Fabrication of interface coating for ceramic matrix composites using rotating-CVI

Dense pyrolytic carbon interface coating with uniform thickness and regular surface was fabricated using rotating chemical vapor infiltration (RCVI) process on 2-D carbon cloth within optimal parameters, that is, low pressure (5kPa), high temperature (1100°C), high propylene concentration (62. 5 vol%) and 3. 5 mm · min^-1 rotational linear velocity. The results in this paper show that there are more important effect of deposition temperature on the properties of coating surface, and low pressure, optimization of geometric construct of deposition furnace are valid for preventing forming-soot from pyrolytic carbon deposition process on conditions of high temperature and high propylene concentration.