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

Scanning electron microscope (SEM) images (BSE mode) of the recycled sintered magnets with different amounts of special alloy additive: (a) 0, (b) 1.0 wt.%, (c) 2.0 wt.%, and (d) 3.0 wt.%.[25]