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:	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)
Depositing User:	Ms. Alphones Mary
Date Deposited:	18 Jun 2015 08:18
Last Modified:	18 Jun 2015 08:18
URI:	http://nal-ir.nal.res.in/id/eprint/12164

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