C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 24/08 (2006.01) C23C 28/04 (2006.01)
Patent
CA 2715958
Coating systems and processes by which a ceramic coating (14) is entirely formed from a colloidal-based process to have a thickness that would ordinarily prone to cracks and spallation. The process involves forming a precursor primer layer on a surface region (12,16,18), and then forming at least a precursor coating layer on the precursor primer layer that is thicker than the precursor primer layer. The precursor primer layer contains particles and a precursor of a first ceramic material. The precursor coating layer contains particles and a precursor of a second ceramic material having the same predominant constituent as the first ceramic material. The precursor primer layer and precursor coating layer are then heated to form a ceramic film (20) and a ceramic coating layer (14), respectively, which consist essentially of the particles and matrices of, respectively, the first and second ceramic materials.
Manoharan Mohan
Mcevoy Kevin Paul
Ruud James Anthony
Szala Lawrence Edward
Willson Patrick Daniel
Company General Electric
Craig Wilson And Company
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