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Title: Dense protective coatings, methods for their preparation and coated articles

A method for depositing a protective coating on a complex shaped substrate includes the steps of: (1) dipping a complex shaped substrate into a slurry to form a base coat thereon, the slurry comprising an aqueous solution, at least one refractory metal oxide, and at least one transient fluid additive present in an amount of about 0.1 percent to 10 percent by weight of the slurry; (2) curing the dipped substrate; (3) dipping the substrate into a precursor solution to form a top barrier coat thereon; and (4) heat treating the dipped, cured substrate to form a protective coating.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1234238
Assignee:
UNITED TECHNOLOGIES CORPORATION NETL
Patent Number(s):
9,221,720
Application Number:
11/366,901
Contract Number:
FC26-00CH11060
Resource Relation:
Patent File Date: 2006 Mar 01
Research Org:
UNITED TECHNOLOGIES CORPORATION, Hartford, CT (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 54 ENVIRONMENTAL SCIENCES

Works referenced in this record:

Performance of YSZ electrolyte layer deposited by atmospheric plasma spraying for cermet-supported tubular SOFC
journal, April 2004

Effect of densification processes on the properties of plasma-sprayed YSZ electrolyte coatings for solid oxide fuel cells
journal, January 2005