Silver - Gold - Lead

Alan Prince

Introduction

The thermodynamic properties of the liquid Ag-Au-Pb system were determined by [69Hag]. This paper contains measured liquidus temperatures for seven alloys and a 927°C liquidus isotherm derived from the electromotive force data (Fig. 3 - indicated as 927 cal.). The reaction of a 1 μm thin Ag-Au film of composition 80 at.% Ag - 20 at.% Au with an overlayed 500 nm Pb film was studied by [75Tu] at room temperature and at 200°C for times up to 2 weeks and 1 week respectively. No reaction was detected at room temperature. At 200°C a small amount of AuPb₂ was formed after annealing for 2 h but continuation of the annealing to 1 week did not increase the proportion of AuPb₂. No AuPb₃ was detected. The major work on the phase equilibria is unpublished [70Bha]. The authors used thermal analys...