HYDROXYAPATITE AND ZINC OXIDE BASED TWO-LAYER COATING, DEPOSITED ON TI6AL4V SUBSTRATE

  • 11Sumy State University, Ministry of Education and Science of Ukraine, Sumy, UA
  • 2Thechnical University of Kosice,Department of Manufacturing Technologies, Faculty of Manufacturing Technologies with a seat in Presov, Presov, SK
  • 3Sumy State University, Ministry of Education and Science of Ukraine, Sumy, UA

Abstract

At first two-layer, HA-ZnO/Alg coating was obtained on the pre-anodized Ti6Al4V substrates by the thermal substrate deposition method (TSD). In the frame of this work, TSD method was at first applied for obtaining ZnO coating from aqueous alginate-containing solutions on a pre-deposited OH layer. XRD, SEM analyzes show that the biopolymer has a significant influence on the coatings formation, their morphology, texture, structure of ZnO nanoparticles. The average rate of HA deposition and ZnO deposition from alginate containing solution are 4 μm/min and 30 μm/min, respectively. In the presence of alginate boll-shaped ZnO microparticles are formed on the HA layer, consisting of needle-shaped crystals. The obtained coating is promising for medical implants, based on titanium and its alloys, because they potentially have both bioactivity and antibacterial activity.

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