Chapter 81. The Monotonic and Fatigue Behavior of a Nicalon™/Alumina Composite at Ambient and Elevated Temperatures
- J. P. Singh
Published Online: 26 MAR 2008
DOI: 10.1002/9780470294437.ch81
Copyright © 1997 The American Ceramic Society
Book Title
Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3
Additional Information
How to Cite
Miriyala, N., Liaw, P. K., Mchargue, C. J., Snead, L. L. and Morrison, J. A. (2008) The Monotonic and Fatigue Behavior of a Nicalon™/Alumina Composite at Ambient and Elevated Temperatures, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 18, Issue 3 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294437.ch81
Publication History
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1997
Book Series:
ISBN Information
Print ISBN: 9780470375495
Online ISBN: 9780470294437
- Summary
- Chapter
- References
Keywords:
- fabric orientation;
- mechanical behavior;
- ambient temperature;
- room-temperature behavior;
- oriented specimens
Summary
The effects of fabric orientation on the mechanical behavior of a Nicalon™/Alumina composite were investigated. Flexure specimens were subjected to monotonic and cyclicfatigue loadings, at ambient temperature in air, and at 1000 °C in argon atmosphere, with loading either parallel or normal to the fabric plies. The flexural strengths at the ambient and elevated temperatures were comparable. However, there was a significant degradation in the fatigue performance of the composite at 1000 °C compared to the room-temperature behavior, owing to creep in the material and degradation in the fiber strength. The edge-on specimens failed by breakage of the 0° fibers. In contrast, failure in the transversely oriented specimens occurred by interlaminar cracking, followed by specimen collapse.