A.V. Taran
National Science Centre “Kharkov Institute of Physics and Technology” (NSC KIPT), Institute of Plasma Physics, Kharkov, Ukraine
I.E. Garkusha
National Science Centre “Kharkov Institute of Physics and Technology” (NSC KIPT), Institute of Plasma Physics, Kharkov, Ukraine
V.S. Taran
National Science Centre “Kharkov Institute of Physics and Technology” (NSC KIPT), Institute of Plasma Physics, Kharkov, Ukraine
A.I. Timoshenko
National Science Centre “Kharkov Institute of Physics and Technology” (NSC KIPT), Institute of Plasma Physics, Kharkov, Ukraine
I.A. Misiruk
National Science Centre “Kharkov Institute of Physics and Technology” (NSC KIPT), Institute of Plasma Physics, Kharkov, Ukraine
M.A. Sergiets
National Science Centre “Kharkov Institute of Physics and Technology” (NSC KIPT), Institute of Plasma Physics, Kharkov, Ukraine
T.S. Skoblo
National Technical University of Agriculture, Kharkov, Ukraine
S.P. Romaniuk
National Technical University of Agriculture, Kharkov, Ukraine
T.V. Maltsev
National Technical University of Agriculture, Kharkov, Ukraine
V.V. Starikov
National Technical University “Kharkov Polytechnic Institute”, Kharkov, Ukraine
A.A. Baturin
National Technical University “Kharkov Polytechnic Institute”, Kharkov, Ukraine
A.G. Mamalis
Project Centre for Nanotechnology and Advanced Engineering, NCSR “Demokritos”, Athens, Greece
Abstract
TiO2 coatings on AISI 430 stainless steel were produced by the vacuum-arc deposition technique with the application of a modified curvilinear magnetic filter, which allowed enhanced deposition rates up to 50 μm/h with a decrease of the quantity of macroparticles. The structure and chemical and phase compositions of the coatings were investigated by SEM together with EDX, XRF and XRD analysis. According to X-ray diffraction, the formation of single-phase TiO2 took place. Mechanical and tribological properties were determined. The average hardness of the coatings was 13.8 GPa and the Young’s modulus was 211 GPa. Dry friction wear tests revealed high resistance of the coating to wear and a low friction coefficient under a load of 50 N. There was a significant decrease of E. coli colonies during 20 min UV exposure on samples with the coating, demonstrating photocatalytic bactericidal activity.
