The Corrosion Study of ZrO2 Coatings on Metals

Ioana Rotariu; Graziella L. Turdean; Fiammetta Kormos; Dan Macarovici; Gyula Tolnai; Ilona Felhősi; Péter M. Nagy; László Trif; Erika Kálmán

doi:10.4028/www.scientific.net/MSF.537-538.247

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Pulse Plated Amorphous Fe-P Thin Layers for High Frequency Magnetic Applications
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Formation and Structure of Alkyl-Phosphonic Acid Layers on Passive Iron
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The Corrosion Study of ZrO₂ Coatings on Metals
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Surface Modification of Polyethylene by Nitrogen PIII: Surface Chemical and Nanomechanical Properties
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Supercapacitor Electrodes Made from Mixture of Amorphous Carbon Nano-Particles and Carbon Black
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Fluid Mechanical Model for Formation of Mineral Wool Fibers Applied in Polymer Composites
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Raman Analysis of Diamond-Like Carbon Films Deposited onto Corrosion Resistant Alloys Used for Coronary Stent Fabrication
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HomeMaterials Science ForumMaterials Science Forum Vols. 537-538The Corrosion Study of ZrO2 Coatings on Metals

The Corrosion Study of ZrO₂ Coatings on Metals

Abstract:

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..