Carbon carbon composite material is a new type of high temperature material, with light weight, high modulus, high specific strength, low thermal expansion coefficient, high temperature resistance, heat shock resistance, corrosion resistance, good vibration absorption and so on.
In the application, as an anti ablation, short time use of the material, carbon carbon composites have been successfully applied in the aerospace industry, such as rocket engine exhaust nozzle, throat lining, aerospace aircraft wing leading edge and so on. In the field of aerospace applications, the most successful example when the number of carbon carbon composite material brake disc, in this area has formed a mature market.
Carbon carbon composite brake disk advantages mainly due to its own density, high temperature resistant characteristics, because its density is small, the use of carbon / carbon disk and can greatly reduce the weight of each aircraft. An aircraft brake friction caused by the temperature rise of more than 500, at this time, the high temperature resistance of carbon carbon material shows great superiority.
In order to solve the oxidation of carbon / carbon materials, the effects of matrix modification on the oxidation resistance of SiO2, ZrO2, Al2O3 and so on.
Carbon carbon composite material is not used for rotating parts of the engine yet, the reason is mainly antioxidant problem, the traditional design will not be suitable for carbon carbon composite materials, must be based on the characteristics of the material to carry out a special, new structural design.
The application prospect of carbon carbon composites is very attractive, but it is still dependent on a series of key problems to solve the key components of the aircraft engine.V