Phase Equilibria in the ZnO-“FeO”-SiO2 System in Reducing Atmosphere and in the ZnO-“FeO”-SiO2-“Cu2O” System in Equilibrium with Liquid Copper Metal at 1250°C (1523K)

Phase Equilibria in the ZnO-“FeO”-SiO2 System in Reducing Atmosphere and in the... Phase Equilibria in the ZnO-‘‘FeO’’-SiO System in Reducing Atmosphere and in the ZnO-‘‘FeO’’- SiO -‘‘Cu O’’ System in Equilibrium with Liquid 2 2 Copper Metal at 1250 C (1523 K) TAUFIQ HIDAYAT, PETER C. HAYES, and EVGUENI JAK Recent experimental studies in the ZnO-‘‘FeO’’-SiO system in reducing atmosphere demonstrated significant discrepancies with the current FactSage thermodynamic model developed using previous experimental data in this system in equilibrium with metallic iron and air. The present experimental study on phase equilibria in the ZnO-‘‘FeO’’-SiO -‘‘Cu O’’ 2 2 system in equilibrium with liquid copper at 1250 C (1523 K) at low copper oxide concentrations in slag was initiated and undertaken to resolve these discrepancies. A high-temperature equilibration–rapid quenching–electron-probe X-ray microanalysis (EPMA) technique using a primary phase substrate support and closed system approach with Cu metal introduced to determine effective equilibrium oxygen partial pressure from the Cu /Cu O metal 2 slag equilibria was applied to provide accurate information on the liquidus and corresponding solid compositions in the spinel, willemite, and tridymite primary phase fields. The present results confirmed the accuracy of the FactSage model, resolved discrepancies, and demonstrated significant uncertainties in the recent studies by other authors on the system in http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Metallurgical and Materials Transactions B Springer Journals

Phase Equilibria in the ZnO-“FeO”-SiO2 System in Reducing Atmosphere and in the ZnO-“FeO”-SiO2-“Cu2O” System in Equilibrium with Liquid Copper Metal at 1250°C (1523K)

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Publisher
Springer Journals
Copyright
Copyright © 2018 by The Minerals, Metals & Materials Society and ASM International
Subject
Materials Science; Metallic Materials; Characterization and Evaluation of Materials; Structural Materials; Surfaces and Interfaces, Thin Films; Nanotechnology
ISSN
1073-5615
eISSN
1543-1916
D.O.I.
10.1007/s11663-018-1285-9
Publisher site
See Article on Publisher Site

Abstract

Phase Equilibria in the ZnO-‘‘FeO’’-SiO System in Reducing Atmosphere and in the ZnO-‘‘FeO’’- SiO -‘‘Cu O’’ System in Equilibrium with Liquid 2 2 Copper Metal at 1250 C (1523 K) TAUFIQ HIDAYAT, PETER C. HAYES, and EVGUENI JAK Recent experimental studies in the ZnO-‘‘FeO’’-SiO system in reducing atmosphere demonstrated significant discrepancies with the current FactSage thermodynamic model developed using previous experimental data in this system in equilibrium with metallic iron and air. The present experimental study on phase equilibria in the ZnO-‘‘FeO’’-SiO -‘‘Cu O’’ 2 2 system in equilibrium with liquid copper at 1250 C (1523 K) at low copper oxide concentrations in slag was initiated and undertaken to resolve these discrepancies. A high-temperature equilibration–rapid quenching–electron-probe X-ray microanalysis (EPMA) technique using a primary phase substrate support and closed system approach with Cu metal introduced to determine effective equilibrium oxygen partial pressure from the Cu /Cu O metal 2 slag equilibria was applied to provide accurate information on the liquidus and corresponding solid compositions in the spinel, willemite, and tridymite primary phase fields. The present results confirmed the accuracy of the FactSage model, resolved discrepancies, and demonstrated significant uncertainties in the recent studies by other authors on the system in

Journal

Metallurgical and Materials Transactions BSpringer Journals

Published: May 31, 2018

References

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