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首页> 外文期刊>Metallurgical and Materials Transactions B >Viscosity Measurements of SiO2-“FeO”-CaO System in Equilibrium with Metallic Fe
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Viscosity Measurements of SiO2-“FeO”-CaO System in Equilibrium with Metallic Fe

机译：SiO2-“ FeO” -CaO体系与金属铁平衡时的粘度测量

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摘要

Viscosities of the synthetic slags have been measured at the temperature range of 1423 K to 1773 K (1150 °C to 1500 °C) in the SiO2-“FeO”-CaO system in equilibrium with Fe. The rotational spindle technique was employed in the measurements using molybdenum crucibles and spindles. Analysis of the quenched sample by electron probe X-ray microanalysis after the viscosity measurement enables the composition and microstructure of the slag to be directly linked with the viscosity. Effects of CaO and “FeO” on viscosity have been compared at different SiO2 concentrations. It was found that at low SiO2 concentration, the viscosities increase with the increasing CaO/“FeO” ratio. At high SiO2 concentration, the viscosities first decrease and then increase with the increasing CaO/“FeO” ratio. The activation energies increase with the increasing CaO/“FeO” ratio. The modified Quasi-chemical viscosity model has been further optimized in this system using the new viscosity measurements.
机译：在与Fe平衡的SiO2-“ FeO” -CaO系统中，已在1423 K至1773 K（1150°C至1500°C）的温度范围内测量了合成炉渣的粘度。在使用钼坩埚和锭子的测量中采用了旋转锭子技术。粘度测量后，通过电子探针X射线微分析对淬火样品进行分析，可以使炉渣的成分和微观结构与粘度直接相关。在不同的SiO2浓度下，已经比较了CaO和“ FeO”对粘度的影响。发现在低SiO2浓度下，粘度随CaO /“ FeO”比的增加而增加。在高SiO2浓度下，随着CaO /“ FeO”比的增加，粘度先降低然后升高。活化能随CaO /“ FeO”比的增加而增加。在该系统中，使用新的粘度测量值对修改后的准化学粘度模型进行了进一步优化。

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    《Metallurgical and Materials Transactions B》 |2015年第2期|577-584|共8页
  • 作者

    Mao Chen; Baojun Zhao;

  • 作者单位

    School of Chemical Engineering The University of Queensland">(1);

    School of Chemical Engineering The University of Queensland">(1);

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