Sliding Wear Property of Cu Based Composite Materials Reinforced by Carbon NanotubeGH

Carbon nanotube was used as a reinforcement agent to prepare Cu based composite. The friction and wear behaviors of the composite were examined on an MM 200 frction and wear tester at ambient condition. The microstructure and worn surface morphology of the composite were analyzed with scanning electron microscopy, and the composition of the wear debris was determined with X ray diffraction. It was found that the wear process of the composite was composed of running in and steady state wear. Oxidation wear was dominant and accompanied with abrasive wear during the steady state wear. The friction and wear behaviors of the composite were dependent on the testing conditions, and the optimal friction and wear behaviors could be achieved at a carbon nanotube volume fraction of 12%￣15%.