폴리카보실란을 이용하여 탄소단열재에 코팅한 실리콘카바이드 코팅막의 내산화 특성 = Preperation of Silicon Carbide Oxidation Protection Film on Carbon Thermal Insulator Using Polycarbosilane and Its Characterization

다국어 초록 (Multilingual Abstract)

In order to improve the high temperature oxidation resistance and lifespan of mat type porous carbon insulation, SiC was coated on carbon insulation by solution coating using polycarbosilane solution, curing in an oxidizing atmosphere at $200^{\circ}C$, and pyrolysis at temperatures up to $1200^{\circ}C$. The SiOC phase formed during the pyrolysis process was converted into SiC crystals as the heat treatment temperature increased, and a SiC coating with a thickness of 10-15 nm was formed at $1600^{\circ}C$. The SiC coated specimen showed a weight reduction of 8.6 % when it was kept in an atmospheric environment of $700^{\circ}C$ for 1 hour. On the other hand, the thermal conductivity was 0.17 W/mK, and no difference between states before and after coating was observed at all.

참고문헌 (Reference)

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