Please use this identifier to cite or link to this item: doi:10.22028/D291-24168
Title: Sol-gel ZrO2 coatings for chemical protection of stainless steel
Author(s): De Lima Neto, Pedro
Atik, Mohamed
Avaca, Luis A.
Aegerter, Michel A.
Language: English
Year of Publication: 1994
OPUS Source: Journal of sol-gel science and technology. - 1. 1994, 2, S. 177-184
SWD key words: Sol-Gel-Verfahren
DDC notations: 500 Science
Publikation type: Journal Article
Abstract: ZrO2 coatings deposited on 316 L stainless steel sheets were synthesized by sol-gel method using Zr(OC3H7)4 as precursor and isopropanol, glacial acetic acid, and water as solvents for application with ultrasounds. Different solutions for dip-coating were prepared with compositions varying between 0.025 and 0.9 mol/dm(3) of ZrO2. X-ray diffraction shows that the films densified at 800°C are crystalline with a tetragonal structure. The thickness of the coatings varied from 0.35-0.75 µm. The influence of the ZrO2 coatings on the corrosion behavior of stainless steel substrates in aqueous NaCI was studied through potentiodynamic polarization curves at 1 mV/s. The values of the electrochemical parameters allow for an explanation of the role of the films in the increased resistance of steel against corrosion in moderately aggressive environments.
Link to this record: urn:nbn:de:bsz:291-scidok-23497
Date of registration: 4-Sep-2009
Faculty: SE - Sonstige Einrichtungen
Department: SE - INM Leibniz-Institut für Neue Materialien
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