Volume 14, Issue 3, 2005

Mechanical Properties of SiC Short-FibRE-Reinforced SiC Composites Fabricated by Tape Casting and Hot-Pressing

Jae-Seol LEE* and Toyohiko Yano

Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology 2-12-1, O-okayama, Meguro-ku, Tokyo 152-8550, Japan

*Author to whom correspondence should be addressed
Gwangju Research Centre, Korea Institute of Industrial Technology, Wolgye-dong, Gwangsan-gu, Gwangju 506-824, Korea

(Received 2/05; accepted 5/05)

Abstract
In order to examine the effects of sintering additives on microstructure and mechanical properties of SiC short-fibre-reinforced SiC composites, a ZrO2-Y2O3-Al2O3 additive system was applied in this study. The aim of this study was to investigate the influence of the sintering additives on the mechanical properties of SiC/SiC composites using Tyranno SA short fibres. A ZrO2-Y2O3-Al2O3 mixture was chosen for fabrication of the short-fibre-reinforced SiC composites as sintering additives because of their relatively low densification temperature and non-reactivity with SiC. Compare with the previous results, the influence of sintering additives on the mechanical and thermal properties of the SiC/SiC composites was discussed.
Keywords: SiC/SiC composites, Short fibre, Microstructure, Mechanical property

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