Ceramic thermal barrier coating with alumina interlayer

Details Ceramic thermal barrier coating with alumina interlayer Ceramic thermal barrier coating with alumina interlayer

1989-11-08

1991-05-14

Silverman, Stanley

Coating processes

Coating by vapor, gas, or smoke

427 42, 427250, 427328, 427331, 427405, 4274191, 4274192, C23C 1600

Patent

active

050155024

ABSTRACT:
A ceramic thermal barrier coating system for superalloy components subjected to high operating temperatures, such as gas turbine engine airfoils, includes a high purity alumina interfacial layer between the metallic substrate and the ceramic overcoat in order to better resist failure by spalling.

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