覃思思,朱杰,周晚珠,马灿,谭澄宇,曾克里

• 1:中南大学材料科学与工程学院
• 2:广州有色金属研究院

摘要(Abstract)：

采用水雾化法制备了Fe_(75)Si_(8.4)B_(12.6)Nb_4及Fe_(75)Si_(8.4)B_(12.6)Nb_2C_2两种铁基非晶软磁合金粉末。通过XRD、DSC、SEM及VSM等研究了C添加对Fe-Si-B-Nb非晶合金的相结构、非晶形成能力、粉末颗粒的形貌及粒度分布以及软磁性能的影响。结果表明,C元素的添加虽然在一定程度上削弱了合金的非晶形成能力,但仍然能通过水雾化制备出非晶态合金粉末,且粉末形貌得到改善,粒度分布亦趋于合理。同时,添加C元素后,Fe_(75)Si_(8.4)B_(12.6)Nb_4及Fe_(75)Si_(8.4)B_(12.6)Nb_2C_2合金的饱和磁化强度及矫顽力分别为136.71 A·m2/kg、79.04A/m,较Fe75Si8.4B12.6Nb4合金的软磁性能得到大幅度提高。

关键词(KeyWords)： Fe-Si-B-Nb非晶软磁合金;水雾化;C添加;非晶形成能力;软磁性能

Abstract:

Keywords:

基金项目(Foundation): 广东省科技计划资助项目(2013B010403019)

作者(Author): 覃思思,朱杰,周晚珠,马灿,谭澄宇,曾克里

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