Thermal and electrical conductivity of Sn-Ag-In alloys

► The variations of thermal conductivity with temperature for Sn-[x] wt.% Ag-2 wt.% In, x=4,20, 40, 60 and 71 alloys were measured with a radial heat flow apparatus. ► The variations of electrical conductivity of solid phases versus temperature for the same alloys were determined from the Wiedemann-Franz law by using the measured values of thermal conductivity. ► The thermal and electrical conductivity of Sn-[x] wt.% Ag-2 wt.% In, x=4,20, 40, 60 and 71 alloys linearly decrease with increasing the temperature and composition of Ag.