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Magnetic properties of Fe-1.5wt% Si high-frequency powder cores

Title
Magnetic properties of Fe-1.5wt% Si high-frequency powder cores
Author
김종렬
Issue Date
2019-12
Publisher
American Institute of Physics
Citation
AIP Advances, v. 9, Page. 125340-125344
Abstract
Electro-magnetic devices, such as motors and inductors, have been continuously required to increase their operation frequency for high efficiency. To satisfy this requirement, Fe-Si powder cores with high electrical resistance have been attracted much attention although they have lower permeability than Fe-Si electrical steels. With increasing the Si content, the ductility of Fe-Si alloy sharply decreases, which further lowers the density and magnetic properties of cores. In this study, we aimed to fabricate Fe-Si powder cores with higher saturation magnetization and lower loss in 1 ∼ 10 kHz range compared with commercial products. As a result, fabricated Fe-1.5wt% Si@Fe3(PO4)2 cores reached a 98% theoretical density and showed a magnetic flux density of 1.65 T at 10000 A/m and a core loss of 176.8 W/kg at 1 T @ 2 kHz.
URI
https://aip.scitation.org/doi/full/10.1063/1.5130075https://repository.hanyang.ac.kr/handle/20.500.11754/125343
ISSN
2158-3226
DOI
10.1063/1.5130075
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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