Overview of composition and technique process study on 2:17-type Sm-Co high-temperature permanent magnet

被引：28

作者：

Wang, Chao ^{[1
]}

Zhu, Ming-Gang ^{[1
]}

机构：

[1] Cent Iron & Steel Res Inst, Div Funct Mat, Beijing 100081, Peoples R China

来源：

RARE METALS | 2021年 / 40卷 / 04期

基金：

中国国家自然科学基金;

关键词：

2; 17-type Sm-Co magnet; High temperature; Coercivity temperature coefficient; Coercivity mechanism; INTRINSIC-COERCIVITY; SINTERED MAGNETS; MICROSTRUCTURE; CU; PERFORMANCE; DEPENDENCE; FE; ZR; SM(CO; ZR)(Z); STABILITY;

D O I：

10.1007/s12598-020-01514-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sm-Co permanent magnets are widely used in aerospace equipments, tubes, sensors and hybrid electric vehicles due to their excellent magnetic properties at both room and high temperatures. Compared to that of Nd-Fe-B magnets, the capability of reliably operating at temperatures up to 500 degrees C is the biggest preponderance of Sm-Co permanent magnets. However, the reliable high-temperature magnetic properties are susceptible to composition and technique processes. So, appropriate composition and matched technique processes are prerequisites for good high-temperature magnetic properties. This review mainly emphasizes the influences of Sm, Fe, Cu and Zr contents and technique processes on development of high-temperature performance and discusses the controversial high-temperature coercivity mechanism of 2:17-type high-temperature Sm-Co magnets.

引用

页码：790 / 798

页数：9

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