	US 12,392,248 B2
	Thermal barrier coating compositions, methods of manufacture thereof and articles comprising the same
Susanne M. Opalka, Old Chatham, NY (US); and Weina Li, South Glastonbury, CT (US)
Assigned to RTX CORPORATION, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Apr. 5, 2021, as Appl. No. 17/222,366.
Application 17/222,366 is a division of application No. 15/449,673, filed on Mar. 3, 2017, granted, now 10,968,756.
Prior Publication US 2023/0141706 A1, May 11, 2023
Int. Cl. B32B 15/04 (2006.01); B05D 1/00 (2006.01); B05D 1/04 (2006.01); B05D 1/36 (2006.01); B32B 17/06 (2006.01); C01F 7/02 (2022.01); C09D 1/00 (2006.01); C09D 5/18 (2006.01); C09D 201/00 (2006.01); C23C 4/02 (2006.01); C23C 4/10 (2016.01); C23C 4/11 (2016.01); C23C 4/18 (2006.01); C23C 28/00 (2006.01); F01D 5/28 (2006.01); F01D 9/04 (2006.01); F01D 11/08 (2006.01); F01D 25/00 (2006.01); F02C 7/24 (2006.01); B05B 5/00 (2006.01); B05B 7/20 (2006.01); B05B 7/22 (2006.01)

CPC F01D 5/288 (2013.01) [B05D 1/005 (2013.01); B05D 1/04 (2013.01); B05D 1/36 (2013.01); C01F 7/02 (2013.01); C09D 1/00 (2013.01); C09D 5/18 (2013.01); C09D 201/00 (2013.01); C23C 4/02 (2013.01); C23C 4/10 (2013.01); C23C 4/11 (2016.01); C23C 4/18 (2013.01); C23C 28/3215 (2013.01); C23C 28/345 (2013.01); C23C 28/3455 (2013.01); C23C 28/347 (2013.01); F01D 9/041 (2013.01); F01D 11/08 (2013.01); F01D 25/005 (2013.01); F02C 7/24 (2013.01); B05B 5/00 (2013.01); B05B 7/20 (2013.01); B05B 7/22 (2013.01); F05D 2220/32 (2013.01); F05D 2230/90 (2013.01); F05D 2260/231 (2013.01); F05D 2300/611 (2013.01)]

17 Claims

1. A gas turbine engine component, comprising:

a superalloy substrate;

a bond coat on the substrate;

a thermal barrier material on the bond coat; and

a coating containing polynuclear aluminum oxide/hydroxide clusters on the thermal barrier material; wherein the polynuclear aluminum oxide/hydroxide clusters are Al₁₃Keggin clusters having the formula [AlO₄Al₁₂(OH)₂₄(H₂O)₁₂]⁷⁺, or are salts of the Al₁₃Keggin clusters called Al₁₃Keggin complexes.