| Effect of HD Process on Microstructure and Hard Magnetic Properties of NdFeAlB Magnet |
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| 作者姓名： | 姜忠良 陈秀云 陈晓东 石大立 杨昌平 朱静 |
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| 作者单位： | School of Materials Science & Engineering，Tsinghua University，Beijing 100084，China |
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| 基金项目： | ProjectsupportedbyNaturalScienceFoundationofChina (NFSC) (5 0 0 770 10 ) |
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| 摘 要： | ＨｙｄｒｏｇｅｎＤｅｃｒｅｐｉｔａｔｉｏｎ (ＨＤ)ｐｒｏｃｅｓｓｉｓａｎｅｗｍｅｔｈｏｄｔｏｐｒｏｄｕｃｅｐｏｗｄｅｒｓｏｆｒａｒｅｅａｒｔｈｐｅｒｍａｎｅｎｔｍａｇｎｅｔ.ＴｈｅｉｎｇｏｔｓａｒｅｃｒｕｓｈｅｄｉｎｔｏｓｍａｌｌｐａｒｔｉｃｌｅｓｏｒｐｏｗｄｅｒｓｄｕｒｉｎｇＨＤｐｒｏｃｅｓｓｏｗｉｎｇｔｏｔｒａｎｓｇｒａｎｕｌａｒａｎｄｉｎｔｅｒｇｒａｎｕｌａｒｆｒａｃ ｔｕｒｅ .ＭａｎｙａｕｔｈｏｒｓｒｅｐｏｒｔｅｄｔｈａｔＨＤｐｒｏｃｅｓｓｈａｓａｌｏｔｏｆａｄｖａｎｔａｇｅｓ ,ｓｕｃｈａ…
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Effect of HD Process on Microstructure and Hard Magnetic Properties of NdFeAlB Magnet |
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| Jiang Zhongliang ,Chen Xiuyun,Chen Xiaodong,Shi Dali,Yang Changping,Zhu Jing.Effect of HD Process on Microstructure and Hard Magnetic Properties of NdFeAlB Magnet[J].Journal of Rare Earths,2002,20(3). |
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| Authors: | Jiang Zhongliang Chen Xiuyun Chen Xiaodong Shi Dali Yang Changping Zhu Jing |
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| Affiliation: | Jiang Zhongliang *,Chen Xiuyun,Chen Xiaodong,Shi Dali,Yang Changping,Zhu Jing |
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| Abstract: | The effect of Hydrogen Decrepitation (HD) process on the magnetic properties and microstructure of sintered NdFeAlB magnet (HD magnet) was investigated. The results show that the coercivity of HD magnet is higher than that of traditional ball milling (BM) magnet, while the remanence and the maximum energy product of HD magnet are lower. Microstructure analysis shows that some fine un sintered powders are distributed at the grain boundaries of HD magnet. X ray diffraction (XRD) analysis reveals that the degree of easy axis alignment of HD magnet is lower. Some ideas to improve the current HD process were proposed. |
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| Keywords: | rare earths hydrogen decrepitation NdFeB permanent magnet |
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