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Corrosion-resistant ceramic thermal barrier coatingTwo-layer thermal barrier coating, consisting of metal-CrA1Y bond coating and calcium silicate ceramic outer layer, greatly improves resistance of turbine parts to hot corrosion from fuel and air impurities. Both layers can be plasma sprayed, and ceramic layer may be polished to reduce frictional losses. Ceramic provides thermal barrier, so parts operate cooler metal temperatures, coolant flow can be reduced, or gas temperatures increased. Lower grade fuels also can be used.
Document ID
19800000067
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Hodge, P. E.
Levine, S. R.
Miller, R. A.
Date Acquired
August 10, 2013
Publication Date
August 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 5
Issue: 1
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
LEW-13088
Accession Number
80B10067
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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