A compression bonding method has been developed to join ceramic components to superalloys in turbine engines, e.g., blades-to-disk, vane-to-shaft and hub-to-shaft. The method involves isothermal forging (GATORIZING®) the metal around the ceramic using a compliant internal layer. The attachment of a Si3N4 blade/superalloy disk (hybrid rotor) was characterized based upon the chemical and mechanical compatibility of their interface. The life of the joint was predicted. Finally, the integrity of the hybrid rotor joint was evaluated by spin testing the rotors at 45,000 rpm at a blade temperature of 1505°K (2250°F) for 88 hours.
Ceramic-Metal Joining for Turbine Applications
Sae Technical Papers
SAE International Congress and Exposition ; 1981
1981-02-01
Conference paper
English
Metal ceramic joining for high temperature applications
Automotive engineering | 1991
|Surface improvement for advanced ceramic/metal joining
Automotive engineering | 1989
|Surface improvement for Advanced Ceramic/Metal Joining
SAE Technical Papers | 1989
|Joining of Si3N4 turbine rotor and metal shaft
Automotive engineering | 1994
|Joining of Si3 N4 Turbine Rotor and Metal Shaft
SAE Technical Papers | 1994
|