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J. Korean Ceram. Soc. > Volume 46(5); 2009 > Article
Journal of the Korean Ceramic Society 2009;46(5): 528.
doi: https://doi.org/10.4191/kcers.2009.46.5.528
β-SiC 분말 Seeds가 Sol-gel 공정으로 합성된 고순도 β-SiC 분말 형상 및 크기에 미치는 영향
김규미, 조경선, 박상환
한국과학기술연구원 재료기술연구본부
Effects of β-SiC Particle Seeds on Morphology and Size of High Purity β-SiC Powder Synthesized using Sol-Gel Process
Gyu-Mi Kim, Gyoung-Sun Cho, Sang-Whan Park
Material Science & Technology Research Division, Korea Institute of Science and Technology
High purity $beta$-SiC powders were synthesized using sol-gel processing. TEOS and phenol resin were used as the starting material for the silicon source and carbon source, respectively. The process turned out to be capable of producing high purity SiC powder purity degree with 99.98 %. However, it was difficult to control the shape and size of $beta$-SiC powders synthesized by sol-gel process. In this study, $beta$-SiC powder with size of $1{sim}5$ um an 30 nm were used as the seeds for $beta$-SiC to control the $beta$-SiC powder morphology. It was found that $beta$-SiC powder seeds was effective to increase the powder average size of synthesized $beta$-SiC using sol-gel process by acting as the preferred growing sites for $beta$-SiC.
Key words: Sol-gel process, Synthesis of SiC, $\beta$-SiC, Powder, High purity, Seeds
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