Conference Proceedings (OSTI)

We present a surface x-ray diffraction study of the interface geometric structure in the Fe/MgO/Fe(001) magnetic tunnel junction (MTJ). While the lower MgO/Fe(001) interface is characterized by a substoichiometric FeO{sub x} (x=0.6{+-}0.1) layer in agreement with previous studies, growth of Fe on the MgO spacer and the upper Fe/MgO interface structure strongly depends on the preparation method. If 0.4 monolayers of Fe are initially deposited in ambient oxygen atmosphere (p=10{sup -7} mbar) followed by Fe deposition under ultrahigh-vacuum (UHV) conditions, structural coherence across the trilayer junction is observed. In this case, substoichiometric FeO{sub x} layers are present at both Fe/MgO interfaces corresponding to a symmetric MTJ structure. In contrast, lattice registry is not preserved if Fe deposition is carried out solely under UHV conditions. Our results might have important implications for the preparation of magnetic tunnel junctions optimized to achieve giant tunneling-magnetoresistance amplitudes.

Tusche, C.; Meyerheim, H. L.; Kirschner, J. [Max-Planck-Institut fuer Mikrostrukturphysik, Weinberg 2, D-06120 Halle (Germany); Jedrecy, N. [Institut des NanoSciences de Paris, Universites Paris 6 et 7 et CNRS-UMR 7588, 4 place Jussieu, F-75252 Paris Cedex 05 (France); Renaud, G. [CEA-Grenoble, 17 rue des Martyrs, F-38054 Grenoble (France)

2006-11-15T23:59:59.000Z

157

Fe/Al2O3 C2H4 Hata mm/10 min  

E-Print Network (OSTI)

Fe/Al2O3 C2H4 () () () () () () () * () 1. (SWNT) SWNT (CVD) (CNT)[1] Hata mm/10 min SWNT (Super Growth)[2]Al2O3 Fe C2H4 SWNT Fe/Al2O3 C2H4 CVD SWNT CNT CNT 2 SiO2 Al2O3 20 (RBM) 1350 cm-1 (D-Band)Fe G/D RBM Fe SWNT Al 15 nm Fe 0.6 nm CVD TEM Fig. 3 3 nm SWNT

Maruyama, Shigeo

158

Studies on transition metals and alloy Fischer-Tropsch catalysts, their electronic and bulk properties. (I: Fe/MnO; II: Fe/TiO/sub 2/; III: Fe/Mord. ). Final report, July 1, 1982-September 30, 1983  

DOE Green Energy (OSTI)

The objectives were: (1) to characterize samples D1, 10% FeO/90% MnO, and D2, 48% FeO/52% MnO, under varying conditions of reduction (at 250/sup 0/C or 350/sup 0/C in H/sub 2/) and of syngas reaction 1:1 of CO:H/sub 2/ at 290/sup 0/C) and in some cases use CO only for reduction and to identify species by Moessbauer Spectroscopy and Magnetization (sigma/sub s) measurement; (2) similarly, to see if there is any metal (oxide)/support (Mordenite) interaction by the same techniques. The characterization was carried out with above techniques and the kinetic results for syngas were obtained on the above systems mostly at PETC. During reduction of Fe-oxide/Mn-oxide an intermediate Mn-ferrite phase was detected. After reduction, species such as Fe/sup 0/+Fe/sup 3 +/+Fe/sup 2 +/ in varying total proportions (45% at 290/sup 0/C and Fe/sup 0/+Fe/sup 2 +/ 75% were found at 350/sup 0/C). Syngas conversion showed Fe-carbides (Fe/sub 2/C/sub 2/+Fe/sub 3/C) depending on the reaction conditions, and the composition of D/sub 1/ and D/sub 2/. With the fresh ..gamma..-Fe/sub 2/O/sub 3/ (identified by Moessbauer) on Mordenites with varying ratios of SiO/sub 2//Al/sub 2/O/sub 3/, a decrease in (sigma/sub s/) was found with lowering of the ratios from 60 to 17. At 17% ratio (sigma/sub s/) was smallest and the change in the isomer shift was maximum, which established an interaction with the Broensted cities. 24 figures.

Mulay, L.N.

1983-11-01T23:59:59.000Z

159

The Development of low cost LiFePO4-based high power lithium...  

NLE Websites -- All DOE Office Websites (Extended Search)

Development of low cost LiFePO4-based high power lithium-ion batteries Title The Development of low cost LiFePO4-based high power lithium-ion batteries Publication Type Journal...

160

Comparative Modeling of Li-Ion Cell and LiFePO4 - Programmaster ...  

Science Conference Proceedings (OSTI)

Presentation Title, Comparative Modeling of Li-Ion Cell and LiFePO4 Cell for Automotive ... The cathode active material of a LiFePO4 cell is assumed to undergo...

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

EA-1188: Chevron U.S.A., Inc. and Santa Fe Energy Resources,...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

88: Chevron U.S.A., Inc. and Santa Fe Energy Resources, Inc. Midway Valley 3D Seismic Project, Kern County, California EA-1188: Chevron U.S.A., Inc. and Santa Fe Energy Resources,...

162

Electron Microscopy Study of the LiFEPO4 to FePo4 Phase Transition  

NLE Websites -- All DOE Office Websites (Extended Search)

Electron Microscopy Study of the LiFEPO4 to FePo4 Phase Transition Title Electron Microscopy Study of the LiFEPO4 to FePo4 Phase Transition Publication Type Journal Article Year of...

163

CoNiFe Alloy Powder Synthesis by High Energy Milling  

Science Conference Proceedings (OSTI)

CoNiFe alloy powder was synthesized by high energy milling of mixtures of Co, Ni and Fe powder as a bulk processing method for producing powder. A milling...

164

Dilute magnetic semiconductor Cu2FeSnS4 nanocrystals with a novel zincblende structure  

Science Conference Proceedings (OSTI)

Diluted magnetic semiconductor Cu2FeSnS4 nanocrystals with a novel zincblende structure have been successfully synthesized by a hot-injection approach. Cu+, Fe2+, and Sn4+ ions occupy the same position in the ...

Xiaolu Liang; Xianhua Wei; Daocheng Pan

2012-01-01T23:59:59.000Z

165

Influence of lithium on nanosized films of Fe2O3  

Science Conference Proceedings (OSTI)

We have investigated nanosized thin films of ?-Fe2O3 (hematite) and ?-Fe2O3 with addition of Li, by the impedance spectroscopy (IS), the Raman spectroscopy, scanning electron microscopy (SEM), and ...

A. Turkovi?; M. Ivanda; M. Bitenc; Z. Crnjak Orel

2011-01-01T23:59:59.000Z

166

Microsoft PowerPoint - DE-FE0002402_UTEP_Choudhuri.pptx  

NLE Websites -- All DOE Office Websites (Extended Search)

Project DE-FE0002402 Project DE FE0002402 Title: Investigation on Flame Characteristics and Burner Operability Issues of Oxy-Fuel Combustion p y y University of Texas El Paso y...

167

N2s2 chelating agents as cys-x-cys biomimics for fe(no) and fe(no)2 complexes  

E-Print Network (OSTI)

Nitric oxide plays an important role in many biological functions. A metallo derivative in biological systems is a protein-bound dinitrosyl iron complex (DNIC), which results from iron-sulfur cluster degradation in the presence of excess NO. Through model complexes I have examined the fundamental properties of a dithiolato-Fe(NO)2 complex, bismercaptoethandiazacyclooctane iron dinitrosyl or (H+bme-daco)Fe(NO)2 as a biomimic of dicysteinate coordination of [Fe(NO)2]. This complex was prepared and fully characterized in my studies. The DNIC moiety is in its oxidized state, {Fe(NO)2}9. Through reaction studies, monitored by IR spectroscopy (H+N2S2)Fe(NO)2 (N2S2 = bme-dach. Bme-pda) has been shown to transfer NO to FeIII in (TPP)FeCl (TPP = meso-tetraphenylporphyrin) as NO-. The remaining mononitrosyl converts into complex (N2S2)Fe(NO). The (N2S2)Fe(NO) complexes (N2S2 = bme-daco, bme*-daco, bme-dach) were prepared by direct reaction of dimeric [(N2S2)Fe]2 and NO gas. The analogous (N2S2)Co(NO) complex (N2S2 = bme-dach) has also been prepared. The series of square pyramidal (N2S2)M(NO) have been studied by cyclic voltammetry and ?(NO) IR spectroscopy.

Chiang, Chao-Yi

2003-05-01T23:59:59.000Z

168

Equation of state and phase diagram of FeO  

Science Conference Proceedings (OSTI)

Wuestite, Fe{sub 1-x}O, is an important component in the mineralogy of Earth's lower mantle and may also be a component in the core. Therefore the high pressure, high temperature behavior of FeO, including its phase diagram and equation of state, is essential knowledge for understanding the properties and evolution of Earth's deep interior. We performed X-ray diffraction measurements using a laser-heated diamond anvil cell to achieve simultaneous high pressures and temperatures. Wuestite was mixed with iron metal, which served as our pressure standard, under the assumption that negligible oxygen dissolved into the iron. Our data show a positive slope for the subsolidus phase boundary between the B1 and B8 structures, indicating that the B1 phase is stable at the P-T conditions of the lower mantle and core. We have determined the thermal equation of state of B1 FeO to 156 GPa and 3100 K, finding an isothermal bulk modulus K{sub 0} = 149.4 {+-} 1.0 GPa and its pressure derivative K'{sub 0} = 3.60 {+-} 0.4. This implies that 7.7 {+-} 1.1 wt.% oxygen is required in the outer core to match the seismologically-determined density, under the simplifying assumption of a purely Fe-O outer core.

Fischer, Rebecca A.; Campbell, Andrew J.; Shofner, Gregory A.; Lord, Oliver T.; Dera, Przemyslaw; Prakapenka, Vitali B. (Bristol); (Maryland); (UC)

2012-04-11T23:59:59.000Z

169

Dielectronic recombination of Fe^{13+}: benchmarking the M-shell  

E-Print Network (OSTI)

We have carried-out a series of multi-configuration Breit-Pauli AUTOSTRUCTURE calculations for the dielectronic recombination of Fe^{13+}. We present a detailed comparison of the results with the high-energy resolution measurements reported recently from the Heidelberg Test Storage Ring by Schmidt et al. Many Rydberg series contribute significantly from this initial 3s^2 3p M-shell ion, resulting in a complex recombination `spectrum'. While there is much close agreement between theory and experiment, differences of typically 50% in the summed resonance strengths over 0.1-10 eV result in the experimentally based total Maxwellian recombination rate coefficient being a factor of 1.52-1.38 larger than theory over 10^4-10^5 K, which is a typical temperature range of peak abundance for Fe^{13+} in a photoionized plasma. Nevertheless, this theoretical recombination rate coefficient is an order of magnitude larger than that used by modellers to-date. This may help explain the discrepancy between the iron M-shell ionization balance predicted by photoionization modelling codes such as ION and CLOUDY and that deduced from the iron M-shell unresolved-transition-array absorption feature observed in the X-ray spectrum of many active galactic nuclei. Similar data are required for Fe^{8+} through Fe^{12+} to remove the question mark hanging over the atomic data though.

N. R. Badnell

2006-07-18T23:59:59.000Z

170

High strength-high conductivity Cu-Fe composites produced by powder compaction/mechanical reduction  

DOE Patents (OSTI)

A particulate mixture of Cu and Fe is compacted and mechanically reduced to form an ''in-situ'' Cu-Fe composite having high strength and high conductivity. Compaction and mechanical reduction of the particulate mixture are carried out at a temperature and time at temperature selected to avoid dissolution of Fe into the Cu matrix particulates to a harmful extent that substantially degrades the conductivity of the Cu-Fe composite. 5 figures.

Verhoeven, J.D.; Spitzig, W.A.; Gibson, E.D.; Anderson, I.E.

1991-08-27T23:59:59.000Z

171

Novel La(Fe,Si) 13 -Based Composites for Magnetic Refrigeration  

Science Conference Proceedings (OSTI)

Nanocomposite Alloy Design for High Frequency Power Conversion Applications Novel La(Fe,Si)13-Based Composites for Magnetic Refrigeration.

172

Magnetocaloric Effect in GdFeCo-Based Melt-Spun Ribbons  

Science Conference Proceedings (OSTI)

Nanocomposite Alloy Design for High Frequency Power Conversion Applications Novel La(Fe,Si)13-Based Composites for Magnetic Refrigeration.

173

High strength-high conductivity Cu--Fe composites produced by powder compaction/mechanical reduction  

DOE Patents (OSTI)

A particulate mixture of Cu and Fe is compacted and mechanically reduced to form an "in-situ" Cu-Fe composite having high strength and high conductivity. Compaction and mechanical reduction of the particulate mixture are carried out at a temperature and time at temperature selected to avoid dissolution of Fe into the Cu matrix particulates to a harmful extent that substantially degrades the conductivity of the Cu-Fe composite.

Verhoeven, John D. (Ames, IA); Spitzig, William A. (Ames, IA); Gibson, Edwin D. (Ames, IA); Anderson, Iver E. (Ames, IA)

1991-08-27T23:59:59.000Z

174

Microstructure evaluation for Dy-free Nd-Fe-B sintered magnets with high coercivity  

Science Conference Proceedings (OSTI)

Nd-Fe-B sinteredmagnets are used for motors of hybrid or electric vehicles due to their high energy products. Dy is added to Nd-Fe-B sinteredmagnets to work in a high temperature environment. Although the addition of Dy decreases the magnetization of Nd-Fe-B magnets

R. Goto; M. Matsuura; S. Sugimoto; N. Tezuka; Y. Une; M. Sagawa

2012-01-01T23:59:59.000Z

175

Fe K-edge X-ray resonant magnetic scattering from Ba(Fe1?xCox)2As2 superconductors  

SciTech Connect

We present an X-ray resonant magnetic scattering study at the Fe-K absorption edge of the BaFe2As2 compound. The energy spectrum of the resonant scattering, together with our calculation using the full-potential linear-augmented plane wave method with a local density functional suggests that the observed resonant scattering arises from electric dipole (E1) transitions. We discuss the role of Fe K-edge X-ray resonant magnetic scattering in understanding the relationship between the structure and the antiferromagnetic transition in the doped Ba(Fe1?xCox)2As2 superconductors.

Kim, Min Gyu; Kreyssig, Andreas; Lee, Yongbin; McQueeney, Robert J.; Harmon, Bruce N.; Goldman, Alan I.

2012-06-15T23:59:59.000Z

176

Growth Diagram and Magnetic Properties of Hexagonal LuFe2O4 Thin Films  

Science Conference Proceedings (OSTI)

A growth diagram of Lu-Fe-O compounds on an MgO (111) substrate using pulsed laser deposition is constructed according to the experimental data. The LuFe2O4 phase can only be grown in a small range of temperature and O2 pressure conditions. Fundamental understanding of the growth mechanism of Lu-Fe-O compound films are gained in terms of the thermal chemistry at the surface. Superparamagnetism is observed in a film of LuFe2O4 clusters separated by the hexagonal LuFeO3 phase and structural defects.

Wang, Wenbin [ORNL; Gai, Zheng [ORNL; Chi, Miaofang [ORNL; Fowlkes, Jason Davidson [ORNL; Yi, Jieyu [ORNL; Zhu, Leyi [Argonne National Laboratory (ANL); Cheng, Xuemei [Bryn Mawr College; Keavney, David [Argonne National Laboratory (ANL); Snijders, Paul C [ORNL; Ward, Thomas Z [ORNL; Shen, Jian [ORNL; Xu, Xiaoshan [ORNL

2012-01-01T23:59:59.000Z

177

Eldorado at Santa Fe, New Mexico: Energy Resources | Open Energy  

Open Energy Info (EERE)

Santa Fe, New Mexico: Energy Resources Santa Fe, New Mexico: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.526365°, -105.93424° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.526365,"lon":-105.93424,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

178

Reactive gas atomization processing for Fe-based ODS alloys  

Science Conference Proceedings (OSTI)

Gas atomization reaction synthesis was employed as a simplified method for processing oxide dispersion forming precursor Fe-based powders (e.g., Fe-Cr-Y-Hf). During this process a reactive atomization gas (i.e., Ar-O{sub 2}) was used to oxidize the powder surfaces during primary break-up and rapid solidification of the molten alloy. This resulted in envelopment of the powders by an ultra-thin (t dispersion strengthened microstructures were engineered from different powder particle size ranges, illustrating microstructural control as a function of particle solidification rate. Additionally, preliminary thermal-mechanical processing was used to develop a fine scale dislocation substructure for ultimate strengthening of the alloy.

Rieken, J.R.; Anderson, I.E.; Kramer, M.J.; Odette, G.R.; Stergarc, E.; Haney, E.

2011-08-08T23:59:59.000Z

179

Fe/V Redox Flow Battery Electrolyte Investigation and Optimization  

Science Conference Proceedings (OSTI)

Recently invented Fe/V redox flow battery (IVBs) system has attracted more and more attentions due to its long-term cycling stability. In this paper, the factors (such as compositions, state of charge (SOC) and temperatures) influencing the stability of electrolytes in both positive and negative half-cells were investigated by an extensive matrix study. Thus an optimized electrolyte, which can be operated in the temperature ranges from -5oC to 50oC without any precipitations, was identified. The Fe/V flow cells using the optimized electrolytes and low-cost membranes exhibited satisfactory cycling performances at different temperatures. The efficiencies, capacities and energy densities of flow batteries with varying temperatures were discussed in detail.

Li, Bin; Li, Liyu; Wang, Wei; Nie, Zimin; Chen, Baowei; Wei, Xiaoliang; Luo, Qingtao; Yang, Zhenguo; Sprenkle, Vincent L.

2013-05-01T23:59:59.000Z

180

Reaction-based reactive transport modeling of Fe(III)  

Science Conference Proceedings (OSTI)

This research project (started Fall 2004) was funded by a grant to Argonne National Laboratory, The Pennsylvania State University, and The University of Alabama in the Integrative Studies Element of the NABIR Program (DE-FG04-ER63914/63915/63196). Dr. Eric Roden, formerly at The University of Alabama, is now at the University of Wisconsin, Madison. Our project focuses on the development of a mechanistic understanding and quantitative models of coupled Fe(III)/U(VI) reduction in FRC Area 2 sediments. This work builds on our previous studies of microbial Fe(III) and U(VI) reduction, and is directly aligned with the Scheibe et al. NABIR FRC Field Project at Area 2.

Kemner, K.M.; Kelly, S.D.; Burgos, Bill; Roden, Eric

2006-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Santa Fe Springs, California: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Fe Springs, California: Energy Resources Fe Springs, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 33.9472359°, -118.0853451° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.9472359,"lon":-118.0853451,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

182

Microsoft PowerPoint - Kickoff Meeting DE-FE0002112  

NLE Websites -- All DOE Office Websites (Extended Search)

Project Project DE FE0002112 Project DE-FE0002112 Title: Measurements of 222 Rn, 220 Rn, and CO 2 Emissions in Natural CO 2 Fields in Wyoming: MVA Techniques for in Natural CO 2 Fields in Wyoming: MVA Techniques for Determining Gas Transport and Caprock Integrity University of Wyoming University of Wyoming Presenters: Drs. John Kaszuba and Ken Sims Department of Geology & Geophysics p gy p y February 24-26, 2011 Project Participants Project Participants * Faculty/PIs: John Kaszuba & Ken Sims Faculty/PIs: John Kaszuba & Ken Sims * Graduate Students (MS): Ti M l - Tim Moloney - Allison Pluda * Undergraduate students: - Virginia Marcon - Matt Carberry - Katelynd Faler Introduction * Background - Natural CO 2 analogues coincide with mapped areas of elevated gamma background radioactivity that

183

Melting and casting of FeAl-based cast alloy  

SciTech Connect

The FeAl-based intermetallic alloys are of great interest because of their low density, low raw material cost, and excellent resistance to high-temperature oxidation, sulfidation, carburization, and molten salts. The applications based on these unique properties of FeAl require methods to melt and cast these alloys into complex-shaped castings and centrifugal cast tubes. This paper addresses the melting-related issues and the effect of chemistry on the microstructure and hardness of castings. It is concluded that the use of the Exo-Melt{trademark} process for melting and the proper selection of the aluminum melt stock can result in porosity-free castings. The FeAl alloys can be melted and cast from the virgin and revert stock. A large variation in carbon content of the alloys is possible before the precipitation of graphite flakes occurs. Titanium is a very potent addition to refine the grain size of castings. A range of complex sand castings and two different sizes of centrifugal cast tubes of the alloy have already been cast.

Sikka, V.K. [Oak Ridge National Lab., TN (United States); Wilkening, D. [Columbia Falls Aluminum Co., Columbia Falls, MT (United States); Liebetrau, J.; Mackey, B. [AFFCO, L.L.C., Anaconda, MT (United States)

1998-11-01T23:59:59.000Z

184

Non-collinearity of the magnetic structure of TbFe 10 V 2 J.M. Cadogan  

E-Print Network (OSTI)

for Molecular Sciences, National Research Council, Chalk River Laboratories, Ontario, Canada K0J 1J0 K. Suzuki, the R(Fe; M) 12 compounds pro- vide much useful information on the crystal-#12;eld interac- tions at the R 3+ ion, the R{Fe and Fe{Fe exchange inter- actions and the complex interplay between the crystal

Ryan, Dominic

185

Isolation and microbial reduction of Fe(III) phyllosilicates from subsurface sediments  

Science Conference Proceedings (OSTI)

Fe(III)-bearing phyllosilicates can be important sources of Fe(III) for dissimilatory microbial iron reduction in clay-rich anoxic soils and sediments. The goal of this research was to isolate Fe(III) phyllosilicate phases, and if possible, Fe(III) oxide phases, from a weathered shale saprolite sediment in order to permit experimentation with each phase in isolation. Physical partitioning by density gradient centrifugation did not adequately separate phyllosilicate and Fe(III) oxide phases (primarily nanoparticulate goethite). Hence we examined the ability of chemical extraction methods to remove Fe(III) oxides without significantly altering the properties of the phyllosilicates. XRD analysis showed that extraction with oxalate alone or oxalate in the presence of added Fe(II) altered the structure of Fe-bearing phyllosilicates in the saprolite. In contrast, citrate-bicarbonate-dithionite (CBD) extraction at room temperature and 80C led to minimal alteration of phyllosilicate structures. Reoxidation of CDB-extracted sediment with H2O2 restored phyllosilicate structure (i.e. d-spacing) and redox speciation to conditions similar to that in the pristine sediment. The extent of microbial (Geobacter sulfurreducens) reduction of Fe(III) phyllosilicates isolated by CDB extraction (ca. 16 %) was comparable to what took place in pristine sediments as determined by Mossbauer spectroscopy (ca. 18 % reduction). These results suggest that materials isolated by CDB extraction and H2O2 reoxidation are appropriate targets for detailed studies of natural soil/sediment Fe(III) phyllosilicate reduction.

Wu, Tao; Shelobolina, Evgenya S.; Xu, Huifang; Konishi, Hiromi; Kukkadapu, Ravi K.; Roden, Eric E.

2012-10-12T23:59:59.000Z

186

Microsoft Word - FE STRATEGIC HUMAN CAPITAL MGMT PLAN082006-AB.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Strategic Human Capital Management Plan September 2006 OFFICE OF FOSSIL ENERGY GOAL The Office of Fossil Energy (FE) will insure the adequate, efficient, and environmentally sound production, storage, and use of fossil fuels to meet our Nation's energy needs. FE HUMAN RESOURCES VISION FE's human capital vision is to be an employer of choice with a diverse, well-trained, and motivated workforce that will excel. The FE Human Capital Management Plan (HCMP) describes our mission and objectives, vision, human capital strategies and implementing framework, as well as a number of ongoing and new initiatives. We are implementing an integrated human capital system that plans and executes FE-wide human capital activities. INTRODUCTION FE views its human capital resources as its most important asset. Without a highly qualified and

187

Surface Geometric and Electronic Structures of BaFe2As2(001)  

SciTech Connect

BaFe{sub 2}As{sub 2} exhibits properties that are characteristic of the parent compounds of the newly discovered iron (Fe)-based high-T{sub c} superconductors. By combining real-space imaging of scanning tunneling microscopy and spectroscopy (STM+STS) with momentum-space quantitative low-energy electron diffraction (LEED), we have identified the surface plane of cleaved BaFe{sub 2}As{sub 2} crystals as the As terminated Fe-As layer - the plane where superconductivity occurs. LEED and STM+STS data on the BaFe{sub 2}As{sub 2}(001) surface indicate an ordered arsenic (As) terminated metallic surface without reconstruction or lattice distortion. It is surprising that STM images the different Fe-As orbitals associated with the orthorhombic structure, but not the As atoms in the surface plane.

Nascimento, V. B. [University of Tennessee, Knoxville (UTK); Li, Ang [University of Houston, Houston; Jayasundara, Dilushan [University of Houston, Houston; Xuan, Yi [University of Houston, Houston; O'Neal, Jared [University of Houston, Houston; Pan, Shuheng [University of Houston, Houston; Chien, T. Y. [University of Tennessee, Knoxville (UTK); Hu, Biao [University of Tennessee, Knoxville (UTK); He, X. B. [Louisiana State University; Li, Guorong [University of Tennessee, Knoxville (UTK); Sefat, A. S. [Oak Ridge National Laboratory (ORNL); McGuire, Michael A [ORNL; Sales, Brian C [ORNL; Mandrus, David [ORNL; Pan, Minghu [ORNL; Zhang, Jiandi [Louisiana State University; Jin, R. [Louisiana State University; Plummer, E. Ward [Louisiana State University

2009-01-01T23:59:59.000Z

188

Columnar grain growth of FePt(L1{sub 0}) thin films  

SciTech Connect

An experimental approach for obtaining perpendicular FePt-SiOx thin films with a large height to diameter ratio FePt(L1{sub 0}) columnar grains is presented in this work. The microstructure for FePt-SiOx composite thin films as a function of oxide volume fraction, substrate temperature, and film thickness is studied by plan view and cross section TEM. The relations between processing, microstructure, epitaxial texture, and magnetic properties are discussed. By tuning the thickness of the magnetic layer and the volume fraction of oxide in the film at a sputtering temperature of 410 deg. C, a 16 nm thick perpendicular FePt film with {approx}8 nm diameter of FePt grains was obtained. The height to diameter ratio of the FePt grains was as large as 2. Ordering at lower temperature can be achieved by introducing a Ag sacrificial layer.

Yang En; Ho Hoan [Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Laughlin, David E. [Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); ALCOA Professor of Physical Metallurgy, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Zhu Jiangang [Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); ABB Professor of Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)

2012-04-01T23:59:59.000Z

189

Dielectric relaxations and dielectric response in multiferroic BiFeO{sub 3} ceramics  

SciTech Connect

Single-phase multiferroic BiFeO{sub 3} ceramics were fabricated using pure precipitation-prepared BiFeO{sub 3} powder. Dielectric response of BiFeO{sub 3} ceramics was investigated over a wide range of temperature and frequency. Our results reveal that the BiFeO{sub 3} ceramic sintered at 700 deg. C exhibited high dielectric permittivity, and three dielectric relaxations were observed. A Debye-type dielectric relaxation at low temperatures (-50 to 20 deg. C) is attributed to the carrier hopping process between Fe{sup 2+} and Fe{sup 3+}. The other two dielectric relaxations at the temperature ranges 30-130 deg. C and 140-200 deg. C could be due to the grain boundary effect and the defect ordering and/or the conductivity, respectively.

Hunpratub, Sitchai; Thongbai, Prasit; Maensiri, Santi [Department of Physics, Khon Kaen University, Khon Kaen 40002 (Thailand); Yamwong, Teerapon [National Metals and Materials Technology Center (MTEC), Thailand Science Park, Pathumthani 12120 (Thailand); Yimnirun, Rattikorn [Department of Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200 (Thailand)

2009-02-09T23:59:59.000Z

190

Large scale shell model calculations for even-even $^{62-66}$Fe isotopes  

E-Print Network (OSTI)

The recently measured experimental data of Legnaro National Laboratories on neutron rich even isotopes of $^{62-66}$Fe with A=62,64,66 have been interpreted in the framework of large scale shell model. Calculations have been performed with a newly derived effective interaction GXPF1A in full $\\it{fp}$ space without truncation. The experimental data is very well explained for $^{62}$Fe, satisfactorily reproduced for $^{64}$Fe and poorly fitted for $^{66}$Fe. The increasing collectivity reflected in experimental data when approaching N=40 is not reproduced in calculated values. This indicates that whereas the considered valence space is adequate for $^{62}$Fe, inclusion of higher orbits from $\\it{sdg}$ shell is required for describing $^{66}$Fe.

P. C. Srivastava; I. Mehrotra

2009-07-23T23:59:59.000Z

191

Study of intergranular embrittlement in Fe-12Mn alloys  

Science Conference Proceedings (OSTI)

A high resolution scanning Auger microscopic study has been performed on the intergranular fracture surfaces of Fe-12Mn steels in the as-austenitized condition. Fracture mode below the ductile-brittle transition temperature was intergranular whenever the alloy was quenched from the austenite field. The intergranular fracture surface failed to reveal any consistent segregation of P, S, As, O, or N. The occasional appearance of S or O on the fracture surface was found to be due to a low density precipitation of MnS and MnO/sub 2/ along the prior austenite boundaries. An AES study with Ar/sup +/ ion-sputtering showed no evidence of manganese enrichment along the prior austenite boundaries, but a slight segregation of carbon which does not appear to be implicated in the tendency toward intergranular fracture. Addition of 0.002% B with a 1000/sup 0/C/1h/WQ treatment yielded a high Charpy impact energy at liquid nitrogen temperature, preventing the intergranular fracture. High resolution AES studies showed that 3 at. % B on the prior austenite grain boundaries is most effective in increasing the grain boundary cohesive strength in an Fe-12Mn alloy. Trace additions of Mg, Zr, or V had negligible effects on the intergranular embrittlement. A 450/sup 0/C temper of the boron-modified alloys was found to cause tempered martensite embrittlement, leading to intergranular fracture. The embrittling treatment of the Fe-12Mn alloys with and without boron additions raised the ductile-brittle transition by 150/sup 0/C. This tempered martensite embrittlement was found to be due to the Mn enrichment of the fracture surface to 32 at. % Mn in the boron-modified alloy and 38 at. % Mn in the unmodified alloy. The Mn-enriched region along the prior austenite grain boundaries upon further tempering is believed to cause nucleation of austenite and to change the chemistry of the intergranular fracture surfaces. 61 figures.

Lee, H.J.

1982-06-01T23:59:59.000Z

192

Site-specific electronic configurations of Fe 3d states by energy loss by channeled electrons  

SciTech Connect

Site-specific configurations of Fe 3d electrons in a spinel ferrite were investigated by electron energy loss spectroscopy under electron channeling conditions. Site-specific spectra were extracted by applying a multivariate curve resolution (MCR) technique to the data set. An electronic difference in the Fe sites caused by ligand field splitting of trivalent Fe was probed. This demonstrated the promise of site-specific valence and spin state analysis in spintronics applications of spinel ferrites.

Tatsumi, Kazuyoshi; Muto, Shunsuke; Nishida, Ikuo [Department of Materials, Physics, and Energy Engineering, Nagoya University, Chikusa, Nagoya 464-8603 (Japan); Rusz, Jan [Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala (Sweden)

2010-05-17T23:59:59.000Z

193

Structure and magnetic properties of the cubic oxide fluoride BaFeO{sub 2}F  

SciTech Connect

Fluorination of the parent oxide, BaFeO{sub 3-{delta}}, with polyvinylidine fluoride gives rise to a cubic compound with a=4.0603(4) A at 298 K. {sup 57}Fe Moessbauer spectra confirmed that all the iron is present as Fe{sup 3+}. Neutron diffraction data showed complete occupancy of the anion sites, indicating a composition BaFeO{sub 2}F, with a large displacement of the iron off-site. The magnetic ordering temperature was determined as T{sub N}=645{+-}5 K. Neutron diffraction data at 4.2 K established G-type antiferromagnetism with a magnetic moment per Fe{sup 3+} ion of 3.95 {mu}{sub B}. However, magnetisation measurements indicated the presence of a weak ferromagnetic moment that is assigned to the canting of the antiferromagnetic structure. {sup 57}Fe Moessbauer spectra in the temperature range 10-300 K were fitted with a model of fluoride ion distribution that retains charge neutrality of the perovskite unit cell. - Graphical abstract: The cubic oxide fluoride of composition BaFeO{sub 2}F has been synthesised and characterised. Highlights: > Fluorination of BaFeO{sub 3-{delta}} with polyvinylidene fluoride gives a cubic oxide fluoride of composition BaFeO{sub 2}F. > BaFeO{sub 2}F adopts a canted antiferromagnetic structure and is different from the related phase of composition SrFeO{sub 2}F. > A model of fluoride ion distribution about iron in BaFeO{sub 2}F has been explored.

Berry, Frank J., E-mail: f.j.berry.1@bham.ac.uk [School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom) and Department of Chemistry, Open University, Walton Hall, Milton Keynes MK7 6AA (United Kingdom); Coomer, Fiona C.; Hancock, Cathryn [School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); Helgason, Orn [Science Institute, University of Iceland, Dunhagi 3, IS-107 Reykjavik (Iceland); Moore, Elaine A. [Department of Chemistry, Open University, Walton Hall, Milton Keynes MK7 6AA (United Kingdom); Slater, Peter R.; Wright, Adrian J. [School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); Thomas, Michael F. [Department of Physics, The University of Liverpool, Liverpool L69 3BX (United Kingdom)

2011-06-15T23:59:59.000Z

194

Li/FeS battery design for an electric van  

DOE Green Energy (OSTI)

Li-alloy/FeS battery designs, based upon a well-characterized 300-Ah cell developed by Westinghouse Oceanic Division have been developed for four electric vans currently under development by the US Department of Energy and the Electric Power Research Institute. Computerized cell models were developed to calculate power, energy, weight, and volume values for a cell while varying key design parameters. Battery specifications and vehicle performance are given for the Chrysler TE Van, GMC G-Van, Ford ETX-II, and the Eaton DSEP. 2 refs., 1 fig., 2 tabs.

Chilenskas, A.A.; Barlow, G.

1989-01-01T23:59:59.000Z

195

Improved oxidation sulfidation resistance of Fe-Cr-Ni alloys  

DOE Patents (OSTI)

High temperature resistance of Fe-Cr-Ni alloy compositions to oxidative and/or sulfidative conditions is provided by the incorporation of about 1 to 8 wt % of Zr or Nb and results in a two-phase composition having an alloy matrix as the first phase and a fine grained intermetallic composition as the second phase. The presence and location of the intermetallic composition between grains of the matrix provides mechanical strength, enhanced surface scale adhesion, and resistance to corrosive attack between grains of the alloy matrix at temperatures of 500 to 1000/sup 0/C.

Natesan, K.; Baxter, D.J.

1983-07-26T23:59:59.000Z

196

Measurement of the transport spin polarization of FeV using point-contact Andreev reflection  

SciTech Connect

The Fe1 xVx alloy system exhibits the lowest known Gilbert relaxation rate of any ferromagnetic metal or binary alloy with G1 435MHz at x1 427% V. Low relaxation rates are of particular interest in modern spin electronic applications involving spin torque. The transport spin polarization of a series of sputtered epitaxial Fe1 xVx samples was measured using point contact Andreev reflection. Values of the transport spin polarization agree well with those measured for pure Fe and are independent of composition. The results indicate that the substitution of up to 50% of V for Fe does not reduce the spin polarization in the alloy.

Bailey, William [Columbia University; Osofsky, Mike [Naval Research Laboratory, Washington, D.C.; Bussman, Konrad [Naval Research Laboratory, Washington, D.C.; Parker, David S [ORNL; Cheng, L [Columbia University

2013-01-01T23:59:59.000Z

197

Improvement of SOFC Electrodes through Catalyst Infiltration & Control of Cr Volatilization from FeCr Components  

DOE Green Energy (OSTI)

This presentation discusses the improvement of SOFC electrodes through catalyst infiltration and control of Cr volatilization from FeCr components.

Visco, S.J.; Jacobson, C.; Kurokawa, H.; Sholklapper, T.; Lu, C.; De Jonghe, L.

2005-01-28T23:59:59.000Z

198

Recovery and Refunctionalization of LiFePO4 Cathode from End-of ...  

Science Conference Proceedings (OSTI)

Symposium, Battery Recycling. Presentation Title, Recovery and Refunctionalization of LiFePO4 Cathode from End-of-Life Commercial Lithium Ion Batteries.

199

Coercivity Enhancement of NdFeB Sintered Magnet by Grain ...  

Science Conference Proceedings (OSTI)

... Institute for Rare metals (KIRAM) funded by Korea Institute of Industrial Technology(KITECH, Korea) ... Fe and Mn Based Materials for Magnetic Refrigeration.

200

Microsoft Word - DE-FE0010160 Q1 report.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

Oil & Natural Gas Technology DOE Award No.: DE-FE0010160 Quarterly Research Performance Progress Report (Period ending 12312012) Advanced Hydrate Reservoir Modeling Using Rock...

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Ce-Doped BiFeO3 Nanoparticles: Sol-Gel Synthesis and ...  

