Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements

Ultrafast acoustics measurements on liquid mercury have been performed at high pressure and temperature in a diamond anvil cell using picosecond acoustic interferometry. We extract the density of mercury from adiabatic sound velocities using a numerical iterative procedure. We also report the pressu...

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Veröffentlicht in:The Journal of chemical physics 2014-06, Vol.140 (24), p.244201-244201
Hauptverfasser: Ayrinhac, S, Gauthier, M, Bove, L E, Morand, M, Le Marchand, G, Bergame, F, Philippe, J, Decremps, F
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Sprache:eng
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Zusammenfassung:Ultrafast acoustics measurements on liquid mercury have been performed at high pressure and temperature in a diamond anvil cell using picosecond acoustic interferometry. We extract the density of mercury from adiabatic sound velocities using a numerical iterative procedure. We also report the pressure and temperature dependence of the thermal expansion, isothermal and adiabatic compressibility, bulk modulus, and pressure derivative of the latter up to 7 GPa and 520 K. We finally show that the sound velocity follows a scaling law as a function of density in the overall measured metallic state.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.4882695