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Influence of Alkali Treatment on Anodized Titanium Alloys in Wollastonite Suspension

Faculty of Chemistry, Silesian University of Technology, B. Krzywoustego Street 6, 44-100 Gliwice, Poland
Institute of Physics and Technology, Ural Federal University, Mira Street 19, Yekaterinburg 620002, Russia
M.N. Mikheev Institute of Metal Physics, RAS-Ural Division, Kovalevskoj Street 18, Yekaterinburg 620990, Russia
Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Mickiewicza Avenue 30, 30-059 Krakow, Poland
The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego Street 152, 31-342 Krakow, Poland
Authors to whom correspondence should be addressed.
Metals 2017, 7(9), 322;
Received: 12 July 2017 / Revised: 3 August 2017 / Accepted: 17 August 2017 / Published: 23 August 2017
(This article belongs to the Special Issue Plasma Electrolytic Oxidation)
The surface modification of titanium alloys is an effective method to improve their biocompatibility and tailor the material to the desired profile of implant functionality. In this work, technologically-advanced titanium alloys—Ti-15Mo, Ti-13Nb-13Zr and Ti-6Al-7Nb—were anodized in suspensions, followed by treatment in alkali solutions, with wollastonite deposition from the powder phase suspended in solution. The anodized samples were immersed in NaOH or KOH solution with various concentrations with a different set of temperatures and exposure times. Based on their morphologies (observed by scanning electron microscope), the selected samples were investigated by Raman and X-ray photoelectron spectroscopy (XPS). Titaniate compounds were formed on the previously anodized titanium surfaces. The surface wettability significantly decreased, mainly on the modified Ti-15Mo alloy surface. Titanium alloy compounds had an influence on the results of the titanium alloys’ surface modification, which caused the surfaces to exhibit differential physical properties. In this paper, we present the influence of the anodization procedure on alkali treatment effects and the properties of obtained hybrid coatings. View Full-Text
Keywords: titanium alloys; plasma electrolytic oxidation; coatings; alkali treatment titanium alloys; plasma electrolytic oxidation; coatings; alkali treatment
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MDPI and ACS Style

Kazek-Kęsik, A.; Leśniak, K.; Zhidkov, I.S.; Korotin, D.M.; Kukharenko, A.I.; Cholakh, S.O.; Kalemba-Rec, I.; Suchanek, K.; Kurmaev, E.Z.; Simka, W. Influence of Alkali Treatment on Anodized Titanium Alloys in Wollastonite Suspension. Metals 2017, 7, 322.

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