Chapter 16. The High Temperature Fracture Toughness of SiAlON

  1. William Smothers
  1. Minyoung Lee1,
  2. Milivoj K. Brun1 and
  3. Tseng-Ying Tien2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470320167.ch16

Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10

Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10

How to Cite

Lee, M., Brun, M. K. and Tien, T.-Y. (1983) The High Temperature Fracture Toughness of SiAlON, in Proceedings of the 7th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 4, Issue 9/10 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320167.ch16

Author Information

  1. 1

    General Electric Corporate Research & Development Schenectady, NY 12301

  2. 2

    Department of Materials and Metallurgical Engineering University of Michigan, Ann Arbor, MI 48109

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1983

ISBN Information

Print ISBN: 9780470374047

Online ISBN: 9780470320167

SEARCH

Keywords:

  • indentation;
  • evaluated;
  • toughness;
  • superalloys;
  • significantly

Summary

Several experimental SiAlON samples and an alumina-30-wt%-TlC cermet tool were investigated for fracture toughness and Vickers hardness as a function of temperature up to 1000°C using the indentation method. All SiAlON samples examined showed similar fracture toughness. However, all samples also showed a small but definite decrease in fracture toughness with increasing temperatures over the range evaluated. The cermet sample also had good toughness at room temperature but a significant decrease in toughness with increasing temperature.