Chapter 19. Evaluation of Air-Cooled Si3N4 Vanes

  1. William J. Smothers
  1. M. I. Mendelson,
  2. R. R. Gailfoil and
  3. D. W. Zabierek

Published Online: 26 MAR 2008

DOI: 10.1002/9780470318782.ch19

Proceedings of the 6th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 3, Issue 9/10

Proceedings of the 6th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 3, Issue 9/10

How to Cite

Mendelson, M. I., Gailfoil, R. R. and Zabierek, D. W. (1982) Evaluation of Air-Cooled Si3N4 Vanes, in Proceedings of the 6th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 3, Issue 9/10 (ed W. J. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470318782.ch19

Author Information

  1. Government Products Div., Pratt & Whitney Aircraft West Palm Beach, FL 33402

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1982

ISBN Information

Print ISBN: 9780470373972

Online ISBN: 9780470318782

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Keywords:

  • recirculation;
  • porcelain-enamel powder;
  • coating;
  • porcelain-ename;
  • oversprayed

Summary

Air-cooled vanes of reaction-sintered Si3N4 were designed for a maximum temperature of 1780K (2750°F), a maximum stress of 138 000 kPa (20 000 psi), easy fabrication, and good reliability to survive a vane-inlet temperature of 1920K (3000°F). Simplified hollow-core vanes both with and without trailing-edge holes were fabricated and rig tested. The feasibility has been demonstrated for cooled vanes to survive at 1920K under steady-state and cyclic conditions.