Antiwear properties of carbon-coated copper nanoparticles used as an additive to a polyalphaolefin

作者：Viesca J L^*; Hernandez Battez A; Gonzalez R; Chou R; Cabello J J

来源：Tribology International, 2011, 44(7-8): 829-833.

DOI：10.1016/j.triboint.2011.02.006

• Copper nanoparticles
• Carbon-coated copper nanoparticles
• Additives
• Wear behavior

This paper studies the influence of the addition of 25 nm carbon-coated copper nanoparticles on the tribological behavior of a polyalphaolefin (PAO6) and compares this behavior with the case of non-coated copper nanoparticles, determining the influence of coating. A block-on-ring tribometer, a four-ball machine, SEM and EDS were used in this research. The study concludes that the addition of carbon-coated copper nanoparticles decreases wear and increases the load-carrying capacity of PAO6. This tribological improvement is due to the deposition of nanoparticles on the rubbing surfaces and probably by their action as tiny bearings. The carbon-coated copper nanoparticles did not behave better than non-coated ones.

• 出版日期2011-7