Growth and electrochemical behaviour of self-organized TiO2 nanotube arrays on Ti-6Al-7Nb

Anandan, C and Mohan, L and Rajendran, N (2014) Growth and electrochemical behaviour of self-organized TiO2 nanotube arrays on Ti-6Al-7Nb. In: ICONEST-2014, 07 Aug 2014, IISc, Bangalore.

Full text available as:
[img] PDF
Download (26Kb)

    Abstract

    Titanium being bio-inert shows poor bone cell adhesion with an intervening fibrous capsule. It could be made bio- active by several methods including growing in situ TiO2 layer on Ti-surface. In the present work, we investigate the formation of self-organized titanium oxide nanotube layers by anodic oxidation on titanium alloy Ti-6Al-7Nb in electrolyte solution containing HF and H2SO4. The anodized surface was characterized by micro-Raman, XRD and FESEM. The corrosion behavior of the treated and untreated samples was investigated through electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization studies in simulated body fluid (Hanks’ solution). The investigations show that the native oxide on the sample is replaced by self assembled nano array by anodisation. Corrosion resistance of the anodized sample is comparable with that of the untreated samples. Electrochemical impedance data of the substrate was fitted with two time constant equivalent circuit and that of anodized samples with three time constant equivalent circuit.

    Item Type: Conference or Workshop Item (Paper)
    Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
    Division/Department: Surface Engineering Division, Other , Other
    Depositing User: Mrs SK Pratibha
    Date Deposited: 18 Jun 2015 13:47
    Last Modified: 18 Jun 2015 13:47
    URI: http://nal-ir.nal.res.in/id/eprint/12174

    Actions (login required)

    View Item