| NdFeB系永磁体的矫顽力 |
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| 引用本文： | 周寿增,唐伟忠.NdFeB系永磁体的矫顽力[J].北京科技大学学报,1991,13(5):433-441. |
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| 作者姓名： | 周寿增 唐伟忠 |
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| 作者单位： | 北京科技大学材料科学与工程系
(周寿增，唐伟忠)，北京科技大学材料科学与工程系(王润) |
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| 摘 要： | 根据TEM观察,建立了三元烧结NdFeB系永磁体的显微结构模型。运用微磁学理论对矫顽力模型作了计算,并讨论了Nd_2Fe_(14)B晶粒和NdFeB系永磁体的矫顽力。提出了烧结NdFeB系永磁体Nd_2Fe_(14)B晶粒的外延壳磁硬化理论和提高其矫顽力的途径。
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| 关 键 词： | NdFeB 永磁体 矫顽力 显微结构 |
Coercivity of Sintered NdFeB Magnets |
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| Zhou Shouzeng Tang Weizhong Wang Run.Coercivity of Sintered NdFeB Magnets[J].Journal of University of Science and Technology Beijing,1991,13(5):433-441. |
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| Authors: | Zhou Shouzeng Tang Weizhong Wang Run |
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| Institution: | Zhou Shouzeng Tang Weizhong Wang Run Department of Materials Science and Engineering |
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| Abstract: | Based on the observations of TEM, a microstructural model of Sintered NdFeB magnets has been found. The coercivity of the model was calcu-latedbased on micromagnetic theory and the coercivity of both Nd2Fe14B grains and sintered NdFeB magnets were analysed and discussed. A magnetic hardering theory of epitaxial layer of Nd2Fe14B grain and the way of increasing coercivity of sintered NdFeB magnets were put forward. |
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| Keywords: | NdFeB magnets coercivity microstructure |
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