Phase Equilibria in Cu-As(Sb,Bi)-O Systems under Conditions of the Existence of a Copper-Based Alloy

摘要

Solubility surfaces of components in metal melts for the Cu-As-O, Cu-Sb-O, and Cu-Bi-O systems in the range t = 1100-1300°C and high-temperature fragments of phase diagrams of oxide systems Cu_2O-R_2O_3 (R is As, Sb, Bi) are constructed based on thermodynamic calculations. Phase equilibria in the Cu-Sb-O and Cu-Bi-O systems are investigated experimentally. The results can be used to analyze the production processes of copper and copper-based alloys.