| Fabrication of SiC Fiber-SiC Matrix Composites by Reaction Sintering |
| Kwang-Young Lim, Young-Wook Kim, Ji-Yeon Park1 |
Department of Materials Science and Engineering, University of Seoul
1Division of Nuclear Materials Technology Development, Korea Atomic Energy Research Institute |
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| ABSTRACT |
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This paper presents a new process for producing SiC fiber-SiC matrix(SiC/SiC) composites by reaction sintering. The processing strategy for the fabrication of the SiC/SiC composites involves the following: (1) infiltration of the SiC fiber fabric using a slurry consisting of Si and C precursors, (2) stacking the slurry-infiltrated SiC fiber fabric at room temperature, (3) cross-linking the stacked composites, (4) pyrolysis of the stacked composites, and (5) hot-pressing of the pyrolyzed composites. It was possible to obtain dense SiC/SiC composites with relative densities of >96% and a typical flexural strength of ${sim}400$ MPa. |
| Key words:
Fiber composites, Silicon carbide, Reaction sintering, Strength |
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