烧结稀土钕铁硼磁体的物理稳定性与提升方法探讨

doi:10.13251/j.issn.0254-6051.2023.10.001

金属热处理 ›› 2023, Vol. 48 ›› Issue (10): 8-14.DOI: 10.13251/j.issn.0254-6051.2023.10.001

烧结稀土钕铁硼磁体的物理稳定性与提升方法探讨

吴玉程^1,2, 刘家琴^2,3

1.合肥工业大学材料科学与工程学院, 安徽合肥 230009;
2.有色金属材料与加工国家地方联合工程研究中心, 安徽合肥 230009;
3.安徽省先进复合材料设计与应用工程研究中心, 安徽合肥 230051

收稿日期:2023-08-31 修回日期:2023-09-13 出版日期:2023-10-25 发布日期:2023-12-07
通讯作者: 刘家琴,教授,博士,E-mail:jqliu@hfut.edu.cn
作者简介:吴玉程(1962—),男,教授,博士,主要研究方向为能源材料、高性能粉末冶金,E-mail:ycwu@hfut.edu.cn。
基金资助:
国家自然科学基金(20571022);安徽省重点研究与开发计划(1704a0902020,202104a05020019);安徽省重大专项(17030901063,18030901098)

Discussions of physical stability and increasing routes of sintered rare-earth NdFeB magnets

Wu Yucheng^1,2, Liu Jiaqin^2,3

1. School of Materials Science and Engineering, Hefei University of Technology, Hefei Anhui 230009, China;
2. National-Local Joint Research Center of Nonferrous Metal Materials and Processing Technology, Hefei Anhui 230009, China;
3. Engineering Research Center of Advanced Composite Materials Design & Application of Anhui Province, Hefei Anhui 230051, China

Received:2023-08-31 Revised:2023-09-13 Online:2023-10-25 Published:2023-12-07

摘要/Abstract

摘要： 烧结稀土钕铁硼作为一种重要的功能材料,被广泛应用于汽车、医疗器械和航空航天等领域。本文综述了烧结稀土钕铁硼的制备与应用、物理稳定性控制,通过粉末冶金制备工艺,优化稀土钕铁硼合金成分和调控晶界结构,探索影响其稳定性的微观机理,分析烧结钕铁硼磁体在不同条件下的稳定性,指出稀土钕铁硼磁材的化学成分、微观组织结构对其磁场稳定性和温度稳定性的作用。

关键词: 稀土, 烧结钕铁硼, 物理稳定性, 提升方法

Abstract: Sintered rare-earth NdFeB is an important functional material, which is broadly applied in automobile, medical equipment and aerospace fields etc. The preparation, application and control of physical stability were reviewed through involving in optimizing the composition and tailoring grain boundary structure, exploring the effects on micro mechanism of the stability through powder metallurgy route. The influence of chemical composition and microstructure on the stability of the magnetic fields and temperature was concluded by analysing the stability of sintered Nd-Fe-B magnets under different conditions.

Key words: rare-earth, sintered NdFeB, physical stability, rising routes

中图分类号:

TG146.4

吴玉程, 刘家琴. 烧结稀土钕铁硼磁体的物理稳定性与提升方法探讨[J]. 金属热处理, 2023, 48(10): 8-14.

Wu Yucheng, Liu Jiaqin. Discussions of physical stability and increasing routes of sintered rare-earth NdFeB magnets[J]. Heat Treatment of Metals, 2023, 48(10): 8-14.

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烧结稀土钕铁硼磁体的物理稳定性与提升方法探讨

Discussions of physical stability and increasing routes of sintered rare-earth NdFeB magnets

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