Thermal conductivity of Pb-Na and Pb-Bi-Na alloys in the temperature range of 350–800 °C

The article presents the results of measurements of thermal conductivity coefficients of Pb-Na with the content of the latter of 20 at. % and eutectic (Pb-Bi)-Na (20 at. %) alloys at temperatures of 350–800 °C. The experimental methodology is described and the temperature differences in the heat-conducting sublayer of fuel cells of the studied alloys are estimated.