Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1470903 | Corrosion Science | 2005 | 8 Pages |
Abstract
Hybrid sol–gel coatings provide an approach as protective layers on metals. In this work, corrosion protection of aluminium and magnesium alloys by SiO2-methacrylate coatings doped with TiO2–CeO2 nanoparticles was studied. The films show an improvement of the barrier properties at initial immersion. The reactivity of both alloys produces a deterioration of the protection with longer immersion, although TiO2–CeO2 nanoparticles let to observe signals of self-healing effect. Aluminium oxide/sol–gel interface was found to be stable. In combination with excellent paint adhesion on sol–gel films, these coatings can be a promising alternative pre-treatment for high strength aluminium alloys prior to painting.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
M. Zaharescu, L. Predoana, A. Barau, D. Raps, F. Gammel, N.C. Rosero-Navarro, Y. Castro, A. Durán, M. Aparicio,