Science Conference Proceedings (OSTI)

... Epitaxial BiFeO3 Thin Films Magnetoelastic/Piezoelectric Laminated Structures for Tunable Remote Contact-Less Magnetic Sensing and Energy Harvesting.

202

Disorder effects in half-metallic Sr 2 FeMoO 6 single crystals  

Science Conference Proceedings (OSTI)

Double perovskites such as Sr 2 FeMoO 6 (SFMO) have been predicted to be half-metallic (100% spin polarized). However

Raghava P. Panguluri; Sheng Xu; Yutaka Moritomo; I. V. Solovyev; B. Nadgorny

2009-01-01T23:59:59.000Z

203

He Ion Irradiation Damage in Fe/W Nanolayer Films - TMS  

Science Conference Proceedings (OSTI)

He Ion Irradiation Damage in Fe/VV N anolayer Films. Nan Li, X. Zhang. Department of Mechanical Engineering, Texas A&M University, College Station,...

204

SF 6432-FE (02-01-13) Fixed Price Outside US  

NLE Websites -- All DOE Office Websites (Extended Search)

CORPORATION SF 6432-FE (072013) SECTION II STANDARD TERMS AND CONDITIONS FOR FIXED PRICE CONTRACTS OUTSIDE OF THE UNITED STATES OF AMERICA THE FOLLOWING CLAUSES APPLY TO...

205

Thermal and irradiation-induced phase separation in Fe-Ni based ...  

Science Conference Proceedings (OSTI)

magnetic, low-expansion Invar-type alloys and model austenitic Fe-Ni based alloys studied for ...... fast reactors such as the Fast Flux Test Facility (FFTF).

206

CORROSION OF Fe-10Al-Cr ALLOYS BY COAL CHAR  

E-Print Network (OSTI)

off-gas from a typical gasifier contains large percentagesIOAl-Cr alloys at coal-gasifier This FeS and CaS0 operating

Gordon, B.A.

2011-01-01T23:59:59.000Z

207

Formation of 1:13 Phase in La(Fe,Si)  

Science Conference Proceedings (OSTI)

Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Enhancement of the Refrigerant Capacity in Partially Crystallized Gd-Fe-Al-B...

208

High Anisotropy and High Electrical Resistivity Nd-Fe-B/CaF2 ...  

Science Conference Proceedings (OSTI)

Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Enhancement of the Refrigerant Capacity in Partially Crystallized Gd-Fe-Al-B...

209

Thermal Stability of HDDR-treated Nd-Fe-B-type Magnetic Powder  

Science Conference Proceedings (OSTI)

Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Enhancement of the Refrigerant Capacity in Partially Crystallized Gd-Fe-Al-B...

210

H2: Coercivity and Grain Boundary Microstructure in Sintered Nd-Fe ...  

Science Conference Proceedings (OSTI)

Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Enhancement of the Refrigerant Capacity in Partially Crystallized Gd-Fe-Al-B...

211

Microstructure, Magnetic and Electrical Resistance of NdFeB/NdF3 ...  

Science Conference Proceedings (OSTI)

Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Enhancement of the Refrigerant Capacity in Partially Crystallized Gd-Fe-Al-B...

212

H20: Synthesis of Fe100-xNx Powders by Mechanical Alloying and ...  

Science Conference Proceedings (OSTI)

Alloy Design and Powder Processing of Mn-Al Based Materials for Rare Earth ... Enhancement of the Refrigerant Capacity in Partially Crystallized Gd-Fe-Al-B...

213

Bulk La(Fe,Si) 13 -based Materials Prepared by SPS Process ...  

Science Conference Proceedings (OSTI)

Giant Low-Field Magnetocaloric Effect with Small Hysteresis Near Room ... Large Room Temperature Magnetoresistance in FeCo-SiN Granular Films Magnetic...

214

D21 Synthesis of Fe Stainless Steel Alloy NanopowderS by ...  

Science Conference Proceedings (OSTI)

D14 Gold Nanoparticles in Red Ruby Glasses Used for Decoration in Thailand D15 Soft Magnetic Properties of Nanocrystalline Fe-based P/M Cores Mixed...

215

C48 TiFe Alloy Prepared by Molten Salt Electrolysis Ilmenite  

Science Conference Proceedings (OSTI)

D14 Gold Nanoparticles in Red Ruby Glasses Used for Decoration in Thailand D15 Soft Magnetic Properties of Nanocrystalline Fe-based P/M Cores Mixed...

216

Fe and Al Abundances for 180 Red Giants in the Globular Cluster Omega Centauri (NGC 5139)  

E-Print Network (OSTI)

We present radial velocities, Fe, and Al abundances for 180 red giant branch (RGB) stars in the Galactic globular cluster Omega Centauri ($\\omega$ Cen). The majority of our data lie in the range 11.0$Al/Fe] ratios exhibit large star--to--star scatter for all populations, with the more than 1.0 dex range of [Al/Fe] decreasing for stars more metal--rich than [Fe/H]$\\sim$--1.4. The minimum [Al/Fe] abundance observed for all metallicity populations is [Al/Fe]$\\sim$+0.15. The maximum abundance of log $\\epsilon$(Al) is reached for stars with [Fe/H]$\\sim$--1.4 and does not increase further with stellar metallicity. We interpret these results as evidence for type II SNe providing the minimum [Al/Fe] ratio and a mass spectrum of intermediate mass asymptotic giant branch stars causing the majority of the [Al/Fe] scatter. These results seem to fit in the adopted scheme that star formation occurred in $\\omega$ Cen over $>$1 Gyr.

Christian I. Johnson; Catherine A. Pilachowski; Jennifer Simmerer; Dustin Schwenk

2008-04-16T23:59:59.000Z

217

Toward the Development of Dy-free High Coercivity Nd-Fe-B ...  

Science Conference Proceedings (OSTI)

... Nd-Fe-B Permanent Magnets Unique Exchange Bias Induced by Antiferromagnetic Cr-oxide ZnO-graphene Hybrid Quantum Dots Light Emitting Diode...

218

Development of Heusler-type Fe 2 VAl alloys for thermoelectric ...  

Science Conference Proceedings (OSTI)

Abstract Scope, A Heusler alloy, Fe2VAl, is a promising candidate for thermoelectric power generation because of its high thermoelectric power...

219

Phonon densities of states of face-centered-cubic Ni-Fe alloys  

Science Conference Proceedings (OSTI)

Inelastic neutron scattering and nuclear resonant inelastic x-ray scattering were used to determine the phonon densities of states of face-centered-cubic Ni-Fe alloys. Increasing Fe concentration results in an average softening of the phonon modes. Chemical ordering of the Ni0.72Fe0.28 alloy results in a reduction of the partial vibrational entropy of the Fe atoms but does not significantly change the partial vibrational entropy of the Ni atoms. Changes in the phonon densities of states with composition and chemical ordering are discussed and analyzed with a cluster expansion method.

Lucas, Matthew [United States Air Force Research Laboratory, Wright-Patterson Air Force Base] [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Mauger, L [California Institute of Technology, W. M. Keck Laboratory, Pasadena] [California Institute of Technology, W. M. Keck Laboratory, Pasadena; Munoz, Jorge A. [California Institute of Technology, Pasadena] [California Institute of Technology, Pasadena; Halevy, I [California Institute of Technology, Pasadena] [California Institute of Technology, Pasadena; Horwath, J [United States Air Force Research Laboratory, Wright-Patterson Air Force Base] [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Semiatin, S L [United States Air Force Research Laboratory, Wright-Patterson Air Force Base] [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Leontsev, S. O. [University of Kentucky, Lexington] [University of Kentucky, Lexington; Stone, Matthew B [ORNL] [ORNL; Abernathy, Douglas L [ORNL] [ORNL; Xiao, Yuming [Carnegie Institution of Washington] [Carnegie Institution of Washington; Chow, P [HPCAT Geophysical Lab, Argonne, IL] [HPCAT Geophysical Lab, Argonne, IL; Fultz, B. [California Institute of Technology, Pasadena] [California Institute of Technology, Pasadena

2013-01-01T23:59:59.000Z

220

Atomic structure and magnetic properties of Fe1-xCox alloys  

SciTech Connect

Using genetic algorithm with first-principle calculations, we searched for low-energy crystal structures of Fe1?xCox alloys. We found that Fe1?xCox alloys are highly configurationally degenerate with many additional off-stoichiometric stable structures to the well-known B2 structure. The average magnetic moment of Fe atom increases with concentration of Co in the alloy, while that of Co atom is almost constant, which are consistent with experiments and earlier studies. The magnetic moment of Fe atom is strongly dependent on the number of Co nearest neighbor and it increases with this number.

Nguyen, Manh Cuong; Zhao, Xin; Ji, Min; Wang, Cai-Zhuang; Harmon, Bruce; Ho, Kai-Ming

2012-03-09T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Can Vanadium Be Substituted into LiFePO4  

DOE Green Energy (OSTI)

Vanadium is shown to substitute for iron in the olivine LiFePO{sub 4} up to at least 10 mol %, when the synthesis is carried out at 550 C. In the solid solution LiFe{sub 1-3y/2}V{sub y}PO{sub 4}, the a and b lattice parameters and cell volume decrease with increasing vanadium content, while the c lattice parameter increases slightly. However, when the synthesis is performed at 650 C, a NASICON phase, Li{sub 3}V{sub 2}(PO{sub 4}){sub 3}, is also formed, showing that solid solution is a function of the synthesis temperature. X-ray absorption near-edge structure indicates vanadium is in the 3+ oxidation state and in an octahedral environment. Magnetic studies reveal a shift of the antiferromagnetic ordering transition toward lower temperatures with increasing vanadium substitution, confirming solid solution formation. The addition of vanadium enhances the electrochemical performance of the materials especially at high current densities.

Omenya F.; Nam K.; Chernova N.A.; Upreti S.; Zavalij P.Y.; Nam K.-W.; Yang X.-Q.; Whittingham M.S.

2011-11-08T23:59:59.000Z

222

Reactive gas atomization processing for Fe-based ODS alloys  

SciTech Connect

Gas atomization reaction synthesis was employed as a simplified method for processing oxide dispersion forming precursor Fe-based powders (e.g., FeCrYHf). During this process a reactive atomization gas (i.e., ArO2) was used to oxidize the powder surfaces during primary break-up and rapid solidification of the molten alloy. This resulted in envelopment of the powders by an ultra-thin (t < 50 nm) metastable Cr-enriched oxide shell that was used as a vehicle to transport oxygen into the consolidated microstructure. Subsequent elevated temperature heat treatment promoted thermodynamically driven oxygen exchange reactions between trapped films of Cr-enriched oxide and internal (Y, Hf)-enriched intermetallic precipitates, resulting in highly stable nano-metric mixed oxide dispersoids (i.e., YHfO) that were identified with X-ray diffraction. Transmission electron microscopy and atom probe tomography results also revealed that the size and distribution of the dispersoids were found to depend strongly on the original rapidly solidified microstructure. To exploit this, several oxide dispersion strengthened microstructures were engineered from different powder particle size ranges, illustrating microstructural control as a function of particle solidification rate. Additionally, preliminary thermalmechanical processing was used to develop a fine scale dislocation substructure for ultimate strengthening of the alloy.

Rieken, Joel R [Ames Laboratory; Anderson, Iver E [Ames Laboratory; Kramer, Matthew J [Ames Laboratory; Odette, G R [University of California; Stergar, E [University of California; Haney, E [University of California

2011-08-24T23:59:59.000Z

223

Thermodynamic Modeling and Experimental Study of the Fe-Cr-Zr System  

Science Conference Proceedings (OSTI)

Wide applications of zircaloys, stainless steels and their interactions in nuclear reactors require the knowledge on phase stability and thermodynamic property of the Fe-Cr-Zr system. This knowledge is also important to develop new Zr-contained Fe-Cr ferritic steels. This work aims at developing thermodynamic models for describing phase stability and thermodynamic property of the Fe-Cr-Zr system using the Calphad approach coupled with experimental study. Thermodynamic descriptions of the Fe-Cr and Cr-Zr systems were either directly adopted or slightly modified from literature. The Fe-Zr system has been remodeled to accommodate recent ab-initio calculation of formation enthalpies of various Fe-Zr compounds. Reliable ternary experimental data and thermodynamic models were mainly available in the Zr-rich region. Therefore, selected ternary alloys located in the vicinity of the eutectic valley of (Fe,Cr,Zr) and (Fe,Cr)2Zr laves phase in the Fe-rich region have been experimentally investigated in this study. Microstructure has been examined by using scanning electron microscope, energy-dispersive Xray spectroscopy and X-ray diffraction. These experimental results, along with the literature data were then used to develop thermodynamic models for phases in the Fe-Cr-Zr system. Calculated phase equilibria and thermodynamic properties of the ternary system yield satisfactory agreements with available experimental data, which gives the confidence to use these models as building blocks for developing a Zr, Fe and Cr contained multicomponent thermodynamic database for broader applications in nuclear reactors.

Yang, Ying [ORNL; Tan, Lizhen [ORNL; Bei, Hongbin [ORNL; Busby, Jeremy T [ORNL

2013-01-01T23:59:59.000Z

224

A nuclear magnetic resonance probe of Fe-Al and Al20V2Eu intermetallics  

E-Print Network (OSTI)

Al-rich Fe-Al systems (FeAl2, Fe2 Al5 and Fe4Al13) and Al20V2Eu have complicated structures with quasicrystal-like features making these materials potentially of interest for magnetic behavior. However, there is not much work on these materials. To study the variety of magnetic properties, we use NMR, magnetic susceptibility, specific heat and other methods in this work. The microscopic electronic and magnetic properties of the Al-rich Fe-Al system and Al20V2Eu have been studied via 27Al NMR at temperatures between 4 and 500 K. The results of spin lattice relaxation rates reveal a pseudogap in Fe4Al13 and Fe2Al5 around the Fermi-level in the density of states. Besides, a square well gap with a width of 2 meV and center at Fermi energy was detected by specific heat measurements in Fe2Al5. Both Fe4 Al13 and Fe2Al5 are non-magnetic systems with dilute magnetic defects, while FeAl2 is a concentrated local magnetic moment system. In Al20V2Eu, a crossover was observed in NMR, magnetization and transport measurements. Above 40 K, Eu(2+) local magnetic moments dominate; below 40 K, a transition to a Kondo regime is observed, where the Kondo effect leads to the reduction of localized moments due to the formation of a spin-compensated Kondo cloud. With increasing magnetic field, f electrons participate more and more in excitations near the Fermi level and a heavy-Fermion state was observed through specific heat measurements at high magnetic field.

Chi, Ji

2007-08-01T23:59:59.000Z

225

Epitaxial growth of MgO and Fe/MgO/Fe magnetic tunnel junctions on (100)-Si by molecular beam epitaxy  

SciTech Connect

Epitaxial growth of MgO barrier on Si is of technological importance due to the symmetry filtering effect of the MgO barrier in conjunction with bcc-ferromagnets. We study the epitaxial growth of MgO on (100)-Si by molecular beam epitaxy. MgO matches Si with 4:3 cell ratio, which renders Fe to be 45 deg. rotated relative to Si, in sharp contrast to the direct epitaxial growth of Fe on Si. The compressive strains from Si lead to the formation of small angle grain boundaries in MgO below 5 nm, and also affect the transport characteristics of Fe/MgO/Fe magnetic tunnel junctions formed on top.

Miao, G. X.; Veenhuizen, M. J. van; Moodera, J. S. [Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Chang, J. Y. [Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Center for Spintronics Research, Korea Institute of Science and Technology, Seoul 136-791 (Korea, Republic of); Thiel, K.; Seibt, M.; Eilers, G.; Muenzenberg, M. [IV.Physikalisches Institut, Universitaet Goettingen, Goettingen 37073 (Germany)

2008-10-06T23:59:59.000Z

226

Effects of boron composition on tunneling magnetoresistance ratio and microstructure of CoFeB/MgO/CoFeB pseudo-spin-valve magnetic tunnel junctions  

SciTech Connect

The effect of B concentration on the tunneling magnetoresistance (TMR) of (Co{sub 25}Fe{sub 75}){sub 100-x}B{sub x}/MgO/(Co{sub 25}Fe{sub 75}){sub 100-x}B{sub x} (x = 22 and 33) pseudo-spin-valve (P-SV) magnetic tunnel junctions (MTJs) was investigated. The TMR ratios for optimally annealed MTJs with x = 22 and 33 were 340% and 170%, respectively, at room temperature. High resolution transmission electron microscopy (HRTEM) observation showed a weaker (001) texture in the MgO barrier in the MTJ with x = 33. The bottom electrode was not fully crystallized even with a considerable amount of B in the (Co{sub 25}Fe{sub 75}){sub 67}B{sub 33}, while good epitaxy was observed between (001) textured MgO and (Co{sub 25}Fe{sub 75}){sub 78}B{sub 22} electrodes.

Kodzuka, M. [Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-0047 (Japan); Ohkubo, T. [National Institute for Materials Science, Tsukuba 305-0047 (Japan); Hono, K. [Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-0047 (Japan); National Institute for Materials Science, Tsukuba 305-0047 (Japan); Ikeda, S.; Ohno, H. [Center for Spintronics Integrated Systems, Tohoku University, Sendai 980-8577 (Japan); Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577 (Japan); Gan, H. D. [Center for Spintronics Integrated Systems, Tohoku University, Sendai 980-8577 (Japan)

2012-02-15T23:59:59.000Z

227

Data:B6995793-7bbe-4717-8b8a-7fe99c1fe735 | Open Energy Information  

Open Energy Info (EERE)

3-7bbe-4717-8b8a-7fe99c1fe735 3-7bbe-4717-8b8a-7fe99c1fe735 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Arrowhead Electric Coop, Inc Effective date: 2012/07/17 End date if known: Rate name: Interruptable Heat/Water Sector: Description: This rate is applicable for customers who have General Service. Usage under this rate would be tracked by a 2nd meter. Source or reference: Illinois State University Archives Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V):

228

Thermodynamics of the Magnetite-Ulvspinel (Fe3O4-Fe2TiO4) Solid Solution  

Science Conference Proceedings (OSTI)

The thermodynamics of mixing and its dependence on cation distribution in the Fe3O4 14 Fe2TiO4 (magnetite-ulvspinel) spinel solid solution were studied using high temperature oxide melt solution calorimetry and a range of structural and spectroscopic probes. The enthalpies of formation of ilmenite and ulvspinel from the oxides and from the elements were obtained using oxidative drop solution calorimetry at 973 K in molten sodium molybdate. The enthalpy of mixing, determined from the fit to the measured enthalpies of drop solution calorimetry, is endothermic and represented by a quadratic formalism, ?Hmix = (22.60 8.46)x(1x) kJ/mol, where x is the mole fraction of ulvspinel. The entropies of mixing are more complex than those for a regular solution and have been calculated based on average measured and theoretical cation distributions. Calculated free energies of mixing show evidence for a solvus at low temperature in good agreement with that observed experimentally.

Lilova, Kristina I.; Pearce, Carolyn I.; Gorski, Christopher A.; Rosso, Kevin M.; Navrotsky, Alexandra

2012-09-17T23:59:59.000Z

229

Assembly and Evolution of Complex Fe-S Clusters as Revealed by X-ray  

NLE Websites -- All DOE Office Websites (Extended Search)

Assembly and Evolution of Complex Fe-S Clusters Assembly and Evolution of Complex Fe-S Clusters as Revealed by X-ray Crystallography Complex Fe-S cluster-containing enzymes are ubiquitous in nature where they are involved in a number of fundamental reactions for life including carbon dioxide fixation, nitrogen fixation, and hydrogen metabolism. One of the more complex and unusual biological clusters is found in the [FeFe]-hydrogenase. The active-site H-cluster in these enzymes has a [4Fe-4S] subcluster bridged via a cysteine thiolate to a 2Fe subcluster, which in turn is coordinated by CO and CN- ligands and a bridging dithiolate ligand (1). The biologically unique CO and CN- ligands finely tune the 2Fe subcluster of the H-cluster making it able to efficiently catalyze the activation of molecular H2 through the reversible reaction H2 2H+ + 2e-. How this complex metallocluster is assembled in nature is intriguing and the precise mechanism by which various enzymes, scaffolds, and carriers carry out H-cluster maturation is unknown.

230

Substructuring FE-XFE approaches applied to three-dimensional crack propagation  

Science Conference Proceedings (OSTI)

Two substructuring methods are investigated in order to allow for the use of the eXtended Finite Element Method (X-FEM) within commercial finite element (FE) codes without need for modifying their kernel. The global FE problem is decomposed into two ... Keywords: FETI, Fracture mechanics, Substructuring methods, X-FEM

E. Wyart; M. Duflot; D. Coulon; P. Martiny; T. Pardoen; J. -F. Remacle; F. Lani

2008-06-01T23:59:59.000Z

231

Towards a scalable fully-implicit fully-coupled resistive MHD formulation with stabilized FE methods  

Science Conference Proceedings (OSTI)

This paper explores the development of a scalable, nonlinear, fully-implicit stabilized unstructured finite element (FE) capability for 2D incompressible (reduced) resistive MHD. The discussion considers the implementation of a stabilized FE formulation ... Keywords: Direct-to-steady-state, Fully-implicit, Large-scale parallel, Multilevel preconditioner, Newton-Krylov, Resistive MHD, Stabilized finite element

J. N. Shadid; R. P. Pawlowski; J. W. Banks; L. Chacn; P. T. Lin; R. S. Tuminaro

2010-10-01T23:59:59.000Z

232

Calibration of a FE model of masonry shear panels strengthened by metal sheathing  

Science Conference Proceedings (OSTI)

In order to calibrate advanced FE Model experimental tests on masonry wall panel specimens in shear as well as on some panels strengthened by ductile steel are used. Application of finite element material models to simulate the behavior of masonry is ... Keywords: FE model, innovative retrofitting techniques, masonry shear panels, material models

A. Dogariu; F. Campitiello

2010-04-01T23:59:59.000Z

233

Neural network based controller for Cr6+-Fe2+ batch reduction process  

Science Conference Proceedings (OSTI)

An automated pilot plant has been designed and commissioned to carry out online/real-time data acquisition and control for the Cr^6^+-Fe^2^+ reduction process. Simulated data from the Cr^6^+-Fe^2^+ model derived are validated with online data and laboratory ... Keywords: Batch system, Neural Networks, ORP, Redox process

Chew Chun Ming; M. A. Hussain; M. K. Aroua

2011-11-01T23:59:59.000Z

234

Large pyramid shaped single crystals of BiFeO{sub 3} by solvothermal synthesis method  

SciTech Connect

Synthesis parameters are optimized in order to grow single crystals of multiferroic BiFeO{sub 3}. 2 to 3 mm size pyramid (tetrahedron) shaped single crystals were successfully obtained by solvothermal method. Scanning electron microscopy with EDAX confirmed the phase formation. Raman scattering spectra of bulk BiFeO3 single crystals have been measured which match well with reported spectra.

Sornadurai, D.; Ravindran, T. R.; Paul, V. Thomas; Sastry, V. Sankara [Condensed Matter Physics Division, Materials Science Group, Physical Metallurgy Division, Metallurgy and Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu (India); Condensed Matter Physics Division, Materials Science Group (India)

2012-06-05T23:59:59.000Z

235

Carbon-Supported bimetallic Pd-Fe catalysts for vapor-phase hydrodeoxygenation of guaiacol  

Science Conference Proceedings (OSTI)

Abstract Carbon supported metal catalysts (Cu/C, Fe/C, Pd/C, Pt/C, PdFe/C and Ru/C) have been prepared, characterized and tested for vapor-phase hydrodeoxygenation (HDO) of guaiacol (GUA) at atmospheric pressure. Phenol was the major intermediate on all catalysts. Over the noble metal catalysts saturation of the aromatic ring was the major pathway observed at low temperature (250 C), forming predominantly cyclohexanone and cyclohexanol. Substantial ring opening reaction was observed on Pt/C and Ru/C at higher reaction temperatures (e.g., 350 C). Base metal catalysts, especially Fe/C, were found to exhibit high HDO activity without ring-saturation or ring-opening with the main products being benzene, phenol along with small amounts of cresol, toluene and trimethylbenzene (TMB). A substantial enhancement in HDO activity was observed on the PdFe/C catalysts. Compared with Fe/C, the yield to oxygen-free aromatic products (i.e., benzene/toluene/TMB) on PdFe/C increased by a factor of four at 350 C, and by approximately a factor of two (83.2% versus 43.3%) at 450 C. The enhanced activity of PdFe/C is attributed to the formation of PdFe alloy as evidenced by STEM, EDS and TPR.

Sun, Junming; Karim, Ayman M.; Zhang, He; Kovarik, Libor; Li, Xiaohong S.; Hensley, Alyssa; McEwen, Jean-Sabin; Wang, Yong

2013-10-01T23:59:59.000Z

236

STORAGE RING CROSS-SECTION MEASUREMENTS FOR ELECTRON IMPACT SINGLE AND DOUBLE IONIZATION OF Fe{sup 9+} AND SINGLE IONIZATION OF Fe{sup 10+}  

SciTech Connect

We have measured electron impact ionization from the ground state of Fe{sup 9+} and Fe{sup 10+} over the relative electron-ion collision energy ranges 200-1900 eV and 250-1800 eV, respectively. The ions were confined in an ion storage ring long enough for essentially all metastable levels to radiatively relax to the ground state. For single ionization, we find a number of discrepancies between the existing theoretical cross sections and our results. The calculations appear to neglect some excitation-autoionization (EA) channels, particularly from n = 3 to n' excitations, which are important near threshold, and those from n = 2 {yields} 3 excitations, which contribute at about 650 eV. Conversely, at higher energies the calculations appear to overestimate the importance of EA channels due to excitation into levels where n {>=} 4. The resulting experimental rate coefficients agree with the most recent theory for Fe{sup 9+} to within 16% and for Fe{sup 10+} to within 19% at temperatures where these ions are predicted to form in collisional ionization equilibrium. We have also measured double ionization of Fe{sup 9+} forming Fe{sup 11+} in the energy range 450-3000 eV and found that although there is an appreciable cross section for direct double ionization, the dominant mechanism appears to be through direct ionization of an inner shell electron producing an excited state that subsequently stabilizes through autoionization.

Hahn, M.; Novotny, O.; Savin, D. W. [Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027 (United States); Becker, A.; Grieser, M.; Krantz, C.; Wolf, A. [Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany); Lestinsky, M.; Repnow, R. [GSI Helmholtzzentrum fuer Schwerionenforschung, Planckstr. 1, D-64291 Darmstadt (Germany); Mueller, A.; Schippers, S.; Spruck, K. [Institut fuer Atom- und Molekuelphysik, Justus-Liebig-Universitaet Giessen, Leihgesterner Weg 217, D-35392 Giessen (Germany)

2012-11-20T23:59:59.000Z

237

Vast Energy Resource in Residual Oil Zones, FE Study Says | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Vast Energy Resource in Residual Oil Zones, FE Study Says Vast Energy Resource in Residual Oil Zones, FE Study Says Vast Energy Resource in Residual Oil Zones, FE Study Says July 20, 2012 - 1:00pm Addthis Washington, DC - Billions of barrels of oil that could increase domestic supply, help reduce imports, and increase U.S. energy security may be potentially recoverable from residual oil zones, according to initial findings from a study supported by the U.S. Department of Energy's Office of Fossil Energy (FE). The recently completed study, conducted by researchers at the University of Texas-Permian Basin (UTPB), is one of several FE-supported research projects providing insight that will help tap this valuable-but-overlooked resource. Residual oil zones, called ROZs, are areas of immobile oil found below the oil-water contact of a reservoir. ROZs are similar to reservoirs in the

238

Dominion Cove Point LNG, LP - FE Dkt. No 11-128-LNG | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Dominion Cove Point LNG, LP - FE Dkt. No 11-128-LNG Dominion Cove Point LNG, LP - FE Dkt. No 11-128-LNG Dominion Cove Point LNG, LP - FE Dkt. No 11-128-LNG ORDER CONDITIONALLY GRANTING LONG-TERM MULTI-CONTRACT AUTHORIZATION TO EXPORT LIQUEFIED NATURAL GAS BY VESSEL FROM THE COVE POINT LNG TERMINAL TO NON-FREE TRADE AGREEMENT NATIONS Based on a review of the complete record and for the reasons set forth below, DOE/FE has concluded that the opponents of the DCP Application have not demonstrated that the requested authorization will be inconsistent with the public interest and finds that the exports proposed in this Application are likely to yield net economic benefits to the United States. DOE/FE further finds that DCP's proposed exports on behalf of other entities should be conditionally authorized at a volumetric rate not to exceed the

239

Comments of the Northeast Power Coordinating Council FE Docket No. 99-1 |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the Northeast Power Coordinating Council FE Docket No. the Northeast Power Coordinating Council FE Docket No. 99-1 Comments of the Northeast Power Coordinating Council FE Docket No. 99-1 On July 21, 1999 the Department of Energy, hereinafter "DOE" or the "Department" issued its Notice of Proposed Amendment to the Predidential Permits and Export Authorizations and Delegation and Assignment to the Federal Energy Regulatory Commission. Comments of the Northeast Power Coordinating Council FE Docket No. 99-1 More Documents & Publications Joint comments of consumers energy company and the detriot edison company on notice of proposed amendment. FE Docket No. 99-1 Motion to Intervene and Comments of Public Utility District No. 1 (Pend Oreille County, Washington) on PP 99-1 Notice of Intent to Amend

240

EA-1188: Chevron U.S.A., Inc. and Santa Fe Energy Resources, Inc. Midway  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

188: Chevron U.S.A., Inc. and Santa Fe Energy Resources, Inc. 188: Chevron U.S.A., Inc. and Santa Fe Energy Resources, Inc. Midway Valley 3D Seismic Project, Kern County, California EA-1188: Chevron U.S.A., Inc. and Santa Fe Energy Resources, Inc. Midway Valley 3D Seismic Project, Kern County, California SUMMARY This EA evaluates the environmental impacts for the proposed Midway Valley 3D Geophysical Exploration Project. Chevron U.S.A., Inc. and Santa Fe Energy Resources are proposing to conduct seismic investigations just southeast of the City of McKittrick and Derby Acres in the Buena Vista and Midway Valleys, Kern County, California. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD January 13, 1999 EA-1188: Finding of No Significant Impact Chevron U.S.A., Inc. and Santa Fe Energy Resources, Inc. Midway Valley 3D

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241

Ontario Power Generation Motion to Intervene & Comments in FE Docket No.  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ontario Power Generation Motion to Intervene & Comments in FE Ontario Power Generation Motion to Intervene & Comments in FE Docket No. 99-1 Ontario Power Generation Motion to Intervene & Comments in FE Docket No. 99-1 Ontario Power Generation hereby moves to intervene in, and comments on, the DOE's proposed open access requirements for International Electric Transmission Facilities. Ontario Power Company Motion to Intervene & Comments in FE Docket No. 99-1 More Documents & Publications Motion to Intervene and Comments of Public Utility District No. 1 (Pend Oreille County, Washington) on PP 99-1 Notice of Intent to Amend Presidential Permit Motion to intervene and comments of the energy services group of Hydro-Quebec and H.Q. Energy Services (U.S.) Inc, on FE 99-1 Joint Motion to Intervene of Northern States Power Company (Minnesota) et

242

FePt-based exchange-coupled composite perpendicular recording media.  

Science Conference Proceedings (OSTI)

In order to demonstrate the strong and proper exchange coupling between bottom magnetic layer and capping magnetic layer in FePt-based exchange-coupled composite (ECC) perpendicular recording media, we have investigated the thermal stability, writability, degree of exchange coupling, and ECC gain factor of FePt-based ECC media as a function of the thickness of the capping FePt layer. With increasing the thickness of capping FePt layer, both thermal stability and media writability increase simultaneously as a result of the change from strong exchange coupling to proper exchange coupling. The proper exchange-coupled FePt ECC is a promising candidate for future high-density perpendicular recording.

Sun, C.; Stafford, D.; Acharya, R.; X-Ray Science Division; Western Digital Media

2010-06-01T23:59:59.000Z

243

Search for supernova {sup 60}Fe in the Earth's microfossil record  

Science Conference Proceedings (OSTI)

Approximately 2.8 Myr before the present our planet was subjected to the debris of a supernova explosion. The terrestrial proxy for this event was the discovery of live atoms of {sup 60}Fe in a deep-sea ferromanganese crust. The signature for this supernova event should also reside in magnetite (Fe{sub 3}O{sub 4}) microfossils produced by magnetotactic bacteria extant at the time of the Earth-supernova interaction, provided the bacteria preferentially uptake iron from fine-grained iron oxides and ferric hydroxides. Using empirically derived microfossil concentrations in a deep-sea drill core, we deduce a conservative estimate of the {sup 60}Fe fraction as {sup 60}Fe/Fe Almost-Equal-To 3.6 Multiplication-Sign 10{sup -15}. This value sits comfortably within the sensitivity limit of present accelerator mass spectrometry capabilities.

Bishop, S.; Ludwig, P.; Egli, R.; Faestermann, T.; Korschinek, G.; Rugel, G. [Technische Universitaet Muenchen, James Franck Str. 1, D-85748 Garching (Germany); Department of Earth and Environmental Sciences, Ludwig-Maximilians University, Theresienstrasse 41 80333 Munich (Germany); Technische Universitaet Muenchen, James Franck Str. 1, D-85748 Garching (Germany); Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstra. 400, D-01328 Dresden (Germany)

2012-11-12T23:59:59.000Z

244

Synthesis of LiFePO{sub 4} with fine particle by co-precipitation method  

SciTech Connect

LiFePO{sub 4} is a potential candidate for the cathode material of the lithium secondary batteries. A co-precipitation method was adopted to prepare LiFePO{sub 4} because it is simple and cheap. Nitrogen gas was needed to prevent oxidation of Fe{sup 2+} in the aqueous solution. The co-precipitated precursor shows the high reactivity with the reductive gas, and the single phase of LiFePO{sub 4} is successfully synthesized with the aid of carbon under less reductive conditions. LiFePO{sub 4} fine powder prepared by co-precipitation method shows high rate capability, impressive specific capacity and cycle property.

Park, K.S. [Texas Materials Institute, University of Texas at Austin, Austin, TX 78712 (United States)]. E-mail: gappa37@dreamwiz.com; Kang, K.T. [Department of Materials Science and Engineering, KAIST, Daejeon 305-701 (Korea, Republic of); Lee, S.B. [Department of Materials Science and Engineering, KAIST, Daejeon 305-701 (Korea, Republic of); Kim, G.Y. [Department of Materials Science and Engineering, KAIST, Daejeon 305-701 (Korea, Republic of); Park, Y.J. [Battery Technology Team, ETRI, Daejon 305-350 (Korea, Republic of); Kim, H.G. [Department of Materials Science and Engineering, KAIST, Daejeon 305-701 (Korea, Republic of)

2004-10-04T23:59:59.000Z

245

The FE-I4 Pixel Readout Chip and the IBL Module  

SciTech Connect

FE-I4 is the new ATLAS pixel readout chip for the upgraded ATLAS pixel detector. Designed in a CMOS 130 nm feature size process, the IC is able to withstand higher radiation levels compared to the present generation of ATLAS pixel Front-End FE-I3, and can also cope with higher hit rate. It is thus suitable for intermediate radii pixel detector layers in the High Luminosity LHC environment, but also for the inserted layer at 3.3 cm known as the 'Insertable B-Layer' project (IBL), at a shorter timescale. In this paper, an introduction to the FE-I4 will be given, focusing on test results from the first full size FE-I4A prototype which has been available since fall 2010. The IBL project will be introduced, with particular emphasis on the FE-I4-based module concept.

Barbero, Marlon; Arutinov, David; Backhaus, Malte; Fang, Xiao-Chao; Gonella, Laura; Hemperek, Tomasz; Karagounis, Michael; Hans, Kruger; Kruth, Andre; Wermes, Norbert; /Bonn U.; Breugnon, Patrick; Fougeron, Denis; Gensolen, Fabrice; Menouni, Mohsine; Rozanov, Alexander; /Marseille, CPPM; Beccherle, Roberto; Darbo, Giovanni; /INFN, Genoa; Caminada, Lea; Dube, Sourabh; Fleury, Julien; Gnani, Dario; /LBL, Berkeley /NIKHEF, Amsterdam /Gottingen U. /SLAC

2012-05-01T23:59:59.000Z

246

Recycling of LiFePO4 Batteries  

NLE Websites -- All DOE Office Websites (Extended Search)

8-11, 2011 8-11, 2011 Linda Gaines Center for Transportation Research Argonne National Laboratory Recycling of LiFePO 4 Batteries 7th International Symposium on Inorganic Phosphate Materials Phosphate Materials for Energy Storage We don't want to trade one crisis for another!  Battery material shortages are unlikely - We demonstrated that lithium demand can be met - Recycling mitigates potential scarcity  Life-cycle analysis checks for unforeseen impacts  We need to find something to do with the used materials - Safe - Economical 2 Battery materials could get used multiple times Initial Use Automotive power Secondary Use Utility storage Residential storage Power at remote location Refurbishment Rejuvenate (change electrolyte) Switch out bad module

247

Comparison of LiFePO4 from different sources  

DOE Green Energy (OSTI)

The lithium iron phosphate chemistry is plagued by the poor conductivity and slow diffusion in the solid phase. In order to alleviate these problems, various research groups have adopted different strategies including decreasing the particle sizes, increasing the carbon content, and adding dopants. In this study, we obtained LiFePO{sub 4} powders and/or electrodes from six different sources and used a combined model-experimental approach to compare the performance. Samples ranged from 0.4% to 15% ''in-situ'' carbon. In addition, particle sizes varied by as much as an order of magnitude between samples. The study detailed in this manuscript allows us to provide insight into the relative importance of the conductivity of the samples compared to the particle size, the impact of having a distribution in particle sizes, and ideas for making materials in order to maximize the power capability of this chemistry.

