Characteristics of Plasma-Electrolytic Oxide Coatings Formed on Aluminum and Titanium in Electrolytes with Siloxane Acrylate and Particles of Vanadium, Boron, and Aluminum Oxides

摘要

It is shown that aqueous suspension-emulsion electrolytes containing sodium silicate, siloxane-acrylate emulsion, and dispersed particles of oxides are promising for direct synthesis by the plasma-electrolytic oxidation method of coatings with multicomponent composition on titanium and aluminum. The formation processes, composition, and structure of the coatings were studied in electrolytes with 1-4-mu m particles of V2O5, B2O3, or Al2O3. The average content of metals and nonmetals of dispersed particles in the surface part of the coatings is similar to 1-2 at . The coatings have a developed surface morphology and contain in the surface part up to 50-73 at carbon.