Patent ID: 9702036
Date: 2017-07-11
CPC Classifications: B29C,B29K,C23C,Y10T

Claim:
1. A vacuum coating method for producing a mixed-crystal layer of a multi-oxide on a workpiece, comprising the steps of: depositing a coating on the workpiece with a first arc- or sputtering-source electrode, constituting an alloy target, and a second electrode in an oxygenous process-gas atmosphere; and simultaneously feeding said source electrode with a direct current or direct voltage as well as a pulsed or alternating current or a pulsed or alternating-current voltage, characterized in that composition of the alloy target essentially corresponds to that of the mixed-crystal layer and that the latter is deposited with a corundum structure by arc evaporating the alloy target, wherein said mixed-crystal layer of said multi-oxide comprises areas of at least one element of said alloy target.