Integrated experimental and thermodynamic modeling study of phase equilibria in the "CuO0.5"–CaO–AlO1.5 system.
Saved in:
| Title: | Integrated experimental and thermodynamic modeling study of phase equilibria in the "CuO |
|---|---|
| Authors: | Khartcyzov, Georgii1 (AUTHOR) g.khartcyzov@uq.edu.au, Shevchenko, Maksym1 (AUTHOR), Nekhoroshev, Evgenii1 (AUTHOR), Jak, Evgueni1 (AUTHOR) |
| Source: | Journal of the American Ceramic Society. Sep2025, Vol. 108 Issue 9, p1-25. 25p. |
| Subjects: | Phase equilibrium, Electron probe microanalysis, Copper, Ternary system, Thermodynamic equilibrium, Copper-tin alloys |
| Abstract: | The phase equilibria in the "CuO0.5"–CaO–AlO1.5 system in equilibrium with Cu metal were investigated as part of the integrated experimental and thermodynamic modeling study of phase equilibria in the Cu–Pb–Zn–Fe–Ca–Si–Al–Mg–O–S–(As, Sn, Sb, Bi, Ag, Au, Ni, Cr, Co, and Na) gas/oxide liquid/matte/speiss/metal/solids system in support of the development and optimization of pyrometallurgical processes. The equilibration and quenching technique, followed by the electron probe X‐ray microanalysis (EPMA) was used in the present study. The liquidus of the "CuO0.5"–CaO–AlO1.5 system in equilibrium with Cu, including primary phase fields of Ca3Al2O6, Ca12Al14O33, CaAl2O4, CaAl4O7, CaAl12O19, corundum (Al2O3), delafossite (CuAlO2), and lime (CaO), as well as the immiscibility gap in the liquidi of these phases were characterized. The thermodynamic model parameters for the CaO–AlO1.5 binary system and the "CuO0.5"–CaO–AlO1.5 ternary systems in equilibrium with Cu metal were reoptimized based on the experimental data obtained. New experimental results, combined with phase equilibria and thermodynamic literature data, were used to derive a self‐consistent set of parameters of the thermodynamic model of all phases in the "CuO0.5"–CaO–AlO1.5 system in equilibrium with Cu metal, in agreement with the major 20‐component system. The predicted phase diagram of the CaO–AlO1.5 and "CuO0.5"–CaO–AlO1.5 systems were presented for the first time. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| Abstract: | The phase equilibria in the "CuO0.5"–CaO–AlO1.5 system in equilibrium with Cu metal were investigated as part of the integrated experimental and thermodynamic modeling study of phase equilibria in the Cu–Pb–Zn–Fe–Ca–Si–Al–Mg–O–S–(As, Sn, Sb, Bi, Ag, Au, Ni, Cr, Co, and Na) gas/oxide liquid/matte/speiss/metal/solids system in support of the development and optimization of pyrometallurgical processes. The equilibration and quenching technique, followed by the electron probe X‐ray microanalysis (EPMA) was used in the present study. The liquidus of the "CuO0.5"–CaO–AlO1.5 system in equilibrium with Cu, including primary phase fields of Ca3Al2O6, Ca12Al14O33, CaAl2O4, CaAl4O7, CaAl12O19, corundum (Al2O3), delafossite (CuAlO2), and lime (CaO), as well as the immiscibility gap in the liquidi of these phases were characterized. The thermodynamic model parameters for the CaO–AlO1.5 binary system and the "CuO0.5"–CaO–AlO1.5 ternary systems in equilibrium with Cu metal were reoptimized based on the experimental data obtained. New experimental results, combined with phase equilibria and thermodynamic literature data, were used to derive a self‐consistent set of parameters of the thermodynamic model of all phases in the "CuO0.5"–CaO–AlO1.5 system in equilibrium with Cu metal, in agreement with the major 20‐component system. The predicted phase diagram of the CaO–AlO1.5 and "CuO0.5"–CaO–AlO1.5 systems were presented for the first time. [ABSTRACT FROM AUTHOR] |
|---|---|
| ISSN: | 00027820 |
| DOI: | 10.1111/jace.20698 |