Striebel, Kathryn; Shim, Joongpyo; Srinivasan, Venkat; Newman, John

2004-06-21T23:59:59.000Z

248

Comparison of LiFePO4 from different sources  

DOE Green Energy (OSTI)

The lithium iron phosphate chemistry is plagued by the poor conductivity and slow lithium diffusion in the solid phase. In order to alleviate these problems, various research groups have adopted different strategies including decreasing the particle sizes, increasing the carbon content, and adding dopants. In this study we obtained LiFePO4 electrodes from six different sources and used a combined model-experimental approach to compare the performance. Samples ranged from one with no carbon coating to one with 15 percent coating. In addition, particle sizes varied by as much as a order of magnitude between samples. The study detailed in this manuscript allows us to provide insight into the relative importance of the conductivity of the samples compared to the particle size, the impact of dopant on performance and ideas for making materials in order to maximize the power capability of this chemistry.

Striebel, Kathryn; Shim, Joongpyo; Srinivasan, Venkat; Newman, John

2003-11-25T23:59:59.000Z

249

FE Press Releases and Techlines | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

July 9, 2013 July 9, 2013 NETL Innovations Recognized with R&D 100 Awards Two technologies advanced by the FE's National Energy Technology Laboratory in collaboration with strategic partners have been recognized by R&D Magazine as among the 100 most technologically significant products introduced into the commercial marketplace within the past year. June 17, 2013 An innovative airfoil manufacturing technology that promises to improve the performance of state-of-the-art gas turbines has been commercialized through research sponsored by the U.S. Department of Energy. Photo courtesy of Mikro Systems, Inc. DOE-Sponsored Research Improves Gas Turbine Performance Small Business Innovative Research Grants Achieve Commercialization Goals for Novel Gas Turbine Manufacturing Technology

250

FE Oil and Natural Gas News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oil and Natural Gas News Oil and Natural Gas News FE Oil and Natural Gas News RSS November 15, 2013 Energy Department Authorizes Additional Volume at Proposed Freeport LNG Facility to Export Liquefied Natural Gas The Department of Energy announced the conditional authorization for Freeport LNG Expansion, L.P. and FLNG Liquefaction, LLC to export liquefied natural gas to countries that do not have a Free Trade Agreement with the U.S. This is the fifth conditional authorization the Department has announced. August 23, 2013 DOE and the Bureau of Safety and Environmental Enforcement Sign Memorandum of Collaboration for Safe Offshore Energy Development The Department of Energy's (DOE) Office of Fossil Energy and The Bureau of Safety and Environmental Enforcement (BSEE) signed a Memorandum of

251

Microsoft Word - FE PSRP 08-19-09 _3_.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PSRP Name: Fossil Energy Research & Development (R&D) PSRP Name: Fossil Energy Research & Development (R&D) PSRP Lead Program Office and/or Laboratory/Site Office: Office of Fossil Energy (FE)/National Energy Technology Laboratory (NETL) PSRP Lead Manager: Victor K. Der Phone: (202) 586-6660 E-mail: victor.der@hq.doe.gov Address: 1000 Independence Avenue, SW; Washington DC 20585 Does this program align with an existing PART program? Y Does this program align with an existing CFDA program? N 1. Objectives Program Purpose The American Recovery and Reinvestment Act of 2009 (ARRA, or Recovery Act) provides an additional $3,400,000,000 for Fossil Energy Research and Development to develop and demonstrate CCS technology, in partnership with industry, and to transition this technology to

252

FE Carbon Capture and Storage News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Carbon Capture and Storage News Carbon Capture and Storage News FE Carbon Capture and Storage News RSS November 7, 2013 Energy Department Invests to Drive Down Costs of Carbon Capture, Support Reductions in Greenhouse Gas Pollution 18 Innovative Carbon Capture Projects Will Help Make Fossil Energy Use Cleaner, Safer and More Sustainable as Part of the Obama Administration's Climate Action Plan August 15, 2013 Historically Black Colleges and Universities Receive Funds for Fossil Energy Research Five fossil energy-related projects that will help maintain the nation's energy portfolio while also providing educational and research training opportunities for tomorrow's scientists and engineers have been selected for funding by the U.S. Department of Energy (DOE). August 14, 2013 DOE Selects Ten Projects to Conduct Advanced Turbine Technology Research

253

FE Carbon Capture and Storage News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Carbon Capture and Storage News Carbon Capture and Storage News FE Carbon Capture and Storage News RSS June 9, 2010 Award-Winning DOE Technology Scores Success in Carbon Storage Project The ability to detect and track the movement of carbon dioxide in underground geologic storage reservoirs -- an important component of carbon capture and storage technology -- has been successfully demonstrated at a U.S. Department of Energy New Mexico test site. April 20, 2010 Research Experience in Carbon Sequestration 2010 Now Accepting Applications Students and early career professionals can gain hands-on experience in areas related to carbon capture and storage by participating in the Research Experience in Carbon Sequestration program. March 15, 2010 Illinois CO2 Injection Project Moves Another Step Forward

254

Vacancy-driven anisotropic defect distribution in the battery-cathode material LiFePO4  

Science Conference Proceedings (OSTI)

Li-ion mobility in LiFePO{sub 4}, a key property for energy applications, is impeded by Fe antisite defects (Fe{sub Li}) that form in select b-axis channels. Here we combine first-principles calculations, statistical mechanics, and scanning transmission electron microscopy to identify the origin of the effect: Li vacancies (V{sub Li}) are confined in one-dimensional b-axis channels, shuttling between neighboring Fe{sub Li}. Segregation in select channels results in shorter Fe{sub Li}-Fe{sub Li} spans, whereby the energy is lowered by the V{sub Li}'s spending more time bound to end-point Fe{sub Li}'s. V{sub Li}-Fe{sub Li}-V{sub Li} complexes also form, accounting for observed electron energy loss spectroscopy features.

Lee, Jaekwang [Vanderbilt University; Zhou, Wu [Vanderbilt University; Idrobo Tapia, Juan C [ORNL; Pennycook, Stephen J [ORNL; Pantelides, Sokrates T. [Vanderbilt University; Biegalski, Michael D [ORNL

2011-01-01T23:59:59.000Z

255

Development of FeNiMoB thin film materials for microfabricated magnetoelastic sensors  

Science Conference Proceedings (OSTI)

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

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

2012-12-01T23:59:59.000Z

256

Synthesis and magnetic properties of the double layer perovskite CeBaFe2O5+w  

E-Print Network (OSTI)

Synthesis and magnetic properties of the double layer perovskite CeBaFe2O5+w R. L. de Almeida,1 O The synthesis, crystallographic structure, and magnetic properties of polycrystalline single-phase samples of CeBaFe results on the successful prepara- tion and characterization of polycrystalline CeBaFe2O5+w samples. Ideal

de Lima, Oscar Ferreira

257

Evolutionary Significance of an Algal Gene Encoding an [FeFe]-Hydrogenase with F-Domain Homology and Hydrogenase Activity in Chlorella Variabilis NC64A  

SciTech Connect

[FeFe]-hydrogenases (HYDA) link the production of molecular H{sub 2} to anaerobic metabolism in many green algae. Similar to Chlamydomonas reinhardtii, Chlorella variabilis NC64A (Trebouxiophyceae, Chlorophyta) exhibits [FeFe]-hydrogenase (HYDA) activity during anoxia. In contrast to C. reinhardtii and other chlorophycean algae, which contain hydrogenases with only the HYDA active site (H-cluster), C. variabilis NC64A is the only known green alga containing HYDA genes encoding accessory FeS cluster-binding domains (F-cluster). cDNA sequencing confirmed the presence of F-cluster HYDA1 mRNA transcripts, and identified deviations from the in silico splicing models. We show that HYDA activity in C. variabilis NC64A is coupled to anoxic photosynthetic electron transport (PSII linked, as well as PSII-independent) and dark fermentation. We also show that the in vivo H{sub 2}-photoproduction activity observed is as O2 sensitive as in C. reinhardtii. The two C. variabilis NC64A HYDA sequences are similar to homologs found in more deeply branching bacteria (Thermotogales), diatoms, and heterotrophic flagellates, suggesting that an F-cluster HYDA is the ancestral enzyme in algae. Phylogenetic analysis indicates that the algal HYDA H-cluster domains are monophyletic, suggesting that they share a common origin, and evolved from a single ancestral F-cluster HYDA. Furthermore, phylogenetic reconstruction indicates that the multiple algal HYDA paralogs are the result of gene duplication events that occurred independently within each algal lineage. Collectively, comparative genomic, physiological, and phylogenetic analyses of the C. variabilis NC64A hydrogenase has provided new insights into the molecular evolution and diversity of algal [FeFe]-hydrogenases.

Meuser, J. E.; Boyd, E. S.; Ananyev, G.; Karns, D.; Radakovits, R.; Murthy, U. M. N.; Ghirardi, M. L.; Dismukes, G. C.; Peters, J. W.; Posewitz, M. C.

2011-10-01T23:59:59.000Z

258

Force Field Development and Molecular Dynamics of [NiFe] Hydrogenase  

Science Conference Proceedings (OSTI)

Classical molecular force-field parameters describing the structure and motion of metal clusters in [NiFe] hydrogenase enzymes can be used to compare the dynamics and thermodynamics of [NiFe] under different oxidation, protonation, and ligation circumstances. Using density functional theory (DFT) calculations of small model clusters representative of the active site and the proximal, medial, and distal Fe/S metal centers and their attached protein side chains, we have calculated classical force-field parameters for [NiFe] in reduced and oxidized states, including internal coordinates, force constants, and atom-centered charges. Derived force constants revealed that cysteinate ligands bound to the metal ions are more flexible in the Ni-B active site, which has a bridging hydroxide ligand, than in the Ni-C active site, which has a bridging hydride. Ten nanosecond all-atom, explicit-solvent MD simulations of [NiFe] hydrogenase in oxidized and reduced catalytic states established the stability of the derived force-field parameters in terms of C{alpha} and metal cluster fluctuations. Average active site structures from the protein MD simulations are consistent with [NiFe] structures from the Protein Data Bank, suggesting that the derived force-field parameters are transferrable to other hydrogenases beyond the structure used for testing. A comparison of experimental H{sub 2}-production rates demonstrated a relationship between cysteinate side chain rotation and activity, justifying the use of a fully dynamic model of [NiFe] metal cluster motion.

Smith, Dayle MA; Xiong, Yijia; Straatsma, TP; Rosso, Kevin M.; Squier, Thomas C.

2012-05-09T23:59:59.000Z

259

F.E. Warren Air Force Base Wind Farm | Open Energy Information  

Open Energy Info (EERE)

F.E. Warren Air Force Base Wind Farm F.E. Warren Air Force Base Wind Farm Jump to: navigation, search Name F.E. Warren Air Force Base Wind Farm Facility F.E. Warren Air Force Base Sector Wind energy Facility Type Community Wind Facility Status In Service Owner F.E. Warren Air Force Base Developer F.E. Warren Air Force Base Energy Purchaser F.E. Warren Air Force Base Location Near Cheyenne WY Coordinates 41.175569°, -104.880778° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.175569,"lon":-104.880778,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

260

Crystal structures of mixed-conducting oxides present in the Sr-Fe-Co-O system.  

DOE Green Energy (OSTI)

The potential applications of mixed-conducting ceramic oxides include solid-oxide fuel cells, rechargeable batteries, gas sensors and oxygen-permeable membranes. Several perovskite-derived mixed Sr-Fe-Co oxides show not only high electrical-conductivity but also appreciable oxygen-permeability at elevated temperatures. For example, dense ceramic membranes of SrFeCo{sub 0.5}O{sub 3{minus}{delta}} can be used to separate oxygen from air without the need for external electrical circuitry. The separated oxygen can be directly used for the partial oxidation of methane to produce syngas. Quantitative phase analysis of the SrFeCo{sub 0.5}O{sub 3{minus}{delta}} material has revealed that it is predominantly composed of two Sr-Fe-Co-O systems, Sr{sub 4}Fe{sub 6{minus}x}Co{sub x}O{sub 13} and SrFe{sub 1{minus}x}Co{sub x}O{sub 3{minus}{delta}}. Here we report preliminary structural findings on the SrFe{sub 1{minus}x}Co{sub x}O{sub 3{minus}{delta}} (0 {le} x {le} 0.3) system.

Hodges, J. P.; Jorgensen, J. D.; Miler, D. J.; Ma, B.; Balachandran, U.; Richardson, J. W., Jr.

1998-01-14T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
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261

Interaction of H2S with alpha-Fe2O3(0001) Surface  

SciTech Connect

The atomic-scale structural changes in an {alpha}-Fe2O3 (hematite) (0 0 0 1) surface induced by sulfidation and subsequent oxidation processes were studied by X-ray photoemission spectroscopy, LEED, and X-ray standing wave (XSW) measurements. Annealing the {alpha}-Fe2O3(0 0 0 1) with a H2S partial pressure of 1 x 10-7 Torr produced iron sulfides on the surface as the sulfur atoms reacted with the substrate Fe ions. The oxidation state of the substrate Fe changed from 3+ to 2+ as a result of the sulfidation. The XSW measured distance of the sulfur atomic-layer from the unrelaxed substrate oxygen layer was 3.16 Angstroms. The sulfide phase consisted of three surface domains identified by LEED. Formation of the two-dimensional FeS2 phase with structural parameters consistent with an outermost layer of (1 1 1) pyrite has been proposed. Atomic oxygen exposure oxidized the surface sulfide to a sulfate (SO{sup 2-}{sub 4}) and regenerated the {alpha}-Fe2O3(0 0 0 1) substrate, which was indicated by a (1 x 1) LEED pattern and the re-oxidization of Fe to 3+.

Kim,C.; Escuadro, A.; Bedzyk, M.

2007-01-01T23:59:59.000Z

262

Electrochemical performance of Sol-Gel synthesized LiFePO{sub 4} in lithium batteries  

DOE Green Energy (OSTI)

LiFePO{sub 4}, Li{sub 0.98}Mg{sub 0.01}FePO{sub 4}, and Li{sub 0.96}Ti{sub 0.01}FePO{sub 4} were synthesized via a sol-gel method, using a variety of processing conditions. For comparison, LiFePO{sub 4} was also synthesized from iron acetate by a solid state method. The electrochemical performance of these materials in lithium cells was evaluated and correlated to mean primary particle size and residual carbon structure in the LiFePO{sub 4} samples, as determined by Raman microprobe spectroscopy. For materials with mean agglomerate sizes below 20 {micro}m, an association between structure and crystallinity of the residual carbon and improved utilization was observed. Addition of small amounts of organic compounds or polymers during processing results in carbon coatings with higher graphitization ratios and better electronic properties on the LiFePO{sub 4} samples and improves cell performance in some cases, even though total carbon contents remain very low (<2%). In contrast, no performance enhancement was seen for samples doped with Mg or Ti. These results suggest that it should be possible to design high power LiFePO{sub 4} electrodes without unduly compromising energy density by optimizing the carbon coating on the particles.

Hu, Yaoqin; Doeff, Marca M.; Kostecki, Robert; Finones, Rita

2003-06-16T23:59:59.000Z

263

Heterogeneous Reduction of U6+ by Structural Fe2+ From Theory and Experiment  

SciTech Connect

Computational and experimental studies were performed to explore heterogeneous reduction of U6+ by structural Fe2+ at magnetite (Fe3O4) surfaces. Molecular Fe-Fe-U models representing a uranyl species adsorbed in a biatomic bidentate fashion to an iron surface group were constructed. Various possible charge distributions in this model surface complex were evaluated in terms of their relative stabilities and electron exchange rates using ab initio molecular orbital methods. Freshly-cleaved, single crystals of magnetite with different initial Fe2+/Fe3+ ratios were exposed to uranyl-nitrate solution (pH ~ 4) for 90 hours. X ray photoelectron spectroscopy and electron microscopy indicated the presence of a mixed U6+/U5+ precipitate heterogeneously nucleated and grown on stoichiometric magnetite surfaces, but only the presence of sorbed U6+ and no precipitate on sub-stoichiometric magnetite surfaces. Calculated electron transfer rates indicate that sequential multi-electron uranium reduction is not kinetically limited by conductive electron resupply to the adsorption site. Both theory and experiment point to local structural Fe2+ density and sterically accessible uranium coordination environments as key controls on uranium reduction extent and rate. Uranium incorporation in solid phases where its coordination is constrained to the 6-fold uranate type should widen the stability field of U5+ relative to U6+. If uranium cannot acquire 8 fold coordination then reduction may proceed to U5+ but not necessarily U4+.

Skomurski, Frances N.; Ilton, Eugene S.; Engelhard, Mark H.; Arey, Bruce W.; Rosso, Kevin M.

2011-11-15T23:59:59.000Z

264

Magnetic ordering in tetragonal FeS: Evidence for strong itinerant spin fluctuations  

DOE Green Energy (OSTI)

Mackinawite is a naturally occurring layer-type FeS mineral important in biogeochemical cycles and, more recently, in the development of microbial fuel cells. Conflicting results have been published as to the magnetic properties of this mineral, with Moessbauer spectroscopy indicating no magnetic ordering down to 4.2 K but density functional theory (DFT) predicting an antiferromagnetic ground state, similar to the Fe-based high-temperature superconductors with which it is isostructural and for which it is known that magnetism is suppressed by strong itinerant spin fluctuations. We investigated this latter possibility for mackinawite using photoemission spectroscopy, near-edge x-ray absorption fine structure spectroscopy, and DFT computations. Our Fe 3{sub s} core-level photoemission spectrum of mackinawite showed a clear exchange-energy splitting (2.9 eV) consistent with a 1 {micro}{sub B} magnetic moment on the Fe ions, while the Fe L-edge x-ray absorption spectrum indicated rather delocalized Fe 3{sub d} electrons in mackinawite similar to those in Fe metal. Our DFT computations demonstrated that the ground state of mackinawite is single-stripe antiferromagnetic, with an Fe magnetic moment (2.7 {micro}{sub B}) that is significantly larger than the experimental estimate and has a strong dependence on the S height and lattice parameters. All of these trends signal the existence of strong itinerant spin fluctuations. If spin fluctuations prove to be mediators of electron pairing, we conjecture that mackinawite may be one of the simplest Fe-based superconductors.

Kwon, K.D.; Refson, K.; Bone, S.; Qiao, R.; Yang, W.; Liu, Z.; Sposito, G.

2010-11-01T23:59:59.000Z

265

NdBaFe{sub 2}O{sub 5+w} and steric effect of Nd on valence mixing and ordering of Fe  

Science Conference Proceedings (OSTI)

NdBaFe{sub 2}O{sub 5} above and below Verwey transition is studied by synchrotron X-ray powder diffraction and Moessbauer spectroscopy and compared with GdBaFe{sub 2}O{sub 5} that adopts a higher-symmetry charge-ordered structure typical of the Sm-Ho variants of the title phase. Differences are investigated by Moessbauer spectroscopy accounting for iron valence states at their local magnetic and ionic environments. In the charge-ordered state, the orientation of the electric-field gradient (EFG) versus the internal magnetic field (B) agrees with experiment only when contribution from charges of the ordered d{sub xz} orbitals of Fe{sup 2+} is included, proving thus the orbital ordering. The EFG magnitude indicates that only some 60% of the orbital order occurring in the Sm-Ho variants is achieved in NdBaFe{sub 2}O{sub 5}. The consequent diminishing of the orbit contribution (of opposite sign) to the field B at the Fe{sup 2+} nucleus explains why B is larger than for the Sm-Ho variants. The decreased orbital ordering in NdBaFe{sub 2}O{sub 5} causes a corresponding decrease in charge ordering, which is achieved by decreasing both the amount of the charge-ordered iron states in the sample and their fractional valence separation as seen by the Moessbauer isomer shift. The charge ordering in NdBaFe{sub 2}O{sub 5+w} is more easily suppressed by the oxygen nonstoichiometry (w) than in the Sm-Ho variants. Also the valence mixing into Fe{sup 2.5+} is destabilized by the large size of Nd. The orientation of the EFG around this valence-mixed iron can only be accounted for when the valence-mixing electron is included in the electrostatic ligand field. This proves that the valence mixing occurs between the two iron atoms facing each other across the structural plane of the rare-earth atoms. -- Graphical Abstract: Moessbauer spectrum detects ordering of d{sub xz} orbitals of Fe{sup II}O{sub 5} via the electric-field gradient (EFG) of the orbital, which makes the main component of the total EFG parallel with the magnetic moment B. Display Omitted

Linden, J. [Department of Physics, AAbo Akademi, FI-20500 Turku (Finland); Karen, P., E-mail: pavel.karen@kjemi.uio.n [Department of Chemistry, University of Oslo, P.O.Box 1033, Blindern, N-0315 Oslo (Norway)

2010-11-15T23:59:59.000Z

266

Bond mobility mechanism in grain boundary embrittlement: First-principles tensile tests of Fe with a P-segregated {Sigma}3 grain boundary  

Science Conference Proceedings (OSTI)

First-principles simulated tensile tests have been performed on Fe with a P-segregated grain boundary to investigate the nature of the bond mobility mechanism in grain boundary embrittlement. The first site for bond breaking was the Fe-P bond, despite its high charge density. This is because the Fe-P bond exhibited the covalentlike characteristics of a localized bonding and the mobility of electrons was reduced. The breaking of the Fe-P bond accelerated the breaking of the Fe-Fe bond around the Fe-P bond because the Fe-P bond breaking affected the electron density of states of the Fe-Fe bond. Thus, P segregation enhanced the grain boundary embrittlement in Fe.

Yuasa, Motohiro; Mabuchi, Mamoru [Department of Energy Science and Technology, Graduate School of Energy Science, Kyoto University, Yoshidahonmachi, Sakyo-ku, Kyoto 606-8501 (Japan)

2010-09-01T23:59:59.000Z

267

Ni spin switching induced by magnetic frustration in FeMn/Ni/Cu(001)  

SciTech Connect

Epitaxially grown FeMn/Ni/Cu(001) films are investigated by Photoemission Electron Microscopy and Magneto-Optic Kerr Effect. We find that as the FeMn overlayer changes from paramagnetic to antiferromagnetic state, it could switch the ferromagnetic Ni spin direction from out-of-plane to in-plane direction of the film. This phenomenon reveals a new mechanism of creating magnetic anisotropy and is attributed to the out-of-plane spin frustration at the FeMn-Ni interface.

Wu, J.; Choi, J.; Scholl, A.; Doran, A.; Arenholz, E.; Hwang, Chanyong; Qiu, Z. Q.

2009-03-08T23:59:59.000Z

268

Magnetism and transport properties of epitaxial Fe-Ga thin films on GaAs(001)  

SciTech Connect

Epitaxial Fe-Ga thin films in disordered bcc {alpha}-Fe crystal structure (A2) have been grown on GaAs(001) by molecular beam epitaxy. The saturated magnetization (M{sub S}) decreased from 1371 to 1105 kA/m with increasing Ga concentration from 10.5 to 24.3 % at room temperature. The lattice parameter increased with the increase in Ga content because of the larger atomic radius of Ga atom than that of Fe. The increase in carrier density with Ga content caused in lower resistivity.

Duong Anh Tuan; Shin, Yooleemi; Cho, Sunglae [Department of Physics, University of Ulsan, Ulsan 680-749 (Korea, Republic of); Dang Duc Dung [Department of Physics, University of Ulsan, Ulsan 680-749 (Korea, Republic of); Department of General Physics, School of Engineering Physics, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi (Viet Nam); Vo Thanh Son [Centers for Nanobioenineering and Spintronics, Chungnam National University, Daejon 350-746 (Korea, Republic of)

2012-04-01T23:59:59.000Z

269

In situ high temperature crystallization study of sputter deposited amorphous W-Fe-C films  

Science Conference Proceedings (OSTI)

The structural behavior of amorphous W[sub 46]Fe[sub 13]C[sub 41] and W[sub 36]Fe[sub 31]C[sub 33] films produced by sputtering have been studied in situ during annealing up to [approximately] 950 C by means of hot stage transmission electron microscopy. Differential thermal analysis and X-ray diffraction were used as complementary experimental techniques. The results are presented and correlated with the equilibrium phases anticipated from the W-Fe-C ternary phase diagram and with previous studied on similar films deposited and annealed onto substrates.

Trindade, B.; Vieira, M.T. (Univ. de Coimbra (Portugal). Dept. de Engenharia Mecanica); Grosse, E.B. (National Superieure des Mines de Nancy (France). Lab. de Sciences et Genie des Surfaces)

1995-01-01T23:59:59.000Z

270

Effect of conductive additives in LiFePO4 cathode for lithium-ion batteries  

DOE Green Energy (OSTI)

The electrochemical properties of LiFePO4 cathodes with different carbon contents were studied to find out the role of carbon as conductive additive. LiFePO4 cathodes containing from 0 percent to 12 percent of conductive additive (carbon black or mixture of carbon black and graphite) were cycled at different C rates. The capacity of LiFePO4 cathode increased, as conductive additive content increased. Carbon increased the utilization of active material and the electrical conductivity of electrode, but decreased volumetric capacity of electrode.

Shim, J.; Guerfi, A.; Zaghib, K.; Striebel, K.A.

2003-11-25T23:59:59.000Z

271

Electronic structure of phospho-olivines LixFePO4 (x=0,1) fromsoft-x-ray-absorption and -emission spectroscopies  

Science Conference Proceedings (OSTI)

The electronic structure of the phospho-olivine LixFePO4 wasstudied using soft-x-ray-absorption (XAS) and emission spectroscopies.Characteristic changes in the valence and conduction bands are observedupon delithation of LiFePO4 into FePO4. In LiFePO4, the Fe-3d states arelocalized with little overlap with the O-2p states. Delithiation ofLiFePO4 gives stronger hybridization between Fe-3d states and O-2p statesleading to delocalization of the O-2p states. The Fe L-edge absorptionspectra yield "fingerprints" of the different valence states of Fe inLiFePO4 and FePO4. Resonant soft-x-ray-emission spectroscopy at the Fe Ledge shows strong contributions from resonant inelastic soft x-rayscattering (RIXS), which is described using an ionic picture of the Fe-3dstates. Together the Fe L-edge XAS and RIXS study reveals a bondingcharacter of the Fe 3d-O2p orbitals in FePO4 in contrast to a nonbondingcharacter in LiFePO4.

Augustsson, A.; Zhuang, G.V.; Butorin, S.M.; Osorio-Guillen,J.M.; Dong, C.L.; Ahuja, R.; Chang, C.L.; Ross, P.N.; Nordgren, J.; Guo,J.-H.

2005-07-17T23:59:59.000Z

272

Structure of epitaxial (Fe,N) codoped rutile TiO2 thin films by x-ray absorption  

Science Conference Proceedings (OSTI)

Homoepitaxial thin films of Fe:TiO2 and (Fe,N):TiO2 were deposited on rutile(110) by molecular beam epitaxy. X-ray absorption near edge spectroscopy (XANES) spectra were collected at the Ti L-edge, Fe L-edge, O K-edge, N K-edge, and Ti K-edge. No evidence of structural disorder associated with a high concentration of oxygen vacancies is observed. Substitution of Fe for Ti could not be confirmed, although secondary phase Fe2O3 and metallic Fe can be ruled out. The similarity of the N K-edge spectra to O, and the presence of a strong x-ray linear dichroism (XLD) signal for the N K-edge, indicates that N is substitutional for O in the rutile lattice, and is not present as a secondary phase such as TiN. Simulations of the XANES spectra qualitatively confirm substitution, although N appears to be present in more than one local environment. Neither Fe:TiO2 nor (Fe,N):TiO2 exhibit intrinsic room temperature ferromagnetism, despite the presence of mixed valence Fe(II)/Fe(III) in the reduced (Fe,N):TiO2 film.

Kaspar, Tiffany C.; Ney, A.; Mangham, Andrew N.; Heald, Steve M.; Joly, Yves; Ney, V.; Wilhelm, F.; Rogalev, A.; Yakou, Flora; Chambers, Scott A.

2012-07-23T23:59:59.000Z

273

Determination of the Fe magnetic anisotropies and the CoO frozen spins in epitaxial CoO/Fe/Ag(001)  

SciTech Connect

CoO/Fe/Ag(001) films were grown epitaxially and studied by X-ray Magnetic Circular Dichroism (XMCD) and X-ray Magnetic Linear Dichroism (XMLD). After field cooling along the Fe[100] axis to 80 K, exchange bias, uniaxial anisotropy, and 4-fold anisotropy of the films were determined by hysteresis loop and XMCD measurements by rotating the Fe magnetization within the film plane. The CoO frozen spins were determined by XMLD measurement as a function of CoO thickness.We find that among the exchange bias, uniaxial anisotropy, and 4-fold anisotropy, only the uniaxial magnetic anisotropy follows thickness dependence of the CoO frozen spins.

Meng, J. Li, Y.; Park, J. S.; Jenkins, C. A.; Arenholz, E.; Scholl, A.; Tan, A.; Son, H.; Zhao, H. W.; Hwang, Chanyong; Qiu, Z. Q.

2011-04-28T23:59:59.000Z

274

Spin-resolved photoelectron spectroscopy of Fe3O4  

SciTech Connect

The existence of a new class of magnetic materials displaying metallic character for one electron spin population and insulating character for the other was first populated by DeGroot et al. in 1983 based on theoretical band structure calculations of the ferromagnetic Heusler alloy NiMnSb. Since then such half metallic materials, which by definition possess 100% electron polarization at the Fermi energy, have attracted considerable theoretical, experimental, and technological interest as potential pure spin sources for use in spintronic devices. In addition to Heusler alloys (e.g. NiMnSb, PtMnSb), half metallic character has also been predicted to occur in a wide range of manganites (e.g. La1-xCaxMnO3, La1-x-SrxMnO3), metallic oxides (e.g. Fe3O4, CrO2) and CMR systems. However, such predictions have proven to be extremely difficult to confirm experimentally. Possible reasons for this include the theoretical limitations arising from the complex crystallographic structure of many such materials and limitations in applying the single electron picture to materials where strong electron correlation may be present; this is compounded by experimental difficulties posed by their structural complexity and issues such as surface contamination, segregation, and reconstruction.

Morton, Simon; Waddill, Dan; Kim, S H.; Schuller, I K.; Chambers, Scott A.; Tobin, James G.

2002-08-01T23:59:59.000Z

275

The hydrogen embrittlement of Ni-Cr-Fe alloys  

Science Conference Proceedings (OSTI)

It has been proposed that the stress corrosion cracking (SCC) of nickel-based alloys in low-temperature hydrogenated water is due to hydrogen embrittlement. The purpose of this work was to investigate the role of chromium on hydrogen embrittlement of Ni-Cr-Fe alloys and thus develop a better understanding of the low-temperature SCC phenomenon. The effect of chromium on the hydrogen embrittlement was examined using tensile tests followed by material evaluation via scanning electron microscopy and light optical microscopy. Four alloys were prepared with chromium contents ranging from 6 wt. percent to 35 wt. percent. In the noncharged condition, ductility, as measured by the percent elongation or reduction in area, increased as the alloy chromium content increased. Hydrogen appeared to have only minor effects on the mechanical properties of the low chromium alloys. The addition of hydrogen had a marked effect on the ductility of the higher chromium alloys. In the 26% chromium alloy, the elongation to failure was reduced from 53% to 14% with a change in fracture mode from ductile dimple to intergranular failure. A maximum in embrittlement was observed in the 26% Cr alloy. The maximum in embrittlement coincided with the minimum in stacking-fault energy. It is proposed that the increased hydrogen embrittlement in the high-chromium alloys is due to increased slip planarity caused by the low stacking-fault energy. Slip planarity did not appear to affect the fracture of the noncharged specimens.

Symons, D.M.

1996-12-31T23:59:59.000Z

276

Stellar pollution and [Fe/H] in the Hyades  

E-Print Network (OSTI)

The Hyades open cluster presents a unique laboratory for planet formation and stellar pollution studies because all of the stars have essentially the same age and were born from the same cloud of gas. Furthermore, with an age of roughly 650 Myr most of the intermediate and low mass stars are on the main sequence. Given these assumptions, the accretion of metal rich material onto the surface of a star during and shortly after the formation of planetary systems should be evident via the enhanced metallicity of the star. Building on previous work, stellar evolution models which include the effects of stellar pollution are applied to the Hyades. The results of several Monte Carlo simulations, in which the amount of accreted material is drawn at random from a Gaussian distribution with standard deviation equal to half the mean, are presented. An effective temperature-[Fe/H] relation is produced and compared to recent observations. The theoretical predictions presented in this letter will be useful in future searches for evidence of stellar pollution due to planet formation. It is concluded that stellar pollution effects at the mean level of >=2 Earth masses of iron are ruled out by current observational data.

Aaron Dotter; Brian Chaboyer

2003-08-15T23:59:59.000Z

277

XPS study of Ni-Fe manganite thermistor material  

SciTech Connect

The resistivity of the as-fabricated thermistor material, nickel-iron-manganite, changes during initial aging in the temperature range of 150-300{degrees}C before becoming stable. X-ray photoelectron spectroscopy (XPS) was used to determine if any valency change or chemical shift of the cations or oxygen occurred after aging. The goal of the study was to identify any ionic changes that might affect thermistor stability. The only observed changes in 2p{sub 3/2} peaks due to aging were those related to Ni ions; the same peaks for Mn, Fe, and O remained unchanged. The changes in the Ni 2p{sub 3/2} peak may be related to: (a) the migration of Ni{sup 2+} ions from octahedral to tetrahedral sites, (b) subtle changes in the energy states of Ni{sup 2+} which promoted a more stable ionic structure, and/or (c) the presence of Ni{sup 3+} ions, some of which revert back to Ni{sup 2+}.

Braski, D.N. [Oak Ridge National Lab., TN (United States); Osborne, N.R. [Univ. of Dayton Research Institute, OH (United States); Zurbuchen, J.M. [Yellow Springs Instruments, Inc., OH (United States)

1995-03-01T23:59:59.000Z

278

OFFICE OF FOSSIL ENERGY (FE) PROGRAMS ARE FOCUSED ON ACTIVITIES RELATED TO THE RELIABLE, EFFICIENT, AFFORDABLE  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

OFFICE OF FOSSIL ENERGY (FE) PROGRAMS ARE FOCUSED ON OFFICE OF FOSSIL ENERGY (FE) PROGRAMS ARE FOCUSED ON ACTIVITIES RELATED TO THE RELIABLE, EFFICIENT, AFFORDABLE AND ENVIRONMENTALLY SOUND USE OF FOSSIL FUELS, AND ENHANC- ING U.S. ECONOMIC, ENVIRONMENTAL AND ENERGY SECURITY. FE MANAGES DOE'S FOSSIL ENERGY RESEARCH AND DEVELOPMENT (FER&D) PROGRAM, WHICH INCLUDES THE CLEAN COAL POWER INITIATIVE (CCPI); CARBON CAPTURE AND STORAGE (CCS) AND POWER SYSTEMS PROGRAM; ADVANCED ENERGY SYSTEMS; THE CROSSCUTTING RESEARCH ACTIVITY; AND NATURAL GAS TECHNOLOGIES R&D PROGRAM. IN ADDITION, FE OPERATES THE STRATEGIC PETROLEUM RESERVE (SPR), THE NORTHEAST HOME HEATING OIL RESERVE, NAVAL PETROLEUM AND OIL SHALE RESERVES (NPOSR) AND ELK HILLS SCHOOL LANDS FUND. EACH OF THESE ACTIVITIES IS IN A SEPARATE APPROPRIATIONS ACCOUNT. A DESCRIPTION OF MAJOR

279

164 Characteristics of Al0.3CoCrFeNiCx High Entropy Alloys  

Science Conference Proceedings (OSTI)

... of LiMnxFe1-xPO4 Glass and Glass-Ceramics for Lithium Ion Battery .... and Comparing the Inhibition Effect of Chromate, Bromate and Molybdate on the...

