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J. Korean Ceram. Soc. > Volume 49(6); 2012 > Article
Journal of the Korean Ceramic Society 2012;49(6): 549.
doi: https://doi.org/10.4191/kcers.2012.49.6.549
짧은 섬유상간의 접합을 가진 Silicon Carbide Web 복합재료의 분율별 열전도 거동
김태언, 배진철1, 조광연1, 이동진1, 설용건2
연세대학교 신에너지전지융합기술 협동과정
1한국세라믹기술원 나노 IT 융합센터 에코복합센터
2연세대학교 화공생명공학과
Thermal Conducting Behavior of Composites of Conjugated Short Fibrous-SiC Web with Different Filler Fraction
Tae-Eon Kim, Jin Chul Bae1, Kwang Yeon Cho1, Dong Jin Lee1, Yong-Gun Shul2
New Energy and Battery Engineering, Yonsei University
1Division of Nano IT Convergence Center and Eco-composite Center, KICET
2Department of Chemical and Biomolecular Engineering, Yonsei University
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.
Key words: Silicon carbide, Polycabosilane, Electrospinning, Composites, Thermal conductivity
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