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

Abstract

A permanent magnet may include a Fe16N2 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 Fe16N2 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.

Inventors:
; ;
Issue Date:
Research Org.:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1473692
Patent Number(s):
10068689
Application Number:
14/238,835
Assignee:
Regents of the University of Minnesota (Minneapolis, MN)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
DOE Contract Number:  
AR0000199
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Aug 17
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Wang, Jian-Ping, He, Shihai, and Jiang, Yanfeng. Iron nitride permanent magnet and technique for forming iron nitride permanent magnet. United States: N. p., 2018. Web.
Wang, Jian-Ping, He, Shihai, & Jiang, Yanfeng. Iron nitride permanent magnet and technique for forming iron nitride permanent magnet. United States.
Wang, Jian-Ping, He, Shihai, and Jiang, Yanfeng. Tue . "Iron nitride permanent magnet and technique for forming iron nitride permanent magnet". United States. https://www.osti.gov/servlets/purl/1473692.
@article{osti_1473692,
title = {Iron nitride permanent magnet and technique for forming iron nitride permanent magnet},
author = {Wang, Jian-Ping and He, Shihai and Jiang, Yanfeng},
abstractNote = {A permanent magnet may include a Fe16N2 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 Fe16N2 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {9}
}

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