钕铁硼永磁晶界扩散技术和理论发展的几个问题
刘仲武, 何家毅

Several Issues on the Development of Grain Boundary Diffusion Process for Nd-Fe-B Permanent Magnets
LIU Zhongwu, HE Jiayi
图6 三代晶界扩散剂的发展示意图
Fig.6 Schematic of development of the three generations of GBD source (LRE—light rare earth)