Synthesis with Variation of Some Basic Properties of Si-Al-O-N- Based Ceramic Materials

Sialon is an excellent material belonging to the oxynitride ceramics. It has high strength, wear resistance, and other mechanical and chemical properties. b–sialon has the general formula of Si6ZAlZOZN8-z,where z=0 to 2.1. In the present work in total nine different Sialon samples with different compositions were sintered at 7 different temperatures viz., 1575 to 1840oC. Green density, fired density, % linear shrinkage at different temperatures and compositions were reported. Theoretical density of 3.2 gm/cc. was almost reached. The properties were compared and various parameters were corroborated In terms of at % N.