한국분말재료학회지 (Journal of Powder Materials)

  • 제14권4호
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  • Pages.261-264
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  • 2007
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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연자성 합금 분말의 입자크기에 따른 전자파 흡수 특성 비교

Study of Electromagnetic Wave Absorption Properties with Particle Size in Soft Magnetic Alloy Powder

  • 홍순호 (인제대학교 나노시스템공학과) ;
  • 손근용 (인제대학교 나노시스템공학과) ;
  • 박원욱 (인제대학교 나노시스템공학과) ;
  • 남정미 (한국기계연구원 부설 재료연구소) ;
  • 문병기 (한국기계연구원 부설 재료연구소) ;
  • 송용설 ((주)아모센스)
  • Hong, S.H. (Department of Nano-systems Engineering, Inje University) ;
  • Sohn, K.Y. (Department of Nano-systems Engineering, Inje University) ;
  • Park, W.W. (Department of Nano-systems Engineering, Inje University) ;
  • Nam, J.M. (Korea Institute of Materials Science) ;
  • Moon, B.G. (Korea Institute of Materials Science) ;
  • Song, Y.S. (AMOSENSE)
  • 발행 : 2007.08.28
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초록

The electromagnetic wave (EM) absorption properties of various particle size have been investigated in a sheet-type absorber using the $Fe_{73}Si_{16}B_{7}Nb_{3}Cu_{1}$ alloy powder. With decreasing the average particle size, the complex permeability (${\mu}_{r}$) and permittivity (${\varepsilon}_{r}$) increased and the matching frequency is shifted toward lower frequency. The fabricated EM wave absorbers showed permeability $2{\sim}6$, permittivity $17{\sim}23$ for a $-325{\sim}+400$ mesh sample, and the calculated power absorption was as high as 80% in the frequency range over 2 GHz.

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참고문헌

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피인용 문헌

  1. Electromagnetic Wave Shielding Effect of Nano-powder Dispersed Epoxy Resin Composite vol.22, pp.4, 2015, https://doi.org/10.4150/KPMI.2015.22.4.234
  2. Influence of Coating Agent and Particle Size on the Soft Magnetic Properties of Fe Based Nano Crystalline Alloy Powder Core vol.25, pp.3, 2015, https://doi.org/10.4283/JKMS.2015.25.3.067