The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 19, 2017

Filed:

Sep. 23, 2016
Applicants:

Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);

The University of Manitoba, Winnipeg, CA;

Inventors:

Michael Paul Rowe, Pinckney, MI (US);

Elizabeth Marie Skoropata, Winnipeg, CA;

Johan Alexander van Lierop, Winnipeg, CA;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22F 9/24 (2006.01); H01F 1/03 (2006.01); B22F 1/00 (2006.01); C22F 1/16 (2006.01); B22F 9/04 (2006.01); C22C 22/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/03 (2013.01); B22F 1/0085 (2013.01); B22F 9/04 (2013.01); C22C 22/00 (2013.01); C22F 1/16 (2013.01); B22F 2009/043 (2013.01);
Abstract

A novel ferromagnetic phase of manganese-bismuth alloy has an NiAs-type unit cell structure, similar to that of Low Temperature Phase manganese-bismuth, but with manganese atoms populating interstitial sites. The novel phase, termed β-MnBi, possesses maximum magnetic coercivity at unusually high temperature. A method for forming β-MnBi includes annealing MnBi nanoparticles, for example by hot compaction, at temperature lower than 175° C.


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