Evaluation of Surface Tension of CaO-SiO2-Al2O3-Based Mold Flux Containing Ce2O3

被引：2

作者：

Geng, Xin ^{[1
,2
]}

Li, Boyang ^{[1
]}

Jiang, Zhouhua ^{[1
,2
]}

机构：

[1] Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China

[2] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China

来源：

STEEL RESEARCH INTERNATIONAL | 2023年 / 94卷 / 03期

基金：

中国国家自然科学基金;

关键词：

calculation model; Ce2O3; mold flux; sessile drop method; surface tension; SILICATE MELTS; MOLTEN; THERMODYNAMICS; TEMPERATURE;

D O I：

10.1002/srin.202200715

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The calculation model based on the surface tension of CaO-SiO2-Al2O3-based mold flux containing Ce2O3 is studied using the modified Butler equation, and the surface tension of mold flux is measured by the sessile drop method. The experimental results show that the calculated surface tension based on the model agrees well with the experimental values, and the absolute value of the error is less than 3.23%. With the content of Ce2O3 in the mold flux increasing from 0% to 20%, the surface tension of the mold flux increases from 0.380 to 0.405 N m(-1). The O2- dissociated from Ce2O3 makes the radius of the silicon-oxygen tetrahedral anion decrease, and the ion-to-ion interaction force in the melt increase. Therefore, the surface tension of the melt increases with the increase of Ce2O3 content in the mold flux. However, the amount of dissociated O2- is limited, so the effect of Ce2O3 on the surface tension of the mold flux is limited.

引用

页数：6

共 28 条

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