分类: 材料科学 >> 材料科学(综合) 提交时间: 2017-03-30
摘要: In order to improve the coercivity of hot-pressed magnets with hydrogenation disproportionation desorption recombination (HDDR) powders being the precursor, diffusion processing of an NdCu eutectic alloy is employed for grain boundary modification, result
分类: 材料科学 >> 材料科学(综合) 提交时间: 2017-03-30
摘要: In order to improve the coercivity of hot-pressed magnets with hydrogenation disproportionation desorption recombination (HDDR) powders being the precursor, diffusion processing of an NdCu eutectic alloy is employed for grain boundary modification, result
提交时间: 2017-05-02
摘要: The influence of the RE-rich phase distribution in the precursor alloys on the anisotropy of the hydrogenation disproportionation desorption recombination [HDDR] processed powders is investigated. The homogenized ingot alloy and the as-cast strip casting
提交时间: 2017-05-02
摘要: 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 magn
提交时间: 2017-05-02
摘要: Fine-grained Nd10.79Pr2.8Al0.4B7.72Fe78.29 magnets were prepared by low temperature pre-sintering and subsequent hot pressing. The grain size of the magnets is just about 1-3 mu m because the low sintering temperature results in no grain growth. The orien