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Waste sintered Nd-Fe-B permanent magnets were recycled via doping (Nd20Dy80)76Co20Cu3Fe1 special alloy (SA) powders. The effect of the SA on the microstructure and magnetic properties of the recycled magnets has been studied. The SA additives between 0.0 and 2.0 wt% have little effect on the remanence ($B_{{{r}}}$ ) of the recycled magnet. When the additive content is more than 2.0 wt%, the remanence...
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