Method of forming a thermal barrier coating system with engineered surface roughness
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United States of America Patent
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Aug 29, 2023
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N/A
app pub date -
Oct 4, 2021
filing date -
Aug 30, 2011
priority date (Note) -
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Abstract
A method of manufacturing a substrate (16) with a ceramic thermal barrier coating (28, 32). The interface between layers of the coating contains an engineered surface roughness (12, 24) to enhance the mechanical integrity of the bond there between. The surface roughness is formed in a surface of a mold (10,20) and is infused by a subsequently cast layer of material (16, 28). The substrate may be partially sintered (76) prior to application of the coating layer(s) and the coated substrate and coating layer(s) may be co-sintered to form a fully coherent strain-free interlayer.
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