280

FE-Docket No. 99-1: Petition to intervene of Calpine Power Services Company  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FE-Docket No. 99-1: Petition to intervene of Calpine Power Services FE-Docket No. 99-1: Petition to intervene of Calpine Power Services Company FE-Docket No. 99-1: Petition to intervene of Calpine Power Services Company Proposed open access requirement for international electric transmission facilities and delegation to the federal energy regulatory commission. Enclosed for filing are an original and fifteen copies of the petition to intervene of power service company in the above-captioned proceeding. FE-Docket No. 99-1: Petition to intervene of Calpine Power Services Company More Documents & Publications Application for Presidential Permit OE Docket No. PP-371 Northern Pass: Comments from Campton Conservation Commission Application for presidential permit OE Docket No. PP-230-4 International Transmission Company: Petition to Intervene Out of Time and Comments of

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

FE Teams Earn Secretary of Energy Achievement Awards | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FE Teams Earn Secretary of Energy Achievement Awards FE Teams Earn Secretary of Energy Achievement Awards FE Teams Earn Secretary of Energy Achievement Awards October 4, 2012 - 1:00pm Addthis Washington, DC - Secretary of Energy Steven Chu today honored two Office of Fossil Energy (FE) groups - the National Energy Technology Laboratory's (NETL) Coronary Stents Team and the Strategic Petroleum Reserve's (SPR) 2011 Drawdown Team - with Secretary of Energy Achievement Awards for exceptional performance in carrying out the Department's mission. Small coronary stents made with a unique platinum-chromium alloy developed by NETL and Boston Scientific can open blocked arteries and save lives.The NETL team was honored for work in formulating a unique platinum-chromium alloy used for new generation coronary stents, which are used to

282

CORROSION OF Fe-10Al-Cr ALLOYS BY COAL CHAR  

E-Print Network (OSTI)

Potent.ials Encountered in Coal Conversion Systems", NASA TNof Illinois #6 ash and coal char. Figure 1. Cross sectionsof Fe-lOAl-Cr Alloys by Coal Char B. A. Gordon and V.

Gordon, B.A.

2011-01-01T23:59:59.000Z

283

The Structural Disorder and Lattice Stability of (Ba,Sr)(Co,Fe)O3 Complex Perovskites  

Science Conference Proceedings (OSTI)

The structural disorder and lattice stability of complex perovskite (Ba,Sr)(Co,Fe)O3, a promising cathode material for solid oxide fuel cells and oxygen permeation membranes, is explored by means of first principles DFT calculations. It is predicted that Ba and Sr ions easily exchange their lattice positions (A-cation disorder) similarly to Co and Fe ions (B-cation disorder). The cation antisite defects (exchange of A- and B-type cations) have a relatively high formation energy. The BSCF is predicted to exist in an equilibrium mixture of several phases and can decompose exothermically into the Ba- and Co-rich hexagonal (Ba,Sr)CoO3 and Sr- and Fe-rich cubic (Ba,Sr)FeO3 perovskites.

S.N.Rashkeev

2011-05-01T23:59:59.000Z

284

Absence of long-range chemical ordering in equimolar FeCoCrNi  

Science Conference Proceedings (OSTI)

Equimolar FeCoCrNi alloys have been the topic of recent research as 'high-entropy alloys,' where the name is derived from the high configurational entropy of mixing for a random solid solution. Despite their name, no systematic study of ordering in this alloy system has been performed to date. Here, we present results from anomalous x-ray scattering and neutron scattering on quenched and annealed samples. An alloy of FeNi{sub 3} was prepared in the same manner to act as a control. Evidence of long-range chemical ordering is clearly observed in the annealed FeNi{sub 3} sample from both experimental techniques. The FeCoCrNi sample given the same heat treatment lacks long-range chemical order.

Lucas, M. S. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); UTC Inc., 1270 North Fairfield Road, Dayton, Ohio 45432 (United States); Wilks, G. B.; Senkov, O. N. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); UES, Inc., 4401 Dayton-Xenia Rd., Dayton, Ohio 45432 (United States); Mauger, L.; Munoz, J. A. [California Institute of Technology, W. M. Keck Laboratory 138-78, Pasadena, California 91125 (United States); Michel, E. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); Wright State University, Dayton, Ohio 45435 (United States); Horwath, J.; Semiatin, S. L. [Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433 (United States); Stone, M. B.; Abernathy, D. L. [Oak Ridge National Laboratory, 1, Bethel Valley Road, Oak Ridge, Tennessee 37831 (United States); Karapetrova, E. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2012-06-18T23:59:59.000Z

285

Coherency Strain and the Kinetics of Phase Separation in LiFePO [subscript 4  

E-Print Network (OSTI)

A theoretical investigation of the effects of elastic coherency strain on the thermodynamics, kinetics, and morphology of intercalation in single LiFePO4 nanoparticles yields new insights into this important battery material. ...

Cogswell, Daniel A.

286

Fabrication and Characterization of Oriented Fe-Y2Ti2O7 Interfaces  

Science Conference Proceedings (OSTI)

... created by electron beam deposition of Fe on {111} Y2Ti2O7 bulk single crystal surfaces. ... Characterizing Complex Metal-oxide Interfaces via Virtual Diffraction ... Microstructurally Explicit Study of Trasport Phenomena in Uranium Oxide.

287

Impurity-Point Defect Interaction in Fe-Cr Alloys: Size Effects versus ...  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Impurity-Point Defect Interaction in Fe-Cr Alloys: Size Effects versus Magnetic Behaviour by D. Nguyen-Manh, M.Y. Lavrentiev and S.L....

288

Clustering and Short-Range Orer in Fe-Cr Alloys: A Monte Carlo Study  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Clustering and Short-Range Orer in Fe-Cr Alloys: A Monte Carlo Study by Mikhail Lavrentiev, Duc Nguyen-Manh, Sergei Dudarev, Ralf Drautz,...

289

Intrinsic stoichiometry and oxygen-induced p-type conductivity of pyrite FeS2  

E-Print Network (OSTI)

The stoichiometry and ubiquitous observation of p-type conductivity of synthetic pyrite FeS[subscript 2] thin films are investigated via first-principles computations of native (vacancies, interstitials, antisites) and ...

Sun, Ruoshi

290

Microsoft PowerPoint - Repasky_Review_Meeting_Final_DE-FE0001858...  

NLE Websites -- All DOE Office Websites (Extended Search)

Meeting 2011 Yearly Review Meeting Project DE-FE0001858 Title: Development of a 1 x N Fiber Optic Sensor Array for Carbon Sequestration Site Monitoring Montana State University...

291

L10-FePt Media for Next-Generation Data Storage Devices  

E-Print Network (OSTI)

MgO/Fe 55 Pt 45 (no Ar milling, no Ta). The second set ofPt 45 , with substrate Ar-ion milling performed before filmdeposition (with Ar milling, no Ta). The third set of

Fernandez, Robert Anthony

2010-01-01T23:59:59.000Z

292

Effect of Cryogenic Milling on the Properties of Fe-14Cr ODS Powder  

Science Conference Proceedings (OSTI)

Generally, ODS steel is produced by high energy ball milling process in order to ... The mixture of Fe and Y2O3 powder was ball milled for 10 hours at room...

293

Synthesis, characterization, and microwave-absorbing properties of polypyrrole/MnFe2O4 nanocomposite  

Science Conference Proceedings (OSTI)

Conductive polypyrrole (PPy)-manganese ferrite (MnFe2O4) nanocomposites with core-shell structure were synthesized by in situ polymerization in the presence of dodecyl benzene sulfonic acid (DBSA) as the surfactant and dopant and ...

Seyed Hossein Hosseini; Ahmad Asadnia

2012-01-01T23:59:59.000Z

294

Molecular dynamics simulation of displacement cascades in FeCr alloys  

E-Print Network (OSTI)

Molecular dynamics simulation of displacement cascades in Fe­Cr alloys L. Malerba a,*, D. Terentyev by displacement cascades in the relevant material. Molecular dynamics (MD) is well known to be the simulation tool

295

Brittle fracture in Nd{sub 2}Fe{sub 14}B intermetallic magnets  

Science Conference Proceedings (OSTI)

Efforts to understand and improve the fracture toughness of Nd{sub 2}Fe{sub 14}B permanent magnets require an understanding of the fracture process itself. Cleavage plane orientations in Nd{sub 2}Fe{sub 14}B were identified by X-ray diffraction and found to be rather random. Cleavage fracture surfaces often exhibited smooth curvatures with no evidence for cleavage steps. The small grain sizes of less than 100 nm in Magnequench MQ material preclude an easy assessment of the fracture mode by scanning electron microscopy. Auger electron spectroscopy showed that much of the surface is covered with a 1 nm thick layer of a neodymium-rich phase presumably the 70Nd-30Fe eutectic phase suggesting that the hard Nd{sub 2}Fe{sub 14}B grains do not cleave but instead failure is at or in the grain boundary phase.

Horton, J.A.; Heatherly, L.; Specht, E.D. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.; Li, D.; Herchenroeder, J.W. [Magnequench International, Inc., Anderson, IN (United States); Canfield, P.C. [Ames Lab., IA (United States)]|[Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy

1998-02-01T23:59:59.000Z

296

Graphene Modified LiFePO4 Cathode Materials for High Power Lithium ion Batteries  

Science Conference Proceedings (OSTI)

Graphene-modified LiFePO{sub 4} composite has been developed as a Li-ion battery cathode material with excellent high-rate capability and cycling stability. The composite was prepared with LiFePO{sub 4} nanoparticles and graphene oxide nanosheets by spray-drying and annealing processes. The LiFePO{sub 4} primary nanoparticles embedded in micro-sized spherical secondary particles were wrapped homogeneously and loosely with a graphene 3D network. Such a special nanostructure facilitated electron migration throughout the secondary particles, while the presence of abundant voids between the LiFePO{sub 4} nanoparticles and graphene sheets was beneficial for Li{sup +} diffusion. The composite cathode material could deliver a capacity of 70 mAh g{sup -1} at 60C discharge rate and showed a capacity decay rate of <15% when cycled under 10C charging and 20C discharging for 1000 times.

Zhou, X.; Wang, F.; Zhu, Y.; Liu, Z.

2011-01-24T23:59:59.000Z

297

Mechanical properties of highly oriented FeSe0.5Te0.5 superconductor  

Science Conference Proceedings (OSTI)

We have synthesized highly oriented samples of the superconducting compound FeSe0.5Te0.5 and investigated its mechanical properties. These samples were characterized by scanning electron microscopy(SEM) with energy-dispersive analysis

Jorge Luiz Pimentel Jnior; Paulo Pureur; Cristiano Santos Lopes; Francisco Carlos Serbena; Carlos Eugnio Foerster; Simone Aparecida da Silva; Alcione Roberto Jurelo; Adilson Luiz Chinelatto

2012-01-01T23:59:59.000Z

298

Pressure tuning of competing magnetic interactions in intermetallic CeFe2  

Science Conference Proceedings (OSTI)

We use high-pressure magnetic x-ray diffraction and numerical simulation to determine the low-temperature magnetic phase diagram of stoichiometric CeFe2. Near 1.5 GPa we find a transition from ferromagnetism to antiferromagnetism, accompanied by a rhombohedral distortion of the cubic Laves crystal lattice. By comparing pressure and chemical substitution we find that the phase transition is controlled by a shift of magnetic frustration from the Ce-Ce to the Fe-Fe sublattice. Notably the dominant Ce-Fe magnetic interaction, which sets the temperature scale for the onset of long-range order, remains satisfied throughout the phase diagram but does not determine the magnetic ground state. Our results illustrate the complexity of a system with multiple competing magnetic energy scales and lead to a general model for magnetism in cubic Laves phase intermetallic compounds.

Wang, Jiyang; Feng, Yejun; Jaramillo, R.; van Wezel, Jasper; Canfield, Paul C.; Rosenbaum, T.F.

2012-07-20T23:59:59.000Z

299

Interim Report: Coiled Tubing Drilling and Intervention System Using Cost Effective Vessel  

NLE Websites -- All DOE Office Websites (Extended Search)

DOCUMENT TITLE: DOCUMENT TITLE: Self Supporting Riser Technology to Enable Coiled Tubing Intervention for Deepwater Wells Document No.: 08121-1502-12 RPSEA PROJECT TITLE: Coil Tubing Drilling and Intervention System Using a Cost Effective Vessel RPSEA Project No.: 08121-1502 01 April 2011 Charles R. Yemington, PE Project Manager Nautilus International 400 North Sam Houston Parkway East, Suite 105 Houston, Texas 77060 RPSEA Project No.: 08121-1502 Coiled Tubing Drilling and Intervention System Using a Cost Effective Vessel RPSEA Project 08121-1502 01 April 2011 Page 2 of 91 LEGAL NOTICE This report was prepared by Nautilus International, LLC. as an account of work sponsored by the Research Partnership to Secure Energy for America (RPSEA). RPSEA members, the

300

Single crystal growth and superconductivity of Ca(Fe1-xCox)2As2  

SciTech Connect

We report the single crystal growth of Ca(Fe1-xCox)2As2 (0 <= x <= 0.082) from Sn flux. The temperature-composition phase diagram is mapped out based on the magnetic susceptibility and electrical transport measurements. Phase diagram of Ca(Fe1-xCox)2As2 is qualitatively different from those of Sr and Ba, it could be due to both the charge doping and structural tuning effects associated with Co substitution.

Hu, Rongwei; Ran, Sheng; Budko, Serguei; Straszheim, Warren E.; Canfield, Paul C.

2012-05-18T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Heat treatment of NiCrFe alloy to optimize resistance to intergrannular stress corrosion  

DOE Patents (OSTI)

A process of producing a NiCrFe alloy having a high resistance to stress corrosion cracking comprising heating a NiCrFe alloy to a temperature sufficient to enable the carbon present in the alloy body in the form of carbide deposits to enter into solution, rapidly cool the alloy body, and heat the cooled body to a temperature between 1100.degree. to 1500.degree. F. for about 1 to 30 hours.

Steeves, Arthur F. (Schenectady, NY); Bibb, Albert E. (Clifton Park, NY)

1984-01-01T23:59:59.000Z

302

Suppression of Phase Separation in LiFePO4 Nanoparticles During Battery Discharge  

E-Print Network (OSTI)

Using a novel electrochemical phase-field model, we question the common belief that LixFePO4 nanoparticles separate into Li-rich and Li-poor phases during battery discharge. For small currents, spinodal decomposition or nucleation leads to moving phase boundaries. Above a critical current density (in the Tafel regime), the spinodal disappears, and particles fill homogeneously, which may explain the superior rate capability and long cycle life of nano-LiFePO4 cathodes.

Bai, Peng; Bazant, Martin Z

2011-01-01T23:59:59.000Z

303

MAGNETO-CHEMICAL CHARACTER STUDIES OF NOVEL FE CATALYSTS FOR COAL LIQUEFACTION  

SciTech Connect

Co-precipitation is the major method proposed for synthesis of molybdenum oxide supported Fe, Fe/Co, and Fe/Cu catalysts. However, many variables may effect the particle size and surface properties of the synthesized catalysts, such as pH of molybdate solution, precipitation temperature and pH, Fe/Mo atomic ratio, pH of the washing solution, aging of the freshly prepared samples, and the length and temperature of calcination. In this period, we have been working on precipitation between iron(III) nitrate solution and ammonium para-molybdate solution under controlled pH condition, and with different Me/Fe atomic ratio. The effect of aging time on the property of the samples was also studied. The samples with the ratio of Fe/MoO{sub 3}: 6.5%, 20%, 26%, and 30% were prepared using above mentioned method. The samples with 6.5% and 26% were characterized with thermal analysis, infrared spectroscopy, magnetization, Moessbauer and X-ray diffraction before and after calcination at 400 C. FTIR was examined on precipitate, calacined and reduced samples as well as CO adsorbed and desorbed samples. Magnetization Studies were made on precipitated, calacined, and reduced samples. Their synthesis and characterization are presented in this report.

Murty A. Akundi

1997-10-01T23:59:59.000Z

304

Phase stabilization and characterization of nanocrystalline Fe-doped Cu{sub 2}O  

SciTech Connect

Oxide-based ferromagnetic semiconductors are currently being explored for spin-based electronics (Spintronics) applications. Specimens of 1 and 2% Fe-doped Cu{sub 2}O were prepared by varying the parameters of chemical co-precipitation technique. XRD analysis confirmed the cubic structure of Cu{sub 2}O. Single-phase structure was obtained for the 1% Fe-doped Cu{sub 2}O, whereas for the 2% Fe-doped Cu{sub 2}O material, secondary phases were present (either CuO or Fe{sub 3}O{sub 4}). The morphology and composition were characterized by SEM and EDAX. Measurements made by vibrating sample magnetometry (VSM) indicated paramagnetic behavior at 300 K and diamagnetic behavior at 77 K for the 1% Fe-doped Cu{sub 2}O. Diffuse reflectance (DRS) measurements indicated that a red shift in the band gap of Cu{sub 2}O occurs on doping with Fe.

Joseph, D. Paul; David, T. Premkumar; Raja, S. Philip [Materials Science Centre, Department of Nuclear Physics, University of Madras, Guindy Campus, Chennai-600 025 (India); Venkateswaran, C. [Materials Science Centre, Department of Nuclear Physics, University of Madras, Guindy Campus, Chennai-600 025 (India)], E-mail: cvunom@hotmail.com

2008-08-15T23:59:59.000Z

305

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes  

NLE Websites -- All DOE Office Websites (Extended Search)

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Despite the considerable amount of iron that enters the oceans from the continents and from hydrothermal vents at mid-ocean ridges on the seafloor, there are large regions of the global ocean where iron availability is so low that it limits life. Oceanographers have long explained this anomaly by assuming that the iron in the sea is primarily incorporated as Fe(III) into inorganic minerals that lack both the mobility to circulate over long distance and bioavailability to sea life as an essential nutrient. Now, a collaboration led by researchers from the Woods Hole Oceanographic Institution has reported that the hydrothermal plumes emerging from the vents actually contain iron in both Fe(II) and Fe(III) oxidation states associated with organic material from nearby flora and fauna. The collaboration suggests that the organic matrices prevent oxidation and precipitation of the Fe(II), perhaps increasing both its circulation through the world's oceans and its bioavailability as a deep-sea nutrient.

306

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes  

NLE Websites -- All DOE Office Websites (Extended Search)

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Despite the considerable amount of iron that enters the oceans from the continents and from hydrothermal vents at mid-ocean ridges on the seafloor, there are large regions of the global ocean where iron availability is so low that it limits life. Oceanographers have long explained this anomaly by assuming that the iron in the sea is primarily incorporated as Fe(III) into inorganic minerals that lack both the mobility to circulate over long distance and bioavailability to sea life as an essential nutrient. Now, a collaboration led by researchers from the Woods Hole Oceanographic Institution has reported that the hydrothermal plumes emerging from the vents actually contain iron in both Fe(II) and Fe(III) oxidation states associated with organic material from nearby flora and fauna. The collaboration suggests that the organic matrices prevent oxidation and precipitation of the Fe(II), perhaps increasing both its circulation through the world's oceans and its bioavailability as a deep-sea nutrient.

307

Optimization of LiFePO4 Nanoparticle Suspensions with Polyethyleneimine for Aqueous Processing  

SciTech Connect

Addition of dispersants to aqueous based lithium-ion battery electrode formulations containing LiFePO{sub 4} is critical to obtaining a stable suspension. The resulting colloidal suspensions enable dramatically improved coating deposition when processing electrodes. This research examines the colloidal chemistry modifications based on polyethyleneimine (PEI) addition and dispersion characterization required to produce high quality electrode formulations and coatings for LiFePO{sub 4} active cathode material. The isoelectric point, a key parameter in characterizing colloidal dispersion stability, of LiFePO{sub 4} and super P C45 were determined to be pH = 4.3 and 3.4, respectively. PEI, a cationic surfactant, was found to be an effective dispersant. It is demonstrated that 1.0 wt % and 0.5 wt % PEI were required to stabilize the LiFePO{sub 4} and super P C45 suspension, respectively. LiFePO{sub 4} cathode suspensions with 1.5 wt % PEI demonstrated the best dispersibility of all components, as evidenced by viscosity and agglomerate size of the suspensions and elemental distribution within dry cathodes. The addition of PEI significantly improved the LiFePO{sub 4} performance.

Li, Jianlin [ORNL; Armstrong, Beth L [ORNL; Kiggans, Jim [ORNL; Daniel, Claus [ORNL; Wood III, David L [ORNL

2012-01-01T23:59:59.000Z

308

Reaction-Based Reactive Transport Modeling of Fe(III) and U(V) Reduction  

SciTech Connect

Our new research project (started Fall 2004) was funded by a grant to The Pennsylvania State University, University of Central Florida, and The University of Alabama in the Integrative Studies Element of the NABIR Program (DE-FG04-ER63914/63915/63196). Our previous NABIR project (DE-FG02-01ER63180/63181/63182, funded within the Biotransformation Element) focused on (1) microbial reduction of Fe(III) and U(VI) individually, and concomitantly in natural sediments, (2) Fe(III) oxide surface chemistry, specifically with respect to reactions with Fe(II) and U(VI), (3) the influence of humic substances on Fe(III) and U(VI) bioreduction, and on U(VI) complexation, and (4) the development of reaction-based reactive transport biogeochemical models to numerically simulate our experimental results. The new project focuses on the development of a mechanistic understanding and quantitative models of coupled Fe(III)/U(VI) reduction in FRC Area 2 sediments. This work builds on our previous studies of microbial Fe(III) and U(VI) reduction, and is directly aligned with the Scheibe et al. NABIR FRC Field Project at Area 2.

Burgos, William D.; Roden, Eric E.; Yeh, Gour-Tsyh

2005-06-01T23:59:59.000Z

309

Electronic structure and vibrational entropies of fcc Au-Fe alloys  

SciTech Connect

Phonon density of states (DOS) curves were measured on alloys of face-centered-cubic (fcc) Au-Fe using nuclear resonant inelastic x-ray scattering (NRIXS) and inelastic neutron scattering (INS). The NRIXS and INS results were combined to obtain the total phonon DOS and the partial phonon DOS curves of Au and Fe atoms. The 57Fe partial phonon DOS of the dilute alloy Au0.97 57Fe0.03 shows a localized mode centered 4.3% above the cutoff energy of the phonons in pure Au. The Mannheim model for impurity modes accurately reproduced this partial phonon DOS using the fcc Au phonon DOS with a ratio of host-host to impurity-host force constants of 1.55. First-principles calculations validated the assumption of first-nearest-neighbor forces in the Mannheim model and gave a similar ratio of force constants. The high energy local mode broadens with increasing Fe composition, but this has a small effect on the composition dependence of the vibrational entropy. The main effect on the vibrational entropy of alloying comes from a stiffening of the Au partial phonon DOS with Fe concentration. This stiffening is attributed to two main effects: 1) an increase in electron density in the free-electron-like states, and 2) stronger sd-hybridization. These two effects are comparable in magnitude.

Munoz, Jorge A. [California Institute of Technology, Pasadena] [California Institute of Technology, Pasadena; Lucas, Matthew [United States Air Force Research Laboratory, Wright-Patterson Air Force Base] [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Mauger, L [California Institute of Technology, W. M. Keck Laboratory, Pasadena] [California Institute of Technology, W. M. Keck Laboratory, Pasadena; Halevy, I [California Institute of Technology, Pasadena] [California Institute of Technology, Pasadena; Horwath, J [United States Air Force Research Laboratory, Wright-Patterson Air Force Base] [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Semiatin, S L [United States Air Force Research Laboratory, Wright-Patterson Air Force Base] [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Xiao, Yuming [Carnegie Institution of Washington] [Carnegie Institution of Washington; Stone, Matthew B [ORNL] [ORNL; Abernathy, Douglas L [ORNL] [ORNL; Fultz, B. [California Institute of Technology, Pasadena] [California Institute of Technology, Pasadena

2013-01-01T23:59:59.000Z

310

A New Fe/V Redox Flow Battery Using Sulfuric/Chloric Mixed Acid Supporting Electrolyte  

SciTech Connect

A redox flow battery using Fe2+/Fe3+ and V2+/V3+ redox couples in chloric/sulphuric mixed acid supporting electrolyte was investigated for potential stationary energy storage applications. The Fe/V redox flow cell using mixed reactant solutions operated within a voltage window of 0.5-1.35 V with a nearly 100% utilization ratio and demonstrated stable cycling over 100 cycles with energy efficiency > 80% and no capacity fading at room temperature. A 25% improvement in the discharge energy density of the Fe/V cell was achieved compared with the previous reported Fe/V cell using pure chloride acid supporting electrolyte. Stable performance was also achieved in the temperature range between 0 C and 50 C as well as using microporous separator as the membrane. The improved electrochemical performance at room temperature makes the Fe/V redox flow battery a promising option as a stationary energy storage device to enable renewable integration and stabilization of the electrical grid.

Wang, Wei; Nie, Zimin; Chen, Baowei; Chen, Feng; Luo, Qingtao; Wei, Xiaoliang; Xia, Guanguang; Skyllas-Kazacos, Maria; Li, Liyu; Yang, Zhenguo

2012-04-01T23:59:59.000Z

311

Magnetic properties of (Sm,Y){sub 5}Fe{sub 17} melt-spun ribbons  

SciTech Connect

An investigation of the synthesis of the (Sm{sub 1-x}Y{sub x}){sub 5}Fe{sub 17} (x = 0 to 0.5) phase and its magnetic properties is presented. (Sm{sub 1-x}Y{sub x}){sub 5}Fe{sub 17} (x = 0 to 0.5) melt-spun ribbons that fully or mainly consisted of the amorphous phase and which showed low coercivity were prepared. Heat treatment of the melt-spun ribbons resulted in the formation of the (Sm,Y){sub 5}Fe{sub 17} phase. The highest remanence, 50 emu/g, was achieved in the annealed (Sm{sub 0.7}Y{sub 0.3}){sub 5}Fe{sub 17} melt-spun ribbon. However,the annealed (Sm{sub 1-x}Y{sub x}){sub 5}Fe{sub 17} (x = 0.4 to 0.5) melt-spun ribbons did not contain the (Sm,Y){sub 5}Fe{sub 17} phase and showed low coercivity values.

Saito, Tetsuji [Department of Mechanical Science and Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016 (Japan); Nishio-Hamane, Daisuke [Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)

2011-04-01T23:59:59.000Z

312

Microbial Reductive Transformation of Phyllosilicate Fe(III) and U(VI) in Fluvial Subsurface Sediments  

SciTech Connect

The microbial reduction of Fe(III) and U(VI) were investigated in shallow aquifer sediments collected from subsurface Pleistocene flood deposits near the Hanford Reach of the Columbia River in Washington State. Increases in 0.5 N HCl-extractable Fe(II) were observed in incubated sediments and 57Fe Mssbauer spectroscopy revealed that Fe(III) associated with phyllosilicates and pyroxene was reduced to Fe(II). Aqueous uranium(VI) concentrations decreased in incubated Hanford sediments with the rate and extent being greater in sediment amended with organic carbon. X-ray absorption spectroscopy of bioreduced sediments indicated that 67-77% of the U signal was U(VI), probably as an adsorbed species associated with a new or modified reactive mineral phase. Phylotypes within the Deltaproteobacteria were more common in Hanford sediments incubated with U(VI) than without and in U(VI)-free incubations, members of the Clostridiales were dominant with sulfate-reducing phylotypes more common in the sulfate-amended sediments. These results demonstrate the potential for anaerobic reduction phyllosilicate Fe(III) and sulfate in Hanford unconfined aquifer sediments and biotransformations involving reduction and adsorption leading to decreased aqueous U concentrations.

Lee, Ji-Hoon; Fredrickson, Jim K.; Kukkadapu, Ravi K.; Boyanov, Maxim I.; Kemner, Kenneth M.; Lin, Xueju; Kennedy, David W.; Bjornstad, Bruce N.; Konopka, Allan; Moore, Dean A.; Resch, Charles T.; Phillips, Jerry L.

2012-04-14T23:59:59.000Z

313

Reductive dechlorination of chlorinated aliphatic hydrocarbons by Fe(ii) in degradative solidification/stabilization  

E-Print Network (OSTI)

This dissertation examines the applicability of the iron-based degradative solidification/stabilization (DS/S-Fe(II)) to various chlorinated aliphatic hydrocarbons (CAHs) that are common chemicals of concern at contaminated sites. The research focuses on the transformation of 1,1,1-trichloroethane (1,1,1-TCA), 1,1,2,2-tetrachloro-ethane (1,1,2,2-TetCA) and 1,2-dichloroehtane (1,2-DCA) by Fe(II) in cement slurries. It also investigates the degradation of 1,1,1-TCA by a mixture of Fe(II), cement and three iron-bearing phyllosilicates. Transformation of 1,1,1-TCA and 1,1,2,2-TetCA by Fe(II) in 10% cement slurries was characterized using batch reactors. Dechlorination kinetics of 1,1,1-TCA and TCE* (TCE that was produced by transformation of 1,1,2,2-TetCA) was strongly dependent on Fe(II) dose, pH and initial target organic concentration. Degradation of target organics in DS/S-Fe(II) process was generally described by a pseudo-first-order rate law. However, saturation relationships between the rate constants and Fe(II) dose or between the initial degradation rates and target organic concentration were observed. These behaviors were properly described by a modified Langmuir-Hinshelwood kinetic model. This supports the working hypothesis of this research that reductive dechlorination of chlorinated ethanes occurs on the surface of active solids formed in mixtures of Fe(II) and cement. Transformation products for 1,1,1-TCA and 1,1,2,2-TetCA in mixtures of Fe(II) and cement were identified. The major product of the degradation of 1,1,1-TCA was 1,1-DCA, which indicates that the reaction followed a hydrogenolysis pathway. However, a small amount of ethane was also observed. TCE* was rapidly produced by degradation of 1,1,2,2-TetCA and is expected to undergo ?²-elimination to produce acetylene. Dechlorination of 1,1,1-TCA in suspension of Fe(II), cement and three soil minerals (biotite, vermiculite, montmorillonite) was characterized using batch reactors. A first-order rate model was generally used to describe the dechlorination kinetics of 1,1,1-TCA in this heterogeneous system. The rate constants for 1,1,1-TCA in mixtures of Fe(II), cement and soil minerals were influenced by soil mineral types, Fe(II) dose and the mass ratio of cement to soil mineral. It was demonstrated that structural Fe(II) and surface-bound Fe(II) in the soil minerals affect dechlorination kinetics and the effects vary with mineral types. Furthermore, it suggests that the reductant formed from Fe(II) and cement hydration components is also effective in systems that include soil minerals.

Jung, Bahng Mi

2005-12-01T23:59:59.000Z

314

Tailoring Fe-Base Alloys for Intermediate Temperature SOFC Interconnect Application  

DOE Green Energy (OSTI)

This report summarized the research efforts and major conclusions for our SECA Phase I and II project focused on Cr-free or low Cr Fe-Ni based alloy development for intermediate temperature solid oxide fuel cell (SOFC) interconnect application. Electrical conductivity measurement on bulk (Fe,Ni){sub 3}O{sub 4} coupons indicated that this spinel phase possessed a higher electrical conductivity than Cr{sub 1.5}Mn{sub 1.5}O{sub 4} spinel and Cr{sub 2}O{sub 3}, which was consistent with the low area specific resistance (ASR) of the oxide scale formed on these Fe-Ni based alloys. For Cr-free Fe-Ni binary alloys, although the increase in Ni content in the alloys improved the oxidation resistance, and the Fe-Ni binary alloys exhibited adequate CTE and oxide scale ASR, their oxidation resistance needs to be further improved. Systematic alloy design efforts have led to the identification of one low-Cr (6wt.%) Fe-Ni-Co based alloy which formed a protective, electrically-conductive Cr{sub 2}O{sub 3} inner layer underneath a Cr-free, highly conductive spinel outer layer. This low-Cr, Fe-Ni-Co alloy has demonstrated a good CTE match with other cell components; high oxidation resistance comparable to that of Crofer; low oxide scale ASR with the formation of electrically-insulating phases in the oxide scale; no scale spallation during thermal cycling; adequate compatibility with cathode materials; and comparable mechanical properties with Crofer. The existence of the Cr-free (Fe,Co,Ni){sub 3}O{sub 4} outer layer effectively reduced the Cr evaporation and in transpiration testing resulted in a 6-fold decrease in Cr evaporation as compared to a state-of-the-art ferritic interconnect alloy. In-cell testing using an anode supported cell with a configuration of Alloy/Pt/LSM/YSZ/Ni+YSZ indicates that the formation of the Cr-free spinel layer via thermal oxidation was effective in blocking the Cr migration and thus improving the cell performance stability. Electroplating of the Fe-Ni-Co alloys as precursor to synthesize a protective spinel layer on commercial ferritic steels has been initiated to facilitate the utilization of the Cr-free spinel as a surface seal to block Cr evaporation. It is suggested that low-cost Fe-Ni-Co alloy coating on commercial ferritic steels might be the best approach to completely eliminate the Cr poisoning problem in SOFC stacks, while maintaining the relatively low overall cost of the interconnect component.

J.H. Zhu; M.P. Brady; H.U. Anderson

2007-12-31T23:59:59.000Z

315

Data:E471fe65-077f-4bee-b8a8-ae0e946770fe | Open Energy Information  

Open Energy Info (EERE)

fe65-077f-4bee-b8a8-ae0e946770fe fe65-077f-4bee-b8a8-ae0e946770fe No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Pontotoc Electric Power Assn Effective date: 2013/07/01 End date if known: Rate name: Security Light HPS 100 W 40' pole Sector: Lighting Description: Source or reference: http://www.sitemason.com/files/fjDo1q/May%202012.pdf Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service Voltage Category: Phase Wiring: << Previous 1 2 3

316

Data:B400dafc-8277-4c64-b21b-887fe880a1fe | Open Energy Information  

Open Energy Info (EERE)

dafc-8277-4c64-b21b-887fe880a1fe dafc-8277-4c64-b21b-887fe880a1fe No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Elkhorn, Wisconsin (Utility Company) Effective date: 2012/07/01 End date if known: Rate name: Cp-1TOD; Small Power Optional Time-of-Day Service-Transformer Ownership Discount and Primary Metering Discount-20kW or less-Net Energy Billing) Sector: Commercial Description: This rate schedule is optional to all Cp-1 customers. Customers that wish to be served on this rate schedule must apply to the utility for service. Once an optional customer begins service on this rate schedule, the customer shall remain on the rate for a minimum of one year. Any customer choosing to be served on this rate schedule waives all rights to billing adjustments arising from a claim that the bill for service would be less on another rate schedule than under this rate schedule.

317

Data:E44a8d9f-e0fe-4a81-a139-8493f21d7229 | Open Energy Information  

Open Energy Info (EERE)

d9f-e0fe-4a81-a139-8493f21d7229 d9f-e0fe-4a81-a139-8493f21d7229 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Flint Electric Membership Corp Effective date: 2007/04/01 End date if known: Rate name: Outdoor Lighting GUS Shoebox HPS 1000 W Sector: Lighting Description: POLE CHARGES Type, Charge 30' Wood $205.00 35' Wood $220.00 16' Aluminum (Brushed) $250.00 16' Fiberglass (Black) $300.00 16' Fiberglass (Acorn, Black) $800.00 30' Steel & Sub Base $1325.00 30' Fiberglass with 6' Arm $625.00 30' Fiberglass with 2 - 6' Arm $725.00 Source or reference: http://www.flintenergies.com/myHome/residentialRates/covenantStreetLighting.aspx

318

Data:916c47bc-b7fe-42e1-b7e2-7660fe4dd49b | Open Energy Information  

Open Energy Info (EERE)

c47bc-b7fe-42e1-b7e2-7660fe4dd49b c47bc-b7fe-42e1-b7e2-7660fe4dd49b No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Marshfield, Wisconsin (Utility Company) Effective date: 2012/02/01 End date if known: Rate name: Cp-1 Small Power Service between 50kW and 200kW Demand Primary Metering Discount Sector: Industrial Description: Power Cost Adjustment Clause - All metered rates shall be subject to a positive or negative power cost adjustment charge equivalent to the amount by which the current cost of power (per kilowatt-hour of sales) is greater or lesser than the base cost of power purchased (per kilowatt-hour of sales). The base cost of power (U) is $0.0515 per kilowatt-hour.

