Abstract
A dynamic technique based on the propagation of a plane heat pulse in a finite medium was developed to measure the thermophysical properties of dielectric materials under pressure. The temporal evolution of the temperature field established within a flat plate specimen were measured using a computer controlled data acquisition facility. The geometry of the capsule was optimised to eliminate boundary effects and the solution to the heat differential equation for this particular configuration was then fitted to the experimental data to obtain the thermal conductivity and thermal diffusivity of the material. Experimental results for CsBr are reported up to 4 GPa and compared with the values predicted by the Liebfried-Schlomann model.
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