Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498861 | Scripta Materialia | 2013 | 4 Pages |
Abstract
Nanostructured cerium-based coatings on AZ31 Mg alloy substrates exposed to sunlight under ambient conditions had an ∼30% increase in Ce(III) species compared to unexposed coatings as measured by X-ray photoelectron spectroscopy. A decrease in film cracks and shift in bandgap from 2.5 eV to 2.7 eV were also measured. Visible changes in color, from yellow to translucent, with exposure were also observed and suggest that cerium-based coatings are reduced by light exposure in humid environments.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Carlos E. Castano, Matthew J. O’Keefe, William G. Fahrenholtz,