Composite ceramic comprising a corrosion protection layer and production method
AssigneeMTU Aero Engines AG
InventorsStefan Schneiderbanger, Nicole Jakimov, Heinrich Walter
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Abstract
The present invention relates to a component of a turbomachine made of a composite material comprising a ceramic matrix and a corrosion protection layer arranged on the composite material. The corrosion protection layer comprises: 50-80 wt % silicon, 12-30 wt % nitrogen, 2-8 wt % oxygen, 2-8 wt % aluminum, and 0-3 wt % of at least one alkaline earth metal. The invention furthermore relates to a method for producing a corresponding component of a turbomachine.
Claims20
A component of a composite material, wherein the component of the composite material comprises a ceramic matrix and a corrosion protection layer arranged thereon, the corrosion protection layer comprising:
- from 50 to 80 wt % silicon,
- from 12 to 30 wt % nitrogen,
- from 2 to 8 wt % oxygen,
- from 2 to 8 wt % aluminum, and
- from 0 to 3 wt % of at least one alkaline earth metal.
A method for producing a component of a turbomachine, wherein the method comprises depositing a corrosion protection layer on a semifinished product of a composite material comprising a ceramic matrix, the corrosion protection layer comprising
- from 50 to 80 wt % silicon,
- from 12 to 30 wt % nitrogen,
- from 2 to 8 wt % oxygen,
- from 2 to 8 wt % aluminum, and
- from 0 to 3 wt % of at least one alkaline earth metal.
Dependencies are inferred from the claim text.