Diffusion barrier layers for ceramic matrix composites
US-2016273088-A1 · Sep 22, 2016 · US
Coating for a nickel-base superalloy
US10844492B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10844492-B2 |
| Application number | US-201815981942-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 17, 2018 |
| Priority date | May 18, 2017 |
| Publication date | Nov 24, 2020 |
| Grant date | Nov 24, 2020 |
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- Title
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Abstract
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An arrangement comprising a component ( 203 ) adjacent to a ceramic matrix composite in a gas turbine engine is shown. The component comprises a nickel-base superalloy substrate ( 301 ) and a cobalt-modified beta-nickel-aluminide coating ( 302 ) on the substrate to prevent interdiffusion between the substrate and the ceramic matrix composite. The substrate is coated by depositing a cobalt layer on the substrate, depositing an aluminium layer on the cobalt layer and then forming a cobalt-modified beta nickel aluminide coating.
First claim
Opening claim text (preview).
The invention claimed is: 1. An arrangement comprising a SiC/SiC matrix composite; a component positioned adjacent to the SiC/SiC matrix composite, the component comprising a nickel-base superalloy substrate; and a cobalt-modified beta-nickel-aluminide coating on the substrate to prevent interdiffusion between the substrate and the SiC/SiC matrix composite. 2. A gas turbine engine comprising the arrangement of claim 1 . 3. The gas turbine engine of claim 2 , in which the ceramic matrix composite is a seal segment for a turbine stage of the engine, and the component is a carrier for the seal segment. 4. A gas turbine engine comprising an arrangement comprising: a ceramic matrix composite; a component positioned adjacent to the ceramic matrix composite, the component comprising a nickel-base superalloy substrate; a cobalt-modified beta-nickel-aluminide coating on the substrate to prevent interdiffusion between the substrate and the ceramic matrix composite, wherein the ceramic matrix composite is a seal segment for a turbine stage of the engine, and the component is a carrier for the seal segment. 5. An arrangement comprising: a ceramic matrix composite comprising a matrix phase and a fiber phase; a component positioned adjacent to the ceramic matrix composite, the component comprising a nickel-base superalloy substrate; and a cobalt-modified beta-nickel-aluminide coating on the substrate to prevent interdiffusion between the substrate and the ceramic matrix composite. 6. A gas turbine engine comprising the arrangement of claim 5 . 7. The gas turbine engine of claim 6 , wherein the ceramic matrix composite is a seal segment for a turbine stage of the engine, and the component is a carrier for the seal segment.
Assignees
Inventors
Classifications
- C25D7/008Primary
Thermal barrier coatings · CPC title
for etching iron group metals · CPC title
Preventing corrosion · CPC title
of silicon · CPC title
Aluminium · CPC title
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- What does patent US10844492B2 cover?
- An arrangement comprising a component ( 203 ) adjacent to a ceramic matrix composite in a gas turbine engine is shown. The component comprises a nickel-base superalloy substrate ( 301 ) and a cobalt-modified beta-nickel-aluminide coating ( 302 ) on the substrate to prevent interdiffusion between the substrate and the ceramic matrix composite. The substrate is coated by depositing a cobalt layer…
- Who is the assignee on this patent?
- Rolls Royce Plc
- What technology area does this patent fall under?
- Primary CPC classification C25D7/008. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 24 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).