摘要
综述了稀土永磁材料研究的新进展 ,重点介绍了具有磁交换耦合作用的新型纳米复合永磁体。通过列举一些典型永磁体合金和其磁性能 ,讨论了不同合金成分、制备工艺以及添加微量元素对磁性材料微观结构和磁性能的影响。同时说明了在纳米复合永磁材料中硬磁相与软磁相间的磁交换耦合作用机理 ,以及交换耦合作用对纳米复合永磁材料磁性能的影响。
Recent research progress in rare-earth permanent magnetic materials is reviewed, with special emphasis focused on the new rare-earth based magnetic exchange-coupling nano-composites. Some typical permanent magnetic alloys and their properties are exemplified. The effects of alloy composition, processing route, and various transition elements addition on the microstructure and magnetic properties of magnets are discussed. The mechanism of magnetic exchange-coupling between the hard and the soft magnetic phase in the nano-composite materials and the effect of such exchange-coupling on the magnetic properties of the nano-composite magnets are explained.
出处
《粉末冶金技术》
EI
CAS
CSCD
北大核心
2005年第1期55-61,共7页
Powder Metallurgy Technology
基金
教育部及黑龙江省归国学者基金 (LC0 2C0 6 )
哈尔滨工业大学交叉学科基金项目 (HIT MD2 0 0 1 0 9)
