Effect of Initial Porosity on Mechanical Properties of C/SiC Composites Fabricated by Silicon Melt Infiltration Process
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Published:2004-04
Issue:
Volume:261-263
Page:1445-1450
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ISSN:1662-9795
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Container-title:Key Engineering Materials
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language:
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Short-container-title:KEM
Author:
Bae Dong Su1,
Son Dong Young,
Lee Sang Ll2,
Park Hong Sik,
Kim Kwang Soo3,
Jeon Jae Ho4
Affiliation:
1. Dong Eui University
2. Dongeui University
3. Sogang University
4. Korea Institute of Machinery and Materials
Abstract
Four kinds of raw C/C composites with a density between 1.25~1.66g/㎤ were used in order to investigate the effect of the initial porosity of C/C composites on mechanical properties of liquid silicon infiltrated C/SiC composites. The microstructure observation, image analysis and flexural strength test of the composites were performed. The density and microstructural changes with the variation of the initial porosity was discussed in the terms of the infiltration behavior of liquid silicon and the reaction between liquid silicon and matrix carbon.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science