ELECTRICAL RESISTIVITIES OF LIQUID TRANSITION METALS

A method is described which permits direct measurement of the electrical resistivity, ρ, of liquid metals to temperatures above 1900°C. The method is applied to the measurement of ρ and dρ/dT for liquid Fe and liquid Pt. For liquid Fe we find ρ = 137.6 ± 1.0 and dρ/dT = .018 ± .003 ; for liquid Pt the results are ρ = 82.6 ± 2.0 and dρ/dT = 0.00 ± .01. The units are µΩ-cm and µΩ-cm/°C, respectively