Progress in recycling of Nd–Fe–B sintered magnet wastes
(a) Magnetic hysteresis loops of MC regenerated Nd–Fe–B magnetic powders with different particle size distributions. (b) Magnetic hysteresis loops of HD regenerated Nd–Fe–B magnetic powders with different particle size distributions. (c) Demagnetization curves of the regenerated Nd–Fe–B bonded magnets made from MC and HD powders with size distribution of
