Carbon carbon composites have many excellent properties at high temperature, but it is higher than 400 °C temperature oxidation reaction occurs in the environment of oxygen, causing material performance degradation. Therefore, the carbon / carbon composite application of aerobic environment must have the oxidation protection at high temperature. Carbon / carbon composites oxidation protection mainly through the following two ways, namely, can take the matrix modification and surface activity at low temperature, passivation of carbon / carbon composites for protection; with the increase of temperature, methods must be used to prevent direct contact of coating of carbon / carbon composite materials with oxygen in order to achieve the purpose of protection, oxidation. The most widely used is the coating method, with the continuous advancement of technology, the carbon / carbon composite ultra high temperature properties are dependent on the more and more, and in the high temperature conditions the only feasible oxidation protection scheme is only the protective coating.

Carbon / carbon composite materials due to their unique properties, has been widely used in aerospace, automotive, medical and other fields, such as rocket engine nozzle and throat, the shuttle's end cap and the leading edge of the wings of the aircraft brake disc thermal protection system, etc..