| 添加Dy2O3对烧结Nd-Fe-B磁体结构与性能的影响 |
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| 引用本文： | 刘湘涟. 添加Dy2O3对烧结Nd-Fe-B磁体结构与性能的影响[J]. 磁性材料及器件, 2011, 0(6): 35-37,75 |
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| 作者姓名： | 刘湘涟 |
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| 作者单位： | 宁波工程学院材料工程研究所 |
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| 摘 要： | 应用常规粉末冶金工艺制备(Pr-Nd)32Gd0.6FebalNb0.55Cu0.20Al0.45B1.12+x％Dy2O3烧结磁体,分析了添加Dy2O3对其磁性能、抗弯强度、显微组织以及取向度的影响.结果表明,适量添加Dy2O3,使内禀矫顽力显著提高,同时剩磁出现一定程度的下降.Dy2O3添加数量大于1.2％之后,磁...
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| 关 键 词： | 烧结Nd-Fe-B磁体 Dy2O3添加 显微组织 取向度 磁性能 抗弯强度 |
Effects of Dy2O3 addition on the microstructure and magnetic properties of sintered Nd-Fe-B magnets |
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| LIU Xiang-lian. Effects of Dy2O3 addition on the microstructure and magnetic properties of sintered Nd-Fe-B magnets[J]. Journal of Magnetic Materials and Devices, 2011, 0(6): 35-37,75 |
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| Authors: | LIU Xiang-lian |
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| Affiliation: | LIU Xiang-lian Research Institute of Materials Engineering,Ningbo University of Technology,Ningbo 315016,China |
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| Abstract: | (Pr-Nd)32Gd0.6FebalNb0.55Cu0.20Al0.45B1.12 sintered magnets with Dy2O3 addition were prepared with conventional powder metallurgy technique.Effects of Dy2O3 addition on magnetic properties,bending strength,microstructure and orientation degree of these magnets were analyzed.As a consequence of Dy2O3 addition,the intrinsic coercivity is greatly improved while the remanence is decreased to a certain extent.As Dy2O3 addition exceeds 1.2%,an obvious enhancement in orientation degree of Nd2Fe14B grains is observed and there exists a relatively great number of pores in the microstructure,which results in a large decrease in the bending strength. |
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| Keywords: | sintered Nd-Fe-B magnet Dy2O3 addition microstructure orientation degree magnetic properties bending strength |
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