Pressure-Induced Reverse Structural Transition of Calcite at Temperatures up to 873 K and Pressures up to 19.7 GPa

Structure of liquid iron at pressures up to 58 GPa.

We report structural data on liquid iron at pressures up to 58 GPa measured by x-ray scattering in a laser heated diamond anvil cell. The determined structure factor preserves essentially the same shape along the melting curve. Our data demonstrate that liquid iron at high pressures is a close-packed hard-sphere liquid. The results place important constraints on the thermodynamic and transport ...

Compressed Liquid Densities for Binary Mixtures at Temperatures from 280- 440K at Pressures up to 200 MPa

A method for predicting liquid densities of binary mixtures from heat of vaporization and liquid densityat boiling point temperature (ΔHvap and n b ρ ) as scaling constants, is presented. B2(T) follows a promisingcorresponding-states principle. Calculation of α(T) and b(T), the two other temperature-dependentconstants of the equation of state, are made possible by scaling. As a result ΔHvap and...

High pressure structural studies on Nb5Si3 up to 26.2 GPa

Test of the Einstein-Debye relation in supercooled dibutylphthalate at pressures up to 1.4 GPa.

Broadband dielectric measurements were carried out on di-n-butyl phthalate (DBP) under isothermal conditions at hydrostatic pressures up to 1.6 GPa. A comparison of the dielectric relaxation times with the viscosity revealed that no breakdown of the Einstein-Debye relation is induced by high compression. This absence of any decoupling is attributed to the weak intermolecular cooperativity of DB...

Structural transition and volume compression of CeBi up to 20 GPa

2014 The compression curve of CeBi up to 20 GPa was measured at room temperature by x-ray diffraction in a diamond anvil cell. Below 13 GPa, CeBi maintains its cubic structure of the NaCl-type with a bulk modulus B0 = 49.6 GPa, smaller than that reported for LaBi (B0 = 55 GPa). This anomalous lowering is attributed to a continuous increase of the cerium valence. At P = 13 GPa, CeBi undergoes a ...