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Method for repairing a ceramic fiber reinforced ceramic composite article and corresponding intermediate
Methods for repairing a turbine airfoil (24) constructed from a CMC material are provided via filling a cavity (26) located in the turbine airfoil (24) with a ceramic paste (50) (e.g., including a ceramic powder and a binder), heating the ceramic paste (50) in the cavity (26) to remove the binder, thereby forming a porous ceramic material, and adding a molten ceramic material to the porous ceramic material. The cavity (26) can be defined in an airfoil (30) of the turbine airfoil (24) (e.g., on a tip or cap (36) of the airfoil (30)). Intermediates formed during the repair of a turbine airfoil (24) are also provided. The intermediate can generally include an airfoil (30) comprising a CMC material, a cavity (26) defmed in the airfoil (30), and a porous ceramic material (52) filling the cavity (26).
Method for repairing a ceramic fiber reinforced ceramic composite article and corresponding intermediate
Methods for repairing a turbine airfoil (24) constructed from a CMC material are provided via filling a cavity (26) located in the turbine airfoil (24) with a ceramic paste (50) (e.g., including a ceramic powder and a binder), heating the ceramic paste (50) in the cavity (26) to remove the binder, thereby forming a porous ceramic material, and adding a molten ceramic material to the porous ceramic material. The cavity (26) can be defined in an airfoil (30) of the turbine airfoil (24) (e.g., on a tip or cap (36) of the airfoil (30)). Intermediates formed during the repair of a turbine airfoil (24) are also provided. The intermediate can generally include an airfoil (30) comprising a CMC material, a cavity (26) defmed in the airfoil (30), and a porous ceramic material (52) filling the cavity (26).
Method for repairing a ceramic fiber reinforced ceramic composite article and corresponding intermediate
Reparaturverfahren eines Artikels aus keramikfaserverstärktem Keramikverbundwerkstoff und zugehöriges Zwischenerzeugnis
Procédé de réparation d'un article en composite céramique renforcé par fibres céramiques, et produit intermédiaire associé
ROBERTS HERBERT CHIDSEY III (author) / MONAGHAN PHILIP HAROLD (author) / GRAY PAUL EDWARD (author) / BOY JEFFREY H (author) / HALADA JOSEPH (author) / MATSUMOTO ROGER LEE KEN (author)
2015-11-11
Patent
Electronic Resource
English
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