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US 2020/0048153 A1Published application
Ceramic heat shields having surface infiltration for preventing corrosion and erosion attacks protecting a component, method for laser drilling, and component
AssigneeSiemens Aktiengesellshaft
InventorsMarco Reinger, Werner Stamm
Life of this patent
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Abstract
An improved ceramic heat shield for a gas turbine is provided. The ceramic heat shield has a porous ceramic body and according to the embodiments an infiltration coating that is provided in a surface layer of the porous ceramic body and contains an infiltration coating material designed to gas-tightly seal pores of the ceramic body.
Claims15
A ceramic heat shield for a gas turbine, comprising:
- a porous ceramic body,
- including
- an infiltration coating which is infiltrated in a surface layer of the porous ceramic body and contains an infiltration coating material which is configured for closing pores of the ceramic body in a manner as gas-tight as possible.
A method for producing a ceramic heat shield for a gas turbine, comprising the following method steps:
- providing a porous ceramic body;
- generating an infiltration coating in a surface layer of the porous ceramic body, wherein the infiltration coating contains an infiltration coating material which is configured for closing pores of the porous ceramic body in a gas-tight manner.
Dependencies are inferred from the claim text.