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5 放电等离子烧结磁体多层晶界扩散的第二象限退磁曲线和磁学性能
Fig.5 The 2nd quadrant demagnetization curves and magnetic properties of spark plasma sintered (SPSed) magnets after multiplane GBD process (Hcj—intrinsic coercivity, Jr—remanent magnetic polarization, diff.—diffusion)