发明公开
- 专利标题： NDFEB ALLOY POWDER FOR FORMING HIGH-COERCIVITY SINTERED NDFEB MAGNETS AND USE THEREOF
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申请号： EP21189825.9申请日： 2021-08-05
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公开(公告)号： EP3955268A1公开(公告)日： 2022-02-16
- 发明人: Yang, Kunkun , Peng, Zhongjie , Ding, Kaihong
- 申请人： Yantai Shougang Magnetic Materials Inc.
- 申请人地址： CN 265500 Yantai 888 Yongda St., Fushan Dist.,
- 代理机构： Gulde & Partner
- 优先权： CN202010792279 20200808
- 主分类号： H01F1/057
- IPC分类号： H01F1/057
摘要：
The invention provides a novel NdFeB alloy powder for forming high-coercivity sintered NdFeB magnets. The NdFeB alloy powder includes NdFeB alloy core particles with a mixed metal coating. The mixed metal coating is formed by simultaneously vapor deposition of
a) at least one high-melting metal M selected from the group consisting of Mo, W, Zr, Ti, and Nb; and
b) at least one metal R, where R is selected from the group consisting of Pr, Nd, La, and Ce; or
a metal alloy RX, where X is one selected from the group consisting of Cu, Al, and Ga and R is at least one selected from the group consisting of Pr, Nd, La, and Ce.
a) at least one high-melting metal M selected from the group consisting of Mo, W, Zr, Ti, and Nb; and
b) at least one metal R, where R is selected from the group consisting of Pr, Nd, La, and Ce; or
a metal alloy RX, where X is one selected from the group consisting of Cu, Al, and Ga and R is at least one selected from the group consisting of Pr, Nd, La, and Ce.
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