Solid-State Phase Equilibria of the V-Si-Gd System at 973 K (700 °C)

The solid-state phase equilibria of the V-Si-Gd ternary system at 973 K (700 °C) were experimentally evaluated. The existence of nine binary compounds, namely, V₃Si, V₅Si₃, V₆Si₅, VSi₂, Gd₅Si₃, Gd₅Si₄, GdSi, GdSi_1.67, and GdSi_2‑x, was confirmed, and no ternary compound was found at 973 K (700 °C). The homogeneity ranges of V₃Si and GdSi_2‑x were investigated. It is worth mentioning that the Gd₃Si₄ compound was discovered through changing the experimental conditions, and its crystal structure was discussed.