| 两相纳米晶稀土永磁材料的研究进展 |
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| 引用本文： | 孙泓,何玉定,胡社军. 两相纳米晶稀土永磁材料的研究进展[J]. 广东工业大学学报, 2003, 20(4): 11-18 |
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| 作者姓名： | 孙泓 何玉定 胡社军 |
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| 作者单位： | 广东工业大学,材料与能源学院,广东,广州,510643 |
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| 基金项目： | 广东省自然科学基金资助项目(20000031) |
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| 摘 要： | 两相纳米晶复合交换耦合稀土永磁材料由于具有高剩磁、高磁能积、高矫顽力和相对低的稀土含量等优点而成为当前国际上研制新一代稀土永磁材料的主要途径。文章综述了其理论模型、磁特性和加工方法，以及存在的问题和发展前景。
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| 关 键 词： | 纳米晶 交换耦合 稀土永磁材料 磁能积 剩磁 矫顽力 |
| 文章编号： | 1007-7162(2003)04-0011-08 |
| 修稿时间： | 2002-12-31 |
Development of Dual-phase Nanocrystalline Composite Exchanging Rare-earth Permanent Magnets |
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| SUN hong,HE yu-ding,HU she-jun. Development of Dual-phase Nanocrystalline Composite Exchanging Rare-earth Permanent Magnets[J]. Journal of Guangdong University of Technology, 2003, 20(4): 11-18 |
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| Authors: | SUN hong HE yu-ding HU she-jun |
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| Abstract: | Dual-phase nanocrystalline composite exchanging rare-earth permanent magnets show both a high remanence Br and a high coercivity field iHc. These two properties result in a high maximum energy product (BH)max, compared with traditional rare-earth permanent magnets, rare-earth content of nanocrystalline magnets is relatively low. So these materials have become main approach to research new rare-earth permanent magnets in the world now. The present article summarizes theoreticle models, magnetic characteristic and process of nanocrystalline magnets, and describes its developmental foreground and some problems. |
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| Keywords: | nanocrystalline exchange coupling rare-earth permanent magnets |
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