Chapter 25. Microstructure/Property Relationships for SiC Filament-Reinforced RBSN
- William Smothers
Published Online: 27 MAR 2008
Copyright © 1986 The American Ceramic Society, Inc.
10th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 7, Issue 7/8
How to Cite
Corbin, N. D., Rossetti, G. A. and Hartline, S. D. (1986) Microstructure/Property Relationships for SiC Filament-Reinforced RBSN, in 10th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 7, Issue 7/8 (ed W. Smothers), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470320341.ch25
- Published Online: 27 MAR 2008
- Published Print: 1 JAN 1986
Print ISBN: 9780470374672
Online ISBN: 9780470320341
- silicon nitride;
- flexural strengths;
- crack deflection;
Reaction-bonded silicon nitride has been reinforced by SiC filaments. The strength and toughness of this composite is dependent on the microstructure and microchemistty of the fiber/matrix interface. Room temperature flexural strengths of900 MPa have been observed. Weak interfadal bonding results in shear failure, whereas stronger bonding results in filament fracture and pullout. Auger analysis of the interface reveals that a pure carbon layer is responsible for shear failure. This material shows the highest strength because crack deflection in the carbon layer protects the SiC filament.