한국분말재료학회지 (Journal of Powder Materials)

  • 제15권1호
  • /
  • Pages.53-57
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  • 2008
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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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BaTiO3 분말과 분산제 첨가에 따른 Fe계 나노결정 P/M시트의 전자파흡수 특성변화

The Characteristic Changes of Electromagnetic Wave Absorption in Fe-based Nanocrystalline P/M Sheet by the Additions of BaTiO3 Powder and Dispersant

  • 김미래 (인제대학교 나노시스템 공학과) ;
  • 조현정 (인제대학교 나노시스템 공학과) ;
  • 박원욱 (인제대학교 나노시스템 공학과)
  • Kim, Mi-Rae (Department of Nano System Engineering, Inje University) ;
  • Cho, Hyeon-Jeong (Department of Nano System Engineering, Inje University) ;
  • Park, Won-Wook (Department of Nano System Engineering, Inje University)
  • 발행 : 2008.02.28
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초록

The amorphous $Fe_{73}Si_{16}B_7Nb_3Cu_1$(at%) alloy strip was pulverized using a jet mill and an attrition mill to get flake-shaped powder. The flake powder was mixed with dielectric $BaTiO_3$ powder and its dispersant to increase the permittivity. The powders covered with dielectric powders and its dispersant were mixed with a binder and a solvent and then tape-cast to form sheets. The absorbing properties of the sheets were measured to investigate the roles of the dielectric powder and its dispersant. The results showed that the addition of $BaTiO_3$ powders and its dispersant improved the absorbing properties of the sheets noticeably. The powder sheet mixed with 5 wt% of $BaTiO_3$ powder and 1 wt% of dispersant showed the best electromagnetic wave absorption rate because of the increase of the permittivity and the electrical resistance.

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참고문헌

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피인용 문헌

  1. The Effect of Carbon Black Additions on Electromagnetic Wave Absorption of Fe73Si16B7Nb3Cu1 Base P/M Sheets vol.1118, pp.1946-4274, 2008, https://doi.org/10.1557/PROC-1118-K07-11
  2. Effects of various barium titanate additives on the electromagnetic wave absorbing behavior of FeSiBNbCu P/M sheets vol.144, pp.1742-6596, 2009, https://doi.org/10.1088/1742-6596/144/1/012061