Abstract
CaO–Al2O3-CeOx slag system is of great significance for designing a new type of metallurgical slag system suitable for rare earth steel. In this paper, the phase equilibria of CaO–Al2O3-CeOx system were experimentally studied. Isothermal sections of CaO–Al2O3–Ce2O3 system and CaO–Al2O3–CeO2 system at 1600 °C were constructed, respectively. 4 three-phase fields, 5 two-phase fields and a single liquid phase field in CaO–Al2O3–Ce2O3 system were determined; 2 three-phase fields, 3 two-phase fields and a single liquid phase field in CaO–Al2O3–CeO2 system were determined. On this basis, the dissolution process of three typical inclusions (viz. Al2O3, CeAl11O18 and CeAlO3) in CaO–Al2O3–Ce2O3 slag system was discussed.
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