Improvement of Corrosion Resistance of Stainless Steel by ZrO2-SiO2 Sol-Gel Coatings
ZrO2-SiO2 coatings deposited on 316 L stainless steel were prepared to protect chemically the substrates by sol-gel process using Zr(OC3H7 n)4/Si(OC2H5)4 as precursors. The influence of the ZrO2-SiO2 coatings on the corrosion resistance of the 316 L stainless steel was evaluated with the potentiodynamic polarization curves in deareated 15% H2SO4 solutions at 25, 40 and 50 °C . Comparative test was performed on uncoated one. The values of the electrochemical parameters explain how. ZrO2-SiO2 films increase the resistance of stainless steel against corrosion.
Hyung Sun Kim, Yu Bao Li and Soo Wohn Lee
D. Y. Shin et al., "Improvement of Corrosion Resistance of Stainless Steel by ZrO2-SiO2 Sol-Gel Coatings", Materials Science Forum, Vols. 510-511, pp. 442-445, 2006