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Experimental study of phase equilibria in the systems Fe-Zn-O and Fe-Zn-Si-O at metallic iron saturation

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Abstract

The reported experimental work on the systems Fe-Zn-O and Fe-Zn-Si-O in equilibrium with metallic iron is part of a wider research program that combines experimental and thermodynamic computer modeling techniques to characterize zinc/lead industrial slags and sinters in the system PbO-ZnO-SiO2-CaO-FeO-Fe2O3. Extensive experimental investigations using high-temperature equilibration and quenching techniques followed by electron probe X-ray microanalysis (EPMA) were carried out. Special experimental procedures were developed to enable accurate measurements in these ZnO-containing systems to be performed in equilibrium with metallic iron. The systems Fe-Zn-O and Fe-Zn-Si-O were experimentally investigated in equilibrium with metallic iron in the temperature ranges 900 °C to 1200 °C (1173 to 1473 K) and from 1000 °C to 1350 °C (1273 to 1623 K), respectively. The liquidus surface in the system Fe-Zn-Si-O in equilibrium with metallic iron was characterized in the composition ranges 0 to 33 wt pct ZnO and 0 to 40 wt pct SiO2. The wustite (Fe,Zn)O, zincite (Zn,Fe)O, willemite (Zn,Fe)2SiO4, and fayalite (Fe,Zn)2SiO4 solid solutions in equilibrium with metallic iron were measured.

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Authors and Affiliations

  1. the Department of Mining, Minerals and Materials Engineering, The University of Queensland, 4072, St Lucia, Queensland, Australia

    Evgueni Jak (Senior Research Fellow), Baojun Zhao (Postdoctoral Research Fellow) & Peter C. Hayes (Associate Professor)

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  1. Evgueni Jak
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  2. Baojun Zhao
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  3. Peter C. Hayes
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Jak, E., Zhao, B. & Hayes, P.C. Experimental study of phase equilibria in the systems Fe-Zn-O and Fe-Zn-Si-O at metallic iron saturation. Metall Mater Trans B 31, 1195–1201 (2000). https://doi.org/10.1007/s11663-000-0006-2

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  • DOI: https://doi.org/10.1007/s11663-000-0006-2

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