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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제23권 제3호
- 발행연도
- 2022.6
- 수록면
- 247 - 251 (5page)
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초록· 키워드
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Fine β-SiC powders were synthesized from rice husks and fused silica powder. In this SiC powder synthesis, carbon flakes werecarbonized by heating rice husks with silica powder, and then the carbon flakes underwent a secondary reaction with the SiOvapor formed by the carbothermal reduction reaction. The SiC powders obtained from carbonized rice husks and fused silicapowder were characterized by XRD, XPS, SEM and TEM. In the XRD patterns, the spectra clearly showed very strong peaksfor the (111) plane near 35o and weak (220) and (311) peaks at approximately 60o and 72o, respectively. According to the XRDpattern, the powder synthesized from a 6:4 mixture of carbonized rice husks and silica under an Ar atmosphere containedmainly cubic crystalline SiC and a relatively small amount of a hexagonal phase without residual carbon. TEM images andFFT pattern showed that this specimen contained relatively fine particles (under 0.5 μm) and a crystalline 3C-SiC phase witha (100) diffraction pattern.
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