Ceramic matrix composite turbine vane

US6648597B1 · kind B1 · utility

Assignee

• Siemens Westinghouse Power Corporation · US

Inventors

• Scott M. Widrig · Hobe Sound, US
• Jay A. Morrison · Oviedo, US
• Harry A. Albrecht · Hobe Sound, US
• Yevgeniy Shteyman · West Palm Beach, US
• Steven C. Butner · San Marcos, US

Key dates

• Filing date: May 31, 2002
• Grant date: Nov 18, 2003
• Expiry date: May 31, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2300/6033
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

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 doubler (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.