In this part a numerical model for the oxidation of CIC composites is devel
oped. It takes into account the morphological and the reactivity results de
termined in part I and II, respectively. The prediction ability of this mod
el has been checked for different types of composites oxidized in different
atmospheres and generally the trends of the experimental reaction curves a
re relatively well followed. This model allows to predict the consumption o
f carbon that occurs at surface or within the composite acid permits to est
imate oxidation or gasification phenomena in domains where chemistry as wel
l as gas diffusion control kinetics. Some examples of the use of the model
to design future devices or to get some information when experiments are im
possible, as plane atmospheric re-entry, are presented. This model seems to
be relevant for re-entry simulations in a scarce atmosphere, or for low or
medium flight altitudes, as well as for combustion chamber applications. (
C) 1999 Elsevier Science Ltd. All rights reserved.