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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:
;
Issue Date:
Research Org.:
GM Global Technology Operations LLC, Detroit, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1471667
Patent Number(s):
10,062,482
Application Number:
14/834,861
Assignee:
GM Global Technology Operations LLC (Detroit, MI)
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.
Zhou, Chen, & Pinkerton, Frederick E. Rapid consolidation method for preparing bulk metastable iron-rich materials. United States.
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.
@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 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
  • DOI: 10.1016/j.jmmm.2014.06.041

Magnetic properties of CeFe11−xCoxTi 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
  • DOI: 10.1063/1.4863382

Magnetic hardening of Ce1+xFe11−yCoyTi 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
  • DOI: 10.1063/1.4918562