Abstract: With the method for manufacturing a thermally sprayed layer (2) on a substrate (1), in particular a ceramic coating is applied to a metallic body. The sprayed layer is applied to a structured surface (3, 10) of the substrate. The surface structure (3) of the substrate is produced by material removal by means of a high pressure liquid jet (4). A removal point (40) is thereby controlledly moved on the substrate while producing a macro-topography, namely by moving the liquid jet and/or the substrate. A groove-like removal track (41) is produced by the material removal which can be in a straight line or curved and which has a micro-topography. A macro-profile (3′) of the macro-topography is manufactured by placing a plurality of removal tracks next to one another and by partial overlapping of these removal tracks.

Abstract: The method for the manufacture of a functional ceramic layer (10) comprises the following two steps: