Fe-Based Soft Magnetic Composites With High Bs and Low Core Loss by Acidic Bluing Coating

被引：14
作者：
Zhao, Guoliang [1 ]
Wu, Chen [1 ]
Yan, Mi [1 ]
机构：
[1] Zhejiang Univ, Sch Mat Sci & Engn, Key Lab Novel Mat Informat Technol Zhejiang Prov, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2015年 / 51卷 / 11期
关键词：
Acidic bluing; magnetic loss; saturation magnetization; soft magnetic composites (SMCs); IRON; COERCIVITY;
D O I：
10.1109/TMAG.2015.2433913
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Fe-based soft magnetic composites (SMCs) with high B-s and low core loss were fabricated by acidic bluing coating. Effects of reaction time and annealing temperature on the magnetic properties of the SMCs have been investigated. The Fe3O4 grows as the coating layer of the Fe powders and converts to Fe2O3 with increased reaction time. The iron oxide coating layer gives rise to highly normalized saturation magnetization (0.954-0.928) and low core loss due to its high electrical resistivity. The lowest core loss (785.1 mW/cm(3) measured at 50 mT and 100 kHz) of the Fe SMCs can be achieved with the reaction time of 30 min and annealing temperature of 550 degrees C.
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页数：4
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