용융 Si 침윤법에 의해 제조된 반응소결 탄소 섬유강화 탄화규소 복합체 제조; I. 탄소 섬유 코팅 방법에 따른 영향 |
윤성호, Phung Nhut Tan, 조경선1, 정훈, 김영도1, 박상환 |
한국과학기술연구원 재료기술연구본부 1한양대학교 신소재공학과 |
Fabrication of Carbon Fiber Reinforced Reaction Bonded SiC Composite Fabricated by a Molten Si Infiltration Method; I. The Effect of Carbon Fiber Coating Process |
Sung-Ho Yun, Phung Nhut Tan, Gyung-Sun Cho1, Hun Cheong, Young-Do Kim1, Sang-Whang Park |
Materials Science and Technology Research Division, Korea Institute of Science and Technology 1Department Materials Science and Engineering, Hanyang University |
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ABSTRACT |
Reaction bonded silicon carbide (RBSC) composite for heat-exchanger was fabricated by molten Si infiltration method. For enforcing fracture toughness to reaction bonded silicon carbide composite, the surface of carbon fiber has coating layer by SiC or pyro-carbon. For SiC layer coating, CVD method was used. And for carbon layer coating, the phenol resin was used. In the case of carbon layer coating, fracture toughness and fracture strength were enhancing to 4.4 $MPa{cdot}m^{1/2}$ and 279 MPa. |
Key words:
Silicon carbide, RBSC, Si infiltration, Phenol resin, Heat-exchanger |
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