Structural and electrochemical behaviour of sol-gel zirconia films on 316L stainless-steel in simulated body fluid environment |
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| Affiliation: | 1. School of Chemical and Environmental Engineering, Yangtze University, Jingzhou, 434023, PR China;2. Technology & Engineering Research Institute CCDC, CNPC, Xi´an, 710018, PR China;3. Changqing Downhole Technology Operation Company, CNPC Chuanqing Drilling Engineering Company, Xi´an, 710018, PR China;1. Condensed Matter Chemistry Group, Quantum Beam Science Center, Japan Atomic Energy Agency, Shirakata 2-4, Tokai-mura, Ibaraki 319-1195, Japan;2. Quantum Beam Science Center, Japan Atomic Energy Agency, Kouto 1-1-1, Sayo-cho, Hyogo 679-5143, Japan;3. Nuclear Engineering Science Center, Japan Atomic Energy Agency, Shirakata 2-4, Tokai-mura, Ibaraki 319-1195, Japan;4. Japan Nuclear Fuel Limited, 4-108 Aza Okitsuke, Oaza Obuchi, Rokkasho-mura, Aomori 030-3212, Japan;1. Department of Applied Geology, Georg-August-Universität Göttingen, Goldschmidtstrasse 3, Göttingen and 37077, Germany;2. Institute of Forestry and Environmental Sciences, University of Chittagong, Chittagong and 4331, Bangladesh |
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| Abstract: | 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 °C in vacuum. The resultant films were characterized by thermal studies (TGA-DTA), XRD, FT-IR and polarization studies. |
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