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

(a) Demagnetization curves of the original waste magnets and the recycled Nd–Fe–B sintered magnets in a NaCl solution for 9 h. (b) Potentiodynamic polarization curves of the original waste magnets and the recycled Nd–Fe–B sintered magnets in 3.5 wt.% NaCl electrolyte. (c) Nyquist plots of the original waste magnets and the recycled Nd–Fe–B sintered magnets in 3.5 wt.% NaCl electrolyte.[39]