Subsolidus phase equilibria of the CuO – SrO – ZnO pseudoternary system in air at 900 °C

Abstract

The subsolidus phase equilibria of the CuO-SrO-ZnO system were determined at 900 °C in air. The pseudoternary section does not contain ternary oxide phases but is made of 5 three-phase regions and 2 narrow two-phase regions linked to a Sr 14 Cu 24-x Zn x O 41-y solid solution. The maximum solubility of Zn in this phase is limited to x ≈ 0.1, but this low doping level results in a significant decrease of the electrical resistivity by about one order of magnitude compared to the undoped compound. The other binary oxide phases SrZnO 2 , Sr 2 CuO 3 , and SrCuO 2 do not form solid solutions extending into the ternary system. SrZnO 2 was found to decompose upon contact with ambient air.

Adjusting the Effects of Cr3+ Doping on Structural, Dielectric, Antimicrobial Properties of Delafossite SrCuO2 Nanoparticle

“…Lately, the utilization of powders derived from SrO-CuO has gained significant importance in various cutting-edge technological domains, encompassing chemistry, biology, and electronics. [1][2][3] These applications involve creating various ceramics using SrO-CuO and improving other ceramics through refining processes. Moreover, due to its ability to conduct electricity, SrO is extensively utilized as a cathode material in solid oxide fuel cells and systems for generating oxygen.…”