C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 41/87 (2006.01) C23C 20/08 (2006.01)
Patent
CA 2669518
A coating composition and repair method suitable for repairing thermal barrier coatings (TBCs), and particularly TBCs based on alumina-silica compositions. The method includes preparing a coating composition containing solid ceramic particles, hollow ceramic particles, and a silica precursor binder, applying the coating composition on a surface area of a component exposed by an opening, for example, spallation of the TBC, and then reacting the binder to yield a repair coating that covers the surface area of the component. The resulting repair coating contains the solid ceramic particles and the hollow ceramic particles in a silica matrix formed by thermally decomposing the binder.
Murphy Jane Ann
Skoog Andrew Jay
Company General Electric
Craig Wilson And Company
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