소성 점토의 침탄 처리에 따른 물성 변화에 관한 연구
Characteristics of Calcined Clay by Carburization Treatment
1
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
Traditionally and generally used calcined clay was carburized, and its characteristics were studied. Carburization treatment was performed by the thermally decomposed carbon and the deposit carbon which occur in a so called 'Boudouard reaction (2CO→CO₂ + C) at fuel combustion process in a closed-type furnace. The color of the carburized calcine clay changed from yellow to black, and the carbon component revealed as crystalline graphite by the X-ray diffraction test. The weight of the carburized calcine clay decreased to about 4wt.% by the 1st heating to 1400℃ in air but it does not decreased by the 2nd heating of the same conditions. By the carburization treatment, the water absorption changed from 13wt.% to 6wt.%, and the contact angle for water drop changed, too, from 0 to 87˚ which was tested by the photograph of one minute after a water drop contact. It means the carburized calcine clay does not absorb water drop so it has a hydrophobic characteristic.
Abstract
Traditionally and generally used calcined clay was carburized, and its characteristics were studied. Carburization treatment was performed by the thermally decomposed carbon and the deposit carbon which occur in a so called 'Boudouard reaction (2CO→CO₂ + C) at fuel combustion process in a closed-type furnace. The color of the carburized calcine clay changed from yellow to black, and the carbon component revealed as crystalline graphite by the X-ray diffraction test. The weight of the carburized calcine clay decreased to about 4wt.% by the 1st heating to 1400℃ in air but it does not decreased by the 2nd heating of the same conditions. By the carburization treatment, the water absorption changed from 13wt.% to 6wt.%, and the contact angle for water drop changed, too, from 0 to 87˚ which was tested by the photograph of one minute after a water drop contact. It means the carburized calcine clay does not absorb water drop so it has a hydrophobic characteristic.
참고문헌 (13)
- 국립부여박물관 편집부, "박물관 들여다보기" (2006), 국립 부여박물관
- 국립공주박물관, "공주박물관과 공주의 유적" (1991), 국립 공주박물관
- 충남대학교, "백제와전도보" (1972), 충남대학교 백제연구소
- 최헌진, , 한국세라믹학회지, 36(1), pp.36~ (1999)
- 朴光源, , 대한금속학회지, 25, pp.579~ (1987)
- 岡部安三, , 日本化學會誌, 2, pp.188~ (1980)
- Q. Zhuang, , Energy and Fuels, 9(4), pp.630~ (1995)
- 國井大藏, "爐と燃燒裝置", pp.104~ (1976), 科學技術社
- W. R. Smith, , J. Phys. Chem, 60, pp.689~ (1956)
- H. Marsh, , Carbon, 19, pp.375~ (1981)
- J. F. Strange, , Carbon, 14, pp.345~ (1976)
- M. Menster, "US Bur. Mines", Bull, 42, pp.664~ (1973)
- T. Meguro, "Kinetics of gasification of glass-like carbons heat-treated at various temperatures with CO2", Journal of Ceramic Processing Research, 8(1), pp.12~18 (2007), 세라믹공정연구센터