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3 通过掺杂与合金化提高扩散剂速率的原理图

Fig.3 Schematic of improving the diffusion efficiency via doping and alloying (The solid arrows represent the orientation of grains, and the dash arrows represent the GBD of diffusion sources)