Au--In--Pb system: the Au--In2--Pb portion

The Au-In-Pb system was investigated in the AuIn-In-Pb portion of the system. Pb-AuIn and Pb-AuIn2 quasibinary systems were found: the first, consisting of a eutectic and a monotectic reaction and the second, a eutectic with an inflection in the liquidus. The chief source of information was differential thermal analyses and verification by metallography, x-ray diffraction and microprobe analyses. Four isothermal reactions were found. Verification of these events and the isopleth from 50-50 wt percent Pb-In, a typical solder, to approximately 47 wt percent Au are given