Electrochemical studies and growth of apatite on Molybdenum doped DLC coatings on titanium alloy β-21S

Anandan, C and Mohan, L and Dilli Babu, P (2014) Electrochemical studies and growth of apatite on Molybdenum doped DLC coatings on titanium alloy β-21S. Applied Surface Science, 296 . pp. 86-94. ISSN 0042-207X

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    Abstract

    Titanium alloy β-21S (Ti–15Mo–3Nb–3Al–0.2Si) was coated with molybdenum doped DLC by Plasma-enhanced chemical vapor deposition and sputtering. XRD, XPS and Raman spectroscopy show that Mo is present in the form of carbide in the coating. XPS of samples immersed in Hanks’ solution shows presence of calcium, phosphorous and oxygen in hydroxide/phosphate form on the substrate and Mo-doped DLC. Potentiodynamic polarization studies show that the corrosion resistance and passivation behavior of Mo-doped DLC is better than that of substrate. Electrochemical impedance spectroscopy (EIS) studies show that Mo-doped DLC samples behave like an ideal capacitor in Hanks’ solution.

    Item Type: Journal Article
    Additional Information: Copyright for this article belongs to M/s. Elsevier Publisher
    Uncontrolled Keywords: Titanium alloy;Mo–DLC;Apatite growth;Corrosion;XPS;EIS
    Subjects: AERONAUTICS > Aeronautics (General)
    Division/Department: Surface Engineering Division, Other , Other
    Depositing User: Ms. Alphones Mary
    Date Deposited: 18 Jun 2015 13:48
    Last Modified: 18 Jun 2015 13:48
    URI: http://nal-ir.nal.res.in/id/eprint/12164

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