Microwave power absorption of magnetic composites filled with surface coated Fe-Al-Si flakes

Title
Microwave power absorption of magnetic composites filled with surface coated Fe-Al-Si flakes
Author(s)
김기현이준식조상호[조상호]윤상훈[윤상훈]
Keywords
NOISE SUPPRESSION; THIN-FILMS; LINE; RANGE
Issue Date
201405
Publisher
AMER INST PHYSICS
Citation
JOURNAL OF APPLIED PHYSICS, v.115, no.17
Abstract
The Al2O3 coated Fe-Al-Si flakes were employed as a magnetic filler in 150 mu m-thick dielectric matrix. The saturation magnetizations of the coated Fe-Al-Si flakes were decreased down to 98 emu/g with the increment of the coating thickness (170 nm, 250 nm, 350 nm) in comparison with that of uncoated Fe-Al-Si flakes (130 emu/g). The power absorptions for Al2O3 coated Fe-Al-Si flakes composites were decreased from 62.7% to 57.4% (at 5 GHz) with the increment of coating thickness in comparison with that of uncoated Fe-Al-Si flakes composite (80% at 5 GHz). The thermal conductivities of Al2O3 coated composites were increased up to 0.249W/m K in comparison with that of uncoated composite of 0.096 W/m K. (C) 2014 AIP Publishing LLC.
URI
http://hdl.handle.net/YU.REPOSITORY/32227http://dx.doi.org/10.1063/1.4859015
ISSN
0021-8979
Appears in Collections:
이과대학 > 물리학과 > Articles
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