A series of copper–Al2O3 composite materials (CACMs) with 0, 2, 4, and 6 wt.% of Al2O3 (average size about 80 nm) was fabricated by powder metallurgy method. The tribological behavior of CACMs was investigated by a ring-on-block sliding friction test. The results show that the hardness and the wear resistance of CACMs are improved by the addition of Al2O3. The CACMs with 0% Al2O3 (pure copper) shows the mechanism of adhesive wear and have very poor wear resistance. By comparing with the pure copper, the wear resistance of the CACMs with 2% and 6% Al2O3 is improved. When the proportion of Al2O3 is 4%, slightly abrasive wear occurs at the interface between two sliding surfaces, and the CACMs achieve higher wear resistance in comparison to that with 2% and 6% Al2O3.
Friction and Wear Behavior of Nano-Al2O3 Particles Reinforced Copper Matrix Composites
Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received March 23, 2014; final manuscript received July 1, 2014; published online October 3, 2014. Assoc. Editor: Dae-Eun Kim.
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Li, G., Peng, N., Sun, D., and Sun, S. (October 3, 2014). "Friction and Wear Behavior of Nano-Al2O3 Particles Reinforced Copper Matrix Composites." ASME. J. Tribol. January 2015; 137(1): 011604. https://doi.org/10.1115/1.4028486
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