발간논문

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Vol.26, No.6, 552 ~ 561, 1988
Title
Effect of Al2O3 on Phase Equilibria in the system Fe2O3 - CaO - SiO2 - Al2O3
윤수종Su Jong Yoon, 조용환Yong Hwan Cho, 양철기Cheul Kee Yang
Abstract
Phase relations in the quaternary system of Fe₂O-CaO-SiO₂-A1₂0₃in the temperature range between 1450℃ and 1200℃ were studied. So-called calcium-ferrite was crystallized and its composition and amount were studied. 1) Calcium-ferrite was identified as a solid solution of CaO·2Fe₂03 and CaO·6A1₂O₃ with 3.5 to 6.7 wt% solubility of SiO₂ 2) With increasing the portion of A1₂0₃in the system, the amount of the crystallized calcium-ferrite was increased and the crystallization temperature was enhanced. 3) The solubility of Al₂O₃in the calcium ferrite was increased and the solubility of Fe₂O₃ was decreased with increasing the portion of Al₂O₃in the system. 4) Increasing the portion of CaO in the system landed to increase the amount of calcium-ferrite and enhance the crystallization temperature.
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