| 탄소섬유 배열이 LSI Cf-Si-SiC 복합체의 특성에 미치는 영향 |
| 지영화, 한인섭, 김세영, 서두원, 홍기석, 우상국 |
| 한국에너지기술연구원 융복합재료연구센터 |
| Effects of Carbon Fiber Arrangement on Properties of LSI Cf-Si-SiC Composites |
| Young-Hwa Ji, In-Sub Han, Se-Young Kim, Doo-Won Seo, Ki-Seog Hong, Sang-Kuk Woo |
| Convergence Materials Research Center, Korea Institute of Energy Research (KIER) |
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| ABSTRACT |
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Carbon fiber fabric-silicon carbide composites were fabricated by liquid silicon infiltration (LSI) process. The porous two-dimensional carbon fiber fabric performs were prepared by 13 plies of 2D-plain-weave fabric in a three laminating method, [0/90], [${pm}45$], [$0/90/{pm}45$] lay-up, respectively. Before laminating, a thin pyrolytic carbon (PyC) layer deposited on the surface of 2D-plain weave fabric sheets as interfacial layer with $C_3H_8$ and $N_2$ gas at $900^{circ}C$. A densification of the preforms for $C_f-Si-SiC$ matrix composite was achieved according to the LSI process at $1650^{circ}C$ for 30 min. in vacuum atmosphere. The bending strength of the each composite were measured and the microstructural consideration was performed by a FE-SEM. |
| Key words:
Carbon fiber composite, LSI, Fabric laminating, Pyrolytic carbon, Reaction sintering |
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