Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Fabrication of SiC Fiber-SiC Matrix Composites by Reaction Sintering

  • Lim, Kwang-Young (Department of Materials Science and Engineering, University of Seoul) ;
  • Kim, Young-Wook (Department of Materials Science and Engineering, University of Seoul) ;
  • Park, Ji-Yeon (Division of Nuclear Materials Technology Development, Korea Atomic Energy Research Institute)
  • Published : 2008.04.30
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Abstract

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.

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References

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