Mechanical Properties of Alumina/Silicon Carbide Whisker Composites
- 1 October 1989
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 72 (10) , 1880-1884
- https://doi.org/10.1111/j.1151-2916.1989.tb05995.x
Abstract
The improvement of mechanical properties of Al2O3/SiC whisker composites has been studied with emphasis on the effects of the whisker content and of the hot‐pressing temperature. Mechanical properties such as fracture toughness and fracture strength increased with increasing whisker content up to 40 wt%. In the case of the high SiC whisker content of 40 wt%, fracture toughness of the sample hot‐pressed at 1900° decreased significantly, in spite of densification, compared with one hot‐pressed at 1850°. Fracture toughness strongly depended on the microstructure, especially the distribution of SiC whiskers rather than the grain size of the Al2O3 matrix.Keywords
This publication has 5 references indexed in Scilit:
- Microstructure and Mechanical Properties of Al2O3-SiC CompositesJournal of the Ceramic Association, Japan, 1986
- Fracture Behavior of SiC Matrix Composites Reinforced with Helical Tantalum FiberPublished by ASTM International ,1985
- Fracture toughness determination of bearing steel using chevron-notch three point bend specimenEngineering Fracture Mechanics, 1984
- Toughening Behavior in Sic‐Whisker‐Reinforced AluminaJournal of the American Ceramic Society, 1984
- Crack deflection processes—I. TheoryActa Metallurgica, 1983