重稀土晶界扩散工艺制备高矫顽力钕铁硼磁体研究进展与应用现状

doi:10.11896/cldb.24040174

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Abstract The grain boundary diffusion process (GBDP) of heavy rare earth elements such as Dy and Tb into Nd-Fe-B permanent magnets is the most important approach to enhance the magnets with high coercive force. This paper briefly introduces the concept of GBDP and the application status in the manufacture of high-performance sintered Nd-Fe-B permanent magnets. The latest representative research results in recent years are analyzed, and several possible problems that need to be overcome are presented. This review has certain guiding significance for the further development of high performances Nd-Fe-B magnetic materials.

Key words： sintered Nd-Fe-B permanent magnet grain boundary diffusion process heavy rare earth elements

Published: 25 March 2025 Online: 2025-03-24

CLC number:

TF124

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	Articles by authors
	TIAN Guangke
	LU Zhongdi
	CHAI Peizhao
	WANG Yu
	XU Yi
	XIA Yuan

Cite this article:

TIAN Guangke,LU Zhongdi,CHAI Peizhao, et al. Developments and Applications of Preparing High Coercive Nd-Fe-B Magnets via Heavy Rare Earth Grain Boundary Diffusion Process[J]. Materials Reports, 2025, 39(6): 24040174-6.

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https://www.mater-rep.com/EN/10.11896/cldb.24040174 OR https://www.mater-rep.com/EN/Y2025/V39/I6/24040174

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