Chapter 53. Life Prediction Methodology for Ceramic Engine Components

  1. John B. Wachtman Jr.
  1. Pramod Khandelwal

Published Online: 28 MAR 2008

DOI: 10.1002/9780470314180.ch53

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8

Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8

How to Cite

Khandelwal, P. (2008) Life Prediction Methodology for Ceramic Engine Components, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314180.ch53

Author Information

  1. Allison Gas Turbine Division GMC Indianapolis, IN 46268

Publication History

  1. Published Online: 28 MAR 2008
  2. Published Print: 1 JAN 1993

ISBN Information

Print ISBN: 9780470375266

Online ISBN: 9780470314180

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Keywords:

  • methodology;
  • structural material;
  • oxidation;
  • uniaxial tension;
  • detection

Summary

Life prediction analytical methodology for ceramic gas turbine engine components requires the incorporation of time-temperature-stress-dependent behavior and properties of the structural material. Allison is currently developing such a methodology to address the fast fracture, oxidation, slow crack growth, and creep behavior of PY6 HIPed silicon nitride material. In addition, nondestructive evaluation (NDE) technology is being developed to detect 10-100-m̈m fracture-controlling flaws. In this paper, results of flexural, uniaxial tension, and biaxial behavior of the materials at both room and elevated temperatures will be presented. In addition, NDE flaw detection data will be discussed.