用快淬急冷技术制备了Nd10 Fe84 -xB6Inx(x =0和 1)系列薄带磁体 .利用添加和挥发微量In元素的方法从宏观表现上研究了晶粒边界对晶粒之间交换耦合和磁硬化等性能的影响 .发现晶粒边界性质以不同方式影响着磁体矫顽力和剩磁比 .某些晶界特性 ,像缺陷、应力等主要影响磁硬化机制 ;而另外一些性能 ,如晶界类型、边界处的自旋取向及结晶学相关性等则控制着交换耦合的强度 The Nd10Fe84-xB6Inx (x = 0 and 1) thin-strip magnets were prepared by quenching and rapid cooling technique. The grain boundaries were studied for the exchange coupling between the grains and the magnetic Hardening and other properties of the grain boundary properties found in different ways affect the coercivity and residual magnetism than some of the grain boundary properties such as defects, stress and other major impact on the magnetic hardening mechanism; while other properties such as grain boundaries Type, boundary spin orientation and crystallographic correlation, etc., control the strength of the exchange coupling