✦ LIBER ✦

Modeling of chemical vapor infiltration of carbon composites with pyrolytic carbon

✍ Scribed by P. McAllister; E.E. Wolf

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 492 KB
Volume: 45
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(90)80135-2

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✦ Synopsis

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 profiles and mass deposition within a porous substrate. The effects of the initial Thiele modulus for the deposition reaction were examined and it was found that as the initial Thiele modulus increased, the uniformity of deposition and the maximum level of infiltration decreased.

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