319

Data:33db466d-20e7-4d4c-8fe8-57fe6694f5fd | Open Energy Information  

Open Energy Info (EERE)

db466d-20e7-4d4c-8fe8-57fe6694f5fd db466d-20e7-4d4c-8fe8-57fe6694f5fd No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Kenergy Corp Effective date: 2011/09/01 End date if known: Rate name: Fuel Adjustment Rider Sector: Description: APPLICABLE In all territory served. FUEL ADJUSTMENT RATE SECTION 1 BILLINGS TO CUSTOMERS SERVED FROM NON-DEDICATED DELIVERY POINTS Billings computed pursuant to rate schedules to which this section is applicable shall be adjusted based on the following formula where all references to costs and revenues will exclude amounts associated with customers served from Dedicated Delivery Points. The fuel adjustment rate applicable to KWH sold in the current month under each rate to which this section applies shall be based upon the fallowing formula: F= ((WFAC-O+U)/(P(m) x L)) - F(b)

320

Data:F77ed989-582c-4fe5-8fe9-fb07a47b1ee4 | Open Energy Information  

Open Energy Info (EERE)

89-582c-4fe5-8fe9-fb07a47b1ee4 89-582c-4fe5-8fe9-fb07a47b1ee4 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Bountiful, Utah (Utility Company) Effective date: 2011/07/01 End date if known: Rate name: Residential-Beacon light fee, per lamp, per month Sector: Lighting Description: This schedule is for services and products rendered to Customers by BCLP. Source or reference: http://www.bountifulutah.gov/WorkArea/showcontent.aspx?id=6138 Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months):

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321

Data:6e1a44be-83a1-4d87-9fe5-fe4db372e495 | Open Energy Information  

Open Energy Info (EERE)

a44be-83a1-4d87-9fe5-fe4db372e495 a44be-83a1-4d87-9fe5-fe4db372e495 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Salt River Electric Coop Corp Effective date: 2011/06/01 End date if known: Rate name: Large Power 500 kW - 999 kW Sector: Industrial Description: Source or reference: www.srelectric.com Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service Voltage Category: Phase Wiring: << Previous 1 2 3 Next >> << Previous 1 2 3 Next >>

322

A First-principles Study onA First-principles Study on Fe Substituted CrFe Substituted Cr2323CC66  

E-Print Network (OSTI)

halpy of FeCr22C6. #12;Creep Resistant Steel Steam Power Plant Efficiency ~42 % Goal Efficiency 45 common power plant steels (MTDAT A, SGTE database, 565 °C) [Bhadeshia, 2001] M23C6 in Power Plant Steels by the all-electron full potential linearized a ugmented plane-wave method (FLAPW) within the generalized g

Cambridge, University of

323

Proceedings of the joint contractors meeting: FE/EE Advanced Turbine Systems conference FE fuel cells and coal-fired heat engines conference  

SciTech Connect

The joint contractors meeting: FE/EE Advanced Turbine Systems conference FEE fuel cells and coal-fired heat engines conference; was sponsored by the US Department of Energy Office of Fossil Energy and held at the Morgantown Energy Technology Center, P.O. Box 880, Morgantown, West Virginia 26507-0880, August 3--5, 1993. Individual papers have been entered separately.

Geiling, D.W. [ed.

1993-08-01T23:59:59.000Z

324

Data:F8baf3fe-77ac-4e88-81fe-07693c8def83 | Open Energy Information  

Open Energy Info (EERE)

baf3fe-77ac-4e88-81fe-07693c8def83 baf3fe-77ac-4e88-81fe-07693c8def83 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Indiana Michigan Power Co (Michigan) Effective date: 2013/04/01 End date if known: Rate name: COGEN/SPP - Cogeneration and/or Small Power Production Service Sector: Description: Monthly Charges for Delivery from the Company to the Customer (1) Supplemental Service Available to the customer to supplement its COGEN/SPP source of power supply which will enable either or both sources of supply to be utilized for all or any part of the customer's total requirements. Charges for energy, and demand where applicable, to serve the customer's net or total load shall be determined according to the rate schedule appropriate for the customer. Option 1 and Option 2 customers with COGEN/SPP facilities having a total design capacity of more than 10 kW shall be served under demand-metered rate schedules.

325

Phase Diagram of KxFe2-ySe2-zSz and the Suppression of its Superconducting State by an Fe2-Se=S Tetrahedron Distortion  

Science Conference Proceedings (OSTI)

We report structurally tuned superconductivity in a K{sub x}Fe{sub 2-y}Se{sub 2-z}S{sub z} (0 {le} z {le} 2) phase diagram. Superconducting T{sub c} is suppressed as S is incorporated into the lattice, eventually vanishing at 80% of S. The magnetic and conductivity properties can be related to stoichiometry on a poorly occupied Fe1 site and the local environment of a nearly fully occupied Fe2 site. The decreasing T{sub c} coincides with the increasing Fe1 occupancy and the overall increase in Fe stoichiometry from z = 0 to z = 2. Our results indicate that the irregularity of the Fe2-Se/S tetrahedron is an important controlling parameter that can be used to tune the ground state in the new superconductor family.

Lei H.; Abeykoon, M.; Bozin, E.S.; Wang, K.; Warren, J.B.; Petrovic, C.

2011-09-19T23:59:59.000Z

326

Phase Diagram of KxFe2-ySe2-zSz and the Suppression of its Superconducting State by an Fe2-Se/S Tetrahedron Distortion  

SciTech Connect

We report structurally tuned superconductivity in a K{sub x}Fe{sub 2-y}Se{sub 2-z}S{sub z} (0 {le} z {le} 2) phase diagram. Superconducting T{sub c} is suppressed as S is incorporated into the lattice, eventually vanishing at 80% of S. The magnetic and conductivity properties can be related to stoichiometry on a poorly occupied Fe1 site and the local environment of a nearly fully occupied Fe2 site. The decreasing T{sub c} coincides with the increasing Fe1 occupancy and the overall increase in Fe stoichiometry from z = 0 to z = 2. Our results indicate that the irregularity of the Fe2-Se/S tetrahedron is an important controlling parameter that can be used to tune the ground state in the new superconductor family.

H Lei; M Abeykoon; E Bozin; K Wang; J Warren; C Petrovic

2011-12-31T23:59:59.000Z

327

Corrosion Behavior of NiCrFe Alloy 600 in High Temperature, Hydrogenated Water  

SciTech Connect

The corrosion behavior of Alloy 600 (UNS N06600) is investigated in hydrogenated water at 260 C. The corrosion kinetics are observed to be parabolic, the parabolic rate constant being determined by chemical descaling to be 0.055 mg dm{sup -2} hr{sup -1/2}. A combination of scanning and transmission electron microscopy, supplemented by energy dispersive X-ray spectroscopy and grazing incidence X-ray diffraction, are used to identify the oxide phases present (i.e., spinel) and to characterize their morphology and thickness. Two oxide layers are identified: an outer, ferrite-rich layer and an inner, chromite-rich layer. X-ray photoelectron spectroscopy with argon ion milling and target factor analysis is applied to determine spinel stoichiometry; the inner layer is (Ni{sub 0.7}Fe{sub 0.3})(Fe{sub 0.3}Cr{sub 0.7}){sub 2}O{sub 4}, while the outer layer is (Ni{sub 0.9}Fe{sub 0.1})(Fe{sub 0.85}Cr{sub 0.15}){sub 2}O{sub 4}. The distribution of trivalent iron and chromium cations in the inner and outer oxide layers is essentially the same as that found previously in stainless steel corrosion oxides, thus confirming their invariant nature as solvi in the immiscible spinel binary Fe{sub 3}O{sub 4}-FeCr{sub 2}O{sub 4} (or NiFe{sub 2}O{sub 4}-NiCr{sub 2}O{sub 4}). Although oxidation occurred non-selectively, excess quantities of nickel(II) oxide were not found. Instead, the excess nickel was accounted for as recrystallized nickel metal in the inner layer, as additional nickel ferrite in the outer layer, formed by pickup of iron ions from the aqueous phase, and by selective release to the aqueous phase.

SE Ziemniak; ME Hanson

2004-11-02T23:59:59.000Z

328

Energy Department Projects Focus on Sustainable Natural Gas Developmen...  

NLE Websites -- All DOE Office Websites (Extended Search)

offshore sites, as well as unconventional sources. Together, DOE and RPSEA form a public-private partnership that brings policy and technology together to ensure that America's...

329

UDAC Meeting - January 2008 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

to the Draft Sec. 999 2008 Annual Plan DAC Recommendations for 2007 Annual Plan RPSEA Unconventional Onshore and Small Producers Program DOENETL Oil & Gas Program Overview...

330

NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Services Provide technology transfer services to RPSEA for the Ultra-Deepwater and Unconventional Natural Gas & Other Petroleum Resources Program. 09 13 2010 Gary Covatch Digitally...

331

CX-004083: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Partnership to Secure Energy for America (RPSEA) for the Ultra-Deepwater and Unconventional Natural Gas and Other Petroleum Resources Program. DOCUMENT(S) AVAILABLE FOR...

332

Carbon Nanotube Coated Conductor Composites  

Science Conference Proceedings (OSTI)

... Secure Energy for America (RPSEA) via subcontract 09121-3300-10 and the ... Hollow Fiber Solar Cells: Processing, Morphology, and Property Correlations.

333

Stripe-to-bubble transition of magnetic domains at the spin reorientation of (Fe/Ni)/Cu/Ni/Cu(001)  

Science Conference Proceedings (OSTI)

Magnetic domain evolution at the spin reorientation transition (SRT) of (Fe/Ni)/Cu/Ni/Cu(001) is investigated using photoemission electron microscopy. While the (Fe/Ni) layer exhibits the SRT, the interlayer coupling of the perpendicularly magnetized Ni layer to the (Fe/Ni) layer serves as a virtual perpendicular magnetic field exerted on the (Fe/Ni) layer. We find that the perpendicular virtual magnetic field breaks the up-down symmetry of the (Fe/Ni) stripe domains to induce a net magnetization in the normal direction of the film. Moreover, as the virtual magnetic field increases to exceed a critical field, the stripe domain phase evolves into a bubble domain phase. Although the critical field depends on the Fe film thickness, we show that the area fraction of the minority domain exhibits a universal value that determines the stripe-to-bubble phase transition.

Wu, J.; Choi, J.; Won, C.; Wu, Y. Z.; Scholl, A.; Doran, A.; Hwang, Chanyong; Qiu, Z.

2010-06-09T23:59:59.000Z

334

p-type conduction induced by N-doping in {alpha}-Fe{sub 2}O{sub 3}  

Science Conference Proceedings (OSTI)

A p-type N-doped {alpha}-Fe{sub 2}O{sub 3} was developed by magnetron sputtering of a Fe{sub 2}O{sub 3} target in a plasma containing N{sub 2} and Ar followed by postannealing. Photoelectrochemical measurement under visible light irradiation (>410 nm) showed that N-Fe{sub 2}O{sub 3} exhibits a typical cathodic photocurrent originated from the p-type conduction. X-ray photoemission spectroscopy indicated that the atomic N incorporated substitutionally at O sites was responsible for the p-type conduction. The concentration of acceptors was very close to that for Zn-doped Fe{sub 2}O{sub 3}, a typical p-type {alpha}-Fe{sub 2}O{sub 3}. This finding would stimulate further research on p-type Fe{sub 2}O{sub 3} for solar fuel generation, etc.

Morikawa, Takeshi; Kitazumi, Kousuke; Takahashi, Naoko; Arai, Takeo; Kajino, Tsutomu [Toyota Central Research and Development Laboratories, Inc., Nagakute, Aichi 480-1192 (Japan)

2011-06-13T23:59:59.000Z

335

Purification and Characterization of [NiFe]-Hydrogenase of Shewanella oneidensis MR-1  

SciTech Connect

The ?-proteobacterium Shewanella oneidensis MR-1 possesses a periplasmic [NiFe]-hydrogenase (MR-1 [NiFe]-H2ase) that was implicated in both H2 production and oxidation as well as technetium [Tc(VII)] reduction. To characterize the roles of MR-1 [NiFe]-H2ase in these proposed reactions, the genes encoding both subunits of MR-1 [NiFe]-H2ase were cloned into a protein expression vector. The resulting plasmid was transformed into a MR-1 mutant deficient in H2 formation. Expression of MR-1 [NiFe]-H2ase in trans restored the mutants ability to produce H2 at 37% of that for wild type. Following expression, MR-1 [NiFe]-H2ase was purified to near homogeneity. The purified MR-1 [NiFe]-H2ase could couple H2 oxidation to reduction of Tc(VII) and methyl viologen directly. Change of the buffers used affected MR-1 [NiFe]-H2ase-mediated Tc(VII) but not methyl viologen reductions. Under the conditions tested, Tc(VII) reduction was complete in Tris buffer but not in HEPES buffer. The reduced Tc(IV) was soluble in Tris buffer but insoluble in HEPES buffer. Transmission electron microscopy analysis revealed that Tc(IV) precipitates formed in HEPES buffer were packed with crystallites. Although X-ray absorption near-edge spectroscopy measurements confirmed that the reduction products found in both buffers were Tc(IV), extended X-ray adsorption fine-structure measurements revealed that these products were very different. While the product in Tris buffer could not be determined, the Tc(IV) product in HEPES buffer was very similar to Tc(IV)O2nH2O. These results shows for the first time that MR-1 [NiFe]-H2ase is a bidirectional enzyme that catalyzes both H2 formation and oxidation as well as Tc(VII) reduction directly by coupling H2 oxidation.

Shi, Liang; Belchik, Sara M.; Plymale, Andrew E.; Heald, Steve M.; Dohnalkova, Alice; Sybirna, Kateryna; Bottin, Herve; Squier, Thomas C.; Zachara, John M.; Fredrickson, Jim K.

2011-08-02T23:59:59.000Z

336

Immobilization of 99-Technetium (VII) by Fe(II)-Goethite and Limited Reoxidation  

Science Conference Proceedings (OSTI)

Synthesized goethite was successfully used with addition of Fe(II) to sequester Tc present in both deionized water and simulated off-gas scrubber waste solutions. Pertechnetate concentration in solution decreased immediately when the pH was raised above 7 by addition of sodium hydroxide. Removal of Tc(VII) from solution occurred most likely as a result of heterogeneous surface-catalyzed reduction to Tc(IV) and subsequent co-precipitation onto the goethite. The final Tc-bearing solid was identified as goethite-dominated Fe(III)-(oxy)hydroxide based on XRD analysis, confirming the widespread observation of its characteristic acicular habit by TEM/SEM images. Analysis of the solid precipitate by XAFS showed that the dominant oxidation state of Tc was Tc(IV) and was in octahedral coordination with Tc-O, Fe-O, and Tc-Fe bond distances that are consistent with direct substitution of Tc for Fe in the goethite structure. In some experiments the final Tc-goethite product was subsequently armored with additional layers of freshly precipitated goethite. Successful incorporation of Tc(IV) within the goethite mineral lattice and subsequent goethite armoring can limit re-oxidation of Tc(IV) and its subsequent release from Tc-goethite waste forms, even when the final product is placed in oxidizing environments that typify shallow waste burial facilities.

Um, Wooyong; Chang, Hyun-Shik; Icenhower, Jonathan P.; Lukens, Wayne W.; Serne, R. Jeffrey; Qafoku, Nikolla; Westsik, Joseph H.; Buck, Edgar C.; Steven, Smith C.

2011-05-04T23:59:59.000Z

337

Stability of uranium incorporated into Fe(hydr)oxides under fluctuating redox conditions  

SciTech Connect

Reaction pathways resulting in uranium bearing solids that are stable (i.e., having limited solubility) under both aerobic and anaerobic conditions will limit dissolved concentrations and migration of this toxin. Here we examine the sorption mechanism and propensity for release of uranium reacted with Fe (hydr)oxides under cyclic oxidizing and reducing conditions. Upon reaction of ferrihydrite with Fe(II) under conditions where aqueous Ca-UO{sub 2}-CO{sub 3} species predominate (3 mM Ca and 3.8 mM CO{sub 3}-total), dissolved uranium concentrations decrease from 0.16 mM to below detection limit (BDL) after 5 to 15 d, depending on the Fe(II) concentration. In systems undergoing 3 successive redox cycles (15 d of reduction followed by 5 d of oxidation) and a pulsed decrease to 0.15 mM CO{sub 3}-total, dissolved uranium concentrations varied depending on the Fe(II) concentration during the initial and subsequent reduction phases - U concentrations resulting during the oxic 'rebound' varied inversely with the Fe(II) concentration during the reduction cycle. Uranium removed from solution remains in the oxidized form and is found both adsorbed on and incorporated into the structure of newly formed goethite and magnetite. Our 15 results reveal that the fate of uranium is dependent on anaerobic/aerobic conditions, aqueous uranium speciation, and the fate of iron.

Stewart, B.D.; Nico, P.S.; Fendorf, S.

2009-04-01T23:59:59.000Z

338

On Deep-Ocean Fe-60 as a Fossil of a Near-Earth Supernova  

E-Print Network (OSTI)

Live $^{60}$Fe has recently been reported in a deep-ocean ferromanganese crust. Analysis of the isotopic ratios in the sample suggests that the measured $^{60}$Fe abundance exceeds the levels generated by terrestrial and cosmogenic sources, and it has been proposed that the excess of $^{60}$Fe is a signature of a supernova that exploded near the earth several Myr ago. In this paper, we consider the possible background sources, and confirm that the measured $^{60}$Fe is significantly higher than all known backgrounds, in contrast with the reported abundance of live $^{53}$Mn. We discuss scenarios in which the data are consistent with a supernova event at a distance $D \\sim 30$ pc and an epoch $t_{\\rm SN} \\sim 5$ Myr ago. We propose tests that could confirm or refute the interpretation of the $^{60}$Fe discovery, including searches for $^{10}$Be, $^{129}$I and $^{146}$Sm. Such a nearby supernova event might have had some impact on the earth's biosphere, principally by enhancing the cosmic-ray flux. This might have damaged the earth's ozone layer, enhancing the penetration of solar ultraviolet radiation. In this connection, we comment on the Middle Miocene and Pliocene mini-extinction events. We also speculate on the possibility of a supernova-induced "cosmic-ray winter," if cosmic rays play a significant role in seeding cloud formation.

Brian D. Fields; John Ellis

1998-11-29T23:59:59.000Z

339

Fe/Si(001) Ferromagnetic Layers: Reactivity, Local Atomic Structure and Magnetism  

SciTech Connect

Ultrathin ferromagnetic Fe layers on Si(001) have recently been synthesized using the molecular beam epitaxy (MBE) technique, and their structural and magnetic properties, as well as their interface reactivity have been investigated. The study was undertaken as function of the amount of Fe deposited and of substrate temperature. The interface reactivity was characterized by Auger electron spectroscopy (AES). The surface structure was characterized by low-energy electron diffraction (LEED). The magnetism was investigated by magneto-optical Kerr effect (MOKE). A higher deposition temperature stabilizes a better surface ordering, but it also enhances Fe and Si interdiffusion and it therefore decreases the magnetism. Despite the rapid disappearance of the long range order with Fe deposition at room temperature, the material exhibits a significant uniaxial in-plane magnetic anisotropy. For the Fe deposition performed at high temperature (500 deg. C), a weak ferromagnetism is still observed, with saturation magnetization of about 10% of the value obtained previously. MOKE studies allowed inferring the main properties of the distinct formed layers.

Lungu, G. A.; Costescu, R. M.; Husanu, M. A.; Gheorghe, N. G. [National Institute of Materials Physics, Atomistilor 105bis, 077125 Magurele-Ilfov (Romania)

2011-10-03T23:59:59.000Z

340

Development of a new graded-porosity FeAl alloy by elemental reactive synthesis  

SciTech Connect

A new graded-porosity FeAl alloy can be fabricated through Fe and Al elemental reactive synthesis. FeAl alloy with large connecting open pores and permeability were used as porous supports. The coating was obtained by spraying slurries consisting of mixtures of Fe powder and Al powder with 3 5 m diameter onto porous FeAl support and then sintered at 1100 C. The performances of the coating were compared in terms of thickness, pore diameter and permeability. With an increase in the coating thickness up to 200 m, the changes of maximum pore size decreased from 23.6 m to 5.9 m and the permeability decreased from 184.2 m3m 2kPa 1h 1 to 76.2 m3m 2kPa 1h 1, respectively, for a sintering temperature equal to 1100 C. The composite membranes have potential application for excellent filters in severe environments.

Shen, P Z [State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China; He, Y H [State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China; Gao, H Y [State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China; Zou, J [School of Engineering and Centre for Microscopy and Microanalysis, The University of Queensland, QLD; Xu, N P [Membrane Science and Technology Research Center, Nanjing University of Technology, Nanjing 210009, C; Jiang, Y [State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China; Huang, B [State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China; Lui, C T [Oak Ridge National Laboratory (ORNL)

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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341

Similarities and differences in the microstructure of attritor-milled Fe-Al-N compositions  

Science Conference Proceedings (OSTI)

Although numerous studies of high-energy, ball-milled metal powders have been conducted, to date few studies have characterized the mechanical processing of identical elemental compositions of prealloyed powders and of powder blends. This study reports on the mechanical processing (attritor ball milling) in argon and nitrogen gas environments of (a) iron powder and prealloyed iron2 wt.% aluminum powder, and (b) iron-aluminum, iron-aluminum nitride, and iron-iron nitride powder blends. When nitrogen was milled into iron particles either from nitride powder or by gas infusion, the nitrogen dissolved interstitially in bcc-Fe (principally at the grain boundaries) or was present as bct-Fe nanoparticles at the bcc-Fe nanograin boundaries. The resulting nitrogen distribution was independent of how the nitrogen was added. Milled blends of iron and aluminum powder and prealloyed iron-aluminum powder resulted in similar microstructures: micrometer size particles with similar nanograin size. The aluminum in the blended powder mixture developed an ultrafine distribution on the grain boundaries, but it did not become uniformly distributed within the bcc-Fe grains. In contrast, the aluminum in prealloyed FeAl powder remained in solid solution during the mechanical milling.

Rawers, J.C.; Cook, D.C. (Old Dominion U., Norfolk, VA)

1997-04-01T23:59:59.000Z

342

Magnetic order near 270 K in mineral and synthetic Mn 2 FeSbO 6 ilmenite  

Science Conference Proceedings (OSTI)

The structural and magnetic properties of Mn 2 FeSbO 6 single-crystalline mineral and ceramic samples synthesized under thermobaric treatment have been investigated

R. Mathieu; S. A. Ivanov; G. V. Bazuev; M. Hudl; P. Lazor; I. V. Solovyev; P. Nordblad

2011-01-01T23:59:59.000Z

343

Growth condition dependence of spin-polarized electroluminescence in Fe/MgO/light-emitting diodes  

SciTech Connect

We compared the electroluminescence (EL) polarization of two Fe/MgO/light-emitting-diode (LED) structures grown at different substrate temperatures for MgO growth: room temperature and 400 deg. C. Two spin-LED wafers were prepared on molecular beam epitaxy grown LEDs by e-beam evaporation: one was LED/MgO (RT)/Fe (RT)/Au cap (RT), and the other was LED/MgO (400 deg. C)/Fe (150 deg. C)/Au cap (90 deg. C). Spin-polarized EL was clearly observed in the latter sample, while the EL polarization was hardly observed in the former sample. The reasons for the near absence of EL polarization in the former sample are considered to be the degradation of the tunneling junction resulting from the crystallinity and the As-rich surface of the LED.

Manago, Takashi; Sinsarp, Asawin; Akinaga, Hiro [Department of Electronics and Computer Science, Tokyo University of Science, Yamaguchi, 1-1-1 Daigaku-Dori, Sanyo-Onoda, Yamaguchi 756-0884 (Japan); Nanotechnology Research Institute (NRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan)

2007-10-15T23:59:59.000Z

344

GaN/Fe core/shell nanowires for nonvolatile spintronics on Si  

SciTech Connect

We explore the relationship between the structural and magnetic properties of GaN/Fe core/shell nanowires grown epitaxially on Si substrates. The magnetic properties are consistent with the coexistence of two magnetic contributions: a ferromagnetic response from the single-crystalline Fe particles formed at the nanowire tips, and a superparamagnetic response originating from the granular Fe clusters grown on the nanowire sidewalls, giving them a corncob-like morphology. We show that our interpretation of the origin of the magnetic behavior can be confirmed by the viscous decay of magnetic remanence in the nanowires. Ferromagnetic remanence is observed both parallel and perpendicular to the nanowire axis, making such structures appealing as high-density nonvolatile spintronic components on Si.

Gao Cunxu; Farshchi, Rouin; Roder, Claudia; Dogan, Pinar; Brandt, Oliver [Paul-Drude-Institut fuer Festkoerperelektronik, Hausvogteiplatz 5-7, D-10117 Berlin (Germany)

2011-06-15T23:59:59.000Z

345

Oil & Natural Gas Technology DOE Award No.: DE-FE0001243 Topical Report  

NLE Websites -- All DOE Office Websites (Extended Search)

FE0001243 FE0001243 Topical Report DEVELOPMENT OF CFD-BASED SIMULATION TOOLS FOR IN SITU THERMAL PROCESSING OF OIL SHALE/SANDS Submitted by: University of Utah Institute for Clean and Secure Energy 155 South 1452 East, Room 380 Salt Lake City, Utah 84112 Prepared for: United States Department of Energy National Energy Technology Laboratory February 2012 Office of Fossil Energy TOPICAL REPORT: DEVELOPMENT OF CFD_BASED SIMULATION TOOLS FOR IN SITU THERMAL PROCESSING OF OIL SHALE/SANDS Authors: Michal Hradisky and Philip J. Smith DOE Award No.: DE-FE0001243 Reporting Period: October 1, 2009 - September 30, 2011 Report Issued: February 2012 Submitted by: University of Utah Institute for Clean and Secure Energy 155 South 1452 East, Room 380

346

A Ni-Fe Layered Double Hydroxide-Carbon Nanotube Complex for Water Oxidation  

E-Print Network (OSTI)

Highly active, durable and cost-effective electrocatalysts for water oxidation to evolve oxygen gas hold a key to a range of renewable energy solutions including water splitting and rechargeable metal-air batteries. Here, we report the synthesis of ultrathin nickel iron layered double hydroxide nanoplates on mildly oxidized multi-walled carbon nanotubes. Incorporation of Fe into the nickel hydroxide induced the formation of NiFe-layered double hydroxide. The nanoplates were covalently attached to a network of nanotubes, affording excellent electrical wiring to the nanoplates. The ultra-thin Ni-Fe layered double hydroxide nanoplates/carbon nanotube complex was found to exhibit unusually high electro-catalytic activity and stability for oxygen evolution and outperformed commercial precious metal Ir catalysts.

Gong, Ming; Wang, Hailiang; Liang, Yongye; Wu, Justin Zachary; Zhou, Jigang; Wang, Jian; Regier, Tom; Wei, Fei; Dai, Hongjie

2013-01-01T23:59:59.000Z

347

Corrosion Study of Fe in a Stagnant Liquid Pb by Molecular Dynamics Methods  

Science Conference Proceedings (OSTI)

It has been investigated theoretically the corrosion phenomena of iron (Fe) in liquid lead (Pb) by molecular dynamics methods. The corrosion phenomena was regarded as a diffusion process in which the Fe atoms of bulk material spreading into a liquid Pb. The D diffusion coefficient of the corrosion was calculated. We reported the self-diffusion coefficient of Fe in liquid Pb is D{sub MD} (750 deg.) = 2.59x10{sup -9}m{sup 2}/s. This is in the range of (1.31-5.75)x10{sup -9} m{sup 2}/s from literature and also closed to D{sub Robertson}(750 deg. C) = 2.74x10{sup -9} m{sup 2}/s based on the Robertson curve.

Arkundato, A. [Physics Dept, Faculty of Math. And Natural Sciences, Institut Teknologi Bandung, Indonesia Jl.Ganesha 10, Bandung 40132 (Indonesia); Physics Dept, Faculty of Math. And Natural Sciences, Universitas Jember (Indonesia); Suud, Zaki; Abdullah, Mikrajudin [Physics Dept, Faculty of Math. And Natural Sciences, Institut Teknologi Bandung, Indonesia Jl.Ganesha 10, Bandung 40132 (Indonesia)

2010-06-22T23:59:59.000Z

348

Structure determination of thin CoFe films by anomalous x-ray diffraction  

Science Conference Proceedings (OSTI)

This work reports on the investigation of structure-property relationships in thin CoFe films grown on MgO. Because of the very similar scattering factors of Fe and Co, it is not possible to distinguish the random A2 (W-type) structure from the ordered B2 (CsCl-type) structure with commonly used x-ray sources. Synchrotron radiation based anomalous x-ray diffraction overcomes this problem. It is shown that as grown thin films and 300 K post annealed films exhibit the A2 structure with a random distribution of Co and Fe. In contrast, films annealed at 400 K adopt the ordered B2 structure.

Gloskovskii, Andrei; Stryganyuk, Gregory; Ouardi, Siham [Institut fuer Anorganische und Analytische Chemie, Johannes Gutenberg-Universitaet, 55099 Mainz (Germany); Fecher, Gerhard H.; Felser, Claudia [Institut fuer Anorganische und Analytische Chemie, Johannes Gutenberg-Universitaet, 55099 Mainz (Germany); Max Planck Institute for Chemical Physics of Solids, D-01187 Dresden (Germany); Hamrle, Jaroslav; Pistora, Jaromir [Department of Physics and Nanotechnology Centre, VSB-Technical University of Ostrava, 70833 Ostrava (Czech Republic); Bosu, Subrojati; Saito, Kesami; Sakuraba, Yuya; Takanashi, Koki [Institute for Materials Research (IMR), Tohoku University, Sendai 980-8577 (Japan)

2012-10-01T23:59:59.000Z

349

Effect of Ni on Cu precipitation kinetics in \\alpha-Fe by AKMC study  

E-Print Network (OSTI)

The kinetics of coherent Cu rich precipitation in Fe-Cu and Fe-Cu-Ni alloys during thermal ageing have been modeled by Atomic Kinetic Monte Carlo method (AKMC). The AKMC is parameterized by existing ab-inito data to treat vacancy mediated diffusion which is depend on local atomic environment. A nonlinear semi-empirical time adjusting method is proposed to rescaled the MC time. The combined AKMC and time adjusting method give good agreement with experiments and other simulations, including advancement factor and the Cu cluster mobility. Simulations of ternary alloys reveal Ni has a temporal delay effect on Cu precipitation. This effect is caused by the decreasing diffusion coefficient of Cu clusters. And the reduction effect of diffusion coefficient weakens with cluster size. The simulations can be used to explain the experimental phenomenon that higher cluster number density formed during coasening stage in Fe-Cu-Ni alloys than corresponding binary alloy, which is related to cluster mobility.

Wang, Yi; Liu, Xiang Bing; Wang, Rong Shan; Wang, Jing Tao

2013-01-01T23:59:59.000Z

350

Proceedings of the AD HOC Workshop on Ceramics for Li/FeS{sub 2} batteries  

DOE Green Energy (OSTI)

Representatives from industry, the U.S. Advanced Battery Consortium (USABC), DOE, national laboratories, and other govt agencies met to develop recommendations and actions for accelerating the development of ceramic components critical to the successful introduction of the Li/FeS{sub 2} bipolar battery for electric vehicles. Most of the workshop is devoted to electrode materials, bipolar designs, separators, and bipolar plates. The bulk of this document is viewographs and is divided into: ceramics, USABC overview, SAFT`s Li/FeS{sub 2} USABC program, bipolar Li/FeS{sub 2} component development, design requirements for bipolar plates, separator design requirements, compatibility of ceramic insulators with lithium, characterization of MgO for use in separators, resistivity measurements of separators, sintered AlN separators for LiMS batteries, etc.

Not Available

1993-12-31T23:59:59.000Z

351

Spin excitations in K2Fe4+xSe5: Linear response approach  

Science Conference Proceedings (OSTI)

Using ab initio linear response techniques we calculate spin-wave spectra in K2Fe4+xSe5, and find them to be in excellent agreement with a recent experiment. The spectrum can be described reasonably well by a localized spin Hamiltonian restricted to first and second nearest neighbor couplings. We confirm that exchange coupling between nearest neighbor Fe magnetic moments is strongly anisotropic, and show directly that in the ideal system this anisotropy has an itinerant nature which can be imitated by introducing higher order terms in the effective localized spin Hamiltonian (biquadratic coupling). In the real system, structural relaxation provides an additional source of the exchange anisotropy of approximately the same magnitude. The dependence of spin-wave spectra on the filling of Fe vacancy sites is also discussed.

Ke, Liqin; van Schilfgaarde, Mark; Antropov, Vladimir

2012-07-17T23:59:59.000Z

352

LiFePO{sub 4}/gel/natural graphite cells for the BATT program  

DOE Green Energy (OSTI)

LiFePO{sub 4}/gel/natural graphite (NG) cells have been prepared and cycled under a fixed protocol for cycle and calendar life determination. Cell compression of 10 psi was found to represent an optimal balance between cell impedance and the first cycle losses on the individual electrodes with the gel electrolyte. Cells with a Li anode showed capacities of 160 and 78 mAh/g-LiFePO{sub 4} for C/25 and 2C discharge rates, respectively. Rapid capacity and power fade were observed in the LiFePO{sub 4}/gel/NG cells during cycling and calendar life studies. Diagnostic evaluations point to the consumption of cycleable Li though a side reaction as the reason for performance fade with minimal degradation of the individual electrodes.

Striebel, K.; Guerfi, A.; Shim, J.; Armand, M.; Gauthier, M.; Zaghib, K.

2002-10-29T23:59:59.000Z

353

L10 structure formation in slow-cooled Fe-Au nanoclusters  

Science Conference Proceedings (OSTI)

An ordered L10 structure has been formed in near-stoichiometric Fe-Au alloy nanoparticles. The L10 structure with a?=?0.367?nm and c?=?0.360?nm was observed in nanoclusters with diameters below 10?nm after slow cooling from 600?C. The stable L10 structure formed from a parent fcc solid solution phase observed in the as-formed clusters. The fcc phase has a lattice parameter of 0.417?nm, significantly expanded compared to both Au and ?-Fe. The saturation magnetization and coercivity of both fcc and L10 structures were much lower than expected considering Fe dilution effects suggesting competing ferromagnetic and anti-ferromagnetic ordering.

Mukherjee, P.; Zhang, Ying; Kramer, Matthew J.; Lewis, L.H.; Shield, J.E.

2012-05-23T23:59:59.000Z

354

Exchange Coupling Nanophase Fe-Pd Ferromagnets Through Solid State Transformation  

SciTech Connect

This study continues previous work on off stoichiometric Fe-Pd alloys using a combined reaction strategy during thermomechanical processing [1,2]. Severe plastic deformation of the initial disordered fcc gamma phase ( ), followed by heat treatment in the two phase field produces a nano-composite ferromagnet comprised of soft alpha-Fe/ferrite in a high-anisotropy L10 FePd matrix. The length scale and morphology of the transformation products have been characterized using x-ray diffraction, and scanning and transmission electron microscopy. The transformed microstructures exhibit strong texture retention similar to the stoichiometric alloy suggesting a massive ordering mode. The alloy has shown a proclivity to exchange couple at a length scale not in agreement with proposed theories of exchange coupling [3,4]. The magnetic properties were measured using standard vibrating sample magnetometry (VSM). This research has been supported by the National Science Foundation (NSF-DMR).

Shugart, Kathleen N. [University of Virginia, Charlottesville; Ludtka, Gerard Michael [ORNL; Ludtka, Gail Mackiewicz- [ORNL; Soffa, William A [University of Virginia

2011-01-01T23:59:59.000Z

355

NETL: News Release -DOE Selects Projects Totaling $12.4 Million Aimed at  

NLE Websites -- All DOE Office Websites (Extended Search)

1, 2011 1, 2011 DOE Selects Projects Totaling $12.4 Million Aimed at Increasing Domestic Energy Production While Enhancing Environmental Protection Focus is on Shale Gas, Enhanced Oil Recovery Washington, D.C. - A total of 11 research projects that will help find ways to extract more energy from unconventional oil and gas resources while reducing environmental risks have been selected totaling $12.4 million by the U.S. Department of Energy's (DOE) Office of Fossil Energy (FE). MORE INFO Link to RPSEA website The selections include $10.3 million for eight projects that will reduce the environmental risks of shale gas development while accelerating the application of new exploration and production technologies; and $2.1 million for three projects investigating innovative processes for

356

Title  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Oil & Natural Gas R&D Oil & Natural Gas R&D National Energy Technology Laboratory Office of Fossil Energy 2008 Annual Plan (Draft) EPACT 2005, Subtitle J, Section999 John R. Duda, Deputy Director Strategic Center for Natural Gas & Oil January 30, 2008 Strategic Center for Natural Gas and Oil 2008 Annual Plan (Draft) Development * RPSEA submitted Draft Annual Plan - November 14, 2007 - Modifications to 2007 plan * NETL developed the 2008 Annual Plan (Draft) - Federal Advisory Committees' recommendations - Program status and requirements - Complementary research plan * Submitted to HQ - December 11, 2007 - Incorporated comments from FE, et al * Sent to Federal Advisory Committees - January 9, 2008 Strategic Center for Natural Gas and Oil 2008 Annual Plan (Draft) General * "Ongoing activities"

357

Data:Fe7d98a8-f79f-44cf-93fe-5cf08de07c7d | Open Energy Information  

Open Energy Info (EERE)

a8-f79f-44cf-93fe-5cf08de07c7d a8-f79f-44cf-93fe-5cf08de07c7d No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Shelby Energy Co-op, Inc Effective date: 2011/06/01 End date if known: Rate name: Optional T-O-D Demand - Rate 22 Sector: Residential Description: Source or reference: http://www.shelbyenergy.com/yourelectricrate.html Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months): Service Voltage Minimum (V): Maximum (V): Character of Service Voltage Category: Phase Wiring: << Previous 1 2 3 Next >>

358

Data:Fe881325-eb71-45ad-a4cd-f2fe3c28f436 | Open Energy Information  

Open Energy Info (EERE)

325-eb71-45ad-a4cd-f2fe3c28f436 325-eb71-45ad-a4cd-f2fe3c28f436 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Orange County Rural E M C Effective date: 2012/01/01 End date if known: Rate name: Rate 101- 2012 Rate Schedule for Standard Service Sector: Residential Description: Wholesale Power Cost Tracker changes quarterly. Available to any member of the REMC located on its lines for standard service whose installed capacity does not exceed 50KVA. Source or reference: http://www.orangecountyremc.org/electricrates.html Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW):

359

Giant tunneling magnetoresistance up to 330% at room temperature in sputter deposited Co{sub 2}FeAl/MgO/CoFe magnetic tunnel junctions  

Science Conference Proceedings (OSTI)

Magnetoresistance ratio up to 330% at room temperature (700% at 10 K) has been obtained in a spin-valve-type magnetic tunnel junction (MTJ) consisting of a full-Heusler alloy Co{sub 2}FeAl electrode and a MgO tunnel barrier fabricated on a single crystal MgO (001) substrate by sputtering method. The output voltage of the MTJ at one-half of the zero-bias value was found to be as high as 425 mV, which is the largest reported to date in MTJs using Heusler alloy electrodes. The present finding suggests that Co{sub 2}FeAl may be one of the most promising candidates for future spintronics devices applications.

