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 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. (C) 2014 AIP Publishing LLC.


Published in:
Journal Of Chemical Physics, 140, 24
Year:
2014
Publisher:
Melville, American Institute of Physics
ISSN:
0021-9606
Laboratories:




 Record created 2014-08-29, last modified 2018-09-13

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