Gas pressure sintering of Al2O3/TiCN composite

Al2O3/TiCN composites have been fabricated by gas pressure sintering, which overcomes the limitations of hot pressing. The densification behavior and mechanical properties of the Al2O3 gas pressure sintered with 30 wt.% TiCN at different temperatures have been investigated. The gas pressure sintered Al2O3-30 wt.%TiCN composite achieved a relative density of 99.5%, a bending strength of 772 MPa, a hardness of 19.6 GPa, and a fracture toughness of 5.82 MPa·M1/2.