摘要
探讨了微量的Ga替代Fe对Nd2 Fe14 B/Fe3B + (少量 )α Fe永磁材料的晶体结构及磁性能的影响。结果表明 :添加微量的Ga同样可减小晶粒尺寸 ;在Ga含量x <1% (原子百分比 )的范围 ,随着x的增加 ,Br 和 (BH) max随晶化时间变化的曲线由非线性向线性转化 ;矫顽力jHc 下降到一个最小值后 ,又缓慢上升 ;当x =0 2时 ,综合磁性能较好。
Effect of the Ga content substituting the Fe on the crystal structure and magnetic properties for the Nd 2Fe 14 B/Fe 3B+(little)α Fe permanent magnetic materials was discussed. The results show that the crystal size was markedly decresed by adding Ga. With the increase of x , the curves of the B r and the ( BH ) max change with annealing time from non linearity to linearity in the Ga content range of x <1at%, the coercive force j H c decreases at first to a minimum and then increaes slowly. The best value of the magnetic properties is obtained while the x =0.2.
出处
《金属功能材料》
CAS
2001年第1期26-29,共4页
Metallic Functional Materials
关键词
双相纳米晶磁体
快淬
晶化
交换耦合
磁性能
钙
dual phase nanocrystalline magnets, melt spin, crystallization, exchange coupling, magnetic properties
