Journal
MATERIALS LETTERS
Volume 57, Issue 26-27, Pages 4202-4205Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-577X(03)00290-8
Keywords
zirconia; sol-gel; 316L SS; dip coating; corrosion
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Sol-gel thin film offers a number of advantages that makes it an attractive method for obtaining ceramic coatings on metallic implants. In this study, the feasibility of using a polymeric sol-gel zirconia film on 316L SS substrate was evaluated using potentiodynamic polarization measurements to measure the corrosion resistance in simulated body fluid environment. Fairly uniform, dense and crack-free films were produced by dip-coating the 316L stainless-steel substrate in a precursor solution containing sonocatalysed zirconium propoxide and yttrium acetate, followed by firing at 600 degreesC in vacuum. The resultant films were characterized by thermal studies (TGA-DTA), XRD, FT-IR and polarization studies. (C) 2003 Elsevier Science B.V. All rights reserved.
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