Measurement of electrical conductivity of Pb–Bi alloys in the melting–solidification region

The electrical conductivity, σ ( T ) , of Pb–Bi alloys of eutectic and near eutectic compositions was investigated in the melting–solidification temperature region. The revealed discrepancies between the heating and cooling σ ( T ) curves as well as a hysteresis observed in course of heating–cooling cycles suggest a metastable microheterogeneous structure of the Pb–Bi melts.