Ceramic thermal insulation coating on structured surface and production method

The layer system comprises a substrate (4), and a ceramic layer (16) that is applied on a structured surface. The structured surface is formed by elongated recesses that form a honeycomb structure, and a stitch structure in quadratic or rectangular shape and have a breadth of 10-30 mu m and a depth...

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Bibliographische Detailangaben
Hauptverfasser:	TETERUK, ROSTISLAV, BECKMANN, BJOERN, BUCHHOLZ, BJOERN, HILLE, THOMAS, SCHUMANN, ECKART, AMANN, CHRISTIAN, GAIO, GIUSEPPE, AHMAD, FATHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION WEAPONS
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Beschreibung
Zusammenfassung:	The layer system comprises a substrate (4), and a ceramic layer (16) that is applied on a structured surface. The structured surface is formed by elongated recesses that form a honeycomb structure, and a stitch structure in quadratic or rectangular shape and have a breadth of 10-30 mu m and a depth of 10-30%. The ceramic layer has a thickness of 10-30 mu m. A distance of the opposite recesses is 100-300 mu m. The layer system further comprises an interfacial layer (10) such as a metallic layer made of chromium-aluminum (MCrAlX) alloy, where the interfacial layer is introduced into the recesses. An independent claim is included for a method for preparing a layer system. Durch die Einbringung von Vertiefungen (19', 19'', ...) in eine Oberfläche (7, 13) werden die Spannungen in der keramischen Schicht (16) an den metallischen Untergrund reduziert, so dass eine längere Lebensdauer für die keramische Schicht erzielt wird.