Al2O3 첨가에 따른 Fe계 나노결정립 P/M시트의 전자파 흡수특성
(주)코리아스칼라
- 최초 등록일
- 2016.04.01
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- 2007.08
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서지정보
ㆍ발행기관 : 한국분말야금학회
ㆍ수록지정보 : 한국분말야금학회지 / 14권 / 4호
ㆍ저자명 : 우수정, 조은경, 조현정, 이재준, 손근용, 박원욱
영어 초록
Electromagnetic wave absorbing materials have been developed to reduce electromagnetic interference (EMI) for electronic devices in recent years. In this study, Fe-Si-B-Nb-Cu base amorphous strip was pulverized using a jet mill and an attritor and heat-treated to get flake-shaped nanocrystalline powders, and then the powders were mixed, cast and dried with dielectric powders and binders. As a result, the addition of powders improved the absorbing properties of the sheets noticeably compared with those of the sheets without dielectric materials. The sheet mixed with 2 wt% powder showed the best electromagnetic wave absorption, which was caused by the increase of the permittivity and the electric resistance due to the dielectric materials finely dispersed on the Fe-based powder
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