Article ID Journal Published Year Pages File Type
7896405 Corrosion Science 2013 11 Pages PDF
Abstract
As an alternative to chromate based coatings cerium oxide thin films were deposited by magnetron sputtering on Al clad 2024 alloy in order to evaluate their corrosion protection potential. Varying plasma properties by modifying O2 content during deposition allowed to affect the chemistry and microstructure of the synthesized films. The electrochemical characterization showed that specific self-healing mechanisms are suspected for the samples deposited with the highest amount of oxygen. Those mechanisms, leading to the reinforcement of barrier properties versus immersion time in NaCl solution, are associated with the interaction between alumina and cerium oxide film in the presence of electrolyte.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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