Effect of surface treatment with concentrated energy fluxes on the properties of composite materials based on silicon carbide and coatings made from such composites

Based on a study of the structure and composition of the composite ceramic SiC - Al2O3 - ZrO2, its tribomechanical properties and behavior in high-temperature corrosion, we recommend the material for use as sealing elements and for deposition of wear-resistant and corrosion-resistant coatings. We have studied the formation of gradient layers when the ceramic surface is modified with refractory titanium compounds RN - TiB2 (1:1) with an Fe(Ni) - Cr - Al undercoat using concentrated solar radiation and when the steel surface is modified with laser irradiation of the SiC - Al2O3 - ZrO2 coats. We have shown that laser modification of steel by the silicon carbide-based composite increases its corrosion resistance by a factor of 4-5 at 800-900 degrees C.