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

(a) Magnetic properties of the recycled magnets as a function of DyH3 nanoparticles content, (b) Nd-rich phase content and grain size of the recycled Nd–Fe–B sintered magnets with different amounts of DyH3 nanoparticles additive.[27]