Silver - Aluminium - Sulfur

Hans Leo Lukas

Introduction

Ternary phases of the compositions AgAlS₂ [53Hah], AgAl₅S₈ [61Fla] and Ag₉AlS₆ [81Gui] have been found. At pressures above 2.5 GPa, AgAlS₂ transforms into another modification [74Ran] which can be retained as a metastable phase at atmospheric pressure below 250°C. The pseudobinary system Ag₂S-Al₂S₃, which contains the three ternary phases, was established by DTA [81Gui].