FINAL REDOXIDATION OF COPPER AND BRONZE ALLOYS THERMODYNAMIC AND KINETIC STUDY
Abstract
This thesis investigates the final redoxidation of copper and bronze alloys through a thermodynamic and kinetic perspective. Using equilibrium calculations, Ellingham diagrams, and mass transfer modeling, the research evaluates oxygen pickup mechanisms in molten alloys. Results show that reoxidation significantly affects the purity and mechanical properties of alloys.
References
[1] J. E. Andersen and A. E. Turner, “Oxygen solubility and oxidation kinetics in liquid copper alloy systems,” J. Mater. Sci., vol. 47, no. 16, pp. 5953–5964, 2012.
[2] P. L. Smith and Y. Zhao, “Thermodynamic stability of oxides in copper–bronze systems,” Metall. Mater. Trans. B, vol. 46, no. 8, pp. 2003–2012, 2015.
[3] D. Kim and W. Lee, “Modeling of oxygen absorption kinetics in copper alloys using diffusion-limited approaches,” J. Thermal Anal. Calorim., vol. 132, no. 3, pp. 1753–1764, 2018.
[4] R. Novak and R. Creese, “Comparative study of oxygen uptake in silicon, tin, and aluminum bronzes,” J. Alloys Compd., vol. 785, pp. 603–610, 2019.
[5] M. Patel and R. Singh, “Time-resolved oxygen pickup and oxide inclusion formation during air exposure of molten copper alloys,” Metall. Mater. Trans. B, vol. 51, no. 10, pp. 4073–4082, 2020.
[6] H. Gonzalez and J. Martinez, “Integration of thermodynamic and kinetic modeling for prediction of redox behavior in copper refining,” Mater. Des., vol. 199, p. 109440, 2021.
