Composite nickel coatings containing lubricating oil microcapsules and their tribological properties

Surface engineering has been widely used to improve the wear and friction properties of articles. A frequently used technique to achieve such a goal is co-electrodeposition of a metal with solid particles such as SiC, Al2O3, BC and ZnO2. In this paper, we present a new technique for the preparation of composite coatings of nickel and liquid lubricating oil microcapsules, and the test results on the wear and friction properties of the coatings. The results demonstrate that the wear resistance is greater and kinetic friction coefficients substantially lower for the composite coatings than those for coatings with only nickel