PHYSICAL AND MECHANICAL CHARACTERISTICS OF MULTIFUNCTIONAL COATINGS BASED ON CERAMIC MATRICES
DOI:
https://doi.org/10.36773/1818-1112-2025-136-1-65-70Keywords:
coating, altins, fluorine, carbon, microhardness, adhesion, specific surface energy, scratch analysisAbstract
Recently, considerable attention of scientists has been paid to the development of coatings with high temperature characteristics and antifriction properties. These properties are based on the ability of high-entropy materials to contain refractory metals. In the process of their formation, objects of various functional significance are formed, which allows obtaining protective layers with unique properties. The article studies the physical and mechanical characteristics of vacuum refractory coatings based on altines doped with fluorine and carbon. The application of AlTiN, AlTiCN, AlTiN (C,F) coatings on a steel substrate was carried out on a UVNIPA-1-001 vacuum unit. Standard methods (microdurometric, scratch analysis, sessile drop method) were used to determine the properties of superhard vacuum coatings. The values of specific surface energy for composite coatings based on altines formed on these substrates were determined. It is shown that the formation of coatings based on altines reduces the values of the specific surface energy of the modified steel substrate. It is established that coatings based on altines doped with fluorine, carbon and formed on a steel substrate have microhardness values higher than those of the original altine coatings. This effect is due to an increase in the concentration of active charge centers on the substrate surface due to the use of multicomponent coatings. An increase in the number of active charge centers leads to an increase in the dispersion of the phases contained in the coating structure, which affects the microhardness of the coatings under study.
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