Wang Wenhong; Sukegawa, Hiroaki; Shan, Rong; Mitani, Seiji; Inomata, Koichiro [Magnetic Materials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba 305-0047 (Japan)

2009-11-02T23:59:59.000Z

360

Spin injection into semiconductors : the role of Fe/Al[sub x]Ga[sub 1-x]As interface  

SciTech Connect

The influence of the growth and post-growth annealing temperatures of Fe/Al{sub x}Ga{sub 1-x}As-based spin light-emitting diodes (LEDs) on the spin injection efficiency is discussed. The extent of interfacial reactions during molecular beam epitaxial growth of Fe on GaAs was determined from in-situ x-ray photoelectron spectroscopy studies. The Fe/GaAs interface results in {<=} 3 monolayers of reaction for Fe grown at -15 C. Intermediate growth temperatures (95 C) lead to {approx}5 monolayers of interfacial reactions, and high growth temperatures of 175 C lead to a {approx}9 monolayer thick reacted layer. Polarized neutron reflectivity was used to determine the interfacial magnetic properties of epitaxial Fe{sub 0.5}Co{sub 0.5}/GaAs heterostructures grown under identical conditions. No interfacial magnetic dead layer is detected at the interface for Fe{sub 0.5}Co{sub 0.5} films grown at -15 C, an {approx}6 {angstrom} thick nonmagnetic layer formed at the interface for 95 C growth and an {approx}5 {angstrom} thick magnetic interfacial reacted layer formed for growth at 175 C. Spin injection from Fe contacts into spin LEDs decreases sharply when reactions result in a nonmagnetic interfacial layer. Significant spin injection signals are obtained from Fe contacts grown between -5 C and 175 C, although the higher Fe growth temperatures resulted in a change in the sign of the spin polarization. Post-growth annealing of the spin LEDs is found to increase spin injection efficiency for low Fe growth temperatures and to a sign reversal of the spin polarization for high growth temperature (175 C). An effective Schottky barrier height increase indicates that post growth annealing modifies the Fe/Al{sub x}Ga{sub 1-x}As interface.

Fitzsimmons, M. R. (Michael R.); Park, S. (Sungkyun)

2004-01-01T23:59:59.000Z

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361

U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Natural Gas Imports and Exports Form FE-746R Expiration Date: 7/31/2016 AVG Burden: 3.0 hours Month/Year:_________________ Importer/Exporter (Authorization Holder):________________________________________________________ E-Mail Address:_____________________________ Address:____________________________________________________________________ Preparer of Report:__________________________ Telephone No.:___________________ FAX No.:______________________ Gas Sales Made Pursuant to DOE Opinion and Order No.________, under FE Docket No._______________. (1) (2) (3) (4) (5) (6) (7) (8) (9) Origin & Final Destination Country (one country) Transit Country Initial Border Crossing Point Foreign Pipeline at Initial Border Crossing U.S. Pipeline at Initial Border Crossing Final Border Crossing

362

U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Natural Gas Imports and Exports Form FE-746R Expiration Date: 7/31/2016 AVG Burden: 3.0 hours Month/Year:_________________ Exporter (Authorization Holder):__________________________________________________________________ E-Mail Address:_____________________________ Address:__________________________________________________________ Preparer of Report:__________________________ Telephone No.:______________________ FAX No.:____________________ Gas Sales Made Pursuant to DOE Opinion and Order No.________, under FE Docket No._______________. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) Departure Date Country of Destination Supplier(s) Cargo Volume (Mcf) ISO Container Loading Facility & Location Mode(s) of Transport From ISO Container Loading Facility to Export Port U.S. Export Port

363

The effect of chromium on the weldability and microstructure of Fe-Cr-Al weld cladding  

Science Conference Proceedings (OSTI)

Iron-aluminum-based weld cladding is currently being considered as corrosion-resistant coatings for boiler tubes in coal-fired power plants. Although these alloys could potentially be good coating candidates due to their excellent high-temperature corrosion resistance, Fe-Al weld cladding is susceptible to cracking due to hydrogen embrittlement at elevated aluminum concentrations. Additions of chromium to these iron-aluminum alloys have been shown to improve the corrosion resistance of the alloys and could potentially increase the lifetimes of the coatings. The current study investigated the effect of chromium on the hydrogen cracking susceptibility of Fe-Al weld cladding.

Regina, J.R.; Dupont, J.N.; Marder, A.R. [ExxonMobil, Houston, TX (United States). Welding & Fabrication

2007-06-15T23:59:59.000Z

364

Magnetic anisotropy engineering: Single-crystalline Fe films on ion eroded ripple surfaces  

SciTech Connect

We present a method to preselect the direction of an induced in-plane uniaxial magnetic anisotropy (UMA) in thin single-crystalline Fe films on MgO(001). Ion beam irradiation is used to modulate the MgO(001) surface with periodic ripples on the nanoscale. The ripple direction determines the orientation of the UMA, whereas the intrinsic cubic anisotropy of the Fe film is not affected. Thus, it is possible to superimpose an in-plane UMA with a precision of a few degrees - a level of control not reported so far that can be relevant for example in spintronics.

Liedke, M. O.; Koerner, M.; Lenz, K.; Grossmann, F.; Facsko, S.; Fassbender, J. [Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e.V., P.O. Box 510119, 01314 Dresden (Germany)

2012-06-11T23:59:59.000Z

365

U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Natural Gas Imports and Exports Form FE-746R Expiration Date: 7/31/2016 AVG Burden: 3.0 hours Month/Year:_________________ Importer (Authorization Holder):_____________________________________________________________ E-Mail Address:_____________________________ Address:_____________________________________________________________________ Preparer of Report:__________________________ Telephone No.:______________________ FAX No.:__________________________ Gas Sales Made Pursuant to DOE Opinion and Order No.________, under FE Docket No._______________. (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) Delivery Date Country of Origin Supplier(s) Cargo Volume (Mcf) U.S. Receiving Terminal Landed Price (US$/MMBtu) LNG Vessel Name Specific Purchaser / End User Markets Served - U.S. Area*

366

U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Natural Gas Imports and Exports Form FE-746R Expiration Date: 7/31/2016 AVG Burden: 3.0 hours Month/Year:_________________ Importer (Authorization Holder):_________________________________________________________ E-Mail Address:_____________________________ Address:______________________________________________________________ Preparer of Report:__________________________ Telephone No.:___________________ FAX No.:___________________ Gas Sales Made Pursuant to DOE Opinion and Order No.________, under FE Docket No._______________. (1) (2) (3) (4) (5) (6) (7) (8) (9) Country of Origin Point of ENTRY into U.S. U.S. Receiving Facility Volume (Mcf at U.S. Border) Price at U.S. Border (US$/MMBtu) Supplier(s) LNG Truck Transporting Company Markets Served - U.S. Area* Estimated Duration

367

Carbon Surface Layers on a High-Rate LiFePO4  

DOE Green Energy (OSTI)

Transmission electron microscopy (TEM) was used to image particles of a high-rate LiFePO4 sample containing a small amount of in situ carbon. The particle morphology is highly irregular, with a wide size distribution. Nevertheless, coatings, varying from about 5-10 nm in thickness, could readily be detected on surfaces of particles as well as on edges of agglomerates. Elemental mapping using Energy Filtered TEM (EFTEM) indicates that these very thin surface layers are composed of carbon. These observations have important implications for the design of high-rate LiFePO4 materials in which, ideally, a minimal amount of carbon coating is used.

Gabrisch, Heike; Wilcox, James D.; Doeff, Marca M.

2005-09-06T23:59:59.000Z

368

A proposal to search for a monochromatic component of solar axions using $^{57}$Fe  

E-Print Network (OSTI)

A new experimental scheme is proposed to search for almost monochromatic solar axions, whose existence has not been discussed heretofore. The axions would be produced when thermally excited $^{57}$Fe in the sun relaxes to its ground state and could be detected via resonant excitation of the same nuclide in a laboratory. A detailed calculation shows that the rate of the excitation is up to order 10 events/day/kg-$^{57}$Fe. The excitation can be detected efficiently using bolometers or liquid scintillators.

Shigetaka Moriyama

1995-04-18T23:59:59.000Z

369

A proposal to search for a monochromatic component of solar axions using $^{57}$Fe  

E-Print Network (OSTI)

A new experimental scheme is proposed to search for almost monochromatic solar axions, whose existence has not been discussed heretofore. The axions would be produced when thermally excited ^{57}Fe in the sun relaxes to its ground state and could be detected via resonant excitation of the same nuclide in a laboratory. A detailed calculation shows that the rate of the excitation is up to order 10 events/day/kg-^{57}Fe. The excitation can be detected efficiently using bolometers or liquid scintillators.

Moriyama, S

1995-01-01T23:59:59.000Z

370

U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Energy Natural Gas Imports and Exports Form FE-746R Expiration Date: 7/31/2016 AVG Burden: 3.0 hours Month/Year:_______________ Exporter (Authorization Holder):____________________________________________________________________ E-Mail Address:_____________________________ Address:___________________________________________________________ Preparer of Report:__________________________ Telephone No.:_____________________ FAX No.:_____________________ Gas Sales Made Pursuant to DOE Opinion and Order No.________, under FE Docket No._______________. (1) (2) (3) (4) (5) (6) (7) (8) Country of Destination Point of EXIT from U.S. Volume (Mcf at U.S. Border) Avg. Price at U.S. Border (U.S.$/MMBtu) Supplier(s) Foreign Pipeline at U.S. Border Point U.S. Pipeline at U.S. Border Point

371

Neutrino Energy Loss Rates due to {sup 54,55,56}Fe in Stellar Environment  

Science Conference Proceedings (OSTI)

Neutrino energy loss rates are required as a key nuclear physics input parameter in the simulation codes of core-collapse supernovae of massive stars. The weak interaction rates due to isotopes of iron, {sup 54,55,56}Fe, are considered to play an important role during the presupernova evolution of massive stars. Proton-neutron quasi-particle random phase approximation (pn-QRPA) theory has recently being used for a microscopic calculation of stellar weak interaction rates of iron isotopes with success. The calculation of neutrino energy loss rates due to {sup 54,55,56}Fe is presented along with a comparison with large scale shell model results.

Nabi, Jameel-Un [Faculty of Engineering Sciences, GIK Institute of Engineering Sciences and Technology, Topi 23640, Swabi, NWFP (Pakistan)

2010-06-01T23:59:59.000Z

372

In situ Fe K-edge X-ray absorption fine structure of a pyrite electrode in a Li/polyethylene oxide (LiClO{sub 4})/FeS{sub 2} battery environment  

DOE Green Energy (OSTI)

Electronic and structural properties of materials generated by the reduction and subsequent oxidation of pyrite in a lithium-based solid polymer electrolyte have been examined by in situ fluorescence Fe K-edge X-ray absorption fine structure (XAFS) in a FeS{sub 2}/Li battery environment. The XAFS results obtained are consistent with the formation of metallic iron as one of the products of the full (4-electron) discharge, in agreement with information reported in other laboratories. Extended X-ray absorption fine structure (EXAFS) data reveal that a subsequent 2-electron or 4-electron recharge generates a species with a Fe-S bond distance identical to that of pyrite, d(Fe-S) = 2.259 {angstrom}, with no other clearly detectable interactions due to more distant atoms. Based on the similarities between the metrical parameters and other features in the X-ray absorption near edge structure (XANES), the ferrous sites in these species appear to be tetrahedrally coordinated, as in chalcopyrite (CuFeS{sub 2}), for which d(Fe-S) is 2.257 {angstrom}, and, thus, different than in Li{sub 2} FeS{sub 2}, a material that exhibits longer Fe-S distances.

Totir, D.; Bae, I.T.; Hu, Y.; Scherson, D.A. [Case Western Reserve Univ., Cleveland, OH (United States). Dept. of Chemistry; Antonio, M.R. [Argonne National Lab., IL (United States). Chemistry Div.

1996-12-31T23:59:59.000Z

373

NMR Study in the Iron-Selenide Rb0:74Fe1:6Se2: Determination of the Superconducting Phase as Iron Vacancy-Free Rb0:3Fe2Se2  

E-Print Network (OSTI)

NMR Study in the Iron-Selenide Rb0:74Fe1:6Se2: Determination of the Superconducting Phase as Iron magnetic resonance (NMR) experiments on Rb0:74Fe1:6Se2 reveal clearly distinct spectra originating from a majority antiferromagnetic (AF) and a minority metallic-superconducting (SC) phase. The very narrow NMR

Paris-Sud 11, Université de

374

Magnetron-sputter deposition of Fe{sub 3}S{sub 4} thin films and their conversion into pyrite (FeS{sub 2}) by thermal sulfurization for photovoltaic applications  

SciTech Connect

The authors report on the fabrication of FeS{sub 2} (pyrite) thin films by sulfurizing Fe{sub 3}S{sub 4} that were deposited by direct current magnetron sputtering at room temperature. Under the selected sputtering conditions, Fe{sub 3}S{sub 4} nanocrystal films are obtained and the nanocrystals tend to locally cluster and closely pack into ricelike nanoparticles with an increase in film thickness. Meanwhile, the film tends to crack when the film thickness is increased over {approx}1.3 {mu}m. The film cracking can be effectively suppressed by an introduction of a 3-nm Cu intermediate layer prior to Fe{sub 3}S{sub 4} deposition. However, an introduction of a 3-nm Al intermediate layer tends to enhance the film cracking. By post-growth thermal sulfurization of the Fe{sub 3}S{sub 4} thin films in a tube-furnace, FeS{sub 2} with high phase purity, as determined by using x ray diffraction, is obtained. Optical absorption spectroscopy was employed to characterize the resultant FeS{sub 2} thin films, which revealed two absorption edges at 0.9 and 1.2 eV, respectively. These two absorption edges are assigned to the direct bandgap (0.9 eV) and the indirect allowed transitions (1.2 eV) of FeS{sub 2}, respectively.

Liu Hongfei; Chi Dongzhi [Institute of Materials Research and Engineering (IMRE), A-STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602 (Singapore)

2012-07-15T23:59:59.000Z

375

Temperature and pressure dependence of the Fe-specific phonon density of states in Ba(Fe1-xCox)2As2  

Science Conference Proceedings (OSTI)

The {sup 57}Fe-specific phonon density of states (DOS) of Ba(Fe{sub 1-x}Co{sub x}){sub 2}As{sub 2} single crystals (x=0.0, 0.08) was measured at cryogenic temperatures and at high pressures with nuclear-resonant inelastic x-ray scattering. Measurements were conducted for two different orientations of the single crystals, yielding the orientation projected {sup 57}Fe-phonon density of states for phonon polarizations in-plane and out-of-plane with respect to the basal plane of the crystal structure. In the tetragonal phase at 300 K, a clear stiffening was observed upon doping with Co. Increasing pressure to 4 GPa caused a marked increase of phonon frequencies, with the doped material still stiffer than the parent compound. Upon cooling, both the doped and undoped samples showed a stiffening and the parent compound exhibited a discontinuity across the magnetic and structural phase transitions. These findings are generally compatible with the changes in volume of the system upon doping, increasing pressure, or increasing temperature, but an extra softening of high-energy modes occurs with increasing temperature. First-principles computations of the phonon DOS were performed and showed an overall agreement with the experimental results, but underestimate the Grueneisen parameter. This discrepancy is explained in terms of a magnetic Grueneisen parameter, causing an extra phonon stiffening as magnetism is suppressed under pressure.

Delaire, O [Oak Ridge National Laboratory (ORNL); Lucas, M S [Oak Ridge National Laboratory (ORNL); Dos santos, A M [Oak Ridge National Laboratory (ORNL); Subedi, Alaska P [ORNL; Safa-Sefat, Athena [ORNL; McGuire, Michael A [ORNL; Mauger, L [W. M. Keck Laboratory, Pasadena, CA; Munoz, J A [W. M. Keck Laboratory, Pasadena, CA; Tulk, Christopher A [ORNL; Xiao, Y [HPCAT Geophysical Lab, Argonne, IL; Somayazulu, M [Geophysical Lab, Washington, D. C.; Zhao, J. Y. [Argonne National Laboratory (ANL); Sturhahn, W [Argonne National Laboratory (ANL); Alp, E. E. [Argonne National Laboratory (ANL); Singh, David J [ORNL; Sales, Brian C [ORNL; Mandrus, David [ORNL; Egami, Takeshi [ORNL

2009-01-01T23:59:59.000Z

376

High-quality epitaxial CoFe/Si(111) heterostructures fabricated by low-temperature molecular beam epitaxy  

SciTech Connect

We demonstrate atomically controlled heterojunctions consisting of ferromagnetic CoFe alloys and silicon (Si) using low-temperature molecular beam epitaxy with a good atomic matching at the (111) plane. The saturation magnetization of the CoFe layers grown reaches {approx}85% of the value of bulk samples reported so far, and can be systematically controlled by tuning the ratio of Co to Fe, indicating that the silicidation reactions between CoFe and Si are suppressed and the heterojunctions are very high quality. We find that the Schottky barrier height of the high-quality CoFe/Si(111) junctions is unexpectedly low compared to the previous data for other metal/Si ones, implying the reduction in the Fermi-level-pinning effect. We can expand the available high-quality ferromagnet/Si heterostructures in the field of Si-based spintronics.

Maeda, Y.; Yamada, S.; Ando, Y.; Yamane, K.; Miyao, M. [Department of Electronics, Kyushu University, 744 Motooka, Fukuoka 819-0395 (Japan); Hamaya, K. [Department of Electronics, Kyushu University, 744 Motooka, Fukuoka 819-0395 (Japan); PRESTO, Japan Science and Technology Agency, Sanbancho, Tokyo 102-0075 (Japan)

2010-11-08T23:59:59.000Z

377

(001) textured L1{sub 0}-FePt pseudo spin valve with TiN spacer  

Science Conference Proceedings (OSTI)

TiN was investigated as a potential spacer material in L1{sub 0}-FePt based pseudo spin valves (PSV). PSVs with the structure MgO/L1{sub 0}-Fe{sub 50}Pt{sub 50} (20 nm)/TiN (5 nm)/L1{sub 0}-Fe{sub 50}Pt{sub 50} (x nm) were fabricated, where x was varied from 5 to 20 nm. The highest giant magnetoresistance (GMR) ratio of 0.61% was obtained for the PSV with a top L1{sub 0}-FePt thickness of 20 nm. Contributions to the GMR arose from both the spin dependent scattering at the FePt/TiN interfaces and domain wall resistivity. Magnon magnetoresistance was also observed in the fabricated PSVs.

Ho, P. [Department of Materials Science and Engineering, National University of Singapore, 117576 Singapore (Singapore) and Data Storage Institute, Agency of Science, Technology and Research (A-STAR), 117608 Singapore (Singapore); Han, G. C. [Data Storage Institute, Agency of Science, Technology and Research (A-STAR), 117608 Singapore (Singapore); He, K. H.; Chow, G. M.; Chen, J. S. [Department of Materials Science and Engineering, National University of Singapore, 117576 Singapore (Singapore)

2011-12-19T23:59:59.000Z

378

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 13, PAGES 1807-1810, July 1, 2000 Characteristics of Fe Ablation Trails Observed During  

E-Print Network (OSTI)

shower with an air- borne Fe lidar aboard the NSF/NCAR Electra aircraft over Okinawa. The average, 1999]. Our group deployed an airborne zenith pointing Fe lidar in Okinawa (26.3 N, 127.7 E) as part

Chu, Xinzhao

379

Late-Blooming Phase Investigation in an Ion Irradiated Fe-1wt.%Mn ...  

Science Conference Proceedings (OSTI)

Presentation Title, Late-Blooming Phase Investigation in an Ion Irradiated Fe-1wt. ... Experimental Analysis and Computational Modeling of Temperature Dependent Cyclic Plastic ... Gen IV Materials (ASME-DOE Project) High- Temperature Corrosion of YSZ Plasma-Sprayed on Nickel-Alloys in Molten Chloride Salts.

380

Interplay between Superconductivity and Magnetism in Fe1-xPdxTe  

Science Conference Proceedings (OSTI)

The love/hate relationship between superconductivity and magnetic ordering has fascinated the condensed matter physics community for a century. In the early days, magnetic impurities doped into a superconductor were found to quickly suppress superconductivity. Later, a variety of systems, such as cuprates, heavy fermions and Fe pnictides, show superconductivity in a narrow region near the border to antiferromagnetism (AFM) as a function of pressure or doping. On the other hand, the coexistence of superconductivity and ferromagnetic (FM) or AFM ordering is found in a few compounds (RRh4B4 (R = Nd, Sm, Tm, Er), R'Mo6X8 (R' = Tb, Dy, Er, Ho, and X = S, Se), UMGe (M = Ge, Rh, Co), CeCoIn5, EuFe2(As1-xPx)2 etc.), providing evidence for their compatibility. Here, we present a third situation, where superconductivity coexists with FM and near the border of AFM in Fe1-xPdxTe. The doping of Pd for Fe gradually suppresses the first-order AFM ordering at temperature TN/S, and turns into short-range (SR) AFM correlation with a characteristic peak in magnetic susceptibility at T'N. Superconductivity sets in when T'N reaches zero. However, there is a gigantic ferromagnetic dome imposed in the superconducting-AFM (SR) crossover regime. Such a system is ideal for studying the interplay between superconductivity and two types of magnetic interactions (FM and AFM).

Karki, A B [Louisiana State University; Garlea, Vasile O [ORNL; Custelcean, Radu [ORNL; Stadler, S. [Louisiana State University; Plummer, E. W. [Louisiana State University; Jin, Rongying [Louisiana State University

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
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381

Method for improving voltage regulation of batteries, particularly Li/FeS.sub.2 thermal batteries  

DOE Patents (OSTI)

Batteries are improved, especially with respect to voltage regulation properties, by employing as anode and cathode compositions, those which fall in a thermodynamically invariant region of the metallurgical phase diagram of the combination of the constituent components. The invention is especially useful in the Li/FeS.sub.2 system.

Godshall, Ned A. (Albuquerque, NM)

1988-01-01T23:59:59.000Z

382

Method for improving voltage regulation of batteries, particularly Li/FeS/sub 2/ thermal batteries  

DOE Patents (OSTI)

Batteries are improved, especially with respect to voltage regulation properties, by employing as anode and cathode compositions, those which fall in a thermodynamically invariant region of the metallurgical phase diagram of the combination of the constituent components. The invention is especially useful in the Li/FeS/sub 2/ system.

Godshall, N.A.

1986-06-10T23:59:59.000Z

383

Effects of Fe2+ on the Anaerobic Digestion of Chicken Manure: A Batch Study  

Science Conference Proceedings (OSTI)

Trace elements are considered to be essential for anaerobic process. Laboratory-scale batch studies were undertaken to evaluate the effect of Fe2+on the biogas production from chicken manure at mesophilic condition (37 1C). The biogas production ... Keywords: anaerobic digestion, chicken manure, dynamics, iron, stimulation and inhibition

Zhang Wanqin; Guo Jianbin; Wu Shubiao; Dong Renjie; Zhou Jie; Lang Qianqian; Li Xin; Lv Tao; Pang Changle; Chen Li; Wang Baozhi

2012-07-01T23:59:59.000Z

384

Effect of solution hardening on the shape memory effect of Fe-Mn based alloys  

SciTech Connect

Fe-high Mn-Si alloys, which undergo {gamma} (fcc) to {var_epsilon} (hcp) martensitic transformation, exhibit a pronounced shape memory effect. The origin of shape memory effect of these alloys is the reversion of stress-induced {var_epsilon} martensite. A shape change must hence be accomplish3ed by stress-induced martensitic transformation without permanent slip in austenite ({gamma}) in order to obtain a good shape memory effect. It is clear that the intrusion of permanent slip can be suppressed by increasing the strength of austenite and by decreasing the applied stress required for a shape change due to stress-induced martensitic transformation. It has been reported that the addition of the interstitial elements of C and N as well as the substitutional elements of Mo and V increases the 0.2% proof stress of austenite in Fe-high Mn alloys. However, there have been few studies on the effect of these alloying elements on the shape memory effect of Fe-high Mn based alloys. In the present study, it was aimed to improve the shape memory effect of Fe-high Mn based alloys by the strengthening of austenite through solution hardening due to C and Mo.

Tsuzaki, K.; Natsume, Y.; Maki, T. [Kyoto Univ. (Japan). Dept. of Materials Science and Engineering; Tomota, Y. [Ibaraki Univ., Hitachi (Japan)

1995-10-01T23:59:59.000Z

385

Temperature Dependence of Aliovalent-vanadium Doping in LiFePO4 Cathodes  

Science Conference Proceedings (OSTI)

Vanadium-doped olivine LiFePO4 cathode materials have been synthesized by a novel low-temperature microwave-assisted solvothermal (MW-ST) method at 300 oC. Based on chemical and powder neutron/X-ray diffraction analysis, the compositions of the synthesized materials were found to be LiFe1-3x/2Vx x/2PO4 (0 x 0.2) with the presence of a small number of lithium vacancies charge-compensated by V4+, not Fe3+, leading to an average oxidation state of ~ 3.2+ for vanadium. Heating the pristine 15 % V-doped sample in inert or reducing atmospheres led to a loss of vanadium from the olivine lattice with the concomitant formation of a Li3V2(PO4)3 impurity phase; after phase segregation, a partially V-doped olivine phase remained. For comparison, V-doped samples were also synthesized by conventional ball milling and heating, but only ~ 10 % V could be accommodated in the olivine lattice in agreement with previous studies. The higher degree of doping realized with the MW-ST samples demonstrates the temperature dependence of the aliovalent-vanadium doping in LiFePO4.

Harrison, Katharine L [University of Texas at Austin; Bridges, Craig A [ORNL; Paranthaman, Mariappan Parans [ORNL; Idrobo Tapia, Juan C [ORNL; Manthiram, Arumugam [University of Texas at Austin; Goodenough, J. B. [University of Texas at Austin; Segre, C [Illinois Institute of Technology; Katsoudas, John [Illinois Institute of Technology; Maroni, V. A. [Argonne National Laboratory (ANL)

2013-01-01T23:59:59.000Z

386

Cluster formula of Fe-containing Monel alloys with high corrosion-resistance  

SciTech Connect

The cluster-plus-glue-atom model is applied in the composition interpretation of Monel alloys. This model considers ideal atomic nearest neighbor configurations among the constituent elements and has been used in understanding compositions of complex alloys like quasicrystals, amorphous alloys, and cupronickels. According to this model, any structure can be expressed by cluster formula [cluster](glue atom){sub x}, x denoting the number of glue atoms matching one cluster. According to this model, two groups of experimental composition series [Fe{sub 1}Ni{sub 12}]Cu{sub x} and [Fe{sub y}Ni{sub 12}]Cu{sub 5} were designed which fell close to conventional Fe-containing Monel alloys. The designed alloys after solution treatment plus water quenching, are monolithic FCC Ni-based solid solutions. Among them, the [Fe{sub 1}Ni{sub 12}]Cu{sub 5} alloy has the highest corrosion resistance in simulated sea water, and its performance is superior to that of industrial Monel 400 alloy. - Highlights: Black-Right-Pointing-Pointer A stable solid solution model is proposed using our 'cluster-plus-glue-atom model'. Black-Right-Pointing-Pointer This model is used to develop Monel corrosion resistant alloys. Black-Right-Pointing-Pointer Single FCC structure is easily retained. Black-Right-Pointing-Pointer The alloys show good corrosion properties. Black-Right-Pointing-Pointer This work contributes to the general understanding of engineering alloys.

Li Baozeng; Gu Junjie [Key Lab of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Wang Qing, E-mail: wangq@dlut.edu.cn [Key Lab of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Ji Chunjun [College of Energy Source and Power, Dalian University of Science and Technology, Dalian, 116024 (China); Wang Yingmin; Qiang Jianbing [Key Lab of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Dong Chuang, E-mail: dong@dlut.edu.cn [Key Lab of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China)

2012-06-15T23:59:59.000Z

387

Doped LiFePO? cathodes for high power density lithium ion batteries  

E-Print Network (OSTI)

Olivine LiFePO4 has received much attention recently as a promising storage compound for cathodes in lithium ion batteries. It has an energy density similar to that of LiCoO 2, the current industry standard for cathode ...

Bloking, Jason T. (Jason Thompson), 1979-

2003-01-01T23:59:59.000Z

388

Local Structural Investigation of SmFeAsO1?xFx High Temperature Superconductors  

SciTech Connect

A strong revitalization of the field of high temperature superconductivity (HTSC) has been induced recently by the discovery of T{sub C} around 26 K in F-doped LaFeAsO iron pnictides. Starting from this discovery, a huge amount of experimental data have been accumulated. This important corpus of results will allow the development of suitable theoretical models aimed at describing the basic electronic structure properties and nature of superconducting states in these fascinating new systems. A close correlation between structural features and physical properties of the normal and superconducting states has already been demonstrated in the current literature. Advanced theoretical models are also based on the close correlation with structural properties and in particular with the Fe-As tetrahedral array. As for other complex materials, a deeper understanding of their structure-properties correlation requires a full knowledge of the atomic arrangement within the structure. Here we report an investigation of the local structure in the SmFeAsO{sub 1-x}F{sub x} system carried out by means of x-ray total scattering measurements and pair distribution function analysis. The results presented indicate that the local structure of these HTSC significantly differs from the average structure determined by means of traditional diffraction techniques, in particular the distribution of Fe-As bond lengths. In addition, a model for describing the observed discrepancies is presented.

Billinge, S.J.; Malavasi, L.; Artioli, G.A.; Kim. H.; Maroni, B.; Joseph, B.; Ren, Y.; Proffen, T.

2011-06-10T23:59:59.000Z

389

InFeRno: an intelligent framework for recognizing pornographic web pages  

Science Conference Proceedings (OSTI)

In this work we present InFeRno, an intelligent web pornography elimination system, classifying web pages based solely on their visual content. The main characteristics of our system include: (i) a powerful vector space with a small but sufficient number ...

Sotiris Karavarsamis; Nikos Ntarmos; Konstantinos Blekas

2011-09-01T23:59:59.000Z

390

Relation between thermal expansion and interstitial formation energy in pure Fe and Cr  

E-Print Network (OSTI)

Relation between thermal expansion and interstitial formation energy in pure Fe and Cr Janne potentials give lower interstitial formation energy, but predict too small thermal expansion. We also show vacancy activation energy. Thermal expansion coefficients as function of temperature are displayed in Fig

391

High-Strength / High Alkaline Resistant Fe-Phosphate Glass Fibers as Concrete Reinforcement  

SciTech Connect

Calcium-iron-phosphate glasses were developed whose chemical durabilities in alkaline solutions (pH 13) were comparable or superior to those of commercial alkaline-resistant (AR) silica-based glasses. However, the tensile strength of Ca-Fe-phosphate fibers, after being exposed to alkaline environments, including wet Portland cement pastes, is lower than that of current AR silicate fibers. Another series of Ca-Fe-phosphate glasses were developed with excellent chemical durability in strong acidic solutions (H2SO4, HF), indicating potential applications where silica-based fibers degrade very quickly, including E-glass. The new Ca-Fe-phosphate glasses can be melted and processed 300 to 500C lower than silica-based glasses. This offers the possibility of manufacturing glass fibers with lower energy costs by 40-60% and the potential to reduce manufacturing waste and lower gas emissions. It was found that Ca-Fe-phosphate melts can be continuously pulled into fibers depending on the slope of the viscosity-temperature curve and with viscosity ~100 poise, using multi-hole Pt/Rh bushings.

Mariano Velez

2008-03-31T23:59:59.000Z

392

Studies of switching field and thermal energy barrier distributions in a FePt nanoparticle system  

E-Print Network (OSTI)

Studies of switching field and thermal energy barrier distributions in a FePt nanoparticle system X dependence of the thermal stability factor, the width of the thermal energy barrier distribution- ropy energy distribution and the interaction and the thermal energy barrier distribution determined

Laughlin, David E.

393

FeAl and Mo-Si-B Intermetallic Coatings Prepared by Thermal Spraying  

SciTech Connect

FeAl and Mo-Si-B intermetallic coatings for elevated temperature environmental resistance were prepared using high-velocity oxy-fuel (HVOF) and air plasma spray (APS) techniques. For both coating types, the effect of coating parameters (spray particle velocity and temperature) on the microstructure and physical properties of the coatings was assessed. Fe-24Al (wt.%) coatings were prepared using HVOF thermal spraying at spray particle velocities varying from 540 m/s to 700 m/s. Mo-13.4Si-2.6B coatings were prepared using APS at particle velocities of 180 and 350 m/s. Residual stresses in the HVOF FeAl coatings were compressive, while stresses in the APS Mo-Si-B coatings were tensile. In both cases, residual stresses became more compressive with increasing spray particle velocity due to increased peening imparted by the spray particles. The hardness and elastic moduli of FeAl coatings also increased with increasing particle velocity, again due to an increased peening effect. For Mo-Si-B coatings, plasma spraying at 180 m/s resulted in significant oxidation of the spray particles and conversion of the T1 phase into amorphous silica and {alpha}-Mo. The T1 phase was retained after spraying at 350 m/s.

Totemeier, T.C.; Wright, R.N.; Swank, W.D.

2003-04-22T23:59:59.000Z

394

The field emission properties of graphene aggregates films deposited on Fe-Cr-Ni alloy substrates  

Science Conference Proceedings (OSTI)

The graphene aggregates films were fabricated directly on Fe-Cr-Ni alloy substrates by microwave plasma chemical vapor deposition system (MPCVD). The source gas was a mixture of H2 and CH4 with flow rates of 100 sccm and 12 sccm, ...

Zhanling Lu; Wanjie Wang; Xiaotian Ma; Ning Yao; Lan Zhang; Binglin Zhang

2010-01-01T23:59:59.000Z

395

An efficient FE model based on combined theory for the analysis of soft core sandwich plate  

Science Conference Proceedings (OSTI)

An efficient C0 continuous finite element (FE) model is developed based on combined theory (refine higher order shear deformation theory (RHSDT) and least square error (LSE) method) for the static analysis of soft core sandwich plate. In this ... Keywords: Composites, Finite element, Laminate, Plates, Sandwich materials

Ravi Prakash Khandelwal; Anupam Chakrabarti; Pradeep Bhargava

2013-05-01T23:59:59.000Z

396

Investigation of primary Li-Si/FeS/sub 2/ cells  

DOE Green Energy (OSTI)

The factors that limit the performance of thermally activated Li-Si/FeS/sub 2/ batteries were defined through the use of electrochemical characterization tests and post-test examinations. For the characterization tests, 82 individual cells were instrumented with multiple voltage sensors and discharged under isothermal and isobaric conditions. The voltage data for the sensors were recorded to determine the ohmic and electrochemical impedances of each cell component at different levels of discharge. The data analysis completed to date has demonstrated that this approach can successfully differentiate the influence of various operating parameters (e.g., temperature, current density), electrode structures (e.g., FeS/sub 2/ particle size), and additives on cell capacity, specific energy, and power capability. Thirty cells selected from these tests and additional tests at SNL were examined using optical and scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. These analyses documented microstructural and compositional changes in the active materials and electrolyte. In general, the electrochemical impedance of the FeS/sub 2/ electrode limited cell performance. Several methods (including use of fine FeS/sub 2/ particle size, graphite additions, and higher operating temperatures) produced measurable reductions in this impedance and yielded significant improvements in specific energy and power. Additions of KCl to the negative electrode extended the low-temperature capacity of this electrode by counterbalancing gradients in electrolyte composition that develop during discharge.

Redey, L.; Smaga, J.A.; Battles, J.E.; Guidotti, R.

1987-04-01T23:59:59.000Z

397

Probing High-Velocity Transient-Field Strength Using Heavy-ions Traversing Fe and Gd  

SciTech Connect

The transient field strength for {sup 76}Ge ions, passing through iron and gadolinium layers at velocities approxZv{sub 0}, has been measured. Although a sizeable value has been obtained for Gd, a vanishing strength has been observed in Fe.

