| 简介 |
In rare-earth permanent magnets, it is difficult to achieve both high magnetization and high retentivity. The present invention provides a rare-earth magnet material in which reduction in coercivity is minimized while maintaining high magnetization by varying the thickness of a nonmagnetic phase formed on the surface of each main-phase crystal grain depending on the position of the crystal grain surface, and thereby minimizing the amount of the nonmagnetic phase while minimizing reduction in coercivity. |
客服热线：
手机版
二维码
