Research on Properties of Silicon Nitride Ceramic Prepared by Reaction-bonded Sintering Grouting
Two kinds of slurry with different pH were prepared in order to investigate the influence of grouting on reaction-bonded sintering silicon nitride.Fracture toughness of reaction-bonded sintering silicon nitride materials was investigated by indentation.Thermal shock resistance was investigated by quenching method.The results show that thermal shock resistance of silicon nitride when pH=11 is better than that of when pH=11.9.Fracture toughness of the former is 5.23 MPa.m1/2.