SiC/SiC ceramic matrix composites (CMC) have great potential to be utilized as structure material in gas turbines

due to their excellent properties such as low density

high strength and toughness

superior temperature oxidation and creep resistances

high thermal shock and corrosion resistances

low thermal expansion coefficient. In the present paper

development situation of the domestic and foreign SiC/SiC CMC is systematically reviewed from the fileds of silicon carbide fibers

preparation

interphase and coating. Moreover

the application of CMC on hot-structural parts of gas turbines

such as combustor liner

mixer

turbine shroud/wane/blade and nozzle flap

are introduced based on its property characteristic.