摘要
研究了铁粉纯度和粒径对磷化铁粉软磁复合材料磁性能的影响。结果表明,铁粉经磷化后,表面成功包覆了完整均匀的磷酸盐绝缘层。铁粉纯度提高,软磁复合材料磁芯的密度和磁导率增大,同时磁滞损耗降低。铁粉粒度增大,磁芯密度和磁导率增加,中高频率下磁损耗明显增加,且频率越高越明显。
This paper investigates the effect of iron powder purity and particle size on the magnetic properties of phosphated iron soft magnetic composites（SMC）.The results showed that the phosphating process give rise to a large coverage of the iron powders surface by the iron phosphate coating.The density and permeability of phosphated iron samples shows an increase with increased the iron powder purity or particle size.The sample with higher iron powder purity exhibits lower hysteresis loss.With increase in the particle size,magnetic loss increases significantly at medium and high frequencies,and the higher the frequency the more obvious.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2012年第18期2488-2491,共4页
Journal of Functional Materials
基金
国家科技支撑计划资助项目(2009BAE74B03)
关键词
软磁复合材料
铁粉纯度
粒径
磷化铁粉
soft magnetic composites
iron powder purity
particle size
phosphated iron
作者简介
李发长（1983-），男，湖南浏阳人，在读博士，师承贾成厂教授，从事复合材料研究。
通讯作者：贾成厂
