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US 11,697,622 B2Granted
Barrier coating with calcium aluminosilicate additive
AssigneeRaytheon Technologies Corporation
InventorsRichard Wesley Jackson, Xia Tang, Paul Sheedy
Life of this patent
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Abstract
A gas turbine engine article includes a substrate and a silicate-resistant barrier coating disposed on the substrate. The silicate-resistant barrier coating is composed of a refractory matrix and a calcium aluminosilicate additive (CAS additive) dispersed in the refractory matrix.
Claims13
A gas turbine engine article comprising:
- a substrate;
- and
- a silicate-resistant barrier coating disposed on the substrate, the silicate-resistant barrier coating being composed of a refractory matrix and a calcium aluminosilicate additive (CAS additive) dispersed in the refractory matrix, the refractory matrix being selected from hafnia, hafnium silicate, zirconium silicate, or combinations thereof, and the silicate resistant barrier coating including, by mol. %, 0.1 to 30 of the CAS additive and a remainder being the refractory matrix.
Dependencies are inferred from the claim text.