Phases in the subsolidus area of the system CuO-V 2O 5-Fe 2O 3

Abstract

The phase equilibria in the solid state in the system FeVO4-Cu3V2O8 and FeVO4-CuO have been determined. Based on the obtained DTA and XRD analysis results and some additional research, a phase diagram in the whole subsolidus area of the system CuO-V 2O 5-Fe 2O 3 has been worked out. Eighteen subsidiary subsystems can be distinguished in this ternary system.Basic properties of the obtained phases with howardevansite-and lyonsite-type structure have been investigated by DTA, IR, and SEM methods. © Akadémiai Kiadó, Budapest, Hungary 2011.