DocumentCode :
3602285
Title :
Fe-Based Soft Magnetic Composites With High 
and Low Core Loss by Acidic Bluing Coating
Author :
Guoliang Zhao ; Chen Wu ; Mi Yan
Author_Institution :
State Key Lab. of Silicon Mater., Key Lab. of Novel Mater. for Inf. Technol. of Zhejiang Province, Zhejiang Univ., Hangzhou, China
Volume :
51
Issue :
11
fYear :
2015
Firstpage :
1
Lastpage :
4
Abstract :
Fe-based soft magnetic composites (SMCs) with high Bs 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/cm3 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 °C.
Keywords :
annealing; coatings; composite materials; electrical resistivity; iron compounds; magnetic particles; magnetisation; soft magnetic materials; Fe powders; Fe-based soft magnetic composites; acidic bluing coating; annealing temperature; electrical resistivity; frequency 100 kHz; highly normalized saturation magnetization; iron oxide coating layer; reaction time effect; temperature 550 degC; time 30 min; Iron; Loss measurement; Magnetic cores; Powders; Saturation magnetization; Soft magnetic materials; Acidic bluing; acidic bluing; magnetic loss; saturation magnetization; soft magnetic composites (SMCs);
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2015.2433913
Filename :
7109158
Link To Document :
