Microstructure Characterization of the Cu-Ti-C Composites Prepared by Mechanical Alloying and Spark Plasma Sintering

The evenly dispersed Cu-Ti-C composites have been synthesized successfully from the element powders by mechanical alloying (MA) and spark plasma sintering（SPS）techniques. The evolution of microstructure with different processing parameters has been investigated by XRD and SEM. The Cu-TiC and the Cu-Ti2Cu3-C composites with different hardness and density were obtained from different content of Cu, milling time and sintering temperature. The effect of Cu content in the compound powders, milling times and sintering temperatures on the solid solution and reaction process of Cu-Ti-C system was also discussed and analyzed.