The 600°C and 800°C isothermal sections of the Zn–V–Sb system

Abstract

Abstract Phase relations in the Zn–V–Sb ternary system have been studied experimentally for the whole composition range for two temperatures, 600°C and 800°C, using scanning electron microscopy coupled with energy-dispersive spectrometry and X-ray diffraction. The ternary compound VZnSb, mentioned in the literature, still exists at 600°C, but disappears at 800°C. Moreover, the experimental results indicate that eight tri-phase regions could be confirmed in the system at 600°C, and four tri-phase regions exist in the 800°C isothermal section. The maximum solubility of Zn in V3Sb2 and V3Sb is up to 14.3 at.% and 3.6 at.% at 600°C, and 6.2 at.% and 2.7 at.% at 800°C, respectively.