采用SHS-加压法制TiC/Ni梯度材料。在TiC-Ni的燃烧烧结过程中,C溶入Ti-Ni溶液中,TiC从其中析出,TiC-Ni通过在压力下的液相烧结形成TiC/Ni梯度材料。TiC晶粒尺寸随Ni量的增加而变小是由于Ni稀释剂降低了燃烧温度。TiC外形随Ni量的减少由球形变为多边形,多边形晶粒的形成是液相烧结时组织调整的结果。 SHS-pressurized TiC / Ni gradient material. During the combustion sintering of TiC-Ni, C dissolves into the Ti-Ni solution from which TiC precipitates and TiC-Ni forms a TiC / Ni gradient material by liquid-phase sintering under pressure. The TiC grain size decreases with increasing Ni amount due to the Ni diluent lowering the combustion temperature. The shape of TiC changes from spherical to polygonal with the decrease of Ni content. The formation of polygonal grains is the result of the microstructure adjustment during liquid phase sintering.