Dense TiC-Ni composites were fabricated by a new process of the gas-pressure combustion sintering. They were synthesized and simultaneously densified over 98% of theoretical from the mixed elemental powders under the Ar gas pressure below 100 MPa. The addition of Ni and TiC powders could reduce the high reaction heat and hence lead to control the grain growth in the sintered body. Some model samples of the functionally gradient materials for the TiC-Ni system were fabricated to demonstrate that the gas- pressure combustion sintering is an efficient process to develop such new high temperature materials.
