High-Temperature Properties of SiC-Si3N4 Particle Composites PUBLIC ACCESS

[+] Author Affiliations
Gerhard Woetting, Bernhard Caspers, Ernst Gugel

CFI GmbH&Co.KG, Roedental, Germany

Ralf Westerheide

FhG-IWM, Freiburg, Germany

Paper No. 98-GT-465, pp. V005T13A009; 7 pages
  • ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education
  • Stockholm, Sweden, June 2–5, 1998
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7866-8
  • Copyright © 1998 by ASME


Due to promising results in literature, SiC-Si3N4 particle composites in the range 0–100% SiC were evaluated. Focusing on high-temperature properties, mainly Y2O3 was used as sintering additive. Consolidation occurred primarily by hot-pressing, sintering tests were performed for comparison. Besides short-term properties like strength, toughness etc., long-term properties like creep and oxidation behavior were determined.

Results as a function of SiC-content and microstructure were discussed with respect to materials’ performance at high temperatures and possibilities of their production on a technical scale.

Copyright © 1998 by ASME
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