Electrochemical Formation of Second Generation TiO2 Nanotubes on Ti13Nb13Zr Alloy for Biomedical Applications
A. Stróż a, G. Dercz a, B. Chmiela b, D. Stróż a and B. Łosiewicz a
aInstitute of Materials Science, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
bInsitute of Materials Science, Silesian University of Technology, Z. Krasińskiego 8, 40-019 Katowice, Poland
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The aim of this study was to obtain the second generation TiO2 nanotubes on the Ti13Nb13Zr alloy. Anodic oxidation of the alloy under study was carried out in 1 M (NH4)2SO4 electrolyte under voltage-time conditions of 20 V for 120 min. The morphological parameters of the obtained nanotubes of second generation such as the length (L), internal (Di) and outer (Do) diameter of nanotube were determined. It was found that the anodic oxidation of the Ti13Nb13Zr alloy conducted under proposed conditions allowed to obtain the single-walled nanotubes of the following geometrical parameters: the internal diameter 61 nm, outer diameter 103 nm, and the length 3.9 μm. The total surface area of the single-walled nanotubes was equal to 4.1 μm2, and the specific surface area per cm2 (As) was estimated to be 15.6 cm2/cm2. Formation mechanism, structure and optimal morphological parameters of the obtained single-walled nanotubes on the Ti13Nb13Zr alloy have been discussed in detail.

DOI: 10.12693/APhysPolA.130.1079
PACS numbers: 87.85.jj, 81.07.De, 82.47.-a