Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
권호 표지
DOI QR코드

DOI QR Code

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

연자성 합금 분말의 입자크기에 따른 전자파 흡수 특성 비교

  • 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)
  • 홍순호 (인제대학교 나노시스템공학과) ;
  • 손근용 (인제대학교 나노시스템공학과) ;
  • 박원욱 (인제대학교 나노시스템공학과) ;
  • 남정미 (한국기계연구원 부설 재료연구소) ;
  • 문병기 (한국기계연구원 부설 재료연구소) ;
  • 송용설 ((주)아모센스)
  • Published : 2007.08.28
Download PDF
⟨ Previous Next ⟩

Abstract

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.

Keywords

References

  1. D. I. Kim: Engineering ofElectromagnetic Wave Absorber, Daeyoung Publication Co. (2006) 40; 김동일 : 전파흡수체공학, 대영사 (2006) 40-50
  2. M. Amano and Y Kotsuka: J. of lEEE Trans on MTTs, 51 (2003) 238
  3. J. M. Song, D. I. Kim, S. J. Kim, S. M. Ok, B. Y. Kim, W. K. Park, Y. G. Lee, H. J. Yoon, K. M. Kim and B. D. Yea: J. KEES, 14 (2003)190
  4. Vacuumschmelze Gmbh, Toroidal Cores of VITROPERM, Data Sheet PW-014, (1993)
  5. S. Yoshida, M. Sato, E. Sugawara and Y. Shimada: J. Appl. Physics, 85 (1999) 4636 https://doi.org/10.1063/1.370432
  6. M. Anhalt and Weidenfeller: J. Appl. Phys., 101 (2007) 023907 https://doi.org/10.1063/1.2424395
  7. K. S. Lee, Y. C. Yoon, G B. Choi, S. S. Kim and J. Y. Lee: J. KEES, 16 (2005) 228
  8. S. T. Kim, B. K. Oh, S. S. Kim, H. S. Cho and J. H. Lee: J. Kor. Inst. Mag., 14 (2004) 174
  9. O. Hashimoto, Y. Takase and S. Haga: Trans. IECIE Japan, J86-B(1)(2003) 113

Cited by

  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