Chapter 11. Mechanisms of Thermal Shock Damage in Fiber-Reinforced Ceramic Matrix Composites

  1. John B. Wachtman Jr.
  1. Raj N. Singh and
  2. Hongyu Wang

Published Online: 26 MAR 2008

DOI: 10.1002/9780470314784.ch11

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5

Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5

How to Cite

Singh, R. N. and Wang, H. (1995) Mechanisms of Thermal Shock Damage in Fiber-Reinforced Ceramic Matrix Composites, in Proceedings of the 19th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 16, Issue 5 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314784.ch11

Author Information

  1. Department of Materials Science and Engineering University of Cincinnati, Cincinnati, OH 45221-0012

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1995

ISBN Information

Print ISBN: 9780470375389

Online ISBN: 9780470314784

SEARCH

Keywords:

  • evaluating;
  • refractories;
  • insulated;
  • utilizing;
  • immersion test method

Summary

The thermal shock behavior of a two-dimensional Nicalon™ fiber reinforced SiC matrix fabricated by chemical vapor infiltration (CVI) technique was studied using the water quench method. Damage to composites was assessed by a destructive technique of measuring mechanical properties using 4-point flexure and by a nondestructive technique of measuring Young's modulus using the dynamic resonance method. Composites displayed an excellent resistance to thermal shock in comparison with monolithic ceramics, and retained 89% of the original strength after quenching from 1000°C. Degradations in mechanical properties of composites because of the thermal shock were related to changes in constituent properties and associated degradation mechanisms.