Magnetic properties of Fe-1.5wt% Si high-frequency powder cores
- Authors
- Lee, Kwiyoung; Ahn, Jonghyeok; Choi, Moosung; Lee, Dongsup; Kim, Jongryoul
- Issue Date
- Dec-2019
- Publisher
- AMER INST PHYSICS
- Citation
- AIP ADVANCES, v.9, no.12, pp.1 - 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- AIP ADVANCES
- Volume
- 9
- Number
- 12
- Start Page
- 1
- End Page
- 4
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/1985
- DOI
- 10.1063/1.5130075
- ISSN
- 2158-3226
- 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 similar to 10 kHz range compared with commercial products. As a result, fabricated Fe-1.5wt% Si@Fe-3(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. (C) 2019 Author(s).
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