Abstract
Using a laser flash method, the thermal conductivity (λ) of Pb and eutectic alloy Bi-Pb (55.2 wt%Bi) melts is measured in the temperature range from the melting point to 1300 K with 3.2–6.0 % uncertainty. The results are compared with the data of other authors. Based on the measurements, the thermal diffusivity (a) and the Lorenz number of melts are calculated. Tables of recommended data for a and λ along with estimated errors are drawn up.
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