Influence of Alkali Treatment on Anodized Titanium Alloys in Wollastonite Suspension

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, foll...

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Bibliographic Details
Published in:Metals (Basel ) 2017-09, Vol.7 (9), p.322
Main Authors: Kazek-Kęsik, Alicja, Leśniak, Katarzyna, Zhidkov, Ivan, Korotin, Danila, Kukharenko, Andrey, Cholakh, Seif, Kalemba-Rec, Izabela, Suchanek, Katarzyna, Kurmaev, Ernst, Simka, Wojciech
Format: Article
Language:English
Subjects:
alkali treatment
Anodizing
Biocompatibility
Coating effects
coatings
Physical properties
plasma electrolytic oxidation
Surgical implants
Titanium alloys
Titanium base alloys
Titanium compounds
Wettability
Wollastonite
X ray photoelectron spectroscopy
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Summary: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.
ISSN:2075-4701
2075-4701
DOI:10.3390/met7090322