Jy. Ofori et Sv. Sotirchos, MULTICOMPONENT MASS-TRANSPORT IN CHEMICAL-VAPOR INFILTRATION, Industrial & engineering chemistry research, 35(4), 1996, pp. 1275-1287
The effects of multicomponent mass transport on the predictions of che
mical vapor infiltration models are investigated. The dusty-gas model
is used as basis for describing multicomponent transport in the pore s
pace of the preforms. Results are presented over a broad range of cond
itions extending from the bulk to the Knudsen diffusion regime using t
he full dusty-gas model and a number of variants. These variants are o
btained by simplifying the full form of the dusty-gas model and retain
ing or omitting the viscous flow terms. The presented results demonstr
ate the importance of using the complete form of the dusty-gas model i
n most applications and elucidate the implications of some of the simp
lifying assumptions that are commonly made in describing gaseous mass
transport in chemical vapor infiltration.