Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D

CCHEMISTRY METALLURGY C23Surface treatment C23CCOATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL

C23C28/00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D

C23C28/02only coatings only including layers of metallic material C23C28/021including at least one metal alloy layer C23C28/022with at least one MCrAlX layer C23C28/023only coatings of metal elements only C23C28/025with at least one zinc-based layer C23C28/026including at least one amorphous metallic material layer C23C28/027including at least one metal matrix material comprising a mixture of at least two metals or metal phases or metal matrix composites C23C28/028Including graded layers in composition or in physical properties C23C28/04only coatings of inorganic non-metallic material C23C28/042including a refractory ceramic layer C23C28/044coatings specially adapted for cutting tools or wear applications C23C28/046with at least one amorphous inorganic material layer C23C28/048with layers graded in composition or physical properties C23C28/30Coatings combining at least one metallic layer and at least one inorganic non-metallic layer C23C28/32including at least one pure metallic layer C23C28/321with at least one metal alloy layer C23C28/3215at least one MCrAlX layer C23C28/322only coatings of metal elements only C23C28/3225with at least one zinc-based layer C23C28/323with at least one amorphous metallic material layer C23C28/324with at least one metal matrix material layer comprising a mixture of at least two metals or metal phases or a metal-matrix material with hard embedded particles C23C28/325with layers graded in composition or in physical properties C23C28/34including at least one inorganic non-metallic material layer C23C28/341with at least one carbide layer C23C28/343with at least one DLC or an amorphous carbon based layer, the layer being doped or not C23C28/345with at least one oxide layer C23C28/3455with a refractory ceramic layer C23C28/347with layers adapted for cutting tools or wear applications C23C28/36including layers graded in composition or physical properties C23C28/40Coatings including alternating layers following a pattern, a periodic or defined repetition C23C28/42characterized by the composition of the alternating layers C23C28/44characterized by a measurable physical property of the alternating layer or system