Thermal conductivity of tetrahydrofuran hydrate
A. I. Krivchikova, V.G. Manzheliia, O.A. Korolyuka, B.Ya. Gorodilova,, O.O. Romantsovaa (Institute for Low Temperature Physics, Engineering of, the NAS of Ukraine)
TL;DR
This study measures the thermal conductivity of tetrahydrofuran hydrate across 2-220 K, revealing amorphous-like behavior and phonon mean free path characteristics at higher temperatures.
Contribution
First measurement of tetrahydrofuran hydrate's thermal conductivity over a wide temperature range, highlighting its amorphous thermal transport properties.
Findings
Thermal conductivity exhibits amorphous-like temperature dependence.
Above 100 K, phonon mean free path is smaller than lattice parameter.
Phonon mean free path becomes temperature-independent above 100 K.
Abstract
The thermal conductivity of tetrahydrofuran hydrate has been measured in the temperature region 2 – 220 K by the steady-state potentiometric method. The temperature dependence of the thermal conductivity exhibits behavior typical of amorphous substances. It is shown that above 100 K the mean free path of the phonons is considerably smaller than the lattice parameter and is no longer dependent on temperature.
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Taxonomy
TopicsMethane Hydrates and Related Phenomena · Solid-state spectroscopy and crystallography · Advanced NMR Techniques and Applications