Effect of Co on the thermal stability and impact toughness of sintered Nd-Fe-B magnets

被引：26

作者：

Hu, Z.H. ^{[1
,2
]}

Lian, F.Z. ^{[1
]}

Zhu, M.G. ^{[2
]}

Li, W. ^{[2
]}

机构：

[1] Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang

[2] Division of Functional Materials, Central Iron and Steel Research Institute, Beijing

来源：

Journal of Magnetism and Magnetic Materials | 2008年 / 320卷 / 19期

基金：

中国国家自然科学基金;

关键词：

Impact toughness; Intrinsic coercivity; Microstructure; Sintered Nd-Fe-B magnets; Temperature coefficient;

D O I：

10.1016/j.jmmm.2008.05.001

中图分类号：

学科分类号：

摘要：

The effect of Co on the thermal stability and impact toughness of sintered Nd-Fe-B magnets has been investigated. The results showed that the addition of Co decreased the intrinsic coercivity and the temperature coefficient of remanence (α), and increased the temperature coefficient of coercivity (β) for sintered Nd-Fe-B magnets. The impact toughness of sintered Nd-Fe-B magnets with the addition of Co first decreases, reaches a minimum, and then starts to increase. The possible reasons for increasing the temperature coefficients of coercivity (β) for sintered Nd-Fe-B magnets were analyzed, and the relations between the microstructure and impact toughness of sintered Nd-Fe-B magnets were studied. © 2008 Elsevier B.V. All rights reserved.

引用

页码：2364 / 2367

页数：3

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