Abstract
We measured the thermal conductivity λ of Polycarbonat (PC) in the temperature range from 3 K to 150 K under application of hydrostatic pressure up to 1.3 GPa. A strong influence of pressure on λ was observed over the entire temperature range. An additional measurement of the pressure dependence of density showed that the density of PC increases appreciably with pressure. The thermal conductivity data were thus corrected considering the changes of density. The corrected data show an increase of λ with pressure only in the plateau region of thermal conductivity. Similar results were measured for vitreous silica [1] and epoxy resin [2], where the data of vitreous silica show an opposite behaviour of λ with increasing pressure.
Published Version
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