摘要
Ti_(3)SiC_(2)is considered as one of the candidates for pump impellers and as coating material on steel surfaces in heavy liquid metal cooled fast reactors because it resists oxygen and has high temperature strength.It is a ternary ceramic which combines metallic and ceramic properties.It has a high thermal strength,high melting point and high chemical resistance typical of ceramics.Its service temperature in air is limited to 1000℃[1-3].Like ametal,Ti3SiC2 resists thermal shock and has excellent electrical and thermal conductivity.Also,it is creep as well as fatigue resistant and readily machinable.Unfortunately,it cannot be welded and,compared with binary carbide ceramics like WC and TiC,it is relatively soft and not wear resistant[3].