摘要
纳米复合永磁材料兼具硬磁性相的高矫顽力和软磁性相的高饱和磁化强度,磁性能优异。本文综述了纳米复合永磁材料的磁性相晶粒间的交换耦合作用、矫顽力机制、微磁学模拟等理论方面的研究进展,同时论述了成分、添加元素、制备工艺对材料微观结构和磁性能的影响,着重介绍了最有应用价值的快淬法磁粉制备工艺。
Nanocomposite permanent magnet exhibits excellent magnetic properties combining high coercivity of permanent magnetic phase with high saturation magnetization of soft magnetic phase. The advances in theory including exchange-coupling interaction between magnetic phases, coercivity mechanism and computer-aided micromagnetic simulation and the effects of components, element additions and fabrication technology on the microstructure and magnetic properties are reviewed in this article. Melt spinning is introduced in detail, which is believed to be the most valuable application method.
出处
《磁性材料及器件》
CAS
CSCD
2006年第2期5-8,13,共5页
Journal of Magnetic Materials and Devices
基金
四川省杰出青年基金资助项目(02ZQ026-047)
四川省重点科技项目(02GG009-011)
四川省应用基础研究项目(05JY029-072)
关键词
纳米复合永磁材料
交换耦合作用
矫顽力机制
微磁学模拟
快淬法
nanocomposite permanent magnets
exchange-coupling interaction
coercivity mechanism
micromagnetic simulation
melt spinning
