Precipitation of (PdAg)3In in Ag-25%Pd-In alloys and the partial phase diagram of ternary Ag-Pd-In alloys

Abstract

A study was carried out to determine the partial phase diagram for the system Ag-25 wt % Pd-y wt% In with y less than or equal to 8 by X-ray powder diffraction and differential thermal analysis. The liquidus and solidus temperatures decreased with increasing indium content up to 8 wt % In for a given 25 wt % Pd. The solvus curve of gamma phase identified as (PdxAg1-x)(3) In was determined by the parametric method and the temperature dependence of In-solubility in Ag-25 wt % Pd was very strong above 900 degrees C. (C) 2000 Kluwer Academic Publishers.