| Effect of the Processing Parameters on the Densification and Strength of 2D SiC Fiber-SiC Matrix Composites Fabricated by Slurry Infiltration and Stacking Process |
| Kwang-Young Lim, Doo-Hee Jang, Young-Wook Kim, Ji-Yeon Park1, Dong-Soo Park2 |
Department of Materials Science and Engineering, University of Seoul
1Division of Nuclear Materials Technology Development, Korea Atomic Energy Research Institute
2Department of Future Technology, Korea Institute of Machinery and Materials |
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| ABSTRACT |
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2D SiC fiber-SiC (SiC/SiC) composites were fabricated via slurry infiltration and a stacking process. The effects of the additive composition and content in SiC slurries and the effect of the sintering time on the sintered density and strength of SiC/SiC composites were investigated. A slurry containing $Al_2O_3-Y_2O_3-MgO$ (AYM) additives led to a higher strength compared to a slurry containing $Al_2O_3-Y_2O_3-CaO$ (AYC) additives. The sintered density increased as the sintering time increased and showed a maximum (>98%) at 4 h. In contrast, the flexural strength increased as the sintering time increased and showed a maximum (615 MPa) at 6 h. The relative density and flexural strength increased as the additive content increased. |
| Key words:
Fiber composites, Silicon carbide, Densification, Strength, Processing parameter |
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