Title:
MN-GA ALLOY AND MAGNETIC HARDENING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/126738
Kind Code:
A1
Abstract:
Disclosed are an Mn-Ga alloy and a magnetic hardening method therefor, belonging to the field of functional materials. The method includes: first obtaining an MnxGa (1.0 ≤ x ≤ 3.0) ingot casting by smelting; subjecting same to a heating treatment at a temperature of 400ºC-650ºC so as to obtain a tetragonal phase; and performing heat deformation on the tetragonal phase alloy block at a temperature of 300ºC-700ºC and a pressure of 30-800 MPa using a spark plasma sintering (SPS) device to obtain a manganese gallium alloy magnet having a relatively large coercivity. The Mn-Ga alloy magnet has relatively high residual magnetism, relatively large coercivity, and a relatively good magnetic energy product, and has application potential in the field of permanent magnetism.
Inventors:
LU QINGMEI (CN)
YUE MING (CN)
LI CHENHUI (CN)
ZHANG HONGGUO (CN)
ZHANG DONGTAO (CN)
YUE MING (CN)
LI CHENHUI (CN)
ZHANG HONGGUO (CN)
ZHANG DONGTAO (CN)
Application Number:
PCT/CN2017/103076
Publication Date:
July 12, 2018
Filing Date:
September 25, 2017
Export Citation:
Assignee:
UNIV BEIJING TECHNOLOGY (CN)
International Classes:
H01F1/147; H01F41/02
Foreign References:
| CN106816253A | 2017-06-09 | |||
| CN101786163A | 2010-07-28 | |||
| CN102651264A | 2012-08-29 | |||
| CN103639415A | 2014-03-19 | |||
| JP5150535B2 | 2013-02-20 |
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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