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Issue 113, 2015
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Corrosion behaviour of tetrahedral amorphous carbon (ta-C) filled titania nano tubes

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Abstract

TiO2 nanotubes were formed by anodic oxidation on Ti–6Al–7Nb and the nanotubes were filled with tetrahedral amorphous carbon (ta-C) by cathodic arc evaporation (CAE). The samples were characterized by field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS) and micro Raman studies. The corrosion behaviour of the Ti–6Al–7Nb substrate, substrate with self-organized TiO2 nanotubes (TNT) and ta-C filled TiO2 nano tubes (ta-C TNT) were 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 a self assembled nano array by an anodisation process and the pores can be filled with ta-C. Potentiodynamic polarization and electrochemical impedance studies of ta-C filled TNT sample show that the corrosion resistance is comparable with TNT samples.

Graphical abstract: Corrosion behaviour of tetrahedral amorphous carbon (ta-C) filled titania nano tubes

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Publication details

The article was received on 23 Sep 2015, accepted on 26 Oct 2015 and first published on 26 Oct 2015


Article type: Paper
DOI: 10.1039/C5RA19625F
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RSC Adv., 2015,5, 93131-93138

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    Corrosion behaviour of tetrahedral amorphous carbon (ta-C) filled titania nano tubes

    L. Mohan, S. Viswanathan, C. Anandan and N. Rajendran, RSC Adv., 2015, 5, 93131
    DOI: 10.1039/C5RA19625F

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