Low Temperature Physics: 41, 435 (2015); https://doi.org/10.1063/1.4922093
Fizika Nizkikh Temperatur: Volume 41, Number 6 (June 2015), p. 559-563    ( to contents , go back )

Heat transfer in Ar and N2 doped solid CO

T.V. Romanova, P. Stachowiak, and A. Jeżowski

Institute for Low Temperature and Structure Research, Polish Academy of Sciences P.O. Box 1410, 50-950 Wrocław, Poland
E-mail: T.Romanova@int.pan.wroc.pl
pos Анотація:

Received February 10, 2015

Abstract

The measurements of thermal conductivity coefficient of a solid carbon monoxide crystal containing argon and nitrogen admixtures at different concentrations (1.5, 3, 6, 12.5, 25% for N2 and 0.5, 1, 1.25, 2, 4% for Ar) were performed in the temperature range from 1.5 to 40 K by steady-state heat flow method. For analysis of the experimental data the Callaway method in the framework of the Debye model was used. The contribution of various mechanisms of phonon scattering, including scattering by disordered dipoles of the CO matrix, to the thermal conductivity of CO–N2 and CO–Ar solid solutions were taken into account.

PACS: 44.10.+i Heat conduction;
PACS: 63.20–e Phonons in crystal lattice;
PACS: 63.20.Mt Phonon-defect interactions;
PACS: 65.40.–b Thermal properties of crystalline solids.

Key words: thermal conductivity, molecular crystal, phonon scattering, carbon monoxide crystals, low temperatures, relaxation time.

Published online: April 23, 2015

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