Invention Application
- Patent Title: MULTI-LAYERED COATING WITH COLUMNAR MICROSTRUCTURE AND BRANCHED COLUMNAR MICROSTRUCTURE
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Application No.: US14880846Application Date: 2015-10-12
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Publication No.: US20170101874A1Publication Date: 2017-04-13
- Inventor: James W. Neal , Michael J. Maloney , Kevin W. Schlichting , Brian T. Hazel , David A. Litton , Eric Jorzik
- Applicant: United Technologies Corporation
- Main IPC: F01D5/28
- IPC: F01D5/28 ; C04B35/622 ; F02C3/04 ; C04B35/48 ; B32B9/00 ; F01D25/00

Abstract:
An article includes a substrate and a multi-layered ceramic barrier coating on a substrate. The coating includes, from the substrate outward, a first layer of a low-dopant ceramic material and a second layer high-dopant ceramic material. The first layer has a columnar microstructure and the second layer has a branched columnar microstructure.
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