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Viscosity of SiO2-“FeO”-Al2O3 System in Equilibrium with Metallic Fe

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Abstract

The present study delivered the measurements of viscosities in SiO2-“FeO”-Al2O3 system in equilibrium with metallic Fe. The rotational spindle technique was used in the measurements at the temperature range of 1473 K to 1773 K (1200 °C to 1500 °C). Molybdenum crucibles and spindles were employed in all measurements. The Fe saturation condition was maintained by an iron plate placed at the bottom of the crucible. The equilibrium compositions of the slags were measured by EPMA after the viscosity measurements. The effect of up to 20 mol. pct Al2O3 on the viscosity of the SiO2-“FeO” slag was investigated. The “charge compensation effect” of the Al2O3 and FeO association has been discussed. The modified quasi-chemical viscosity model has been optimized in the SiO2-“FeO”-Al2O3 system in equilibrium with metallic Fe to describe the viscosity measurements of the present study.

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Acknowledgments

The authors would like to thank Ms. Jie Yu for the lab assistance in development of the viscosity measurement technique and Profs. Evgueni Jak and Peter Hayes for useful discussions. The authors also thank the University of Queensland International Research Tuition Award (UQIRTA) and China Scholarship Council (CSC) for providing scholarships for Mao Chen.

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Author notes

  1. Sreekanth Raghunath (M.Phil. Student)

    Present address: Zeus Numerix Pvt. Ltd., Bangalore, India

Authors and Affiliations

  1. School of Chemical Engineering, The University of Queensland, Brisbane, Australia

    Mao Chen (Postgraduate Student), Sreekanth Raghunath (M.Phil. Student) & Baojun Zhao (Fangyuan Fellow)

Authors
  1. Mao Chen
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  2. Sreekanth Raghunath
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  3. Baojun Zhao
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Correspondence to Baojun Zhao.

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Manuscript submitted January 23, 2013.

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Chen, M., Raghunath, S. & Zhao, B. Viscosity of SiO2-“FeO”-Al2O3 System in Equilibrium with Metallic Fe. Metall Mater Trans B 44, 820–827 (2013). https://doi.org/10.1007/s11663-013-9831-y

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