TY - GEN A1 - Zhang, Ping A1 - Flores Renteria, Arturo A1 - Wild, E. A1 - Reimers, W. A1 - Leyens, Christoph T1 - Oxidation-resistant Ti-90Al coatings with lotus effect surfacemorphology deposited on a gamma-TiAl alloy T2 - Scripta Materialia N2 - Ti-90Al (in at.%) coatings were deposited on Ti-45Al-8Nb alloy at two different temperatures, 300 and 540 °C. The coatingsputtered at 300 °C consisted of Al and TiAl3 with columnar grain structure. The morphology, chemical composition and microstructureof the coating sputtered at540 °Cwere strongly dependent on the substrate microstructure. The two coating variantsformed oxidation-resistant Al2O3 scales during oxidation. The special morphological features of the coatings make them interestingfor geometrically structuring the surfaces to provoke the lotus effect. KW - Ti-Al coating KW - Sputtering KW - gamma-TiAl alloy KW - Oxidation-resistant coating KW - Lotus effect Y1 - 2009 SN - 1359-6462 VL - 61 IS - 12 SP - 1156 EP - 1159 ER -