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.
Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements / Ayrinhac, S.; Gauthier, M.; Bove, L. E.; Morand, M.; Le Marchand, G.; Bergame, F.; Philippe, J.; Decremps, F.. - In: THE JOURNAL OF CHEMICAL PHYSICS. - ISSN 0021-9606. - ELETTRONICO. - 140:24(2014), p. 244201. [10.1063/1.4882695]
Equation of state of liquid mercury to 520 K and 7 GPa from acoustic velocity measurements
Bove, L. E.;
2014
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
