Ceramic matrix composite turbine vane

Details Ceramic matrix composite turbine vane Ceramic matrix composite turbine vane

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 5/30 (2006.01) F01D 5/14 (2006.01) F01D 5/28 (2006.01)

Patent

CA 2430050

A ceramic matrix composite material (CMC) vane for a gas turbine engine wherein the airfoil member (12) and the platform member (14) are formed separately and are then bonded together to form an integral vane component (10). Airfoil member and the platform member may be bonded together by an adhesive (20) after being fully cured. Alternatively, respective joint surfaces (16,18) of the green body state airfoil member and platform member may be co-fired together to form a sinter bond (30). A mechanical fastener (38) and/or a CMC doubter (42) may be utilized to reinforce the bonded joint (40). A matrix infiltration process (50) may be used to create or to further strengthen the bond.

L'invention a trait à une aube de turbine en composite à matrice céramique (CMC) pour un turbomoteur à gaz dans lequel la surface portante (12) et l'élément de plate-forme (14) sont formés séparément, puis liés ensemble pour former un élément d'aube intégral (10). La surface portante et l'élément de plate-forme peuvent être liés à l'aide d'un adhésif (20) après avoir été pleinement durcis. Une autre méthode consiste à cocuire simultanément les surfaces respectives de la surface portante et de l'élément de plate-forme à l'état d'ébauche crue de façon à former un joint fritté (30). Une attache mécanique (38) et/ou un matériau de renfort peuvent être utilisés pour solidifier le joint collé (40). Un procédé d'infiltration de matrice (50) peut être utilisé pour créer ou renforcer davantage le joint.

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