Heat Isostatic Pressing Sintering of Nd-Fe-B Permanent Magnets

LI Qinghua; BAO Xiaoqian; GAO Xuexu; ZHANG Maocai; ZHOU Shouzeng

doi:10.13374/j.issn1001-053x.2004.03.014

Volume 26 Issue 3

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Article Navigation > Chinese Journal of Engineering > 2004 > 26(3): 282-284

LI Qinghua, BAO Xiaoqian, GAO Xuexu, ZHANG Maocai, ZHOU Shouzeng. Heat Isostatic Pressing Sintering of Nd-Fe-B Permanent Magnets[J]. Chinese Journal of Engineering, 2004, 26(3): 282-284. doi: 10.13374/j.issn1001-053x.2004.03.014

Citation:

LI Qinghua, BAO Xiaoqian, GAO Xuexu, ZHANG Maocai, ZHOU Shouzeng. Heat Isostatic Pressing Sintering of Nd-Fe-B Permanent Magnets[J]. Chinese Journal of Engineering, 2004, 26(3): 282-284. doi: 10.13374/j.issn1001-053x.2004.03.014

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Heat Isostatic Pressing Sintering of Nd-Fe-B Permanent Magnets

doi: 10.13374/j.issn1001-053x.2004.03.014

State Key Laboratory for Advanced Metals and Maerials, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2003-07-07
Available Online: 2021-08-16

Abstract

Abstract

The effects of Heat Isostatic Pressing (HIP) sintering on the density, microstructure and magnetic properties of Nd-Fe-B permanent magnets were studied. The results show that compared to conventional magnets, the magnetic properties of HIP sintered ones decrease due to the deterioration of alignment of Nd₂Fe₁₄B 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.
- Nd-Fe-B permanent magnets,
- HIP sintering,
- magnetic properties