Enormous improvement of the coercivity of Ga and Cu co-doping Nd-Fe-B sintered magnet by post-sinter annealing

Qingfang Huang,Qingzheng Jiang,Yao Shi, Sajjad Ur Rehman,Xing Wei,Zhixiang Li,Dawei Shi,Deqin Xu,Zhenchen Zhong

Journal of Alloys and Compounds（2022）

引用 12|浏览11

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摘要

•The effects of annealing on the microstructures and magnetic properties of Ga and Cu co-added Nd-Fe-B magnet were investigated.•The intrinsic coercivity increases from 9.17 kOe to 18.67 kOe after annealing, which shows an increment of 103.5%.•The main reasons for the substantial increase of intrinsic coercivity are discussed.

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关键词

Magnetic properties,Nd-Fe-B magnet,Microstructure,Post-sinter annealing,Coercivity

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