COATING METHOD FOR PRODUCING (Al,Cr)2O3-BASED COATINGS WITH ENHANCED PROPERTIES

摘要

Coating method for coating a substrate with at least one aluminium oxide comprising coating layer, the layer being produced by physical vapour deposition from at least one metallic target comprising aluminium as main component in a coating chamber containing oxygen as reactive gas, characterized in that the target further comprises chromium as second main component and boron or iron as minor component or boron and iron as minor components, or the target further comprises iron as minor component. The target is preferably made by powder metallurgy and the substrate temperature during coating process is not higher than 600 °C.