2008•Ceramic engineering and science proceedingsRequires access

Processing of SiC Whisker-Reinforced Si3N4 Composites

Chih‐Chin Shih, J.‐M. Yang, A. Ezis

Abstract

SiC whisker-reinforced Si3f4 composites with two different matrix compositions have been fabricated using reaction bonding/hot pressing technique. The microstructural development after nitridation and densification was characterized using x-ray diffraction and electron microscopy. The flexural strength, fracture toughness, and failure mechanisms of the composites were investigated and correlated with microstructural features. The parameters controlling the microstructure development, densification behavior, and mechanical properties of the SiCw/Si3N4 composites were also identified.

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Available abstract

Key concepts: Whisker, Materials science, Composite material, Microstructure, Flexural strength, Fracture toughness, Hot pressing, Toughness