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首页> 外文期刊>ISIJ international >Surface Tension Calculation of Molten Slag in SiO2–Al2O3–CaO–MgO–‘FeO’–‘Fe2O3’ Systems Based on a Statistical Modelling Approach
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Surface Tension Calculation of Molten Slag in SiO2–Al2O3–CaO–MgO–‘FeO’–‘Fe2O3’ Systems Based on a Statistical Modelling Approach

机译：SiO 2 2 2 O -cao-mgo-'f-'fe 2中熔渣熔渣的表面张力计算 O 3 '系统基于统计建模方法

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摘要

A calculation model for surface tension of molten slags in SiO_(2)–Al_(2)O_(3)–CaO–MgO systems, based on a statistical modelling approach, was further extended to SiO_(2)–Al_(2)O_(3)–CaO–MgO–‘FeO’–‘Fe_(2)O_(3)’ multi-component systems. A total number of 1493 surface tension data reported in literatures, including 661 iron-containing data in this study, have been collected and critically reviewed for optimizing model parameters. The model achieves an excellent agreement with literature values for iron -containing melts with an average error of 4.9% and overall absolute error of 29.75 mN/m. Moreover, the dependence of surface tension on composition and temperature the composition has been discussed using the present model. The results show that the surface tension always obviously decrease with the increment of SiO_(2) content and substitution of CaO or Al_(2)O_(3) by MgO will cause a decrease in the surface tension. In case of silica-free ternary systems such as the Al_(2)O_(3)–CaO–‘Fe_(2)O_(3)’ and CaO–MgO–‘Fe_(2)O_(3)’, the surface tension decreases with increasing ‘Fe_(2)O_(3)’ concentration with constant Al_(2)O_(3) and CaO level respectively, indicating the network former role of ‘Fe_(2)O_(3)’ in these studied systems. Temperature coefficient is closely related with the melt composition and positive values for high ‘FeO’ and ‘Fe_(2)O_(3)’ contents in the melts were found.
机译：基于统计建模方法的SiO_（2）-Al_（2）O_（3）-Co-MgO系统中熔渣表面张力的计算模型进一步扩展到SiO_（2）-al_（2）O_ （3）-cao-mgo-'feo' - 'fe_（2）O_（3）'多组分系统。在文献中报告的1493个表面张力数据总数，包括本研究中的含铁数据661个数据，并批判地审查了优化模型参数。该模型实现了与铁 - 融合铁的文献值非常一致，平均误差为4.9％，总体绝对误差为29.75mn / m。此外，表面张力对组成和温度的依赖性使用本模型讨论了组合物。结果表明，表面张力总是随着MgO的CAO或AL_（2）O_（3）的含量和替代的增量而显然降低，将导致表面张力下降。在无二氧化硅的三元系统的情况下，例如AL_（2）O_（3）-cao-'fe_（2）O_（3）'和CAO-MgO-'fe_（2）O_（3）'，表面随着“FE_（2）O_（3）”浓度分别增加了“FE_（2）O_（3）”浓度，分别随常数AL_（2）O_（3）和CAO级别，指示在这些研究中的网络以前的角色'FE_（2）O_（3）'的网络。温度系数与熔体中的高'FeO'和'Fe_（2）O_（3）'含量的熔体组成和阳性值密切相关。

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