Article ID Journal Published Year Pages File Type
1500950 Scripta Materialia 2009 4 Pages PDF
Abstract

Ti–90Al (in at.%) coatings were deposited on Ti–45Al–8Nb alloy at two different temperatures, 300 and 540 °C. The coating sputtered at 300 °C consisted of Al and TiAl3 with columnar grain structure. The morphology, chemical composition and microstructure of the coating sputtered at 540 °C were strongly dependent on the substrate microstructure. The two coating variants formed oxidation-resistant Al2O3 scales during oxidation. The special morphological features of the coatings make them interesting for geometrically structuring the surfaces to provoke the lotus effect.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
Authors
, , , , ,