Non-contact Thermophysical Property Measurements of Liquid and Supercooled Platinum
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概要
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Thermophysical properties of equilibrium and supercooled liquid platinum were measured using non-contact diagnostic techniques with an electrostatic levitator. Over the 1691 to 2216 K temperature range, the density can be expressed as $ \rho(T)=19.2 \times 10^{3}-0.96(T-T_{\text{m}})$ (kg$ \cdot $m-3) with $T_{\text{m}}=2041$ K, yielding a volume expansion coefficient of $5.0 \times 10^{-5}$ K-1. In addition, the surface tension can be expressed as $ \gamma(T)=1.80 \times 10^{3}-0.14(T-T_{\text{m}})$ ($10^{-3}$ N$ \cdot $m-1) and the viscosity as $ \eta(T)=0.25 \exp[4.99 \times 10^{4}/(\text{R}T)]$ ($10^{-3}$ Pa$ \cdot $s) over the 1743 to 2313 K temperature range.
- 2006-03-15
著者
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Ishikawa Takehiko
Japan Aerospace Exploration Agency
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KOIKE Noriyuki
Chiba Institute of Technology
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PARADIS Paul-FRANCOIS
Japan Aerospace Exploration Agency
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Paradis Paul-François
Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
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Ishikawa Takehiko
Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
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