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OALib Journal期刊
ISSN: 2333-9721
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各向异性nd2fe14b/α--fe纳米晶复合磁体的制备和性能
Keywords: 金属材料,nd2fe14b/α--fe纳米晶复合磁体,声化学和放电等离子烧结,各向异性
Abstract:
？采用声化学法、放电等离子烧结技术(sps)和热变形工艺制备致密各向同性和各向异性nd2fe14b/α--fe复合磁体,研究了软磁相包覆对磁体的结构和性能的影响.结果表明,？软磁相α--fe对各向同性nd2fe14b/α--fe复合磁体的影响主要表现为增强两相间的交换耦合作用,从而提高剩磁.当α--fe体积分数的数值适当(不超过2%)时,各向异性nd2fe14b/α--fe磁体形成较好的$c$轴晶体织构,具有较高的磁性能.α--fe体积分数为1%的磁体性能最高:br=1.367t,hci=712ka/m,(bh)m=327kj/m3.
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