| 具有正温度系数的2:17型Sm(Co,Fe,Cu,Zr)z永磁体的研究现状 |
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| 引用本文： | 文雪萍,易健宏,彭元东,李丽娅,叶途明,夏庆林. 具有正温度系数的2:17型Sm(Co,Fe,Cu,Zr)z永磁体的研究现状[J]. 材料导报, 2005, 19(6): 52-55,59 |
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| 作者姓名： | 文雪萍 易健宏 彭元东 李丽娅 叶途明 夏庆林 |
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| 作者单位： | 中南大学粉末冶金国家重点实验室,长沙,410083;牛津大学材料系,英国 |
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| 基金项目： | 教育部高校骨干教师资助计划，湖南省自然科学基金 |
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| 摘 要： | 总结了矫顽力具有正温度系数的2:17型Sm(Co,Fe,Cu,Zr)z永磁体的研究现状;分析了成分与胞状显微组织对矫顽力正温度系数的影响,概括了目前解释矫顽力正温度系数的几种矫顽力机制模型,提出了对矫顽力正温度系数的研究是高温永磁体Sm(Co,Fe,Cu,Zr)z今后一个很有前景的新研究方向.
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| 关 键 词： | 2:17型Sm(Co Fe Cu Zr)z永磁体 矫顽力 矫顽力正温度系数 矫顽力机制 高温永磁体 |
Current Progress of 2: 17 Type Sm( Co, Fe, Cu, Zr)z Magnets with Positive Temperature Coefficient |
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| WEN Xueping,YI Jianhong,PENG Yuandong,LI Liya,YE Tuming,XIA Qinglin. Current Progress of 2: 17 Type Sm( Co, Fe, Cu, Zr)z Magnets with Positive Temperature Coefficient[J]. Materials Review, 2005, 19(6): 52-55,59 |
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| Authors: | WEN Xueping YI Jianhong PENG Yuandong LI Liya YE Tuming XIA Qinglin |
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| Abstract: | The present researching conditions of 2:17 Sm(Co,Fe,Cu,Zr)_z magnets in which the coercivity has a- nomalous temperature dependence are summed up.The effects of the compositions and the cellular microstructure on anoma- lous temperature dependence of coercivity are analyzed.Several coercivity models for explaining the anomalous temperature de- pendence of coercivity at present are summarized.It is put forward that the research on the anomalous temperature dependence of coercivity is a new hopeful researching direction of high temperature 2:17 Sm(Co,Fe,Cu,Zr)_z permanent magnets in the future. |
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| Keywords: | 2:17Sm(Co Fe Cu Zr)_z permanent magnets coercivity anomalous temperature dependence of coercivity coercivity models high temperature permanent magnets |
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