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Experimental Investigation on Viscosity of CaO-MgO(-Al2O3)-SiO2 Slags and Solid-liquid Mixtures

  • Metallurgy and Metal Working
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Abstract

The viscosities for the selected CaO-MgO-SiO2 and CaO-MgO-Al2O3-SiO2 slags were measured by rotating cylinder method in a wide temperature range from 1608 K to 1823 K. The effects of temperature, slag basicity and Al2O3 content were studied. The results indicated that the viscosity decreased with increasing the slag basicity at the same temperature. And the viscosities of the slag initially increased linearly with increasing Al2O3 content in the slags and then decreased as the Al2O3 content in the slags continued to increase. Al2O3 addition has a more significant effect on the viscosity than slag basicity in the selected slags. Based on the experimental data and the fraction of solid phases calculated by the thermodynamic software, the effect of solid phases on slag viscosity was evaluated. The results indicated that the relationship between the relative viscosity and the volume fraction of solid phases estimated from the slag composition can be reasonable by allowing the inverse maximum fraction of solid particles to vary.

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Authors and Affiliations

  1. Shagang School of Iron and Steel, Soochow University, 215021, Suzhou, Jiangsu, China

    Ji-fang Xu (Doctor), Li-juan Su (Master), Dong Chen & Yao Chen

  2. Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University, 200072, Shanghai, China

    Jie-yu Zhang

Authors
  1. Ji-fang Xu
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  2. Li-juan Su
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  3. Dong Chen
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  4. Jie-yu Zhang
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  5. Yao Chen
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Correspondence to Li-juan Su.

Additional information

Foundation Item: Item Sponsored by National Natural Science Foundation of China (50874072); Natural Science Foundation of Jiangsu Province of China (BK20130308); China Postdoctoral Science Foundation (2014M561710)

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Xu, Jf., Su, Lj., Chen, D. et al. Experimental Investigation on Viscosity of CaO-MgO(-Al2O3)-SiO2 Slags and Solid-liquid Mixtures. J. Iron Steel Res. Int. 22, 1091–1097 (2015). https://doi.org/10.1016/S1006-706X(15)30117-5

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  • DOI: https://doi.org/10.1016/S1006-706X(15)30117-5

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