Specification Requirement for Thermal Stability of Sintered NdFeB Materials for Electrical Machines
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第1期
论文作者：Jiang Daiwei Chen Hailing CHEN Lixiang Tang Renyuan Bi Haitao Lin Yan
Key words：NdFeB; temperature coefficient; thermal stability;
Abstract: Based on IEC standards and Chinese national standards of sintered NdFeB materials, in the paper the hightemperature, room-temperature properties and thermal stability of about one hundred samples of NdFeB materials for electrical machines were measured and analyzed.These materials are produced by ten representative manufactories in China.Combined with the analysis results, the paper points out that the magnetic properties of sintered NdFeB materials for electrical machines should meet not only the specific values in standards, such as Br, (BH)max ,HcJ ,but also the requirement of temperature coefficients a (Br) , a (HcJ).
Jiang Daiwei1，Chen Hailing1，CHEN Lixiang1，Tang Renyuan1，Bi Haitao1，Lin Yan1
(1.Research Institute of special Electrical Machine, Shenyang University of Technology, Shenyang 110023, China)
Abstract:Based on IEC standards and Chinese national standards of sintered NdFeB materials, in the paper the hightemperature, room-temperature properties and thermal stability of about one hundred samples of NdFeB materials for electrical machines were measured and analyzed.These materials are produced by ten representative manufactories in China.Combined with the analysis results, the paper points out that the magnetic properties of sintered NdFeB materials for electrical machines should meet not only the specific values in standards, such as Br, (BH)max ,HcJ ,but also the requirement of temperature coefficients a (Br) , a (HcJ).
Key words:NdFeB; temperature coefficient; thermal stability;
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