Anisotropy of synthetic quartz electrical conductivity at high pressure and temperature

Thermal Conductivity and Diffusivity. of Climax Stock Quartz Monzonite at High Pressure and Temperature

Measurements of thermal conductivity and thermal diffusivity have been made on two samples of Climax Stock quartz monzonite at pressures between 3 and 50 MPa and temperatures between 300 and 523 K. Following those measurements, the apparatus was calibrated with respect to the thermal conductivity measurement using a reference standard of fused silica. Corrected thermal conductivity of the rock ...

High pressure high temperature cell for electrical conductivity measurements of Earth-type materials

AbstructA high pressure, high temperature cell has been constructed and used to determine the temperature dependence of the electrical conductivity of various geological materials at a frequency of 60 Hz. Test conditions in the cell approximate an in situ environment by means of a variable uniaxial confining pressure and a separately variable pore pressure. A wide array of constituents of typic...

Electrical conductivity of wadsleyite at high temperatures and high pressures

Thermal conductivity of solid argon at high pressure and high temperature: a molecular dynamics study.

The thermal conductivity of solid argon at high-pressure (up to 50 GPa) and high-temperature (up to 2000 K) has been calculated by equilibrium molecular dynamics simulations using the Green-Kubo formalism and an exponential-6 interatomic potential. A simple empirical expression is given for its pressure and temperature dependence. The results are compared with predictions based on kinetic theor...

Multifunctional probes for high-throughput measurement of Seebeck coefficient and electrical conductivity at room temperature.

An apparatus capable of rapid measurement of the Seebeck coefficient and electrical resistivity at room temperature is reported. The novel aspect of this apparatus is the use of 4 multifunctional probes that comprise a junction of two conductors at the tip and serve as both thermocouples and electrical contacts. In addition, one of the probes has a built-in heater that can establish a temperatu...