Electrical conductivity of tungsten near its critical point

摘要

Electrical conductivity of fluid tungsten under subcritical and supercritical conditions has been measured. Fast wire explosions are used to create the corresponding states. The heavy;particle density varies from 4x10(21) to 6x10(22) cm(-3), the temperature from 3700 up to 13 000 K. The measured electrical conductivity mainly depends on the averaged density and seems to be independent of the temperature within the experimental errors. The measurements are compared with theoretical models.