晶粒尺寸及取向对钕铁硼磁体磁性能的影响  

Effect of Size and Orientation of the Grain on theMagnetic Properties for the Sintered NdFeB Magnets

作　　者：张建成[1] 李卫[2] 李岫梅[2] 高汝伟[1] 

机构地区：[1]山东大学物理系,济南250100 [2]钢铁研究总院新材料所,北京100081

出　　处：《金属功能材料》1999年第1期17-20,共4页Metallic Functional Materials

摘　　要：研究了烧结钕铁硼磁体晶粒尺寸及取向对其性能的影响。随着晶粒尺寸的减小，矫顽力大幅度增加，剩磁微弱增强，晶粒取向磁体的剩磁明显大于未取向磁体的剩磁，而取向磁体的矫顽力小于未取向磁体的矫顽力。The effect of she and orientation of the grain on the magnetic properties of the sinteredNdFeB magnets is studied. Experiments showed that for the sintered NdFeB magnet coercivity increases greatly and remanent magnetization increases slightly as the grain size decreases. The remanentmagnetization of the oriented magnet is larger than that of the nonorientated magnet, but the coercivityof the magnet has an opposite tendency comparing with the remanence.

关 键 词：晶粒尺寸 晶粒聚向 磁性能 NDFEB 永磁材料 

分 类 号：TM273.014[一般工业技术—材料科学与工程]