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We report an approach to improve the electric resistivity of Nd-Fe-B die-upset magnets without sacrificing their magnetic properties very much. NdF3 fine powders were segmentally added in the die filling with MQU-F powders and then were die-upset for magnets. Experimental results indicated that electric resistivity monotonically increases with the increase of NdF3 addition, which is due to the formation...
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