Abstract
This study experimentally determines the liquidus projection and phase equilibria isothermal section at 773.2 K (500°C) of the Ag-In-Zn ternary system. There are ten primary solidification phases of the Ag-In-Zn ternary system. In addition to the (Ag) (In) and (Zn) phases, there are seven binary compounds: β-(Ag 3 In), ζ-(Ag 3 In), γ-(Ag 9 In 4 ), AgIn 2 , β-(AgZn), γ-(Ag 5 Zn 8 ), and ε-(AgZn 3 ). No ternary compounds were found. Among all these phases, the γ-(Ag 9 In 4 ) primary solidification phase has the largest compositional regime. Five invariant reactions, two Class I reactions, two Class II reactions, and one Class III reaction, are determined by thermal analysis in this study. The reactions with the lowest and highest reaction temperatures are Liquid = (In) + AgIn 2 + γ-(Ag 5 Zn 8 ) at 413.5 K (140.3°C) and Liquid + (Ag) + β-(AgZn) = ζ-(Ag 3 In) at 964.9 K (691.7°C), respectively. In the isothermal section at 773.2 K, there are six tie-triangles: (Ag) + ζ-(Ag 3 In) + β-(AgZn), ζ-(Ag 3 In) + γ-(Ag 9 In 4 ) + β-(AgZn), ζ-(Ag 3 In) + γ-(Ag 9 In 4 ) + Liquid, γ-(Ag 9 In 4 ) + β-(AgZn) + Liquid, β-(AgZn) + γ -(Ag 5 Zn 8 ) + Liquid, and γ-(Ag 5 Zn 8 ) + ε-(AgZn 3 ) + Liquid.