粘结NdFeB磁体用偶联剂  

The Coupling Agents Used In Bonded NdFeB Magnets

作　　者：张虹[1] 白书欣[1] 韩晓静 赵恂[1] 谢凯[1] 夏立芳[2] 雷廷权[2] 许根生 舒阳会 

机构地区：[1]国防科技大学材料科学与应用化学系,湖南长沙410073 [2]哈尔滨工业大学,黑龙江哈尔滨150001 [3]中国航天磁材器件生产技术中心,湖南长沙410205

出　　处：《磁性材料及器件》2001年第2期9-12,共4页Journal of Magnetic Materials and Devices

摘　　要：粘结 Nd Fe B的制备工艺中磁粉的表面预处理是非常重要的 ,选用钛酸酯与硅烷偶联剂进行了对比实验。结果表明 ,经钛酸酯处理过的磁体磁性能较高 ,用硅烷处理过的磁体抗压强度较高。Prior treatment of NdFeB powders is vital to the preparation of bonded NdFeB magnets. This paper presents the effect of titanate and silane coupling agents on the properties of bonded NdFeB. It is shown that the magnet made of powders treated with titanate coupling agents got higher magnetic properties, while the magnet made of powders treated with silane coupling agents got higher strength. The effecting mechanism of coupling agents is analysed.

关 键 词：粘结NDFEB 磁粉 偶联剂 磁体 钕铁硼 

分 类 号：TM27[一般工业技术—材料科学与工程]