Abstract
Thermophysical properties of equilibrium and supercooled liquid iridium were measured using noncontact diagnostic techniques in an electrostatic levitator. Over the 2300–3000 K temperature range, the density can be expressed as ρ (T)=19.5×103 − 0.85(T− Tm) (kg·m−3) with Tm=2719 K. The volume expansion coefficient is given by 4.4 × 10−5 K−1. In addition, the surface tension can be expressed as γ (T)=2.23 × 103 − 0.17(T−Tm)(10−3N·m−1) over the 2373–2833 K span and the viscosity as η(T)=1.85 exp [3.0× 104/(RT)](10−3Pa·s) over the same temperature range.
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Ishikawa, T., Paradis, P.F., Fujii, R. et al. Thermophysical Property Measurements of Liquid and Supercooled Iridium by Containerless Methods. Int J Thermophys 26, 893–904 (2005). https://doi.org/10.1007/s10765-005-5585-3
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DOI: https://doi.org/10.1007/s10765-005-5585-3