Chapter 25. Microstructure/Property Relationships for SiC Filament-Reinforced RBSN

  1. William Smothers
  1. N. D. Corbin,
  2. G. A. Rossetti Jr. and
  3. S. D. Hartline

Published Online: 27 MAR 2008

DOI: 10.1002/9780470320341.ch25

10th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings, Volume 7, Issue 7/8

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

Author Information

  1. Norton Co. High Performance Ceramics Northboro, MA 01606

Publication History

  1. Published Online: 27 MAR 2008
  2. Published Print: 1 JAN 1986

ISBN Information

Print ISBN: 9780470374672

Online ISBN: 9780470320341

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Keywords:

  • silicon nitride;
  • microstructure;
  • flexural strengths;
  • crack deflection;
  • organo-metallic

Summary

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.