Perspective high-temperature ceramic composite materials

The high-temperature glass-matrix and ceramic-matrix composites developed by the RIAM are overviewed. The distinctive properties of the developed composites are their high stability at temperatures above 1200A degrees C in an oxidizing medium, high endurance and corrosion resistance, and low density and thermal expansion. Therefore, these composites are unique for production of heat-loaded units and parts of advanced engines. A characteristic feature of the SiC/SiC ceramic-matrix composite is its high resistance (by contrast to traditional monolithic ceramics) to thermocyclic loadings in the medium of fuel combustion products, which is due to its regulated and manageable structure.