Influence of SiC infiltration on some properties of porous carbon materials

The work concerns the investigation of the microstructure changes of carbon industrial materials of various porosity after the pulse chemical vapour infiltration (PCVI). The authors have focused their study on the initial steps of infiltration method up to 100 pulses. The experimental data indicate the complex nature of infiltration process due to complex geometry of pores in these materials, non-stability of matrix, influence of thermal stresses. At the initial steps of infiltration process, apparent improvement of oxidation resistance can be observed.