Temperature stability and toughness of magnets are very important properties especially for application in motor. In this paper, it is found that temperature stability and toughness of magnets are improved when Fe is substituted with Co andheavy rare earth is substituted for Nd in part and suitable rich B grain-boundary phase is added. In addition, heavy rare earth substitution decreases the remanence temperature coefficient greatly, but has a little effect on Curie temperature of the magnets, which is beneficial to Nd-Fe-B magnets for the application in motor.
参考文献
| [1] | Herbst J F R .Fe B materials:Intrinsic properties and technological aspects[J].Reviews of Modern Physics,1991,63:819. |
| [2] | Zhou Shouzeng;Dong Qingfei.High Performance Permanent Magnets-Rare Earth Fe-type Permanent Magnets[M].北京:冶金工业出版社,2000 |
| [3] | Li Anhua;Li Wei;Dong Shengzhi et al.[J].Journal of Magnetism and Magnetic Materials,2003,265:331. |
| [4] | Tang W;Dennis K W;Wu Y Q et al.Studies of new Ydy-based R2Fe14B magnets for high temperature performance(R=Y+Dy+Nd)[J].IEEE Transactions on Magnetics,2004,40:2907. |
| [5] | Arai A;Kobayashi O;Takagi F et al.Mechanical properties of hot-rolled Pr-Fe-B-Cu magnets[J].Journal of Applied Physics,1994,75:6631. |
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