Fiori, E.; Georgiev, G.; Cabaret, S.; Lozeva, R. [CSNSM, CNRS/IN2P3, Universite Paris-Sud 11, UMR8609, F-91405 ORSAY-Campus (France); Stuchbery, A. E. [Department of Nuclear Physics, Australian National University, Canberra (Australia); Jungclaus, A.; Modamio, V.; Walker, J. [Instituto de Estructura de la Materia, CSIC, Madrid (Spain); Balabanski, D. L. [INRNE-BAS, Sofia (Bulgaria); Blazhev, A. [IKP, Cologne (Germany); Clement, E.; Grevy, S.; Stodel, C.; Thomas, J. C. [GANIL, Caen (France); Danchev, M. [University of Sofia (Bulgaria); Daugas, J. M. [CEA, DAM, DIF, 91297 Arpajon cedex (France); Hass, M.; Kumar, V. [The Weizmann Institute, Rehovot (Israel); Leske, J.; Pietralla, N. [TU Darmstadt, Darmstadt (Germany)

2009-08-26T23:59:59.000Z

398

Stabilization mechanisms of LaFeO3 (010) surfaces determined with first principles calculations  

Science Conference Proceedings (OSTI)

Density functional theory is used to determine the stabilization mechanisms of LaFeO3 (010) surfaces over a range of surface oxygen stoichiometries. For the stoichiometric LaO surface, and for reduced surface terminations, an electron-rich surface is needed for stabilization. By contrast, in the case of the stoichiometric FeO2 surface and oxidized surface terminations with low-coordinated oxygen atoms, a hole-rich surface is needed for stabilization. The calculations further predict that low coordinated oxygen atoms are more stable on LaO-type surface terminations than on FeO2-type surface terminations due to relatively strong electron transfer. In addition to these electronic effects, atomic relaxation is found to be an important contributor to charge compensation, with LaO-type surface terminations exhibiting larger atomic relaxations than FeO2-type surface terminations. As a result, there is a significant contribution from the sub-layers to charge compensation in LaO-type surface terminations.

Lee, Chan-Woo [University of Florida; Behera, Rakesh K [University of Florida; Okamoto, Satoshi [ORNL; Devanathan, Ram [Pacific Northwest National Laboratory (PNNL); Wachsman, Eric D [University of Maryland; Phillpot, Simon R [University of Florida; Sinnott, Susan B [University of Florida

2011-01-01T23:59:59.000Z

399

Stabilization mechanisms of LaFeO3 (010) surfaces determined with first principles calculations  

SciTech Connect

Density functional theory is used to determine the stabilization mechanisms of LaFeO3 (010) surfaces over a range of surface oxygen stoichiometries. For the stoichiometric LaO surface, and for reduced surface terminations, charge redistribution is needed for stabilization that results in an electron-rich surface. In contrast, in the case of the stoichiometric FeO2 surface and oxidized surface terminations with low-coordinated oxygen atoms, a hole-rich surface is needed for stabilization. The calculations further predict that low coordinated oxygen atoms are more stable on LaO-type surface terminations than on FeO2-type surface terminations due to relatively strong electron transfer. In addition to these electronic effects, atomic relaxation is found to be an important contributor to charge compensation, with LaO-type surface terminations exhibiting larger atomic relaxations than FeO2-type surface terminations. As a result, there is a significant contribution from the sub-layers to charge compensation in LaO-type surface terminations.

Lee, Chan-Woo; Behera, Rakesh K.; Okamoto, Satoshi; Devanathan, Ramaswami; Wachsman, E. D.; Phillpot, Simon R.; Sinnott, Susan B.

2011-02-07T23:59:59.000Z

400

Tetragonal YBaFe{sub 4}O{sub 7.0}: A stoichiometric polymorph of the '114' ferrite family  

SciTech Connect

The exploration of the phase diagram of the ferrite YBaFe{sub 4}O{sub 7+{delta}} versus the oxygen content {delta} and temperature shows the complex crystal chemistry of this system. Besides the cubic form (F4 Macron 3m), which is observed up to 600 Degree-Sign C and for 0<{delta}{<=}0.65, a stoichiometric tetragonal form ({delta}=0) is isolated below 300 Degree-Sign C that is stable only in the absence of oxidizing atmosphere. The resolution of the structure of this new YBaFe{sub 4}O{sub 7.0} form, from combined neutron and synchrotron data, in the space group I4 Macron , shows significant displacements of the atoms with respect to the cubic form, especially concerning the oxygen atoms surrounding the barium cations. The decrease of several Ba-O distances around the underbonded barium cations is explained by the existence of hybridized Ba{sup (2-{delta})+}-O{sup 2-}-Fe{sup (2+{delta})+} bonds, in agreement with Moessbauer spectroscopy. The role of coulombic repulsions in the [Fe{sub 4}O] and [Fe{sub 4}] tetrahedra of the [Fe{sub 4}]{sub {infinity}} sublattice on the structural transition is also discussed. - Graphical abstract: A new form of YBaFe{sub 4}O{sub 7} '114' ferrite which is only stable in oxygen free atmosphere, even at room temperature has been prepared. This new ferrite has its structure closely related to the cubic form YBaFe{sub 4}O{sub 7+{delta}} but differently from the latter which is stable for 0<{delta}<0.65, it requires a rigorous oxygen 'O{sub 7}' stoichiometry, i.e., {delta}=0. We describe herein the phase diagram of the oxides YBaFe{sub 4}O{sub 7+{delta}} and we determine the structure of this new YBaFe{sub 4}O{sub 7.0} form, from combined neutron and synchrotron data. Highlights: Black-Right-Pointing-Pointer Oxygen stoichiometry control in '114' YBaFe{sub 4}O{sub 7+d} ferrites. Black-Right-Pointing-Pointer A new structural transition leading to a new form of YBaFe{sub 4}O{sub 7+d} '114' ferrite for d=0. Black-Right-Pointing-Pointer Structural resolution from combined neutron and synchrotron data. Black-Right-Pointing-Pointer Phase diagram of the oxides YBaFe{sub 4}O{sub 7+d}.

Duffort, V.; Caignaert, V. [CRISMAT, CNRS-ENSICAEN 6 Bd Marechal Juin, 14050 Caen (France); Pralong, V., E-mail: valerie.pralong@ensicaen.fr [CRISMAT, CNRS-ENSICAEN 6 Bd Marechal Juin, 14050 Caen (France); Barrier, N.; Raveau, B. [CRISMAT, CNRS-ENSICAEN 6 Bd Marechal Juin, 14050 Caen (France); Avdeev, M. [Bragg Institute, Australian Nuclear Science and Technology Organization, PMB 1, Menai, NSW 2234 (Australia); Zheng, H.; Mitchell, J.F. [Materials Science Division, Argonne National Laboratory 9700 S. Cass Avenue, Argonne, IL 60439 (United States)

2012-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
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401

Experimental evidence of the spin dependence of electron reflections in magnetic CoFe{sub 2}O{sub 4}/Au/Fe{sub 3}O{sub 4} trilayers  

SciTech Connect

An original epitaxial system consisting of two ferrimagnetic insulator layers (CoFe{sub 2}O{sub 4} and Fe{sub 3}O{sub 4}) separated by a nonmagnetic metallic layer (Au) has been grown. The transport properties in the current in plane geometry indicate that the conduction of the CoFe{sub 2}O{sub 4}/Au/Fe{sub 3}O{sub 4} trilayer takes place within the thin metallic layer. The giant magnetoresistance (GMR) observed (2.6% at 10 K) is associated to the switching from a parallel to an antiparallel configuration of the magnetization of the two ferrite layers and corresponds to the spin dependence of electron reflection at the interfaces with a large contribution of specular reflections. The increase of the GMR (5% at 10 K) in the symmetrical interface CoFe{sub 2}O{sub 4}/Fe{sub 3}O{sub 4}/Au/Fe{sub 3}O{sub 4} system and the effect of the interface roughness on the GMR confirm the presence of this spin-dependent specular reflection.

Snoeck, E.; Gatel, Ch.; Serra, R.; BenAssayag, G.; Moussy, J.-B.; Bataille, A. M.; Pannetier, M.; Gautier-Soyer, M. [CEMES-CNRS, Boite Postal 4347, 31055 Toulouse (France); DSM/DRECAM/CAPMAG, CEA Saclay, 91191 Gif-sur-Yvette (France)

2006-03-01T23:59:59.000Z

402

Effects of solute and vacancy segregation on antiphase boundary migration in stoichiometric and Al-rich Fe?Al: a phase-field simulation study  

E-Print Network (OSTI)

Effects of segregation of solute atoms and vacancies on migration of antiphase boundaries (APBs) in stoichiometric (Fe-25 at%Al) and Al-rich (Fe-28 at%Al) Fe?Al at 673 K have been studied using a phase-field method in which ...

Koizumi, Yuichiro

403

Electronic and magnetic structures of the postperovskite-type Fe[subscript 2]O[subscript 3] and implications for planetary magnetic records and deep interiors  

E-Print Network (OSTI)

Recent studies have shown that high pressure (P) induces the metallization of the Fe[superscript 2+]O bonding, the destruction of magnetic ordering in Fe, and the high-spin (HS) to low-spin (LS) transition of Fe in silicate ...

Shim, Sang-Heon Dan

404

Monodisperse spindle-like FeWO{sub 4} nanoparticles: Controlled hydrothermal synthesis and enhanced optical properties  

SciTech Connect

Monodisperse FeWO{sub 4} nanoparticles with specific spindle-like morphology have been synthesized in the presence of citric acid through hydrothermal process. In the synthesis route, citric acid played four roles such as the reducing agent, chelating regents, structure-directing agent and stabilizing agents. In addition, the morphology of FeWO{sub 4} was dramatically tuned by the pH value of the precursor medium. The optical properties of FeWO{sub 4} were investigated with UV-Vis spectra and photoluminescence spectroscopy. The photocatalytic experiments demonstrated that the decomposition efficiency of the monodisperse spindle-like FeWO{sub 4} nanoparticles is 74% after 30 min of UV irradiation, which displayed remarkable enhanced photodegradation activity compared with ordinary FeWO{sub 4} sample (57%) and normal TiO{sub 2} photocatalysts P-25 (56%). - Monodisperse spindle-like FeWO{sub 4} nanoparticles with enhanced photocatalytic activities. Highlights: Black-Right-Pointing-Pointer Monodisperse spindle-like FeWO{sub 4} were synthesized with hydrothermal method. Black-Right-Pointing-Pointer Citric acid plays key roles in the hydrothermal synthesis. Black-Right-Pointing-Pointer Their morphology can be tuned with pH value of the precursor medium. Black-Right-Pointing-Pointer They show enhanced photocatalytic activities with irradiation of UV light.

Guo, Jinxue; Zhou, Xiaoyu; Lu, Yibin [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)] [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China); Zhang, Xiao, E-mail: zhx1213@126.com [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)] [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China); Kuang, Shaoping; Hou, Wanguo [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)] [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)

2012-12-15T23:59:59.000Z

405

Ferromagnetism and suppression of metallic clusters in Fe implanted ZnO -- a phenomenon related to defects?  

SciTech Connect

We investigated ZnO(0001) single crystals annealed in high vacuum with respect to their magnetic properties and cluster formation tendency after implant-doping with Fe. While metallic Fe cluster formation is suppressed, no evidence for the relevance of the Fe magnetic moment to the observed ferromagnetism was found. The latter along with the cluster suppression is discussed with respect to defects in the ZnO host matrix, since the crystalline quality of the substrates was lowered due to the preparation as observed by x-ray diffraction.

Arenholz, Elke; Zhou, S.; Potzger, K.; Talut, G.; Reuther, H.; Kuepper, K.; Grenzer, J.; Xu, Q.; Mucklich, A.; Helm, M.; Fassbender, J.; Arenholz, E.

2008-03-12T23:59:59.000Z

406

Magnetic order near 270 K in mineral and synthetic Mn{sub 2}FeSbO{sub 6} ilmenite  

SciTech Connect

The structural and magnetic properties of Mn{sub 2}FeSbO{sub 6} single-crystalline mineral and ceramic samples synthesized under thermobaric treatment have been investigated, and compared to theoretical predictions based on first-principles electronic structure calculations. This ilmenite system displays a sharp magnetic transition just below the room temperature related to a ferrimagnetic ordering of the Mn{sup 2+} and Fe{sup 3+} cations, which makes Mn{sub 2}FeSbO{sub 6} a promising candidate for designing functional magnetic materials.

Mathieu, R.; Hudl, M.; Nordblad, P. [Department of Engineering Sciences, Uppsala University, Box 534, SE-75121 Uppsala (Sweden); Ivanov, S. A. [Department of Engineering Sciences, Uppsala University, Box 534, SE-75121 Uppsala (Sweden); Department of Inorganic Materials, Karpov' Institute of Physical Chemistry, Vorontsovo pole, 10 105064, Moscow K-64 (Russian Federation); Bazuev, G. V. [Institute of Solid-State Chemistry, Ural Branch of the Russian Academy of Science, 620999, Ekaterinburg GSP-145 (Russian Federation); Lazor, P. [Department of Earth Sciences, Uppsala University, Villavaegen 16, SE-75236 Uppsala (Sweden); Solovyev, I. V. [National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)

2011-05-16T23:59:59.000Z

407

The development of low cost LiFePO4-based high power lithium-ion batteries  

DOE Green Energy (OSTI)

The cycling performance of low-cost LiFePO4-based high-power lithium-ion cells was investigated and the components were analyzed after cycling to determine capacity fade mechanisms. Pouch type LiFePO4/natural graphite cells were assembled and evaluated by constant C/2 cycling, pulse-power and impedance measurements. From post-test electrochemical analysis after cycling, active materials, LiFePO4 and natural graphite, showed no degradation structurally or electrochemically. The main reasons for the capacity fade of cell were lithium inventory loss by side reaction and possible lithium deposition on the anode.

Shim, Joongpyo; Sierra, Azucena; Striebel, Kathryn A.

2003-11-25T23:59:59.000Z

408

Kinetic equilibrium of iron in the atmospheres of cool dwarf stars II. Weak Fe I lines in the solar spectrum  

E-Print Network (OSTI)

NLTE line formation calculations of FeI in the solar atmosphere are extended to include weak optical lines. Previously established atomic models are used to discriminate between different ways of treating collisional interaction processes. To derive a common solar FeI abundance from both strong and weak lines, fine-tuning of the microturbulence velocity parameter and the van-der- Waals damping constants is required. The solar FeI abundances based on all available f-values are dominated by the large scatter already found for the stronger lines. In particular the bulk of the data from the work of May et al. and O'Brian et al. is not adequate for accurate abundance work. Based on f-values measured by the Hannover and Oxford groups alone, the FeI LTE abundances are eps(FeI,Sun)=7.57 for the empirical and eps(FeI,Sun) = 7.48 ... 7.51 for the line-blanketed solar model. The solar Fe ionization equilibrium obtained for different atomic and atmospheric models rules out NLTE atomic models with a low efficiency of hydrogen collisions. At variance with Paper I, it is now in better agreement with laboratory FeII f-values for all types of line-blanketed models. Our final model assumptions consistent with a single unique solar Fe abundance eps(Fe,Sun) = 7.48 ... 7.51 calculated from NLTE line formation are (a) a line-blanketed solar model atmosphere, (b) an iron model atom with hydrogen collision rates 0.5 < S_H < 5 times the standard value to compensate for the large photoionization cross-sections, (c) a microturbulence velocity xi = 1.0 kms, (d) van-der-Waals damping parameters decreased by Delta(log C6) = -0.10...-0.15 as compared to Anstee & O'Mara's calculations, depending on S_H, (e) FeII f-values as published by Schnabel et al., and (f) FeI f-values published by the Hannover and Oxford groups.

T. Gehren; A. J. Korn; J. Shi

2001-10-29T23:59:59.000Z

409

Exchange bias of spin valve structure with a top-pinned Co{sub 40}Fe{sub 40}B{sub 20}/IrMn  

SciTech Connect

We have investigated the exchange bias of a directly top-pinned Co{sub 40}Fe{sub 40}B{sub 20}/IrMn structure. An exchange bias was realized on the as-deposited samples, in which Co{sub 40}Fe{sub 40}B{sub 20} exhibits a fully amorphous structure. A current-in-plane giant magnetoresistance effect was demonstrated on simple Ru/CoFeB/Cu/CoFeB/IrMn/Ru stacks prior to and after annealing. The amorphous CoFeB layer partially crystallized from the interface with a Cu spacer layer after annealed at 280 deg. C.

You, C. Y.; Furubayashi, T.; Takahashi, Y. K. [National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047 (Japan); Goripati, H. S. [Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8571 Japan (Japan); Hono, K. [National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047 (Japan); Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba 305-8571 (Japan)

2008-07-07T23:59:59.000Z

410

Data:0fe694fe-a8c0-4d81-80f7-720c8ec90dba | Open Energy Information  

Open Energy Info (EERE)

fe-a8c0-4d81-80f7-720c8ec90dba fe-a8c0-4d81-80f7-720c8ec90dba No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: Columbia River Peoples Ut Dist Effective date: 2011/10/01 End date if known: Rate name: Street and Highway Lighting 400w Mercury Vapor Sector: Lighting Description: Monthly Charge: Includes energy costs only, with the Customer having paid the installation costs and the periodic maintenance costs. Contract Options: For services beyond energy only, the PUD offers standard contracts for maintenance and contracts to finance Customer's street lighting installations. All applicable BPA Power Cost Adjustment charges per Rate Schedule 94 shall apply to all kWh's billed to Customers under this Rate Schedule.

411

Effect of (Bi, La)(Fe, Zn)O{sub 3} thickness on the microstructure and multiferroic properties of BiFeO{sub 3} thin films  

Science Conference Proceedings (OSTI)

The effect of Bi{sub 0.90}La{sub 0.10}Fe{sub 0.90}Zn{sub 0.10}O{sub 3} (BLFZO) thicknesses on the microstructure and multiferroic properties of BiFeO{sub 3} (BFO) thin films was investigated, and all bilayered thin films were grown on Pt-coated silicon substrates without any buffer layers by a radio frequency sputtering. A (110) orientation is dominant in all the bilayers, and two grain growth modes are identified in these bilayers by using an atomic force microscope, where different grain growth modes significantly affect their leakage behavior. The dielectric constant ({epsilon}{sub r}) of bilayers gradually increases, and magnetic properties were deteriorated with the addition of BLFZO with a higher {epsilon}{sub r} and a weaker magnetic behavior. An enhanced ferroelectric behavior of 2P{sub r} {approx} 116.2 {mu}C/cm{sup 2} and 2E{sub c} {approx} 524 kV/cm could be observed in the BFO/BLFZO bilayered thin film with 80 nm BLFZO layer owing to a higher orientation degree of (110) and an interface coupling together with a lower leakage current density. As a result, electrical properties of BFO could be tailored by modifying the thicknesses of BLFZO.

Wu Jiagang; Xiao Dingquan; Zhu Jianguo [Department of Materials Science, Sichuan University, Chengdu 610064 (China)

2012-11-01T23:59:59.000Z

412

Radiation-Induced Demagnetization of Nd-Fe-B Permanent Magnets  

NLE Websites -- All DOE Office Websites (Extended Search)

LS-290 LS-290 Radiation-Induced Demagnetization of Nd-Fe-B Permanent Magnets J. Alderman and P.K. Job APS Operations Division Advanced Photon Source Argonne National Laboratory R.C. Martin, C.M. Simmons, and G.D. Owen Californium User Facility for Neutron Science Chemical Technology Division Oak Ridge National Laboratory J. Puhl Ionizing Radiation Division National Institute of Standards and Technology November 2000 work sponsored by U.S. DEPARTMENT OF ENERGY Office of Energy Research 1 Radiation-Induced Demagnetization of Nd-Fe-B Permanent Magnets J. Alderman and P.K. Job APS Operations Division Advanced Photon Source Argonne National Laboratory R.C. Martin, C.M. Simmons, and G. D. Owen Californium User Facility for Neutron Science

413

Data:52316024-ca71-4755-95fe-8fac6bf60972 | Open Energy Information  

Open Energy Info (EERE)

ca71-4755-95fe-8fac6bf60972 ca71-4755-95fe-8fac6bf60972 No revision has been approved for this page. It is currently under review by our subject matter experts. Jump to: navigation, search Loading... 1. Basic Information 2. Demand 3. Energy << Previous 1 2 3 Next >> Basic Information Utility name: City of Duncan, Oklahoma (Utility Company) Effective date: End date if known: Rate name: Security Lighting- (400W MV on existing DPUA utility Pole) Sector: Lighting Description: This rate schedule is available on an annual basis to any customer for illumination of outdoor areas. Source or reference: ISU Documentation Rate Binder Ted #9 Source Parent: Comments Applicability Demand (kW) Minimum (kW): Maximum (kW): History (months): Energy (kWh) Minimum (kWh): Maximum (kWh): History (months):

414

U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Preparer of Report:__________________________ Telephone No.:______________________ FAX No.:__________________ Gas Sales Made Pursuant to DOE Opinion and Order No.________, under FE Docket No._______________. (1) (2) (3) (4) (5) (6) (7) (8) (9) Country of Destination Point of EXIT from U.S. U.S. Truck Loading Facility and Location Volume (Mcf at U.S. Border) Price at U.S. Border (US$/MMBtu) Supplier(s) LNG Truck Transporting Company Specific Purchaser / End User Estimated Duration of Supply Contract Send to: Office of Fossil Energy, Natural Gas Regulatory Activities, U.S. Dept. of Energy, FE-34, P.O. Box 44375 Washington, D.C. 20026-4375, Attention: Natural Gas Reports Telephone No. (202) 586-9478 Fax Number (202) 586-6050 E-Mail: ngreports@hq.doe.gov LNG Exports (Truck

415

U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

OMB No. 1901-0294 OMB No. 1901-0294 U.S. Department of Energy Natural Gas Imports and Exports Form FE-746R Expiration Date: 7/31/2016 AVG Burden: 3.0 hours Month/Year:_______________ Exporter (Authorization Holder):____________________________________________________________________ E-Mail Address:_____________________________ Address:___________________________________________________________ Preparer of Report:__________________________ Telephone No.:_____________________ FAX No.:_____________________ Gas Sales Made Pursuant to DOE Opinion and Order No.________, under FE Docket No._______________. (1) (2) (3) (4) (5) (6) (7) (8) Country of Destination Point of EXIT from U.S. Volume (Mcf at U.S. Border) Avg. Price at U.S. Border (U.S.$/MMBtu) Supplier(s) Foreign Pipeline at U.S. Border Point

416

Heat flow of the Earth and resonant capture of solar 57-Fe axions  

E-Print Network (OSTI)

In a very conservative approach, supposing that total heat flow of the Earth is exclusively due to resonant capture inside the Earth of axions, emitted by 57-Fe nuclei on Sun, we obtain limit on mass of hadronic axion: m_aheat from decays of 40-K, 232-Th, 238-U inside the Earth, this estimation could be improved to the value: m_a<1.6 keV. Both the values are less restrictive than limits set in devoted experiments to search for 57-Fe axions (m_a<216-745 eV), but are much better than limits obtained in experiments with 83-Kr (m_a<5.5 keV) and 7-Li (m_a<13.9-32 keV).

F. A. Danevich; A. V. Ivanov; V. V. Kobychev; V. I. Tretyak

2008-11-24T23:59:59.000Z

417

Consistent Data Assimilation of Structural Isotopes: 23Na and 56Fe  

SciTech Connect

A new approach is proposed, the consistent data assimilation, that allows to link the integral data experiment results to basic nuclear parameters employed by evaluators to generate ENDF/B point energy files in order to improve them. Practical examples are provided for the structural materials 23Na and 56Fe. The sodium neutron propagation experiments, EURACOS and JANUS-8, are used to improve via modifications of 23Na nuclear parameters (like scattering radius, resonance parameters, Optical model parameters, Statistical Hauser-Feshbach model parameters, and Preequilibrium Exciton model parameters) the agreement of calculation versus experiments for a series of measured reaction rate detectors slopes. For the 56Fe case the EURACOS and ZPR3 assembly 54 are used. Results have shown inconsistencies in the set of nuclear parameters used so that further investigation is needed. Future work involves comparison of results against a more traditional multigroup adjustments, and extension to other isotope of interest in the reactor community.

Giuseppe Palmiotti

2010-09-01T23:59:59.000Z

418

Microsoft PowerPoint - Project DE_FE0000032 Student Modules.pptx  

NLE Websites -- All DOE Office Websites (Extended Search)

and and Research and Research 2011 Yearly Review Meeting P j t DE FE0002111 Project DE-FE0002111 Title: A Modular Curriculum for Training University Students in Industry Standard CO2 Sequestration and Enhanced Oil Recovery q y Methodologies University of Texas of the Permian Basin y Presenter: Dr. Robert Trentham, Director Center for Energy and Economic Diversification February 23, 2011 Project Participants Project Participants * Dr Robert C. Trentham, Co-PI (Geology, CO2) , ( gy, ) * Dr Emily Stoudt, Co-PI (Geology) * Mr Robert Kiker (Production Engineering, Plant ) Visits) * Mr Steve Melzer (Reservoir Engineering, CO2) M T i M G i (L d M t) * Ms Teri McGuigan (Land Management) * Mr EMr. Emmanuel Ede, student * Ms Ibukun Bode (IBK)

419

Microsoft PowerPoint - DE-FE0002402_UTEP_Choudhuri.pptx  

NLE Websites -- All DOE Office Websites (Extended Search)

Project Project DE-FE0002402 Project DE FE0002402 Title: Investigation on Flame Characteristics and Burner Operability Issues of Oxy-Fuel Combustion p y y University of Texas El Paso y Presenter: Dr. Ahsan Choudhuri, Department of Mechanical Engineering February 24-26, 2011 Project Participants Project Participants * PI: Ahsan Choudhuri PI: Ahsan Choudhuri h f * Research Professor: Norman Love * Students Supported: - Bidhan Dam (Doctoral) d a a ( oc o a ) - MD Rafiql Islam (Master's) Introduction * Background: Investigate oxy-fuel flame g g y characteristics and assess their impact on operability of oxy-fuel combustion systems. * Anticipated benefits: Data are essential for designing and developing oxy-fuel combustion designing and developing oxy fuel combustion

420

Microsoft PowerPoint - GG_DOE_Annual_Review_DE-FE0002386.ppt [Compatibility Mode]  

NLE Websites -- All DOE Office Websites (Extended Search)

DE-FE0002386 DE-FE0002386 Geo-Chemo-Mechanical Studies for Geo Chemo Mechanical Studies for Permanent CO 2 Storage in Geologic Reservoirs Columbia University P t D J M tt Presenter: Dr. Juerg Matter February 24, 2011 Project Participants PI: Prof Peter Kelemen PI: Prof. Peter Kelemen Dept. of Earth & Environmental Sciences, Columbia University Co-PI: Prof. Juerg Matter Lamont-Doherty Earth Observatory, Columbia University Co-PI: Prof. Ah-Hyung Alissa Park D t t f E th & E i t l E i i C l bi Department of Earth & Environmental Engineering, Columbia University Graduate Students: Greeshma Gadikota (Department of Chemical Engineering, Columbia University Columbia University Amelia Paukert (Department of Earth & Environmental Sciences, Columbia University

Note: This page contains sample records for the topic "ac26-07nt42677 rpsea fe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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421

PNIC*FE2a U.S. DEPARTAIENT OF ENERGY  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PNIC*FE2a PNIC*FE2a U.S. DEPARTAIENT OF ENERGY ilOCCY EERE PROJECT MANAGEMENT CENTER NEPA DETERMINATION RECIP1ENT:State of South Dakota Energy Office STATE: SD PROJECT 1TLE : MDSP Design Development Funding Opportunity Announcement Number Procurement Instrument Number NEPA Control Number CID Number DE-FOA-0000052 GF0-09-152-005 0 Based on my review of the information concerning the proposed action, as NEPA Compliance Officer (authorized under DOE Order 451.1A), I have made the following determination: CX, EA, EIS APPENDIX AND NUMBER: Description: A9 Information gathering (including, but not limited to, literature surveys, inventories, audits), data analysis (including computer modeling), document preparation (such as conceptual design or feasibility studies, analytical energy supply

422

Molecular Underpinnings of Fe(III) Oxide Reduction by Shewanella oneidensis MR-1  

SciTech Connect

In the absence of O2 and other electron acceptors, the Gram-negative bacterium Shewanella oneidensis MR-1 can use ferric [Fe(III)] (oxy)(hydr)oxide minerals as the terminal electron acceptors for anaerobic respiration. At circumneutral pH and in the absence of strong complexing ligands, Fe(III) oxides are relatively insoluble and thus are external to the bacterial cells. S. oneidensis MR-1 and related strains of metal-reducing Shewanella have evolved the machinery (i.e., metal-reducing or Mtr pathway) for transferring electrons from the inner-membrane, through the periplasm and across the outer-membrane to the surface of extracellular Fe(III) oxides. The protein components identified to date for the Mtr pathway include CymA, MtrA, MtrB, MtrC and OmcA. CymA is an inner-membrane tetraheme c-type cytochrome (c-Cyt) that belongs to the NapC/NrfH family of quinol dehydrogenases. It is proposed that CymA oxidizes the quinol in the inner-membrane and transfers the released electrons to redox proteins in the periplasm. Although the periplasmic proteins receiving electrons from CymA during Fe(III) oxidation have not been identified, they are believed to relay the electrons in the periplasm to MtrA. A decaheme c-Cyt, MtrA is thought to be embedded in the trans outer-membrane and porin-like protein MtrB. Together, MtrAB deliver the electrons through the outer-membrane to the MtrC and OmcA on the outmost bacterial surface. MtrC and OmcA are the outer-membrane decaheme c-Cyts that are translocated across the outer-membrane by the bacterial type II secretion system. Functioning as terminal reductases, MtrC and OmcA can bind the surface of Fe(III) oxides and transfer electrons directly to these minerals via their solvent-exposed hemes. To increase their reaction rates, MtrC and OmcA can use the flavins secreted by S. oneidensis MR-1 cells as diffusible co-factors for reduction of Fe(III) oxides. Because of their extracellular location and broad redox potentials, MtrC and OmcA can also serve as the terminal reductases for soluble forms of Fe(III). Although our understanding of the Mtr pathway is still far from complete, it is the best characterized microbial pathway used for extracellular electron exchange. Characterizations of the Mtr pathway have made significant contributions to the molecular understanding of microbial reduction of Fe(III) oxides.

Shi, Liang; Rosso, Kevin M.; Clarke, Thomas A.; Richardson, David J.; Zachara, John M.; Fredrickson, Jim K.

2012-02-15T23:59:59.000Z

423

Prototype ATLAS IBL Modules using the FE-I4A Front-End Readout Chip  

E-Print Network (OSTI)

The ATLAS Collaboration will upgrade its semiconductor pixel tracking detector with a new Insertable B-layer (IBL) between the existing pixel detector and the vacuum pipe of the Large Hadron Collider. The extreme operating conditions at this location have necessitated the development of new radiation hard pixel sensor technologies and a new front-end readout chip, called the FE-I4. Planar pixel sensors and 3D pixel sensors have been investigated to equip this new pixel layer, and prototype modules using the FE-I4A have been fabricated and characterized using 120 GeV pions at the CERN SPS and 4 GeV positrons at DESY, before and after module irradiation. Beam test results are presented, including charge collection efficiency, tracking efficiency and charge sharing.

Albert, J; Alimonti, Gianluca; Allport, Phil; Altenheiner, Silke; Ancu, Lucian; Andreazza, Attilio; Arguin, Jean-Francois; Arutinov, David; Backhaus, Malte; Bagolini, Alvise; Ballansat, Jacques; Barbero, Marlon; Barbier, Grard; Bates, Richard; Battistin, Michele; Baudin, Patrick; Beau, Tristan; Beccherle, Roberto; Beck, Hans Peter; Benoit, Mathieu; Bensinger, Jim; Bomben, Marco; Borri, Marcello; Boscardin, Maurizio; Botelho Direito, Jose Antonio; Bousson, Nicolas; Boyd, George Russell Jr; Breugnon, Patrick; Bruni, Graziano; Bruschi, Marco; Buchholz, Peter; Buttar, Craig; Cadoux, Franck; Calderini, Giovanni; Caminada, Leah; Capeans, Mar; Casse, Gianluigi; Catinaccio, Andrea; Cavalli-Sforza, Matteo; Chauveau, Jacques; Chu, Ming-Lee; Ciapetti, Marco; Cindro, Vladimir; Citterio, Mauro; Clark, Allan; Cobal, Marina; Coelli, Simone; Colijn, Auke-Pieter; Colin, Daly; Collot, Johann; Crespo-Lopez, Olivier; Dalla Betta, Gian-Franco; Darbo, Giovanni; DaVia, Cinzia; David, Pierre-Yves; Debieux, Stphane; Delebecque, Pierre; Devetak, Erik; DeWilde, Burton; Di Girolamo, Beniamino; Dinu, Nicoleta; Dittus, Fridolin; Diyakov, Denis; Djama, Fares; Dobos, Daniel Adam; Doonan, Kate; Dopke, Jens; Dorholt, Ole; Dube, Sourabh; Dushkin, Andrey; Dzahini, Daniel; Egorov, Kirill; Ehrmann, Oswin; Elldge, David; Elles, Sabine; Elsing, Markus; Eraud, Ludovic; Ereditato, Antonio; Eyring, Andreas; Falchieri, Davide; Falou, Aboud; Fang, Xiaochao; Fausten, Camille; Favre, Yannick; Ferrere, Didier; Fleta, Celeste; Fleury, Julien; Flick, Tobias; Forshaw, Dean; Fougeron, Denis; Fritzsch, Thomas; Gabrielli, Alessandro; Gaglione, Renaud; Gallrapp, Christian; Gan, K; Garcia-Sciveres, Maurice; Gariano, Giuseppe; Gastaldi, Thibaut; Gemme, Claudia; Gensolen, Fabrice; George, Matthias; Ghislain, Patrick; Giacomini, Gabriele; Gibson, Stephen; Giordani, Mario Paolo; Giugni, Danilo; Gjersdal, Hvard; Glitza, Karl Walter; Gnani, Dario; Godlewski, Jan; Gonella, Laura; Gorelov, Igor; Goriek, Andrej; Gssling, Claus; Grancagnolo, Sergio; Gray, Heather; Gregor, Ingrid-Maria; Grenier, Philippe; Grinstein, Sebastian; Gromov, Vladimir; Grondin, Denis; Grosse-Knetter, Jrn; Hansen, Thor-Erik; Hansson, Per; Harb, Ali; Hartman, Neal; Hasi, Jasmine; Hegner, Franziska; Heim, Timon; Heinemann, Beate; Hemperek, Tomasz; Hessey, Nigel; Hetmnek, Martin; Hoeferkamp, Martin; Hostachy, Jean-Yves; Hgging, Fabian; Husi, Coralie; Iacobucci, Giuseppe; Idarraga, John; Ikegami, Yoichi; Janoka, Zdenko; Jansen, Jens; Jansen, Luc; Jensen, Frank; Jentzsch, Jennifer; Joseph, John; Kagan, Harris; Karagounis, Michael; Kass, Richard; Kenney, Christopher J; Kersten, Susanne; Kind, Peter; Klingenberg, Reiner; Kluit, Ruud; Kocian, Martin; Koffeman, Els; Kok, Angela; Korchak, Oleksandr; Korolkov, Ilya; Kostyukhin, Vadim; Krieger, Nina; Krger, Hans; Kruth, Andre; Kugel, Andreas; Kuykendall, William; La Rosa, Alessandro; Lai, Chung-Hang; Lantzsch, Kerstin; Laporte, Didier; Lapsien, Tobias; Lounis, abdenour; Lozano, Manuel; Lu, Yunpeng; Lubatti, Henry; Macchiolo, Anna; Mallik, Usha; Mandi?, Igor; Marchand, Denis; Marchiori, Giovanni; Massol, Nicolas; Matthias, Wittgen; Mttig, Peter; Mekkaoui, Abderrazak; Menouni, Mohsine; Menu, Johann; Meroni, Chiara; Mesa, Javier; Micelli, Andrea; Michal, Sbastien; Miglioranzi, Silvia; Miku, Marko; Mitsui, Shingo; Monti, Mauro; Moore, J; Morettini, Paolo; Muenstermann, Daniel; Murray, Peyton; Nellist, Clara; Nelson, David J; Nessi, Marzio; Neumann, Manuel; Nisius, Richard; Nordberg, Markus; Nuiry, Francois-Xavier; Oppermann, Hermann; Oriunno, Marco; Padilla, Cristobal; Parker, Sherwood; Pellegrini, Giulio; Pelleriti, Gabriel; Pernegger, Heinz; Piacquadio, Nicola Giacinto; Picazio, Attilio; Pohl, David; Polini, Alessandro; Popule, Ji?; Portell Bueso, Xavier; Povoli, Marco; Puldon, David; Pylypchenko, Yuriy; Quadt, Arnulf; Quirion, David; Ragusa, Francesco; Rambure, Thibaut; Richards, Erik; Ristic, Branislav; Rhne, Ole; Rothermund, Mario; Rovani, Alessandro; Rozanov, Alexandre; Rubinskiy, Igor; Rudolph, Matthew Scott; Rummler, Andr; Ruscino, Ettore; Salek, David; Salzburger, Andreas; Sandaker, Heidi; Schipper, Jan-David; Schneider, Basil; Schorlemmer, Andre; Schroer, Nicolai; Schwemling, Philippe; Seidel, Sally; Seiden, Abraham; cho, Petr; Skubic, Patrick; Sloboda, Michal; Smith, D; Sood, Alex; Spencer, Edwin; Strang, Michael; Stugu, Bjarne; Stupak, John; Su, Dong; Takubo, Yosuke; Tassan, Jean; Teng, Ping-Kun; Terada, Susumu; Todorov, Theodore; Tomek, Michal; Toms, Konstantin; Travaglini, Riccardo; Trischuk, William; Troncon, Clara; Troska, Georg

2012-01-01T23:59:59.000Z

424

Combustion of Bulk 84% Fe/16% KCIO{sub 4} heat powder  

DOE Green Energy (OSTI)

Fe/KClO{sub 4} pyrotechnic mixtures are used in thermal batteries to provide the heat necessary to bring the battery stack to operating temperatures of 550 to 600 C. This heat source is normally used as discs pressed from bulk powder. To evaluate the consequences associated with unexpected ignition of large amounts of heat powder, combustion of 84% Fe/16% KClO{sub 4} heat powders was conducted for various scenarios under controlled conditions and the response documented. Increasing amounts of heat powder--up to 8 lbs--were ignited in both unconfined and confined (sealed) containers in a remote area. The containers were thermocoupled and the resulting burning filmed with a standard video camera, high-speed (1,000 frames/s) film and video cameras, and an infrared video camera. A 20- minute video of the burning under the various conditions is presented.

