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Two types of milled process are used in SPS to prepare TiC reinforcement Cu matrix composites: (a) Ti and C powders are milled together, and then mixed with Cu powders; (b) AU the three kinds of powders are milled together. The microstructures of specimens were analyzed with XRD, SEM and TEM. The pin-disk wear test was carried. It was found that TiC reinforcement formed in sintering by direct reaction in the method (a). However, in method (b), diffused reaction mechanism has also been confirmed in TiC forming process. All the composites exhibit good wear resistance at 200N normal load with lowest wear lose 1.4 × 10-5 mm3/Nm (method (a)) and 1.12 × 10 -5 mm3/Nm (method (b)) respectively. The composite sintered from the powders of the method (b) shows lower wear lose and a steadier friction coefficient at even normal load then the composites sintered from the other powders which show third body abrasion in wear test. © 2010 The Japan Institute of Metals.

The Influence of Technological Process on Dry Sliding Wear Behaviour of Titanium Carbide Reinforcement Copper Matrix Composites