Iron nitride permanent magnet and technique for forming iron nitride permanent magnet

Title: Iron nitride permanent magnet and technique for forming iron nitride permanent magnet

A permanent magnet may include a Fe ₁₆N ₂ phase constitution. In some examples, the permanent magnet may be formed by a technique that includes straining an iron wire or sheet comprising at least one iron crystal in a direction substantially parallel to a <001> crystal axis of the iron crystal; nitridizing the iron wire or sheet to form a nitridized iron wire or sheet; annealing the nitridized iron wire or sheet to form a Fe ₁₆N ₂ phase constitution in at least a portion of the nitridized iron wire or sheet; and pressing the nitridized iron wires and sheets to form bulk permanent magnet.

Issue Date:: 2018-09-04

OSTI Identifier:: 1473692

Assignee:: Regents of the University of Minnesota (Minneapolis, MN) ARPA-E

Patent Number(s):: 10,068,689

Application Number:: 14/238,835

Contract Number:: AR0000199

Resource Relation:: Patent File Date: 2012 Aug 17

Research Org:: Regents of the University of Minnesota, Minneapolis, MN (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

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