Effect of La-Y co-substitution on magnetic properties and microstructure of NdFeB alloy ribbons

被引：7

作者：

Zhao, Chuanjia ^{[1
,2
]}

Jiang, Qingzheng ^{[1
,2
,3
]}

Rehman, Sajjad Ur ^{[1
,2
]}

Li, Xiang ^{[1
,2
]}

Chen, Youwei ^{[1
,2
]}

Song, Jie ^{[1
,2
]}

Zhong, Zhenchen ^{[1
,2
]}

机构：

[1] Jiangxi Univ Sci & Technol, Jiangxi Key Lab Rare Earth Magnet Mat & Devices, Ganzhou 341000, Peoples R China

[2] Jiangxi Univ Sci & Technol, Coll Rare Earths, Ganzhou 341000, Peoples R China

[3] Fujian Key Lab Rare Earth Funct Mat, Longyan 366300, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2022年 / 40卷 / 12期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Magnetic properties; Microstructure; Alloy ribbons; Main phase; Exchange coupling; Rare earths; FE-B MAGNETS; PERMANENT-MAGNETS; THERMAL-STABILITY; SINTERED MAGNETS; ND; PHASE;

D O I：

10.1016/j.jre.2021.11.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Committed to obtaining cost-effective NdFeB based permanent magnets, Nd27-xLa3YxFebalAl0.1Cu0.1B1 (x = 0-3) alloys were fabricated to detect the magnetic properties and microstructure. When x = 1.8, coercivity of 1004 kA/m and the magnetic remanence of 0.75 T are obtained, which are close to those of the original Nd30FebalAl0.1Cu0.1B1 alloy ribbons. The temperature coefficient of coercivity (beta) and the temperature coefficient of remanence (alpha) of the LaY-substituted alloys are better than those of the original alloys. The research results manifest that La is mainly distributed in the grain boundary phases and plays the role of refining the main grains, optimizing the grain boundary phases and improving the wettability between the main phases and the grain boundary phases, while Y tends to enrich in the main phases and enhances the short-range exchange coupling. (c) 2021 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

引用

页码：1894 / 1898

页数：5

共 35 条

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