Abstract
Wire-shaped iron samples are resistively volume heated as part of a fast capacitor discharge apparatus. Measurements of current through the specimen, voltage across the specimen, radiance temperature, and thermal expansion of the specimen as functions of time allow the determination of specific heat and various dependencies among enthalpy, electrical resistivity, temperature, and density for liquid iron up to 5000 K. High pressures. up to 3800 bar, are used to obtain the liquid state far above the normal boiling point. An estimate of critical-point data for iron is given by using experimental data of the vapor pressure of liquid iron.
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Beutl, M., Pottlacher, G. & Jäger, H. Thermophysical properties of liquid iron. Int J Thermophys 15, 1323–1331 (1994). https://doi.org/10.1007/BF01458840
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DOI: https://doi.org/10.1007/BF01458840