| Heat treatment process of new NdFeB magnet prepared by spark plasma sintering |
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| 作者姓名： | 李涛 岳明 张久兴 王公平 肖耀福 王润 |
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| 作者单位： | School of Materials Science and Engineering，Beijing University of Technology，Beijing University of Technology，Beijing University of Technology，School of Materials Science and Engineering，School of Materials Science and Engineering University of Science and Technology Beijing，Beijing 100083，China，Advanced Functional Materials Key laboratory，Ministry of Education，Beijing 100022，China，Advanced Functional Materials Key laboratory，Ministry of Education，Beijing 100022，China，Advanced Functional Materials Key laboratory，Ministry of Education，Beijing 100022，China，University of Science and Technology Beijing，Beijing 100083，China，University of Science and Technology Beijing，Beijing 100083，China |
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| 基金项目： | Project (Km2 0 0 3 10 005019)supportedbytheScienceandTechnologyDevelopmentPlanofBeijingMunicipalEducationCom mission |
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| 摘 要： | 1 INTRODUCTIONTraditionallysinteredNdFeBmagnetcanmeettherequirementofdimensional precisionthroughpost machining ,whichusuallyresultsin 4 5 %ofma terialloss.Post machiningnotonlywastestherareearthresources ,butalsoincreasesthe productioncost .Moreover ,itisdifficulttopreparehomogeneousworkpieceswithlargedimensionandcomplicatedshapeduetosomeuncontrollablefactorsinthecon ventionalsintering process .Ontheotherhand ,al thoughthebondedNdFeBmagnethasbetterforma bilityanddimensionalprecision ,…
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Heat treatment process of new NdFeB magnet prepared by spark plasma sintering |
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| LI Tao ,YUE Ming ,ZHANG Jiu xing ,WANG Gong ping ,XIAO Yao fu ,WANG Run.Heat treatment process of new NdFeB magnet prepared by spark plasma sintering[J].Transactions of Nonferrous Metals Society of China,2003,13(4). |
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| Authors: | LI Tao YUE Ming ZHANG Jiu xing WANG Gong ping XIAO Yao fu WANG Run |
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| Affiliation: | LI Tao 1,YUE Ming 2,ZHANG Jiu xing 2,WANG Gong ping 2,XIAO Yao fu 1,WANG Run 1 |
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| Abstract: | In recent years, spark plasma sintering technique(SPS) has been a focus in the field of material preparation due to its advantages. SPS technique is first introduced for preparation of high quality NdFeB magnets. The effects of heat treatment process on the magnetic properties of SPS NdFeB magnet were investigated. Meanwhile, the effects of heat treatment process on the microstructure, tropism and dimensional precision of the SPS NdFeB magnets were also studied. The high quality NdFeB magnets with fine grains were prepared under proper heat treatment process. The results show that the magnetic properties of SPS NdFeB can be further improved through proper heat treatment process. Meanwhile, the experiment also demonstrates that it is feasible to prepare near net shape NdFeB magnets with fine grains and high magnetic property by spark plasma sintering. |
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| Keywords: | spark plasma sintering formability shrinkage ratio heat treatment |
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