李庆达,张伟,胡军,刘天祥,王黎明,连法增,陆曹卫

• 1:黑龙江八一农垦大学工程学院
• 2:东北大学材料各向异性与织构教育部重点实验室
• 3:钢铁研究总院安泰科技股份有限公司

摘要(Abstract)：

采用水雾化Fe74Cr2Mo2Sn2P10C2Si4B4非晶磁粉制备出了高频特性较好的磁粉芯。研究了去应力退火和磁场退火对磁粉芯磁性能的影响。结果表明:非晶磁粉芯压制后的去应力退火处理能有效提高磁导率和品质因数。过高热处理温度使非晶粉末晶化,析出导电性较差的非铁磁相,恶化磁性能。最佳退火温度为400℃,最佳的磁性能为:在3500 kHz的频率下,μ=40.5,Q=225。磁场退火对Fe74Cr2Mo2Sn2P10C2Si4B4非晶磁粉芯磁导率影响较小。纵向磁场退火能增大非晶磁粉芯的损耗,横向磁场退火能降低非晶磁粉芯的损耗,磁粉芯总损耗变化主要来源于磁滞损耗。

关键词(KeyWords)： 退火;磁粉芯;磁性能

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划(863计划)资助项目(2008AA03Z2472642)

作者(Author): 李庆达,张伟,胡军,刘天祥,王黎明,连法增,陆曹卫

DOI: 10.13289/j.issn.1009-6264.2012.04.001

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