Nissen, M.; Guidotti, R.A.; Berry, B.

1996-05-01T23:59:59.000Z

425

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

SciTech Connect

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

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

2012-01-01T23:59:59.000Z

426

Atom-probe field-ion-microscopy study of Fe-Ti alloys  

DOE Green Energy (OSTI)

A newly developed high-performance atom-probe (field ion microscope) was employed for the composition analysis of Fe-Ti alloys and their interactions with ambient gas, such as H/sub 2/ and O/sub 2/. With a mass resolution (m/..delta..m) better than 2000 and a spatial resolution of a few A, all isotopes of Fe and Ti and their hydrides and other compounds are clearly resolved during the depth profile study. Some of our findings are: (1) Titanium segregated on the surface and grain boundaries upon heating (greater than or equal to 900/sup 0/C), in the form of oxides, and (2) some Ti in the bulk forms clusters of various sizes with C, O, and/or N as nuclei.

Pickering, H.W.; Kuk, Y.; Sakurai, T.

1980-01-01T23:59:59.000Z

427

Structure, magnetism, and adhesion at Cr/Fe interfaces from density functional theory  

E-Print Network (OSTI)

of industry due to its high melting point and wear resistance. For example, steel gun barrels are sub- jected has been aimed primarily at ceramic coatings/ liners (see, e.g. [4] and references therein). Ceramic­silicide ceramic/ iron interfaces (e.g., ZrC [7], TiC [8­10], and MoSi2 [11] on Fe substrates). While ceramics

Carter, Emily A.

428

Structure and property relationship in the mixed-conducting Sr-Fe-Co-O system.  

DOE Green Energy (OSTI)

Mixed-conducting ceramic oxides have potential uses in high-temperature electrochemical applications such as solid oxide fuel cells, advanced batteries, sensors, and oxygen-permeable membranes. The Sr-Fe-Co-O system combines high electronic/ionic conductivity with appreciable oxygen permeability at elevated temperatures. Dense ceramic membranes made of this material can be used to separate high-purity oxygen from air without the need for external electrical circuitry, or to partially oxidize methane to produce syngas. Samples of Sr{sub 2}Fe{sub 3{minus}x}Co{sub x}O{sub y} (with x = 0, 0.6, 1.0, and 1.4) were prepared by solid-state reaction in atmospheres with various oxygen partial pressures (pO{sub 2}) and were characterized by X-ray diffraction, scanning electron microscopy, and electrical conductivity measurements. Phase components of the samples are dependent on cobalt concentration and synthesis pO{sub 2}. Total conductivity increases with increasing temperature and cobalt content in the material. Higher ionic transference numbers have been observed in samples with lower cobalt contents. Current-voltage characteristics determined in a gas-tight cell indicate that a bulk effect, rather than a surface exchange effect, is the main limiting factor for oxygen permeation through membranes made of Sr{sub 2}Fe{sub 2}CoO{sub y}. Oxygen permeability measurements at various temperatures showed that oxygen permeability increases with increasing temperature, as expected. At 900 C, an oxygen permeation flux of 2.5 scc{center_dot}cm{sup {minus}2}{center_dot}min{sup {minus}1} was obtained for a Sr{sub 2}Fe{sub 2}CoO{sub y} disk of 2.9 mm thickness.

Ma, B.

1998-05-18T23:59:59.000Z

429

Al-Ca and Al-Fe metal-metal composite strength, conductivity, and microstructure relationships  

SciTech Connect

Deformation processed metal-metal composites (DMMCs) are composites formed by mechanical working (i.e., rolling, swaging, or wire drawing) of two-phase, ductile metal mixtures. Since both the matrix and reinforcing phase are ductile metals, the composites can be heavily deformed to reduce the thickness and spacing of the two phases. Recent studies have shown that heavily drawn DMMCs can achieve anomalously high strength and outstanding combinations of strength and conductivity. In this study, Al-Fe wire composite with 0.07, 0.1, and 0.2 volume fractions of Fe filaments and Al-Ca wire composite with 0.03, 0.06, and 0.09 volume fractions of Ca filaments were produced in situ, and their mechanical properties were measured as a function of deformation true strain. The Al-Fe composites displayed limited deformation of the Fe phase even at high true strains, resulting in little strengthening effect in those composites. Al-9vol%Ca wire was deformed to a deformation true strain of 13.76. The resulting Ca second-phase filaments were deformed to thicknesses on the order of one micrometer. The ultimate tensile strength increased exponentially with increasing deformation true strain, reaching a value of 197 MPa at a true strain of 13.76. This value is 2.5 times higher than the value predicted by the rule of mixtures. A quantitative relationship between UTS and deformation true strain was determined. X-ray diffraction data on transformation of Al + Ca microstructures to Al + various Al-Ca intermetallic compounds were obtained at the Advanced Photon Source at Argonne National Laboratory. Electrical conductivity was measured over a range of true strains and post-deformation heat treatment schedules.

Kim, Hyong June

2011-12-01T23:59:59.000Z

430

Microsoft Word - _FE0010496_ NETL Report Covers_Mar report_1.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE Award No.: DE-FE0010496 Quarterly Research Performance Progress Report (Period ending 03/31/2013) Application of Crunch-Flow Routines to Constrain Present and Past Carbon Fluxes at Gas-Hydrate Bearing Sites Project Period: October 1, 2012 - September 30, 2013 Submitted by: Marta Torres Professor of Oceanography Oregon State University DUNS #: 053599908 104 COAS Admin. Bldg. Corvallis, OR 97331-5503 e-mail: mtorres@coas.oregonstate.edu Phone number: (541) 737-2902 Prepared for:

431

Epitaxial stabilization of -Fe2O3 (00l) thin films on SrTiO3 (111)  

SciTech Connect

Thin films of the metastable and elusive -Fe2O3 have been epitaxially stabilized on SrTiO3 (111) substrates. The -Fe2O3 films present a (001) orientation perpendicular to the substrate and three in-plane domains measuring a few nanometers and showing atomically sharp interfaces. We argue that this domain structure, rather than the epitaxial-strain, plays an essential role in stabilizing the -Fe2O3 by minimizing the energy of (100) surfaces. The -Fe2O3 films show a large in-plane coercivity 8 kOe which combined with the magnetoelectric character claimed for this oxide may lead to novel applications in spintronics.

Gich, Marti [Universitat de Barcelona; Gazquez, J. [Oak Ridge National Laboratory (ORNL); Roig, Anna [Universitat de Barcelona; Fontcuberta, Josep [Universitat de Barcelona; Idrobo Tapia, Juan C [ORNL; Pennycook, Stephen J [ORNL; Varela del Arco, Maria [ORNL; Skumryev, Vassil [Universitat Autonoma de Barcelona; Varela, Manuel [Universitat de Barcelona

2010-01-01T23:59:59.000Z

432

Magneto-Electric Response in Semi-Monolithic CoFe2O4/Pb(Mg,Nb)  

Science Conference Proceedings (OSTI)

Presentation Title, Magneto-Electric Response in Semi-Monolithic CoFe2O4/Pb( Mg,Nb)O3-PbTiO3 Heterostructures. Author(s), Zhiguang Wang, Jaydip Das,...

433

Mossbauer spectroscopic and x-ray diffraction studies of FeSiO2 nanocomposite soft magnetic materials  

E-Print Network (OSTI)

a wet chemical reaction method. A series of metal-ceramic Fe/SiO2 nanocomposite powder samples were cannot yield bulk products for which there is a large demand in high- frequency electronics industry

Yang, De-Ping

434

Thermal Stabilities of Delithiated Olivine MPO[subscript 4] (M=Fe,Mn) Cathodes investigated using First Principles Calculations  

E-Print Network (OSTI)

We present an analysis of the thermal reduction of delithiated LiMnPO[subscript 4] and LiFePO[subscript 4] based on the quarternary phase diagrams as calculated from first principles. Our results confirm the recent ...

Ong, Shyue Ping

435

Carbon and electron flow via methanogenesis, So??, NO?? and Fe? reduction in the anoxic hypolimnia of upper Mystic Lake  

E-Print Network (OSTI)

The profiles of CH? and CO? obtained by the use of a novel sampler, along with the profiles for nitrate (NO??), sulfate (So??)and iron (Fe?) were used to estimate the rates of the various anaerobic decomposition reactions ...

Peterson, Eliza J. R. (Eliza Jane Reader), 1979-

2005-01-01T23:59:59.000Z

436

Impact of Carbon Structure and Morphology on the Electrochemical Performance of LiFePO4/C Composites  

E-Print Network (OSTI)

synthesis of LiFePO 4 and carbon fibers or nanotubes, whichcatalyze the formation of carbon fibers or nanotubes in thephosphate/carbon nanotube and carbon fiber composites and

Doeff, Marca M.; Wilcox, James D.; Yu, Rong; Aumentado, Albert; Marcinek, Marek; Kostecki, Robert

2007-01-01T23:59:59.000Z

437

Impact of carbon structure and morphology on the electrochemical performance of LiFePO4/C composites  

E-Print Network (OSTI)

synthesis of LiFePO 4 and carbon fibers or nanotubes, whichcatalyze the formation of carbon fibers or nanotubes in thephosphate/carbon nanotube and carbon fiber composites and

Doeff, Marca M

2008-01-01T23:59:59.000Z

438

Structural / magnetic phase transitions and superconductivity in Ba(Fe1-xTMx)2As2 single crystals.  

E-Print Network (OSTI)

??BaFe2As2 single crystal undergoes strongly coupled tetragonal to orthorhombic / paramagnetic to antiferromagnetic phase transitions at 134 K and can become superconducting under doping. To (more)

Ni, Ni

2009-01-01T23:59:59.000Z

439

Designing materials for energy storage with high power and energy density : LiFePO? cathode material  

E-Print Network (OSTI)

LiFePO? has drawn a lot of attention as a cathode material in lithium rechargeable batteries because its structural and thermal stability, its inexpensive cost, and environmental friendliness meet the requirements of power ...

Kang, Byoungwoo

2010-01-01T23:59:59.000Z

440

Pages that link to "Data:48839eaa-6525-4747-b8fe-f942051fcee9...  

Open Energy Info (EERE)

-4747-b8fe-f942051fcee9: View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500) City of Oak Ridge, Tennessee (Utility Company) ( links) View (previous 50 | next 50) (20 |...

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441

Electronic structure of multiferroic BiFeO3 by resonant soft-x-ray emission spectroscopy  

E-Print Network (OSTI)

3 thin film is low electrical resistivity, which affects thetemperature. The low electrical resistivity of BiFeO 3 thinneeds the high electrical resistivity in order to obtain

Higuchi, T.

2008-01-01T23:59:59.000Z

442

EffectsofTransitionMetalSubstitutionsontheIncommensurabilityandSpinFluctuationsinBaFe2As2byElasticandInelasticNeutronScattering  

Science Conference Proceedings (OSTI)

Thespin uctuationspectrafromnonsuperconductingCu-substituted,andsuperconductingCo-substituted,BaFe2As2arecomparedquantitativelybyinelasticneutronscatteringmeasurementsandarefoundtobeindistinguishable.Whereasdiffractionstudiesshowtheappearanceofincommensu-ratespin-densitywaveorderinCoandNisubstitutedsamples,themagneticphasediagramforCusubstitutiondoesnotdisplayincommensurateorder,demonstratingthatsimpleelectroncountingbasedonrigid-bandconceptsisinvalid.Theseresults,supportedbytheoreticalcalculations,suggestthatsubstitu-tionalimpurityeffectsintheFeplaneplayasigni cantroleincontrollingmagnetismandtheappearanceofsuperconductivity,withCudistinguishedbyenhancedimpurityscatteringandsplit-bandbehavior.

Kim, M. G. [Ames Laboratory and Iowa State University; Lamsal, J. [Ames Laboratory and Iowa State University; Heitmann, T. W. [University of Missouri; Tucker, G. S. [Ames Laboratory and Iowa State University; Pratt, Daniel [Ames Laboratory and Iowa State University; Khan, S. N. [Ames Laboratory; Lee, Y. B. [Ames Laboratory and Iowa State University; Alam, A. [Ames Laboratory; Thaler, A. [Ames Laboratory and Iowa State University; Ni, N [Ames Laboratory and Iowa State University; Ran, S. [Ames Laboratory and Iowa State University; Budko, S L [Ames Laboratory and Iowa State University; Marty, Karol J [ORNL; Lumsden, Mark D [ORNL; Canfield, Paul [Ames Laboratory and Iowa State University; Harmon, B. N. [Ames Laboratory; Johnson, D. D. [Ames Laboratory and Iowa State University; Kreyssig, A. [Ames Laboratory and Iowa State University; Mcqueeney, R J [Ames Laboratory and Iowa State University; Goldman, A. I. [Ames Laboratory and Iowa State University

2012-01-01T23:59:59.000Z

443

Front Matter Template  

NLE Websites -- All DOE Office Websites (Extended Search)

RPSEA RPSEA Final Report 08123.02.Final Field Demonstration of Alkaline Surfactant Polymer Floods in Mature Oil Reservoirs, Brookshire Dome, Texas October 21, 2012 Chris Lewis Layline Petroleum LLC PI-Mukul M. Sharma Bo Gao The University of Texas at Austin 200 E. Dean Keeton St. Stop C0300 Austin, Texas 78712 (512) 471-3257 msharma@mail.utexas.edu 2 LEGAL NOTICE This report was prepared by Layline Petroleum LLC as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA, members of RPSEA, the National Energy Technology Laboratory, the U.S. Department of Energy, nor any person acting on behalf of any of the entities: a. MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO ACCURACY, COMPLETENESS, OR USEFULNESS

444

Microsoft Word - 09121-3300-06 - Phase1 Final Report - 03-13-12.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

RPSEA RPSEA Phase 1 Final Report 09121-3300-06.Phase1FINAL High Resolution 3D Laser Imaging for Inspection, Maintenance, Repair, and Operations Contract: 09121-3300-06 March 9, 2012 Carl Embry Chief Technologist / Partner 3D at Depth, LLC 5733 Central Avenue Boulder, CO 80301 LEGAL NOTICE This report was prepared by 3D at Depth, LLC as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA members of RPSEA, the National Energy Technology Laboratory, the U.S. Department of Energy, nor any person acting on behalf of any of the entities: a. MAKES ANY WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED WITH RESPECT TO ACCURACY, COMPLETENESS, OR USEFULNESS OF THE INFORMATION CONTAINED IN THIS DOCUMENT, OR THAT THE USE OF ANY INFORMATION,

445

Microsoft Word - 09121-3500-02 - Final Report D - 02-16-12.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

Page 1 of 23 Page 1 of 23 RPSEA FINAL REPORT RPSEA Document Number: 09121-3500-02.FINAL SRP SHRINK-FIT CONNECTION 09121-3500-02 Principal Investigator: Paul Brett [Paul.Brett@subseariserproducts.com] Title: Senior Engineer Subsea Riser Products Ltd., GMS House, Boundary Road, Woking, GU21 5BX Research Partnership to Secure Energy for America Ultra Deepwater Program SRP Shrink-Fit Coupling Fatigue Qualification Final Report 1035-RPT-0009-06/PB 23 rd Feb 2012 Page 2 of 23 LEGAL NOTICE This report was prepared by Subsea Riser Products as an account of work sponsored by the Research Partnership to Secure Energy for America, RPSEA. Neither RPSEA members of RPSEA, the National Energy

446

ANALYSIS OF THE EARLY-TIME OPTICAL SPECTRA OF SN 2011fe IN M101  

SciTech Connect

The nearby Type Ia supernova (SN Ia) SN 2011fe in M101 (cz = 241 km s{sup -1}) provides a unique opportunity to study the early evolution of a 'normal' SN Ia, its compositional structure, and its elusive progenitor system. We present 18 high signal-to-noise spectra of SN 2011fe during its first month beginning 1.2 days post-explosion and with an average cadence of 1.8 days. This gives a clear picture of how various line-forming species are distributed within the outer layers of the ejecta, including that of unburned material (C+O). We follow the evolution of C II absorption features until they diminish near maximum light, showing overlapping regions of burned and unburned material between ejection velocities of 10,000 and 16,000 km s{sup -1}. This supports the notion that incomplete burning, in addition to progenitor scenarios, is a relevant source of spectroscopic diversity among SNe Ia. The observed evolution of the highly Doppler-shifted O I {lambda}7774 absorption features detected within 5 days post-explosion indicates the presence of O I with expansion velocities from 11,500 to 21,000 km s{sup -1}. The fact that some O I is present above C II suggests that SN 2011fe may have had an appreciable amount of unburned oxygen within the outer layers of the ejecta.

Parrent, J. T.; Fesen, R. A. [6127 Wilder Lab, Department of Physics and Astronomy, Dartmouth College, Hanover, NH 03755 (United States); Howell, D. A.; Dilday, B. [Las Cumbres Observatory Global Telescope Network, Goleta, CA 93117 (United States); Friesen, B.; Baron, E. [Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 W Brooks, Norman, OK 73019 (United States); Thomas, R. C.; Nugent, P. [Physics Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States); Milisavljevic, D. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 (United States); Bianco, F. B.; Bildsten, L. [Department of Physics, University of California, Santa Barbara, Santa Barbara, CA 93117 (United States); Arcavi, I.; Ben-Ami, S.; Gal-Yam, A. [Department of Particle Physics and Astrophysics, The Weizmann Institute of Science, Rehovot 76100 (Israel); Bersier, D. [Astrophysics Research Institute, Liverpool John Moores University, Birkenhead CH41 1LD (United Kingdom); Bloom, J.; Cenko, S. B.; Filippenko, A. V. [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Cao, Y. [Cahill Center for Astronomy and Astrophysics, California Institute of Technology, 1200 E California Blvd., Pasadena, CA 91125 (United States); Kasliwal, M. M. [Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); and others

2012-06-20T23:59:59.000Z

447

Electronic Reconstruction through the Structural and Magnetic Transitions in Detwinned NaFeAs  

SciTech Connect

We use angle-resolved photoemission spectroscopy to study twinned and detwinned iron pnictide compound NaFeAs. Distinct signatures of electronic reconstruction are observed to occur at the structural (T{sub S}) and magnetic (T{sub SDW}) transitions. At T{sub S}, C{sub 4} rotational symmetry is broken in the form of an anisotropic shift of the orthogonal d{sub xz} and d{sub yz} bands. The magnitude of this orbital anisotropy rapidly develops to near completion upon approaching T{sub SDW}, at which temperature band folding occurs via the antiferromagnetic ordering wave vector. Interestingly, the anisotropic band shift onsetting at T{sub S} develops in such a way to enhance the nesting conditions in the C{sub 2} symmetric state, hence is intimately correlated with the long range collinear AFM order. Furthermore, the similar behaviors of the electronic reconstruction in NaFeAs and Ba(Fe{sub 1-x}Co{sub x}){sub 2}As{sub 2} suggests that this rapid development of large orbital anisotropy between T{sub S} and T{sub SDW} is likely a general feature of the electronic nematic phase in the iron pnictides, and the associated orbital fluctuations may play an important role in determining the ground state properties.

Yi, M.; Lu, D.H.; Moore, R.G.; Kihou, K; Lee, C-H; Iyo, A.; Eisaki, H.; Yoshida, T; Fujimori, A; Shen, Z-X

2012-05-25T23:59:59.000Z

448

Microstructure and ordering parameter studies in multilayer [FePt(x)/Os]{sub n} films  

SciTech Connect

The microstructure, ordering parameter, and magnetic properties of multilayer [FePt(x)/Os]{sub n} films on glass substrate by dc-magnetron sputtering (with x being thickness in nm; Os with a fixed thickness 5 nm; n being the number of layers) have been studied as a function of the annealing temperatures between 300 and 900 deg. C. The grain size of multilayer films can be controlled by annealing temperature and thickness of the FePt layer with Os space layer. The coercivity as a function of the annealing temperature for samples with n = 1 and pure FePt behaves roughly saturated after annealing above 700 deg. C. However, for samples with n > 4 the value of H{sub c} seems still increasing with increasing annealing temperature between 600 and 900 deg. C, and the ordering parameter decreases with increasing the number of Os layers. Our experimental results are reasonably well to describe the effect of strain-assisted transformation.

Chiang, D. P. [Division of Natural Science, Ming Hsin University of Sci. and Techn., Hsinchu 304, Taiwan (China); Department of Materials Engineering, Tatung University, Taipei 104, Taiwan (China); Chen, S. Y.; Chen, Y. Y. [Institute of Physics, Academia Sinica, Taipei 115, Taiwan (China); Yao, Y. D. [Institute of Applied Science and Engineering, Fu Jen University, Taipei 242, Taiwan (China); Ouyang, H. [Department of Materials Sci. and Engn., Tsing Hua University, Hsinchu 300, Taiwan (China); Yu, C. C. [Department of Applied Physics, National University of Kaohsiung, Kaohsiung 811, Taiwan (China); Lin, H. M. [Department of Materials Engineering, Tatung University, Taipei 104, Taiwan (China)

2011-04-01T23:59:59.000Z

449

X-rays structural analysis and thermal stability studies of the ternary compound {alpha}-AlFeSi  

Science Conference Proceedings (OSTI)

From literature data presently available, the decomposition temperature and the nature of the decomposition reaction of the ternary compound {alpha}-AlFeSi (also designated as {alpha}{sub H} or {tau}{sub 5}) are not clearly identified. Moreover, some uncertainties remain concerning its crystal structure. The crystallographic structure and thermochemical behaviour of the ternary compound {alpha}-AlFeSi were meticulously studied. The crystal structure of {alpha}-AlFeSi was examined at room temperature from X-ray single crystal intensity data. It presents hexagonal symmetry, space group P6{sub 3}/mmc with unit cell parameters (293 K) a=12.345(2) A and c=26.210(3) A (V=3459 A{sup 3}). The average chemical formula obtained from refinement is Al{sub 7.1}Fe{sub 2}Si. From isothermal reaction-diffusion experiments and Differential Thermal Analysis, the title compound decomposes peritectically upon heating into {theta}-Fe{sub 4}Al{sub 13}(Si), {gamma}-Al{sub 3}FeSi and a ternary Al-rich liquid. Under atmospheric pressure, the temperature of this reversible transformation has been determined to be 772{+-}12 {sup o}C. -- Graphical abstract: Partial representation of the crystal structure of the {alpha}-Al{sub 7.1}Fe{sub 2}Si compound. Display Omitted Highlights: The main findings of our work are: {yields} a detailed X-rays crystal structure determination of the ternary compound {alpha}-AlFeSi. {yields} The precision of the silicon atoms positions in the crystal structure. {yields} A precised determination of the decomposition temperature of this compound.

Roger, J., E-mail: jerome.roger@univ-lyon1.f [Laboratoire des Multimateriaux et Interfaces, UMR CNRS no. 5615, Universite Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex (France); Bosselet, F.; Viala, J.C. [Laboratoire des Multimateriaux et Interfaces, UMR CNRS no. 5615, Universite Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex (France)

2011-05-15T23:59:59.000Z

450

Tetragonal YBaFe{sub 4}O{sub 7.0}: a stoichiometric polymorph of the '114' ferrite family  

Science Conference Proceedings (OSTI)

The exploration of the phase diagram of the ferrite YBaFe{sub 4}O{sub 7+{delta}} versus the oxygen content {delta} and temperature shows the complex crystal chemistry of this system. Besides the cubic form (F4{sup -}3m), which is observed up to 600 C and for 0 stoichiometric tetragonal form ({delta} = 0) is isolated below 300 C that is stable only in the absence of oxidizing atmosphere. The resolution of the structure of this new YBaFe{sub 4}O{sub 7.0} form, from combined neutron and synchrotron data, in the space group I4{sup -}, shows significant displacements of the atoms with respect to the cubic form, especially concerning the oxygen atoms surrounding the barium cations. The decrease of several Ba-O distances around the underbonded barium cations is explained by the existence of hybridized Ba{sup (2-{delta})+}-O{sup 2-}-Fe{sup (2+{delta})+} bonds, in agreement with Moessbauer spectroscopy. The role of coulombic repulsions in the [Fe{sub 4}O] and [Fe{sub 4}] tetrahedra of the [Fe{sub 4}]{infinity} sublattice on the structural transition is also discussed.

Duffort, V.; Caignaert, V.; Pralong, V.; Barrier, N.; Raveau, B.; Avdeev, M.; Zheng, H.; Mitchell, J. F. (Materials Science Division); (CRISMAT, CNRS-ENSICAEN); (Australian Nucl. Sci. Tech. Org.)

2012-03-01T23:59:59.000Z

451

Iron (Fe)  

Science Conference Proceedings (OSTI)

Table 19   Linear thermal expansion of iron...Table 19 Linear thermal expansion of iron Temperature Change in length, % (a) Coefficient

452

Fe XII STALKS AND THE ORIGIN OF THE AXIAL FIELD IN FILAMENT CHANNELS  

SciTech Connect

Employing Fe XII images and line-of-sight magnetograms, we deduce the direction of the axial field in high-latitude filament channels from the orientation of the adjacent stalklike structures. Throughout the rising phase of the current solar cycle 24, filament channels poleward of latitude 30 Degree-Sign overwhelmingly obeyed the hemispheric chirality rule, being dextral (sinistral) in the northern (southern) hemisphere, corresponding to negative (positive) helicity. During the deep minimum of 2007-2009, the orientation of the Fe XII stalks was often difficult to determine, but no obvious violations of the rule were found. Although the hemispheric trend was still present during the maximum and early declining phase of cycle 23 (2000-2003), several high-latitude exceptions were identified at that time. From the observation that dextral (sinistral) filament channels form through the decay of active regions whose Fe XII features show a counterclockwise (clockwise) whorl, we conclude that the axial field direction is determined by the intrinsic helicity of the active regions. In contrast, generation of the axial field component by the photospheric differential rotation is difficult to reconcile with the observed chirality of polar crown and circular filament channels, and with the presence of filament channels along the equator. The main role of differential rotation in filament channel formation is to expedite the cancellation of flux and thus the removal of the transverse field component. We propose further that, rather than being ejected into the heliosphere, the axial field is eventually resubmerged by flux cancellation as the adjacent unipolar regions become increasingly mixed.

Wang, Y.-M.; Sheeley, N. R. Jr. [Space Science Division, Naval Research Laboratory, Washington, DC 20375 (United States); Stenborg, G., E-mail: yi.wang@nrl.navy.mil, E-mail: neil.sheeley@nrl.navy.mil, E-mail: guillermo.stenborg.ctr.ar@nrl.navy.mil [George Mason University, Fairfax, VA 22030 (United States)

2013-06-10T23:59:59.000Z

453

Computational and Experimental Design of Fe-Based Superalloys for Elevated-Temperature Applications  

SciTech Connect

Analogous to nickel-based superalloys, Fe-based superalloys, which are strengthened by coherent B2- type precipitates are proposed for elevated-temperature applications. During the period of this project, a series of ferritic superalloys have been designed and fabricated by methods of vacuum-arc melting and vacuum-induction melting. Nano-scale precipitates were characterized by atom-probe tomography, ultrasmall- angle X-ray scattering, and transmission-electron microscopy. A duplex distribution of precipitates was found. It seems that ferritic superalloys are susceptible to brittle fracture. Systematic endeavors have been devoted to understanding and resolving the problem. Factors, such as hot rolling, precipitate volume fractions, alloy compositions, precipitate sizes and inter-particle spacings, and hyperfine cooling precipitates, have been investigated. In order to understand the underlying relationship between the microstructure and creep behavior of ferric alloys at elevated temperatures, in-situ neutron studies have been carried out. Based on the current result, it seems that the major role of β? with a 16%-volume fraction in strengthening ferritic alloys is not load sharing but interactions with dislocations. The oxidation behavior of one ferritic alloy, FBB8 (Fe-6.5Al-10Ni-10Cr-3.4Mo-0.25Zr-0.005B, weight percent), was studied in dry air. It is found that it possesses superior oxidation resistance at 1,023 and 1,123 K, compared with other creep-resistant ferritic steels [T91 (modified 9Cr-1Mo, weight percent) and P92 (9Cr-1.8W-0.5Mo, weight percent)]. At the same time, the calculation of the interfacial energies between the -iron and B2-type intermetallics (CoAl, FeAl, and NiAl) has been conducted.

Peter K. Liaw; Morris E. Fine; Gautam Ghosh; Mark D. Asta; Chain T. Liu; Zhiqian Sun; Shenyan Huang; Zhenke Teng; Gongyao Wang

2012-01-14T23:59:59.000Z

454

Selected test results from the LiFeBatt iron phosphate Li-ion battery.  

DOE Green Energy (OSTI)

In this paper the performance of the LiFeBatt Li-ion cell was measured using a number of tests including capacity measurements, capacity as a function of temperature, ohmic resistance, spectral impedance, high power partial state of charge (PSOC) pulsed cycling, pulse power measurements, and an over-charge/voltage abuse test. The goal of this work was to evaluate the performance of the iron phosphate Li-ion battery technology for utility applications requiring frequent charges and discharges, such as voltage support, frequency regulation, and wind farm energy smoothing. Test results have indicated that the LiFeBatt battery technology can function up to a 10C{sub 1} discharge rate with minimal energy loss compared to the 1 h discharge rate (1C). The utility PSOC cycle test at up to the 4C{sub 1} pulse rate completed 8,394 PSOC pulsed cycles with a gradual loss in capacity of 10 to 15% depending on how the capacity loss is calculated. The majority of the capacity loss occurred during the initial 2,000 cycles, so it is projected that the LiFeBatt should PSOC cycle well beyond 8,394 cycles with less than 20% capacity loss. The DC ohmic resistance and AC spectral impedance measurements also indicate that there were only very small changes after cycling. Finally, at a 1C charge rate, the over charge/voltage abuse test resulted in the cell venting electrolyte at 110 C after 30 minutes and then open-circuiting at 120 C with no sparks, fire, or voltage across the cell.

Ingersoll, David T.; Hund, Thomas D.

2008-09-01T23:59:59.000Z

455

Fluoride-added Pr-Fe-B die-upset magnets with increased electrical resistivity  

SciTech Connect

This work reports the effect of NdF{sub 3}, DyF{sub 3}, and CaF{sub 2} additions on the electrical resistivity and magnetic properties of Pr-Fe-B hot-pressed and die-upset permanent magnets. Composite magnets were synthesized from ground Pr{sub 14.5}Fe{sub 79.5}B{sub 6} melt-spun ribbons blended with 5 wt % of fluoride fine powders and consolidated by hot pressing at 650 deg. C, followed by die upsetting at 800 deg. C. While CaF{sub 2} is stable at the processing temperatures, the rare earth atoms separate from their fluorides to a certain degree with the assistance of the Pr-rich phase from the magnet matrix. Addition of fluorides increased the resistivity of the hot-pressed specimens by more than 200%. The resistivity of the die-upset specimens measured perpendicularly to the direction of the applied pressure, which is also the direction of magnetization, is, however, only slightly increased compared to the magnet counterparts without the fluoride addition. The intrinsic coercivity of Pr{sub 14.5}Fe{sub 79.5}B{sub 6} die-upset specimens is increased from 14.5 kOe to 15.3, 17.1, and 17.7 kOe for the addition of CaF{sub 2}, DyF{sub 3}, and NdF{sub 3}, respectively, at a slight expense of the residual flux.

Marinescu, M.; Liu, J. F. [Electron Energy Corporation, 924 Links Ave., Landisville, Pennsylvania 17538 (United States); Gabay, A. M.; Hadjipanayis, G. C. [Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)

2009-04-01T23:59:59.000Z

456

Chemical expansion of La0.8Sr0.2Fe0.7Ga0.3O3-Olivier Valentina  

E-Print Network (OSTI)

1/26 Chemical expansion of La0.8Sr0.2Fe0.7Ga0.3O3- Olivier Valentina , Francis Millotb , ?ric: This paper deals with the chemical expansion measurements and modelling of La0.8Sr0.2Fe0.7Ga0.3O3 for lanthanum ferrite oxides, chemical expansion depends linearly on the Fe4+ concentration rather than

Paris-Sud XI, Université de

457

The effect of interelement dipole coupling in patterned ultrathin single crystal Fe square arrays  

SciTech Connect

The correlation between the magnetic properties and the interelement separation in patterned arrays of ultrathin single crystal Fe films of 12 monolayers (ML) grown on GaAs(100) has been studied. The critical condition to form single domain remanent states in the square elements was found to be 10 {mu}m in size and 20 {mu}m for the interelement separation. The coercivity was also found to increase with the increasing interelement separation in the patterned arrays. These results are attributed to the competition between the large in-plane uniaxial anisotropy, the demagnetizing field, and interelement dipole coupling as determined semiqualitatively by the ferromagnetic resonance measurements.

Sun Li; Zhai Ya [Department of Physics, Southeast University, Nanjing 211189 (China); Department of Electronics, Spintronics and Nanodevice Laboratory, University of York, York YO10 5DD (United Kingdom); Wong Pingkwanj; Zhang Wen; Xu Yongbing [Department of Electronics, Spintronics and Nanodevice Laboratory, University of York, York YO10 5DD (United Kingdom); Zou Xiao; Wu Jing [Department of Physics, University of York, York YO10 5DD (United Kingdom); Luo Linqiang; Zhai Hongru [National Laboratory of Solid Microstructures, Nanjing University, Nanjing 210093 (China)

2011-02-01T23:59:59.000Z

458

Morphotropic Phase Boundaries in Ferromagnets: Tb1 xDyxFe2 Alloys  

SciTech Connect

The structure and properties of the ferromagnet Tb1 xDyxFe2 are explored through the morphotropic phase boundary (MPB) separating ferroic phases of differing symmetry. Our synchrotron data support a first order structural transition, with a broadening MPB width at higher temperatures. The optimal point for magnetomechanical applications is not centered on the MPB but lies on the rhombohedral side, where the high striction of the rhombohedral majority phase combines with the softened anisotropy of the MPB. We compare our findings with single ion crystal field theory and with ferroelectric MPBs.

Bergstrom, Richard [University of Maryland; Wuttig, Manfred [University of Maryland; Cullen, James [University of Maryland; Zavalij, Peter [University of Maryland; Dennis, Cindi [National Institute of Standards and Technology (NIST), Gaithersburg, MD; Garlea, Vasile O [ORNL; Laver, Mark [University of Maryland

2013-01-01T23:59:59.000Z

459

TEM Study of Fracturing in Spherical and Plate-like LiFePO4Particles  

Science Conference Proceedings (OSTI)

An investigation of fracturing in LiFePO{sub 4} particles as a function of the particle morphology and history is presented. Two types of samples, one subjected to electrochemical cycling and another to chemical delithiation are compared. We observe the formation of micro fractures parallel to low indexed lattice planes in both samples. The fracture surfaces are predominantly parallel to (100) planes in the chemically delithiated powder and (100) and (010) planes in the electrochemically cycled powder. A consideration of the threshold stresses for dislocation glide shows that particle geometry plays an important role in the observed behavior.

Gabrisch, H.; Wilcox, J.; Doeff, M.M.

2007-12-20T23:59:59.000Z

460

An NMR investigation of superconductivity and antiferromagnetism in CaFe2As2 under pressure  

Science Conference Proceedings (OSTI)

We report {sup 75}As NMR measurements in CaFe{sub 2}As{sub 2}, made under applied pressures up to 0.83 CPa produced by a standard clamp pressure cell. Our data reveal phase segregation of paramagnetic (PM) and antiferromagnetic (AFM) phases over a range of pressures, with the AFM phase more than 90% dominant at low temperatures. In situ RF susceptibility measurements indicate the presence of superconductivity. {sup 75}As spin-lattice relaxation experiments indicate that the {sup 75}As nuclei sample the superconductivity while in the magnetically-ordered environment.

Baek, Seung H [Los Alamos National Laboratory; Lee, Han O [Los Alamos National Laboratory; Bauer, E D [Los Alamos National Laboratory; Ronning, F [Los Alamos National Laboratory; Park, T [Los Alamos National Laboratory; Thompson, J D [Los Alamos National Laboratory; Brown, S E [UCLA; Curro, N J [UC DAVIS

2009-01-01T23:59:59.000Z

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