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首页> 外文期刊>ISIJ international >Surface Tension Calculation of Molten Slag in SiO_2-Al_2O_3-CaO-MgO-'FeO'-'Fe_2O_3' Systems Based on a Statistical Modelling Approach
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Surface Tension Calculation of Molten Slag in SiO_2-Al_2O_3-CaO-MgO-'FeO'-'Fe_2O_3' Systems Based on a Statistical Modelling Approach

机译：基于统计建模方法的SIO_2-AL_2O_3-CAO-MGO-“FE_2O_3”系统熔渣表面张力计算

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摘要

A calculation model for surface tension of molten slags in SiO_2-Al_2O_3-CaO-MgO systems, based on a statistical modelling approach, was further extended to SiO_2-Al_2O_3-CaO-MgO-'FeO'-'Fe_2O_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_2O_3 by MgO will cause a decrease in the surface tension. In case of silica-free ternary systems such as the Al_2O_3-CaO-'Fe_2O_3' and CaO-MgO-'Fe_2O_3', the surface tension decreases with increasing 'Fe_2O_3' concentration with constant Al_2O_3 and CaO level respectively, indicating the network former role of 'Fe_2O_3' in these studied systems. Temperature coefficient is closely related with the melt composition and positive values for high 'FeO' and 'Fe_2O_3' contents in the melts were found.
机译：基于统计建模方法的SiO_2-AL_2O_3-CAO-MGO系统中熔渣表面张力的计算模型进一步扩展到SiO_2-AL_2O_3-CAO-MgO-'Feo' - 'Fe_2O_3'多分量系统。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SiO_2含量的增量而降低，MgO的CaO或Al_2O_3的替代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_2O_3-CAO-'FE_2O_3'和CAO-MgO-'FE_2O_3'，随着常量AL_2O_3和CAO水平的“FE_2O_3”浓度增加，表面张力也会随着恒定的AL_2O_3和CAO水平而降低。指示网络以前的角色在这些研究的系统中的'fe_2o_3'。温度系数与熔体组合物密切相关，并发现高'Feo'和'Fe_2O_3'含量的阳性值。

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  • 来源
    《ISIJ international》 |2020年第11期|2306-2315|共10页
  • 作者

    Jianjiang XIN; Nan WANG; Min CHEN;

  • 作者单位

    Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education) Northeastern University 3-11 Wen-Hua Road Shenyang 110819 China School of Metallurgy Northeastern University 3-11 Wen-Hua Road Shenyang 110819 China;

    School of Metallurgy Northeastern University 3-11 Wen-Hua Road Shenyang 110819 China;

    Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education) Northeastern University 3-11 Wen-Hua Road Shenyang 110819 China School of Metallurgy Northeastern University 3-11 Wen-Hua Road Shenyang 110819 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    surface tension; statistical modeling approach; iron-containing molten slag;

    机译：表面张力;统计建模方法;含铁熔渣;

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