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系统测量了液态Ｈｇ－Ｎａ及Ｔｅ－Ｓｅ合金的电阻率和热电势，发现液态Ｈｇ－Ｎａ合金的电阻率随成分变化虽有反常行为，但没有金属－非金属转变；而液态Ｔｅ－Ｓｅ合金的电阻率随成分变化并无反常出现，但当Ｓｅ成分大于３０％（ａｔ．）时，出现金属一非金属转变．本文考虑了液态Ｈｇ－Ｎａ合金中有Ｈｇ２Ｎａ瞬时短程序形成的因素，采用Ｆａｂｅｒ－Ｚｉｍａｎ理论，计算了液态Ｈｇ－Ｎａ合金的电阻率，计算结果与上述实验测量值符合很好．同时也定性解释了液态Ｈｇ－Ｎａ合金热电势极小值及液态Ｔｅ－Ｓｅ合金在大于３０％（ａｔ．）Ｓｅ时出现金属－非金属转变的原因．
The resistivity and thermopower of liquid Hg-Na and Te-Se alloys were measured. It was found that the resistivity of liquid Hg-Na alloy changed abnormally with the composition, but there was no metal-nonmetal transition. However, the liquid Te-Se alloy The resistivity does not abnormally change with the composition, but when the content of Se is more than 30% (at.), Metal-metalloid transition occurs. In this paper, we consider the formation of Hg2Na instantaneous short program in liquid Hg-Na alloy. The resistivity of liquid Hg-Na alloy is calculated by Faber-Ziman theory. The calculated results are in good agreement with the above experimental values. It also qualitatively explains the reason why the thermoelectric potential of the liquid Hg-Na alloy and the metal Te-Se alloy are more than 30% (at.) Se.