The Corrosion Study of ZrO2 Coatings on Metals
| Autor: | Gyula Tolnai, Graziella L. Turdean, Ioana Rotariu, Fiammetta Kormos, Peter B. Nagy, Ilona Felhosi, Dan Macarovici, László Trif, Erika Kálmán |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Carbon steel Atomic force microscopy Mechanical Engineering Metallurgy chemistry.chemical_element engineering.material Condensed Matter Physics Electrochemistry Copper law.invention Corrosion chemistry Optical microscope Chemical engineering Mechanics of Materials law Conversion coating engineering General Materials Science Cyclic voltammetry |
| Zdroj: | Materials Science Forum. :247-254 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.537-538.247 |
| Popis: | The ZrO2 coatings were deposited by sol-gel techniques on copper and steel. The film morphology has been investigated by AFM technique. The performance of ZrO2 films as protective layers was investigated by electrochemical techniques and optical microscopy. Firstly, the electrochemical behaviour of the uncoated copper and steel substrates was investigated by cyclic voltammetry in HCl (1 M) and NaOH (0.4 M) solutions having various pH values. Secondly, the anticorrosion protective effect of sol-gel ZrO2 coatings was evaluated by potentiodynamic measurements in degrading media in which substrates were immersed for 1-90 days. The comparisons of electrochemical parameters allow an explanation of the role of the ZrO2 coatings in the increased resistance of steel and copper against corrosion in moderately aggressive environments.. |
| Databáze: | OpenAIRE |
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