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Improved thermophysical measurements on solid and liquid tantalum

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Abstract

Wire-shaped tantalum samples are resistively pulse heated as part of a coaxially constructed capacitor discharge circuit. With heating rates of more than 109 K · s−1, temperatures up to about 10,000 K are reached. The tantalum wire is contained, with water as the surrounding medium, in a high-pressure vessel with sapphire windows and a maximum pressure capability of 5 kbar. Time correlated measurements of the current through the wire and the voltage drop across it, as well as surface radiation and wire expansion, were performed to permit the determination of thermophysical properties of the solid and liquid tantalum.

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Authors and Affiliations

  1. Institut für Experimentalphysik, Technische Universität Graz, Petersgasse 16, 8010, Graz, Austria

    H. Jäger, W. Neff & G. Pottlacher

Authors
  1. H. Jäger
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  2. W. Neff
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  3. G. Pottlacher
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Jäger, H., Neff, W. & Pottlacher, G. Improved thermophysical measurements on solid and liquid tantalum. Int J Thermophys 13, 83–93 (1992). https://doi.org/10.1007/BF00503358

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