Progress in recycling of Nd–Fe–B sintered magnet wastes
Yue Ming, Yin Xiaowen, Liu Weiqiang, Lu Qingmei
       

SEM images of the recycled sintered magnets (a) without DyH3 nanoparticles additive, (b) with 1.0 wt.% DyH3 nanoparticles additive, and (c) with 2.0 wt.% DyH3 nanoparticles additive.[27]