Self-Lubricating Glass Composite Nanocoatings

The friction and wear characteristics of the developed nanostructured glass-composite self-lubricating coatings, the structural components of which have a qualitative influence on the graphitization process and ensure the formation of an alpha-graphite surface layer which minimizes contact parameters, were investigated. The positive role of the glass phase in the form of aluminoborosilicate, which changes the tribological properties of coatings, was established. The increase in adhesive strength achieved due to the formation of glassy sodium silicate surface layer during spraying was established. It is stated that the intercalation of the graphite layer by the particles of the subsurface zone does not influence sufficiently the tribotechnical characteristics of the coatings. The developed nanostructured glass coatings demonstrate high antifriction characteristics throughout the entire load-speed range of tests.