Silicon oxycarbide environmental barrier coating
US-2016332922-A1 · Nov 17, 2016 · US
Environmental barrier coating for enhanced resistance to attack by molten silicate deposits
US11535571B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11535571-B2 |
| Application number | US-201815998731-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2018 |
| Priority date | Aug 16, 2018 |
| Publication date | Dec 27, 2022 |
| Grant date | Dec 27, 2022 |
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- Title
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Abstract
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An environmental barrier coating, comprising a substrate containing silicon; an environmental barrier layer applied to said substrate; said environmental barrier layer comprising a rare earth composition.
First claim
Opening claim text (preview).
What is claimed is: 1. An environmental barrier coating, comprising: a substrate containing silicon; an environmental barrier layer applied to said substrate; said environmental barrier layer comprising a rare earth composition; wherein said environmental barrier layer comprises an apatite comprising Ca 5 F (PO 4 ) 3 . 2. The environmental barrier coating of claim 1 , wherein said substrate comprises a ceramic matrix composite material. 3. The environmental barrier coating of claim 1 , wherein said Ca can be substituted with Mg, Fe, Na, Sr, and Mn. 4. The environmental barrier coating of claim 1 , wherein said substrate comprises at least one of a turbine vane and a turbine blade. 5. The environmental barrier coating of claim 1 , further comprising: a protective layer applied on said environmental barrier coating.
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Classifications
- C04B41/87Primary
Ceramics · CPC title
Multiple coating or impregnating {multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation} · CPC title
for obtaining at least two superposed coatings having different compositions · CPC title
Silicates (C04B41/5022 takes precedence; silico-fluorides C04B41/5018) · CPC title
characterised by the material treated · CPC title
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Frequently asked questions
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- What does patent US11535571B2 cover?
- An environmental barrier coating, comprising a substrate containing silicon; an environmental barrier layer applied to said substrate; said environmental barrier layer comprising a rare earth composition.
- Who is the assignee on this patent?
- United Tech Corportion, Raytheon Tech Corp
- What technology area does this patent fall under?
- Primary CPC classification C04B41/87. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 27 2022 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).