摘要
研究了添加Ｄｙ和Ｎｂ对纳米复合Ｐｒ２Ｆｅ１４Ｂ／α－Ｆｅ永磁合金形成、组织结构及磁性能的影响。研究表明，对于三元的Ｐｒ９Ｆｅ８５Ｂ６非晶带的晶化过程，在α－Ｆｅ相初始晶化之后，晶化最终产物Ｐｒ２Ｆｅ１４Ｂ＋α－Ｆｅ形成之前出现Ｐｒ２Ｆｅ２３Ｂ３亚稳相。而添加Ｄｙ或同时添加Ｄｙ和Ｎｂ后晶化过程不出现亚稳相。添加Ｄｙ和Ｎｂ元素显著地提高了纳米复合永磁合金的磁性能。
The effects of Dy and Nb addition on the formation,microstructure and magnetic properties of 2Pr_2Fe_14B/α-Fe nanocomposites have been invedtigated.It was found that for the ternary Pr _9Fe_85 B_6 ribbons,the metastable Pr_2Fe_23 B_3 phase occurs after the initial crystallization of α-Fe and prior o the formation of the finial mixture of Pr_2Fe_14 B and both Dy and Nb substituted ribbons.The addition of both Dy and Nb can cause significant improvement of the magnetic properties.
出处
《金属功能材料》
CAS
1998年第2期62-64,共3页
Metallic Functional Materials
基金
国家自然科学基金
关键词
纳米复合磁体
剩磁增强
永磁合金
铌
镝
Dy and Nb substitution,nanocomposite magnets,remanence enhancement
