In-situ observation of dynamic interfacial phenomena between CaO-(SiO2 or Al2O3) slag and Fe-11%Cr alloy near the MgO-6%C refractory at 1823 K

被引：0
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作者：
Minsoo Shin
Seungyoun Cho
Joonho Lee
Joo-Hyun Park
机构：
[1] Korea University,Department of Materials Science & Engineering
[2] University of Ulsan,School of Materials Science & Engineering
来源：
Metals and Materials International | 2010年 / 16卷
关键词：
oxides; purification; wetting; image analysis; dynamic interfacial phenomena;
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学科分类号：
摘要：
We investigated dynamic interfacial phenomena at the slag-metal-refractory three-phase interface using a high temperature X-ray radiographic technique. Dynamic movement of the metal-slag line between Fe-11%Cr alloy and CaO-(SiO2 or Al2O3) slag was observed near the MgO-6%C refractory at 1823 K. We observed corresponding local corrosion of the refractory with CaO-SiO2 slag but it was negligible with CaO-Al2O3 slag. From a thermodynamic perspective, the Marangoni convection at the slag-metal-refractory interface is not the dominant factor determining the corrosion rate of the MgO-C refractory. Rather, it is the large solubility limit and the mass transfer in the slag phase.
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页码：495 / 499
页数：4
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