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탄화규소 불투명화재와 세라믹섬유가 Fumed 실리카 단열재의 열전도도에 미치는 영향

Effect of Ceramic Fibers and SiC Opacifiers on Thermal Conductivities of Fumed Silica-Based Thermal Insulation Media

  • 권영필 (명지대학교 신소재공학과) ;
  • 권혁천 (명지대학교 신소재공학과) ;
  • 박성 (명지대학교 신소재공학과) ;
  • 이재춘 (명지대학교 신소재공학과)
  • Kwon, Young-Pil (Department of Materials Science and Engineering, Myongji University) ;
  • Kwon, Hyuk-Chon (Department of Materials Science and Engineering, Myongji University) ;
  • Park, Sung (Department of Materials Science and Engineering, Myongji University) ;
  • Lee, Jae-Chun (Department of Materials Science and Engineering, Myongji University)
  • 발행 : 2007.12.31

초록

The thermal conductivities of nano-sized fumed silica-based insulation media were investigated by varying a mean particle size of the silicon carbide opacifiers and ceramic fiber content. Opacifying effect of ceramic fiber and silicon carbide powders was discussed in terms of their content and the mean particle size of them. As the fiber contents increased from 10 wt% to 30 wt% in a material, its thermal conductivity at temperatures of about $620^{\circ}C$ decreased from 0.171 $Wm^{-1}K^{-1}$ to 0.121 $Wm^{-1}K^{-1}$. Meanwhile, the thermal conductivity at temperatures of about $625^{\circ}C$ decreased from 0.128 $Wm^{-1}K^{-1}$ to 0.092 $Wm^{-l}K^{-1}$ as the mean SiC particle size decreased from $31{\mu}m$ to $10{\mu}m$.

키워드

참고문헌

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피인용 문헌

  1. Effects of SiC Particle Size and Inorganic Binder on Heat Insulation of Fumed Silica-based Heat Insulation Plates vol.53, pp.4, 2016, https://doi.org/10.4191/kcers.2016.53.4.386