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- 연자성 합금 분말의 입자크기에 따른 전자파 흡수 특성 비교
- 홍순호, 손근용, 박원욱, 남정미, 문병기, 송용설
- Study of Electromagnetic Wave Absorption Properties with Particle Size in Soft Magnetic Alloy Powder
- S.H. Hong, K.Y. Sohn, W.W. Park, J.M. Nam, B.G. Moon, Y.S. Song
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Journal of Korean Powder Metallurgy Institute 2007;14(4):261-264
DOI: https://doi.org/10.4150/KPMI.2007.14.4.261
1인제대학교 나노시스템공학과
2인제대학교 나노시스템공학과
3인제대학교 나노시스템공학과
4한국기계연구원 부설 재료연구소
5한국기계연구원 부설 재료연구소
6(주)아모센스
1Department of Nano-systems Engineering, Inje University
2Department of Nano-systems Engineering, Inje University
3Department of Nano-systems Engineering, Inje University
4Korea Institute of Materials Science
5Korea Institute of Materials Science
6AMOSENSE
2인제대학교 나노시스템공학과
3인제대학교 나노시스템공학과
4한국기계연구원 부설 재료연구소
5한국기계연구원 부설 재료연구소
6(주)아모센스
1Department of Nano-systems Engineering, Inje University
2Department of Nano-systems Engineering, Inje University
3Department of Nano-systems Engineering, Inje University
4Korea Institute of Materials Science
5Korea Institute of Materials Science
6AMOSENSE
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Abstract
The electromagnetic wave (EM) absorption properties of various particle size have been investigated in a sheet-type absorber using the Fe_73Si_16B_7Nb_3Cu_1 alloy powder. With decreasing the average particle size, the complex permeability (µ_r) and permittivity (varepsilon_r) increased and the matching frequency is shifted toward lower frequency. The fabricated EM wave absorbers showed permeability 2sim6, permittivity 17sim23 for a -325sim+400 mesh sample, and the calculated power absorption was as high as 80% in the frequency range over 2 GHz.
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