Abstract
Nanotubular oxide layer formation on biomedical grade α + β type Ti–13Nb–13Zr alloy was investigated using anodization technique as a function of applied dc potential (10–40 V) and anodizing time (30–180 min) in 1 M H3PO4 + 0.5 wt% NaF at room temperature. The as-formed and crystallized nanotubes were characterized using SEM, XRD, and TEM. There was a bimodal size distribution of nanotubes with diameters at the range of 25–110 nm. Nanotubes nucleated on β matrix exhibited uniform surface appearance with circular morphology, whereas those nucleated on α phase yielded parabolic shape. TEM/EDS analysis detected the three component elements of the alloy in the nanotube. Heat treatment significantly altered the distinct interface between the nanotubes and the barrier oxide layer.
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Saji, V.S., Choe, H.C. & Brantley, W.A. Nanotubular oxide layer formation on Ti–13Nb–13Zr alloy as a function of applied potential. J Mater Sci 44, 3975–3982 (2009). https://doi.org/10.1007/s10853-009-3542-4
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DOI: https://doi.org/10.1007/s10853-009-3542-4