NdFeB粘结磁体的使用温度及磁性能  

Magnetic properties and service temperature of bonded NdFeB magnetic composites

作　　者：杨留栓[1] 史新伟[1] 黄金亮[1] 李杏瑞[1] 殷镖[1] 

机构地区：[1]洛阳工学院材料科学与工程系,洛阳471003

出　　处：《中国有色金属学报》2002年第z1期67-69,共3页The Chinese Journal of Nonferrous Metals

基　　金：河南省自然科学基金资助项目 ( 0 0 40 4130 0 )

摘　　要：对磁粉进行表面处理 ,利用冷、热模压法制备了金属基及塑料基两种粘结NdFeB磁体 ,研究了表面处理前后及不同基体磁体的使用温度和磁性能。研究结果表明 :磁粉的表面处理可以提高磁体的磁性能及使用温度 ,塑料基磁体的磁性能低于金属基磁体的 ,但其使用温度却较高 ,可达 180℃左右。The rapidly-quenched NdFeB magnetic powders were surface-treated. Two kinds of NdFeB magnets based on metal and plastic were prepared by cold molding and hot molding, respectively. The service temperature and magnetic properties before and after the surface treatment with different matrix were studied.The results show that the temperature stability and the magnetic properties of the magnets can be improved by the surface treatment of the magnetic powders. The magnetic properties of the magnets based on plastic are lower than those based on metal,but the service temperature of the magnets based on the plastic is increased greatly.Its usable temperature can reach 180?℃.

关 键 词：表面处理 粘结 NDFEB 磁性材料 使用温度 性能 

分 类 号：TG145.2[一般工业技术—材料科学与工程]