Ceramic Matrix Composites: SiC Whisker–Reinforced
Published Online: 15 SEP 2011
Copyright © 2011 John Wiley & Sons, Inc. All rights reserved.
Wiley Encyclopedia of Composites
How to Cite
Nakao, W. 2011. Ceramic Matrix Composites: SiC Whisker–Reinforced. Wiley Encyclopedia of Composites. 1–6.
- Published Online: 15 SEP 2011
SiC-whisker-reinforced ceramic exhibits much higher fracture toughness than monolithic ceramics, because the whisker bridging and pullout provide much large fracture resistance when the crack propagates perpendicular to the longitudinal direction of the SiC whiskers. Owing to the toughening efficiency and the ease of processing, SiC whisker reinforcements have been employed not only for conventional ceramics such as alumina and silicon nitride but also for advanced ceramics such as zirconium diboride. Furthermore, SiC-whisker-reinforced ceramic matrix composites possess self-healing ability driven by the SiC whisker oxidation and the insulating electrical properties due to the SiC-whisker-interconnecting network. These features are expected to extend its applications. In this article, these mechanisms are overviewed and introduced in detail.
- fracture toughness;
- fiber reinforcement;
- electric conductivity