An experimental study on the phase equilibria of the CaO-MgO-SiO2-13% Al2O3-50%TiO2 system in air at 1450 °C

被引：5
作者：
Jing, Jianfa [1 ]
Wang, Shuai [1 ]
Guo, Yufeng [1 ]
Chen, Feng [1 ]
Yang, Lingzhi [1 ]
Qiu, Guanzhou [1 ]
机构：
[1] Cent South Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China
来源：
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2023年 / 83卷
基金：
中国国家自然科学基金;
关键词：
Equilibrium phase relations; Isotherm lines; Anosovite; Quenching method; BLAST-FURNACE SLAG; CAO-SIO2-AL2O3-MGO SYSTEM; CAO/SIO2; RATIO; TITANIUM; FACTSAGE; TEMPERATURES; MECHANISM; RELEVANT; SOFTWARE; PART;
D O I：
10.1016/j.calphad.2023.102619
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This study systematically investigates the phase equilibrium relations of the CaO-MgO-SiO2-13%Al2O3-50% TiO2 system in air at 1450 degrees C. Within the composition range, the coexistence of the liquid phase with anosovite and rutile, liquid-rutile (TiO2), liquid-anosovite (M3O5), liquid phase with anosovite and spinel, liquid-spinel, liquid phase with perovskite and spinel, and liquid-perovskite (CaTiO3) were found. Additionally, the 1450 degrees C isotherm in this system was obtained by comparing the experimental liquid phase results with the predicted results by FactSage 8.1. The experimental findings indicated that an increase in MgO content contributed to a higher concentration of MgTi2O5 in the anosovite solid solution. Notably, the predicted liquidus temperature was much lower than the experimentally determined liquidus temperatures within the primary of M3O5 and spinel area. This work would contribute to further refining the phase diagram of the titania-containing systems.
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页数：8
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