![]() ![]() ![]() The wear rate of titanium with protective composite coating was much lower than that of titanium with DLC mono-film. ![]() Although the friction coefficient of the composite coating and the DLC mono-film was similar under both light load and heavy load conditions, the wear life of the composite coating was about 43% longer than that of DLC mono-film under heavy load condition. The fabricated TiO 2/DLC composite coating exhibited a more stable and much lower friction coefficient than anodic TiO 2 mono-film. Results show that the DLC deposition significantly decreased the surface roughness and porosity of spark-anodized titanium. The microstructure and tribological properties of TiO 2/DLC composite coating were investigated and compared with the anodic TiO 2 mono-film and DLC mono-film. In this study, the diamond-like carbon (DLC) was introduced into the micro-pores of spark-anodized titanium by the magnetron sputtering technique and a TiO 2/DLC composite coating was fabricated. Spark-anodization of titanium can produce adherent and wear-resistant TiO 2 film on the surface, but the spark-anodized titanium has lots of surface micro-pores, resulting in an unstable and high friction coefficient against many counterparts. ![]()
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