Mazilin B. Structure and mechanical properties of combined nanocomposite coatings on the basis of ceramic materials

The dissertation work is devoted to solving one of the important problems of modern applied physics and physics of nanomaterials, which is to create a physical and technological basis for the formation of plasma nanocomposite functional coatings based on ceramic compounds and to determine the relationship of structural-phase state of the coatings to the mechanical and physical-chemical properties of the “metal substrate-coating” composites. The aim of this work is to determine the influence of physical and technological deposition parameters on the formation of functional coatings based on multielement ceramic compounds created by ion-plasma evaporation of materials of different composition. Methods of formation and research of structural-phase state and properties of coatings: vacuum arc deposition, magnetron sputtering, plasma-electrolyte surface polishing, scanning electron microscopy, optical metallography, X-ray microanalysis, diffractometry and photoelectron spectroscopy, measurement of microhardness, sclerometry, profilometry, tribotechnical tests, thermal effect. Numerous methods and methods of mathematical statistics were used in processing experimental data. From the practical point of view, the combined nanocomposite coatings investigated in the work have demonstrated a high level of mechanical and other physical and chemical properties, which makes these coatings promising for the protection of equipment and device elements of various areas of mechanical engineering, starting with the prevention of wear and destruction of metal, ceramic metal and superhard ceramic cutting tools. to improving tribological characteristics of friction pairs and creating heat resistant coatings of aircraft and missile equipment. The determination of the connection between the structural-phase state of the coatings and the mechanical and physical-chemical properties of the "metal substrate-coating" composites has expanded and deepened the knowledge about the physical and technological factors for controlling the structural-phase state of solid composites with functional coatings.