Abstract

ABSTRACT The influence of different SiC whiskers on the processing and performance of Al2O3 matrix composites were investigated. Three types of commercial SiC whiskers produced in the United States were used. The composites contained 30 v/o of SiC whisker and were consolidated by both hot pressing (HP) and hot pressing followed by hot isostatic pressing (HP/HIP) techniques. The microstructure, mechanical properties, fracture behavior and toughening mechanisms of the composites were evaluated. The results show that the whisker types and processing techniques have profound effect on the densification and the properties of the composites.

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