Abstract
The article reports on the effect of Al addition on the structure, macrostress σ, mechanical properties and oxidation resistance of TiC-Al thin films. These films were sputtered using dc unbalanced magnetron equipped with a TiC target (purity 99.95%) fixed with an Al (99.99%) fixing ring of various inner diameters Oin. It was found that a continuous increase in Al content in the TiC-Al film results in (i) gradual change of the film structure from the crystalline TiC through X-ray amorphous TiC-Al to the crystalline Al2Ti, (ii) decrease in the compressive macrostress (σ 0), (iii) decrease in film microhardness, H and (iv) increase in its oxidation resistance.
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