• Title/Summary/Keyword: Polycabosilane

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Thermal Conducting Behavior of Composites of Conjugated Short Fibrous-SiC Web with Different Filler Fraction (짧은 섬유상간의 접합을 가진 Silicon Carbide Web 복합재료의 분율별 열전도 거동)

  • Kim, Tae-Eon;Bae, Jin Chul;Cho, Kwang Yeon;Lee, Dong Jin;Shul, Yong-Gun
    • Journal of the Korean Ceramic Society
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    • v.49 no.6
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    • pp.549-555
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    • 2012
  • Silicon carbide(SiC) exhibits many unique properties, such as high strength, corrosion resistance, and high temperature stability. In this study, a SiC-fiber web was prepared from polycarbosilane(PCS) solution by employing the electrospinning process. Then, the SiC-fiber web was pyrolyzed at $1800^{\circ}C$ in argon atmosphere after it was subjected to a thermal curing. The SiC-fiber web (ground web)/phenolic resin (resol) composite was fabricated by hot pressing after mixing the SiC-fiber web and the phenolic resin. The SiC-fiber web composition was controlled by changing the fraction of filler (filler/binder = 9:1, 8:2, 7:3, 6:4, 5:5). Thermal conductivity measurement indicates that at the filler content of 60%, the thermal conductivity was highest, at 6.6 W/mK, due to the resulting structure formed by the filler and binder being closed-packed. Finally, the microstructure of the composites of SiC-fiber web/resin was investigated by FE-SEM, EDS, and XRD.