고온에서 탄소/탄소 복합재료의 산화억제제의 영향

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

  • 최창구 (한국과학기술원 재료공학과) ;
  • 이원종 (한국과학기술원 재료공학과) ;
  • 박종욱 (한국과학기술원 재료공학과)
  • 발행 : 1991.06.01

초록

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.

키워드

참고문헌

  1. J. Am. Ceram. Soc. v.67 no.1 D.W. Mieskowski;T.E. Mitchell;A.H. Heuer
  2. Mass Transport Phenomena in Ceramics High Temperature Oxidation of Hot Pressed SiC J.W. Hinze;W.C. Tripp;H.C. Graham;A.R. Cooper(ed.);A.H. Heuer(ed)
  3. Proc. EMSA v.30 no.538 J.E. Doherty
  4. Published in J Am Ceram. Soc. G.H. Schiroky
  5. J. Korean Ceram Soc v.27 no.4 이문희;박종욱