Manju Chembath, J. N. Balaraju
This study explores the electrochemical characterization of surface-treated NiTi alloy using various techniques in a phosphate-buffered saline environment. The primary objective was to evaluate the impact of sol-gel titania thin film coating on the electrochemical properties of NiTi surfaces modified with acidified ferric chloride solution. Employing cyclic voltammetry, it was demonstrated that the sol-gel titania-coated surface exhibited electrochemical behaviors akin to those of pure titanium. The results indicated a stable passive layer on the modified NiTi for potentials exceeding 0.9 V. Electrochemical impedance spectroscopy revealed that the overall resistance for the sol-gel titania surface was on the order of 105 Ω, which was significantly higher, by two orders of magnitude, than that of the bare NiTi surface. Furthermore, analysis through electrochemical noise measurements highlighted a reduction in current noise post-coating, suggesting enhanced protective qualities of the surface against corrosive species. These findings were corroborated by dynamic impedance studies conducted on both bare and titania-coated NiTi, affirming the effectiveness of the sol-gel titania coating in improving biocompatibility and corrosion resistance for biomedical applications.
@article{f0867164-b32f-40ff-bf9a-019cf44199aa,
title={Characterization of Surface‑Treated NiTi Alloy by Various Electrochemical Techniques in Phosphate‑Buffered Saline},
author={Manju Chembath and J. N. Balaraju},
year={2018},
language={en}
}TY - JOUR TI - Characterization of Surface‑Treated NiTi Alloy by Various Electrochemical Techniques in Phosphate‑Buffered Saline AU - Manju Chembath AU - J. N. Balaraju PY - 2018 LA - en ER -
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