Experimental study of the phase diagram of the Ag–Au–Sb ternary system

The phase diagram of the Ag–Au–Sb ternary system has been assessed using X-ray diffraction analysis, electron-probe micro-analysis and differential scanning calorimetry. Four isopletic sections were studied: 80, 70 and 10 at.% Ag and 10 at.% Au. Three ternary invariant reactions were noted.This study is part of an international program, COST 531, about lead-free soldering materials.