| HDDR Nd2Fe14B磁粉微结构和磁性能研究 |
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| 引用本文： | 刘敏,高汝伟.HDDR Nd2Fe14B磁粉微结构和磁性能研究[J].磁性材料及器件,2011(4):19-22. |
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| 作者姓名： | 刘敏 高汝伟 |
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| 作者单位： | 1. 惠州学院电子科学系,广东惠州,516007
2. 山东大学物理学院,山东济南,250100 |
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| 基金项目： | 惠州学院博士科研启动项目(C510.0205) |
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| 摘 要： | 采用未经均匀化热处理的SC(Strip casting)合金铸片为原料制备HDDR磁粉,着重研究了HDDR工艺的歧化阶段和缓慢脱氢阶段的氢气压强对Nd2Fe4B磁粉微结构和磁性能的影响.研究表明:合适的歧化压强(Pd)和缓慢脱氢压强(Psd)不仅有利于磁粉各向异性的获得,同时也有利于磁粉微结构的优化和磁性能的改善.磁粉...
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| 关 键 词： | HDDR工艺 NdFeB磁粉 各向异性 微结构 磁性能 |
Investigation on the microstructure and magnetic properties of HDDR Nd_2Fe_(14)B magnetic powders |
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| LIU Min,GAO Ru-wei.Investigation on the microstructure and magnetic properties of HDDR Nd_2Fe_(14)B magnetic powders[J].Journal of Magnetic Materials and Devices,2011(4):19-22. |
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| Authors: | LIU Min GAO Ru-wei |
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| Affiliation: | LIU Min1,GAO Ru-wei2 1.Department of Electronic Science,Huizhou University,Huizhou 516007,China,2.School of Physics,Shandong University,Ji'nan 250100 |
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| Abstract: | The HDDR(hydrogenation,decomposition,desorption,recombination) magnetic powders were made directly from strip casting(SC) alloy flakes without homogenizing treatment.Effects of hydrogen pressure during the disproportionation and the slow desorption stage of the HDDR process on the microstructure and magnetic properties of Nd2Fe4B magnetic powders were mainly studied.The results indicated that both the appropriate disproportionation pressure(Pd) and slow desorption pressure(Psd) are not only beneficial to th... |
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| Keywords: | HDDR process NdFeB magnetic powders anisotropy microstructure magnetic properties |
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