Patent · US Active

Method for applying a coating to a surface of a mullite material, mullite material having a coating, and gas turbine component

US11964921B2 · kind B2 · utility

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18Claims

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Assignee

Oerlikon Surface Solutions AG, Pfäffikon · CH

Inventors

Werner Stamm · Mülheim an der Ruhr, DE
Simone Friedle · Wuppertal, DE
Juergen Ramm · Sevelen, CH

Key dates

Filing date	May 19, 2020
Grant date	Apr 23, 2024
Priority date	—
Expiry date	Jun 4, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2300/2112
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for applying a coating 1 to a surface 2 of a mullite material 3 is specified, which comprises pretreating the surface 2 of the mullite material 3 by means of a plasma-chemical process in which molecular hydrogen is excited in such a way that plasma-activated hydrogen is produced S1, and applying an aluminum oxide-containing layer 4 by means of a PVD process to the pretreated surface 2 of the mullite material 3 S2. Furthermore, a mullite material 3 with a coating and a gas turbine component with such a mullite material 3 are specified.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.