摘要
研究了具有较低温度系数的稀土永磁体,包括低矫顽力温度系数的Nd2Fe14B/Fe3B-ferrite复合粘结磁体和低剩磁温度系数的Sm0.8RE0.2(CobalFe0.22Cu0.06Zr0.03)7.4(RE为Gd,Er)烧结磁体。实验表明,添加矫顽力温度系数jβHc为正数的铁氧体磁粉可将粘结磁体的矫顽力温度系数值减小。还讨论了固溶处理对2∶17型Sm-Co烧结磁体磁性能的影响以及添加重稀土元素部分替代钐,对提高温度稳定性的作用。
The rare-earth hard magnets with lower temperature coefficient, including Nd2Fe14B/Fe3B-ferrite compound bonded magnets and Sm0.8RE0.2（CobalFe0.22Cu0.06Zr0.03）7.4 （ RE = Gd, Er） sintered magnets, were studied. The results show that doping ferrite magnetic powder to double-phase nanocomposite Nd2Fe14 B/Fe3B magnetic powder, can make βjHc obviously decreased. Similarly, the effect of homogeneous heating treatment on magnetic properties was studied. The attempt, doping heavy rare earth elememts to the 2 ： 17 type SmCo magnet material powders, shows that the sintered magnets have lower temperature coefficient, and enhanced temperature stability.
出处
《钢铁研究学报》
CAS
CSCD
北大核心
2006年第1期50-53,共4页
Journal of Iron and Steel Research
关键词
温度系数
稀土永磁体
固溶处理
temperature eoeffieient
rare-earth hard magnet
homogeneous heating treatment
