NASA NTRS · 19800000067
Corrosion-resistant ceramic thermal barrier coating
Abstract
Two-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.
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Hodge, P. E., Levine, S. R., Miller, R. A.. 1980-08-01. Corrosion-resistant ceramic thermal barrier coating. https://ntrs.nasa.gov/citations/19800000067
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