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JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
Volume 45, Issue 3A, Pages 1719-1724Publisher
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/JJAP.45.1719
Keywords
platinum; liquid; density; surface tension; viscosity
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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 169 1 to 22 16 K temperature range, the density can be expressed as p(T) 19.2 x 10(3) - 0.96(T-T-m) (kg(.)m(-3)) with T-m = 2041 K, yielding a volume expansion coefficient of 5.0 x 10(-5) K-1. In addition, the surface tension can be expressed as gamma(T) 1.80 x 10(3) - 0.14(T - T-m) (10(-3) N(.)m(-1)) and the viscosity as eta(T) =0.25exp[4.99 x 10(4)/(RT)] (10(-3) Pa(.)s) over the 1743 to 2313K temperature range.
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