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Covering solid, film cooled surfaces with a duplex thermal barrier coatingThermal barrier coating systems were applied to hardware having passageways in the walls connecting apertures in the surface to a gas supply for film cooling. An inert gas, such as argon, is discharged through the apertures during the application of the thermal barrier coating system by plasma spraying. This flow of inert gas reduces both blocking of the holes and base metal oxidation during the coating operation.
Document ID
19830026906
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Liebert, C. H. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
September 6, 1983
Subject Category
Engineering (General)
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-328760
Patent Number: NASA-CASE-LEW-13450-1
Patent Number: US-PATENT-4,402,992
Accession Number
83N35177
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LEW-13450-1|US-PATENT-4,402,992
Patent Application
US-PATENT-APPL-SN-328760

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