| Nd-Fe-B磁体热等静压烧结的实验研究 |
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| 引用本文： | 李青华,包小倩,高学绪,张茂才,周寿增.Nd-Fe-B磁体热等静压烧结的实验研究[J].北京科技大学学报,2004,26(3):282-284. |
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| 作者姓名： | 李青华 包小倩 高学绪 张茂才 周寿增 |
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| 作者单位： | 北京科技大学新金属材料国家重点实验室,北京,100083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 研究了热等静压烧结对Nd-Fe-B磁体的致密度、显微组织及磁性能的影响.结果表明:与常压烧结磁体相比,热等静压烧结磁体的内部存在较多的孔洞,致密度、晶粒取向度及磁性都有所降低.用加热Ar气热膨胀而产生热等静压进行烧结的办法不适于制造高性能的烧结磁体.
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| 关 键 词： | Nd-Fe-B永磁体 热等静压烧结 磁性能 烧结磁体 热等静压 实验 研究 Permanent Magnets Sintering Pressing 高性能 制造 热膨胀 加热 磁性能 取向度 晶粒 孔洞 存在 结果 影响 显微组织 致密度 |
| 修稿时间： | 2003年7月7日 |
Heat Isostatic Pressing Sintering of Nd-Fe-B Permanent Magnets |
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| LI Qinghua,BAO Xiaoqian,GAO Xuexu,ZHANG Maocai,ZHOU Shouzeng State Key Laboratory for Advanced Metals and Maerials,University of Science and Technology Beijing,Beijing ,China.Heat Isostatic Pressing Sintering of Nd-Fe-B Permanent Magnets[J].Journal of University of Science and Technology Beijing,2004,26(3):282-284. |
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| Authors: | LI Qinghua BAO Xiaoqian GAO Xuexu ZHANG Maocai ZHOU Shouzeng State Key Laboratory for Advanced Metals and Maerials University of Science and Technology Beijing Beijing China |
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| Institution: | LI Qinghua,BAO Xiaoqian,GAO Xuexu,ZHANG Maocai,ZHOU Shouzeng State Key Laboratory for Advanced Metals and Maerials,University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The effects of Heat Isostatic Pressing (HIP) sintering on the density microstructure and magnetic
properties of Nd-Fe-B permanent magnets were studied. Results showed that compared to conventional magnets,
the magnetic properties of HIP sintered ones decreased due to the deterioration of alignment of Nd_2Fe_(14)B grains and
the lower density of the magnets, which resulted from the existence of more holes in the HIP sintered magnets. It is
concluded that HIP sintering is not suitable for producing high performance sintered Nd-Fe-B magnets. |
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| Keywords: | Nd-Fe-B permanent magnets HIP sintering magnetic properties |
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