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Phase Equilibria Studies of Cu-O-Si Systems in Equilibrium with Air and Metallic Copper and Cu-Me-O-Si Systems (Me = Ca, Mg, Al, and Fe) in Equilibrium with Metallic Copper

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The pseudo-binary phase diagrams in the Cu-O-Si system in equilibrium with air and metallic copper have been constructed. Equilibration at high temperature in an appropriate containment material, followed by rapid quenching and measurement of phase compositions using an electron probe x-ray microanalysis (EPMA) technique, was carried out to obtain the phase equilibria data. The investigation has been extended to characterize the effects of CaO, MgO, Al2O3, and “Fe2O3” on the liquidus isotherms of tridymite in equilibrium with metallic copper at temperatures of 1473 K and 1573 K (1200 °C and 1300 °C).

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Acknowledgments

The authors thank the Australian Research Council Linkage program, Rio Tinto Kennecott Utah Copper Corp., Xstrata Technology, Xstrata Copper, BHP Billiton Olympic Dam Operation, and Outotec Oy for their financial support for this research. The authors also thank the University of the Queensland Research Scholarship (UQRS) and Endeavour International Postgraduate Research Scholarship (IPRS) programs for providing scholarships for T. Hidayat.

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Authors and Affiliations

  1. Pyrometallurgy Research Centre (PYROSEARCH), The University of Queensland, Brisbane, QLD, 4072, Australia

    Taufiq Hidayat (Postgraduate Student), Hector M. Henao (Senior Research Fellow), Peter C. Hayes (Xstrata Professor) & Evgueni Jak (Professor)

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  1. Taufiq Hidayat
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  2. Hector M. Henao
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  3. Peter C. Hayes
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  4. Evgueni Jak
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Correspondence to Taufiq Hidayat.

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Manuscript submitted March 2, 2012.

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Hidayat, T., Henao, H.M., Hayes, P.C. et al. Phase Equilibria Studies of Cu-O-Si Systems in Equilibrium with Air and Metallic Copper and Cu-Me-O-Si Systems (Me = Ca, Mg, Al, and Fe) in Equilibrium with Metallic Copper. Metall Mater Trans B 43, 1290–1299 (2012). https://doi.org/10.1007/s11663-012-9735-2

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  • DOI: https://doi.org/10.1007/s11663-012-9735-2

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