| abstract |
Coated bodies of metal, hard metal, cermet or ceramic, coated with a single- or multi-layer system containing at least one Al-based hard material layer, characterized in that the Al-based hard material layer at least of alumina and / or Al 2-x Cr x O 3 with x = 0.0001 to 1 and one or more metal carbides of the elements Cr, Zr, V, Nb and may contain further metal oxides of the elements Zr, V, Nb. |