| 2：17型SmCo稀土永磁材料的研究现状与趋势 |
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| 引用本文： | 易健宏,彭元东.2：17型SmCo稀土永磁材料的研究现状与趋势[J].稀有金属材料与工程,2004,33(4):337-342. |
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| 作者姓名： | 易健宏 彭元东 |
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| 作者单位： | 中南大学,粉末冶金国家重点实验室,湖南,长沙,410083 |
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| 基金项目： | 教育部高等学校骨干教师资助计划资助(2001年)，湖南省自然科学基金项目资助计划资助(02JJY2078) |
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| 摘 要： | 2：17型SmCo永磁材料主要有4种类型的磁体：高温磁体、超低温度系数的磁体、辐射取向和辐射多极取向环行磁体、高电绝缘磁体。介绍了其制造方法，主要是粉末冶金(烧结)法、还原扩散法和快淬-粘结法；描述了磁体的胞状显微组织结构和成分对结构的影响：总结了其矫顽力机理，特别是高温下的矫顽力机制；并对该永磁材料的今后研究趋势作了评述。
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| 关 键 词： | 2：17型SmCo合金 合金成分 制造方法 显微组织 矫顽力机理 |
| 文章编号： | 1002-185X(2004)04-0337-06 |
| 修稿时间： | 2002年9月16日 |
Review of Research on 2:17 Type SmCo Rare Earth Permanent Magnets |
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| Yi Jianhong,Peng Yuandong.Review of Research on 2:17 Type SmCo Rare Earth Permanent Magnets[J].Rare Metal Materials and Engineering,2004,33(4):337-342. |
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| Authors: | Yi Jianhong Peng Yuandong |
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| Abstract: | Research and development of 2:17 type SmCo permanent magnets are reviewed. Considered are four magnets types : high temperature magnets, super-low temperature coefficient magnets, the radially oriented and multi-polar rings, high electricity insulation magnets. Manufacturing techniques described include: powder metallurgy (sintering), reverting-diffuse and quenching-bonding. The cellular microstructure was characterized, and the effects of components on microstructure were discussed. The coercivity mechanism over a wide temperature range was considered and directions for future research discussed. |
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| Keywords: | type SmCo alloy component of alloy manufacture technique microstructure coercivity mechanism |
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