Two-dimensional carbon/carbon composites were densified with carbon by pyrolysis of propane using the pulse chemical vapor infiltration (CVI) process which repeats the cycle of evacuation and introduction of gas. The experimental parameters were deposition temperature, reactant gas concentration, fl
Densification mechanism of chemical vapor infiltration technology for carbon/carbon composites
β Scribed by Jian-xun CHEN; Xiang XIONG; Qi-zhong HUANG; Mao-zhong YI; Bai-yun HUANG
- Book ID
- 117693356
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 956 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1003-6326
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An analysis of the reaction and diffusion of gases occurring simuitaneously with deposition of carbon in a porous material is presented. The model incorporates a scheme for the formation of carbon during the pyrolysis of a gaseous hydrocarbon to yield predictions for concentration and porosity profi
Early work on preparing carbon-carbon composites by using chemical vapor infiltration is discussed. Later work showed little influence of substrate on infiltration kinetics. and confirmed earlier relationships between property values and density. Yields of total carbon, soot, and CVD carbon are expl