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US 12,428,348 B2Granted
Environmental barrier coating with thermal properties
AssigneeRtx Corporation
InventorsDavid A. Litton, Richard Wesley Jackson, III, Xia Tang, James T. Beals
Life of this patent
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Abstract
An article according to an exemplary embodiment of this disclosure, among other possible things includes a substrate and a barrier layer on the substrate. The barrier layer includes a bond coat comprising a matrix, diffusive particles disposed in the matrix, and gettering particles disposed in the matrix. At least about 10% of the gettering particles are in a crystalline phase. The article also includes a top coat. An article is also disclosed.
Claims20
An article, comprising:
- a substrate;
- and
- a barrier layer on the substrate, the barrier layer including
- a bond coat comprising a matrix, diffusive particles disposed in the matrix, and gettering particles disposed in the matrix, wherein at least about 10% of the gettering particles are in a crystalline phase, and
- a topcoat,
- wherein the bond coat includes a first bond coat layer, a second bond coat layer, and a third bond coat layer, and wherein the first bond coat layer, the second bond coat layer, and the third layer are arranged in an alternating pattern of crystalline gettering particle layers and amorphous gettering particle layers in which substantially all of the gettering particles in each of the first bond coat layer and the third bond coat layer are crystalline or amorphous, and substantially all of the gettering particles in the second bond coat layer are the other of crystalline or amorphous.
3 more elements
An article, comprising:
- a ceramic matrix composite substrate;
- and
- a barrier layer on the substrate, the barrier layer including
- a bond coat comprising a silicon dioxide matrix, diffusive particles disposed in the matrix, and silicon carbide or silicon oxycarbide gettering particles disposed in the matrix, wherein at least about 10% of the gettering particles are in a crystalline phase, and
- a topcoat,
- wherein the bond coat includes a first bond coat layer, a second bond coat layer, and a third bond coat layer, and wherein the first bond coat layer, the second bond coat layer, and the third layer are arranged in an alternating pattern of crystalline gettering particle layers and amorphous gettering particle layers in which substantially all of the gettering particles in each of the first bond coat layer and the third bond coat layer are crystalline or amorphous, and substantially all of the gettering particles in the second bond coat layer are the other of crystalline or amorphous.
3 more elements
Dependencies are inferred from the claim text.