纳米晶复合永磁材料磁性能的模拟研究  

Computer simulation of magnetic properties of nanocomposite magnets

作　　者：张静贤[1] 张同俊[1] 崔崑[1] 

机构地区：[1]华中科技大学模具技术国家实验室,武汉430074

出　　处：《中国有色金属学报》2001年第z2期265-268,共4页The Chinese Journal of Nonferrous Metals

基　　金：高等学校博士点基金资助项目 (970 4872 5 )

摘　　要：采用计算机模拟的方法计算了纳米晶复合永磁材料的磁性能 ,并对软磁相比例对磁性能的影响进行了研究。结果显示 ,当软磁相比例增加时 ,由于软磁相高的饱和磁极化强度以及软硬磁相间的交换耦合作用的影响 ,剩磁逐渐增加 ,但矫顽力则随着软磁相的增加而逐渐下降。Magnetic properties of a model nanocomposite magnet were calculated by means of computer simulation, and the effects of the amount of the soft magnetic phase on them were studied. The numerical results show that the remanence enhances with the increase of the soft grains, it is due to the high spontaneous magnetication of soft magnetic phases and exchange interactions, but the coercivity decreases. [

关 键 词：纳米晶复合磁体 计算机模拟 剩磁增强 矫顽力 

分 类 号：TG132.2+7[一般工业技术—材料科学与工程] TP391.9[金属学及工艺—合金]