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Influence of MgO on the phase equilibria in the CuOx–FeOy–MgO–SiO2 system in equilibrium with copper alloy – Part I: methodology and liquidus in the tridymite primary phase field

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Published/Copyright: May 12, 2015
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 106 Issue 5

Abstract

Phase equilibria in the ‘Cu2O’–‘Fe2O3’–MgO–SiO2 system in equilibrium with copper alloy have been investigated at temperatures between 1 100 and 1 250 °C. A high-temperature equilibration/quenching/electron probe micro-analysis technique has been used to accurately determine the liquid and solid compositions. The standard methodology has been modified to accurately determine the phase equilibria and liquidus in this particular chemical system. Results on phase equilibria in the tridymite primary phase field, including the tridymite–pyroxene, tridymite–spinel and tridymite–pyroxene–spinel phase boundaries, are reported. The study demonstrates the validity of the method and provides new data on the effect of MgO on the tridymite liquidus temperatures. Increasing MgO concentration was found to decrease the tridymite liquidus.

Keywords: Slag; Phase equilibria; ‘Cu2O’–‘Fe2O3’–MgO–SiO2; Liquidus
* Correspondence address, Mr. Tijl Crivits, School of Chemical Engineering, Level 3, Chemical Engineering Building (74), The University of Queensland, Brisbane, 4072 QLD, Australia, Tel.: +61 435064434, E-mail:

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Received: 2014-08-26
Accepted: 2014-12-12
Published Online: 2015-05-12
Published in Print: 2015-05-13

© 2015, Carl Hanser Verlag, München

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Thermodynamic description of the Ti–O system
  5. Influence of MgO on the phase equilibria in the CuOx–FeOy–MgO–SiO2 system in equilibrium with copper alloy – Part I: methodology and liquidus in the tridymite primary phase field
  6. Experimental phase diagram of the V–Si–Ho ternary system
  7. Experimental study of the phase relationships in the Al-rich corner of the Al–Si–Fe–Cr quaternary system at 700 °C
  8. Effect of quench–ageing treatment on the microstructure and properties of Zn-15Al-3Cu alloy
  9. Grain growth and thermal stability in nanocrystalline Fe–B alloys prepared by melt spinning
  10. Microatmosphere sintering of Fe-3.2Mn-1.5Si-0.5C steel in flowing technical nitrogen
  11. Structural, thermal and optical studies of nanocomposite powder NiSb + Sb produced by mechanical alloying
  12. Effect of Mo/B atomic ratio on the properties of Mo2NiB2-based cermets
  13. Improving the stoichiometry of RF-sputtered amorphous alumina thin films by thermal annealing
  14. Assessment on the contact factors of a sandwich soft finger model – An experimental investigation
  15. Reducing debinding time in thick components fabricated by powder injection molding
  16. Short Communications
  17. Rapid synthesis of Ag nanoparticles and Ag@SiO2 core–shells
  18. Electrical conductivity of bismuth doped dysprosia stabilized zirconia as an electrolyte material for SOFC
  19. People
  20. Prof. Dr.-Ing. Lorenz Singheiser on the occasion of his 65th birthday
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https://doi.org/10.3139/146.111201
Keywords for this article
Slag; Phase equilibria; ‘Cu2O’–‘Fe2O3’–MgO–SiO2; Liquidus

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. Thermodynamic description of the Ti–O system
  5. Influence of MgO on the phase equilibria in the CuOx–FeOy–MgO–SiO2 system in equilibrium with copper alloy – Part I: methodology and liquidus in the tridymite primary phase field
  6. Experimental phase diagram of the V–Si–Ho ternary system
  7. Experimental study of the phase relationships in the Al-rich corner of the Al–Si–Fe–Cr quaternary system at 700 °C
  8. Effect of quench–ageing treatment on the microstructure and properties of Zn-15Al-3Cu alloy
  9. Grain growth and thermal stability in nanocrystalline Fe–B alloys prepared by melt spinning
  10. Microatmosphere sintering of Fe-3.2Mn-1.5Si-0.5C steel in flowing technical nitrogen
  11. Structural, thermal and optical studies of nanocomposite powder NiSb + Sb produced by mechanical alloying
  12. Effect of Mo/B atomic ratio on the properties of Mo2NiB2-based cermets
  13. Improving the stoichiometry of RF-sputtered amorphous alumina thin films by thermal annealing
  14. Assessment on the contact factors of a sandwich soft finger model – An experimental investigation
  15. Reducing debinding time in thick components fabricated by powder injection molding
  16. Short Communications
  17. Rapid synthesis of Ag nanoparticles and Ag@SiO2 core–shells
  18. Electrical conductivity of bismuth doped dysprosia stabilized zirconia as an electrolyte material for SOFC
  19. People
  20. Prof. Dr.-Ing. Lorenz Singheiser on the occasion of his 65th birthday
  21. DGM News
  22. DGM News
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