Research Status and Prospect of Antioxidation Coatings for Carbon/Carbon Composites

Oxidation of carbon/carbon (C/C) composites limits their applications as the high-temperature structural materials in aeronautics and aerospace fields. Coating is a logical method for protection of C/C composites against oxidation at high temperature. The research status of several oxidation resistant coatings, including glass, metal, ceramic and composite coatings are reviewed. Development of the traditional preparation technologies and exploitation of new methods for the preparation of oxidation resistant coatings are introduced. The present problems and the potential development direction on the investigation of oxidation resistant coatings for C/C composites are also proposed.