Ceramics-to-Metal Joining Technology for Gas Turbine Rotors PUBLIC ACCESS

[+] Author Affiliations
T. Sakamoto, H. Horinouchi, T. Maeda

Kyocera Corporation, Kagoshima, Japan

Paper No. 89-GT-302, pp. V002T04A011; 6 pages
  • ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery
  • Toronto, Ontario, Canada, June 4–8, 1989
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7914-6
  • Copyright © 1989 by ASME


The joining technology of a ceramic wheel and a metal shaft for a ceramic turbocharger rotor was reviewed. The braze-bonded cup-joint method which has established for the ceramic turbocharger rotors was revealed to be effective for the gas turbine applications, in which the temperature of a joining reached to 700°C at turbine inlet temperature of 1371°C.

Slip resistance and bend strength of ceramic shaft was completed by selecting the metal sleeve and braze materials and design with FEM.

The reliability and the durability of the joining was confirmed by cyclic exposure test between 150°C and 700°C for 1000 cycles and 200 hour oxidation test.

Copyright © 1989 by ASME
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