The Zn-Rich Corner of the Zn-Al-V-Sb Quaternary System at 450 and 600 °C

Abstract

Phase relations in the Zn-Al-V-Sb quaternary system with Zn fixed at 93 at.% have been determined experimentally in the entire composition range for two temperatures, 450 and 600°C, using scanning electron microscopy coupled with energy dispersive x-ray spectroscopy and x-ray diffraction. From the experimental results obtained, four four-phase regions and two four-phase regions have been confirmed in the isothermal sections at 450 and 600°C, respectively. The (L + VZnSb) field is coexistent with all other phase fields in the section at 450°C. The solubility of Al in VZnSb phase is up to 2.1 at.%. It dissolves up to 1.5 and 2.2 at.% in the V 3 Sb phase at 450 and 600°C, respectively. The V solubility in the AlSb phase is very limited. Moreover, no new ternary and quaternary compounds are detected in the present study.