Rapid consolidation method for preparing bulk metastable iron-rich materials

Zhou, Chen; Pinkerton, Frederick E.

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Title: Rapid consolidation method for preparing bulk metastable iron-rich materials

Abstract

Interstitially modified compounds of rare earth element-containing, iron-rich compounds may be synthesized with a ThMn.sub.12 tetragonal crystal structure such that the compounds have useful permanent magnet properties. It is difficult to consolidate particles of the compounds into a bulk shape without altering the composition and magnetic properties of the metastable material. A combination of thermal analysis and crystal structure analysis of each compound may be used to establish heating and consolidation parameters for sintering of the particles into useful magnet shapes.

Inventors:: Zhou, Chen; Pinkerton, Frederick E.

Issue Date:: 2018-08-28

Research Org.:: GM Global Technology Operations LLC, Detroit, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1471667

Patent Number(s):: 10062482

Application Number:: 14/834,861

Assignee:: GM Global Technology Operations LLC (Detroit, MI)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F3/105 - by using electric current {other than for infra-red radiant energy}, laser radiation or plasma

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C2202/02 - Magnetic
C22C38/001 - {containing N}
C22C38/005 - {containing rare earths, i.e. Sc, Y, Lanthanides}
C22C38/12 - containing tungsten, tantalum, molybdenum, vanadium, or niobium

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
H01F1/0557 - {sintered}
H01F1/0593 - {of tetragonal ThMn12-structure}
H01F41/0266 - {Moulding

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DOE Contract Number:: AR0000195

Resource Type:: Patent

Resource Relation:: Patent File Date: 2015 Aug 25

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Zhou, Chen, and Pinkerton, Frederick E. Rapid consolidation method for preparing bulk metastable iron-rich materials.  United States: N. p., 2018. 
        Web.

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                    Zhou, Chen, & Pinkerton, Frederick E. Rapid consolidation method for preparing bulk metastable iron-rich materials.  United States.

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                    Zhou, Chen, and Pinkerton, Frederick E. Tue .  
        "Rapid consolidation method for preparing bulk metastable iron-rich materials".  United States.  https://www.osti.gov/servlets/purl/1471667.

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@article{osti_1471667,

  title        = {Rapid consolidation method for preparing bulk metastable iron-rich materials},

  author       = {Zhou, Chen and Pinkerton, Frederick E.},

  abstractNote = {Interstitially modified compounds of rare earth element-containing, iron-rich compounds may be synthesized with a ThMn.sub.12 tetragonal crystal structure such that the compounds have useful permanent magnet properties. It is difficult to consolidate particles of the compounds into a bulk shape without altering the composition and magnetic properties of the metastable material. A combination of thermal analysis and crystal structure analysis of each compound may be used to establish heating and consolidation parameters for sintering of the particles into useful magnet shapes.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {8}

}

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Works referenced in this record:

Magnetic hardening of Ce_1+xFe_11−yCo_yTi with ThMn₁₂ structure by melt spinning
journal, May 2015

Zhou, Chen; Sun, Kewei; Pinkerton, Frederick E.
Journal of Applied Physics, Vol. 117, Issue 17, Article No. 17A741
https://doi.org/10.1063/1.4918562

Permanent-magnet materials: Research directions and opportunities
journal, May 1997

Richman, R. H.; McNaughton, W. P.
Journal of Electronic Materials, Vol. 26, Issue 5
https://doi.org/10.1007/s11664-997-0112-x

Permanent magnet
patent-application, September 2001

Mei, Wu; Sakamoto, Toshiya; Sakurada, Shinya
US Patent Application 09/749803; 20010020495
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20010020495

Cerium-Iron-Based Magnetic Compounds
patent-application, September 2014

Zhou, Chen; Pinkerton, Frederick E.; Herbst, Jan F.
US Patent Application 13/786807; 20140251500
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20140251500

Multielement interstitial hard magnetic material and process for producing magnetic powder and magnet using the same
patent, July 2002

Yang, Yingchang; Cheng, Benpei; Ge, Senlin
US Patent Document 6,419,759
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6419759

Metal-Bonded-Re-Fe-B Magnets
patent-application, November 2016

Kelhar, Luka; McGuinnes, Paul; Kobe, Spomenka
US Patent Application 14/700450; 20160322136
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20160322136

Magnetic properties of Ce–Nd–Fe–Mo alloys and their nitrides
journal, November 2014

Zhou, Chen; Pinkerton, Frederick E.
Journal of Magnetism and Magnetic Materials, Vol. 369, p. 127-131
https://doi.org/10.1016/j.jmmm.2014.06.041

Magnetic materials and processes for their production
patent, December 1995

Coey, John Michael David; Sun, Hong; Hurley, David Patrick
US Patent Document 5,478,411
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5478411

Magnetic properties of CeFe_11−xCo_xTi with ThMn₁₂ structure
journal, May 2014

Zhou, Chen; Pinkerton, Frederick E.; Herbst, J. F.
Journal of Applied Physics, Vol. 115, Issue 17, Article No. 17C716
https://doi.org/10.1063/1.4863382

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Title: Rapid consolidation method for preparing bulk metastable iron-rich materials

Abstract

Citation Formats

Magnetic hardening of Ce1+xFe11−yCoyTi with ThMn12 structure by melt spinning journal, May 2015

Permanent-magnet materials: Research directions and opportunities journal, May 1997

Permanent magnet patent-application, September 2001

Cerium-Iron-Based Magnetic Compounds patent-application, September 2014

Multielement interstitial hard magnetic material and process for producing magnetic powder and magnet using the same patent, July 2002

Metal-Bonded-Re-Fe-B Magnets patent-application, November 2016

Magnetic properties of Ce–Nd–Fe–Mo alloys and their nitrides journal, November 2014

Magnetic materials and processes for their production patent, December 1995

Magnetic properties of CeFe11−xCoxTi with ThMn12 structure journal, May 2014

Magnetic hardening of Ce_1+xFe_11−yCo_yTi with ThMn₁₂ structure by melt spinning
journal, May 2015

Permanent-magnet materials: Research directions and opportunities
journal, May 1997

Permanent magnet
patent-application, September 2001

Cerium-Iron-Based Magnetic Compounds
patent-application, September 2014

Multielement interstitial hard magnetic material and process for producing magnetic powder and magnet using the same
patent, July 2002

Metal-Bonded-Re-Fe-B Magnets
patent-application, November 2016

Magnetic properties of Ce–Nd–Fe–Mo alloys and their nitrides
journal, November 2014

Magnetic materials and processes for their production
patent, December 1995

Magnetic properties of CeFe_11−xCo_xTi with ThMn₁₂ structure
journal, May 2014