The Effects of Inhibitors Impregnated in C/C Composite at High Temperature

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J. Korean Ceram. Soc. > Volume 28(6); 1991 > Article

Journal of the Korean Ceramic Society 1991;28(6): 478.

고온에서 탄소/탄소 복합재료의 산화억제제의 영향

최창구, 이원종, 박종욱

한국과학기술원 재료공학과

The Effects of Inhibitors Impregnated in C/C Composite at High Temperature

ABSTRACT

Numerous researchers have observed the bubble formation from C/C composite at high temperature (1300$^{circ}C$∼1700$^{circ}C$). According to thermodynamic calculation, the bubble can be formed at the temperatures above 1500$^{circ}C$ in the case of SiC coated C/C composite. However, the bubble below 1500$^{circ}C$ could not be explained. Therfore, in an effort to explain the low temperature bubble formation, the effects of inhibitors such as B, Al, Zr and Si were thermodynamically investigated along with hydrogen and water vapor impurities resolved in C/C composite and SiC coating layer.