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J. Korean Ceram. Soc. > Volume 26(4); 1989 > Article
Journal of the Korean Ceramic Society 1989;26(4): 471.
졸-겔법에 의한 실리카 유리의 제조와 온도 의존성 및 활성화에너지 변화
이경희, 이병하, 오부근, 안광훈, 김종옥1
명지대학교 무기재료공학과
1배제대학 무기재료공학과
Silica Glass Preparation by the Sol-Gel Process and the Temperature Dependence on Changes of Apparent Activation Evergies
In this study we investigated the gelation time of sol which containing mixtures of TEOS with H2O, ethanol, HCl in the preparation of monolithic silica glass through Sol-Gel method. In this case apparent activation energies were observed by Arrhenius equation. We investigated the conversion from gel to glass in drying and heat treatment stages using DT-TG, FT-IR, XRD analysis and dried gel conversed to glass by heat treatment up to 85$0^{circ}C$. The results of this experiment showed that the gelation time of solutions were promoted when increasing the amount of addition of H2O and HCl catalyst for TEOS and high reaction temperature of solution.
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