Chapter 52. The Mechanical Properties of Carbon Fiber Reinforced Sic Composites
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1993 The American Ceramic Society
Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10
How to Cite
Yoshida, H., Miyata, N., Hakoshima, J., Sagawa, M., Naito, K., Ishikawa, S., Yamagishi, C., Sohda, Y. and Ido, Y. (1993) The Mechanical Properties of Carbon Fiber Reinforced Sic Composites, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314234.ch52
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1993
Print ISBN: 9780470375273
Online ISBN: 9780470314234
- mechanical properties;
SiC composites reinforced with uni-directionally oriented carbon fibers (Ct/ SiC) were fabricated by the hot pressing method. The tensile strengths of carbon fibers after filament winding treatment, press treatment and heat treatment were measured to estimate the damage to the fibers under the Ci/SiC fabrication. Ct/SiC, fabricated with carbon fibers which were not easily deteriorated by these treatments, showed high fracture toughness and high flexural strength. The fracture toughness and flexural strength of Ct/SiC increased with the volume fraction of fibers in the range from 37 to 53%.
The fracture toughness of Ct/SiC also increased with the elastic modulus of fibers (Et) in the range of elastic modulus from 440GPa to 640GPa but the flexural strength of Ct/SiC indicated the optimum elastic modulus of fibers. The flexural strength of Ct/SiC fabricated with suitable carbon fibers showed 910MPa at room temperature and 960MPa at 1450|dGC and the fracture toughness of Ct/SiC showed 26MPa✓m