BTAINING OF CALCIUM-PHOSPHATE COATINGS ON THE TITANIUM SURFACE BY MICRO-ARC OXIDATION

The results of experiments on obtaining calcium-phosphate coatings on substrates of titanium grade VT1-0 by micro-arc oxidation (MAO) are presented. The coatings were obtained by adding different amounts of titanium oxide nanoparticles to the electrolyte. The microstructure and tribological properties of calcium phosphate coatings were investigated. In conducted research results have been established and determined optimal modes and parameters for obtaining calcium phosphate coatings. It is shown that the addition of titanium oxide nanoparticles to the electrolyte can affect the structure also the strength of the obtained coatings. The research results led to conclude that such treatment of MAO from titanium alloys is promising to improve their splices with bone tissue.