Alpha 2.0
Login Register
» Articles » PMID: 25482412

The Effects of a SiO2 Coating on the Corrosion Parameters CpTi and Ti-6Al-7Nb Alloy

Overview
Journal Biomatter
Specialties Biomedical Engineering
Biotechnology
Date 2014 Dec 9
PMID 25482412
Authors
Marcin Basiaga
Witold Walke
Zbigniew Paszenda
Pawel Karasinski
Janusz Szewczenko
Affiliations
Soon will be listed here.
Abstract

The aim of this paper was to evaluate the usefulness of the sol-gel method application, to modificate the surface of the Ti6Al7Nb alloy and the cpTi titanium (Grade 4) with SiO2 oxide, applied on the vascular implants to improve their hemocompatibility. Mechanical treatment was followed by film deposition on surface of the titanium samples. An appropriate selection of the process parameters was verified in the studies of corrosion, using potentiodynamic and impedance method. A test was conducted in the solution simulating blood vessels environment, in simulated body fluid at t = 37.0 ± 1 °C and pH = 7.0 ± 0.2. Results showed varied electrochemical properties of the SiO2 film, depending on its deposition parameters. Correlations between corrosion resistance and layer adhesion to the substrate were observed, depending on annealing temperature.

References
1.
Areva S, Aaritalo V, Tuusa S, Jokinen M, Linden M, Peltola T . Sol-Gel-derived TiO2-SiO2 implant coatings for direct tissue attachment. Part II: Evaluation of cell response. J Mater Sci Mater Med. 2007; 18(8):1633-42. DOI: 10.1007/s10856-007-3064-z. View
2.
Patel A, Knowles J . Investigation of silica-iron-phosphate glasses for tissue engineering. J Mater Sci Mater Med. 2006; 17(10):937-44. DOI: 10.1007/s10856-006-0183-x. View
3.
Shibli S, Mathai S . Development and bio-electrochemical characterization of a novel TiO(2)-SiO (2) mixed oxide coating for titanium implants. J Mater Sci Mater Med. 2008; 19(8):2971-81. DOI: 10.1007/s10856-008-3409-2. View
4.
Huan Z, Chang J . Study on physicochemical properties and in vitro bioactivity of tricalcium silicate-calcium carbonate composite bone cement. J Mater Sci Mater Med. 2008; 19(8):2913-8. DOI: 10.1007/s10856-008-3423-4. View
5.
Ni S, Chang J, Chou L . In vitro studies of novel CaO-SiO2-MgO system composite bioceramics. J Mater Sci Mater Med. 2007; 19(1):359-67. DOI: 10.1007/s10856-007-3186-3. View