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Thermal conductivity of solid parahydrogen with methane admixtures

The thermal conductivity of solid parahydrogen crystal with methane admixtures has been measured in the temperature range 1.5 to 8 K. Solid samples were grown from the gas mixture at 13 K. Concentration of CH₄ admixture molecules in the gas varied from 5 to 570 ppm. A very broad maximum of thermal c...

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Main Authors:	Krivchikov, A.I., Sumarokov, V.V., Mucha, J., Stachowiak, P., Jezowski, A., Korolyuk, O.A.
Format:	Article
Language:	English
Published:	Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2003
Series:	Физика низких температур
Subjects:	3-й Международный семинар по физике низких температур в условиях микрогравитации
Online Access:	http://dspace.nbuv.gov.ua/handle/123456789/128871
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id	irk-123456789-128871
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spelling	irk-123456789-1288712018-01-15T03:04:00Z Thermal conductivity of solid parahydrogen with methane admixtures Krivchikov, A.I. Sumarokov, V.V. Mucha, J. Stachowiak, P. Jezowski, A. Korolyuk, O.A. 3-й Международный семинар по физике низких температур в условиях микрогравитации The thermal conductivity of solid parahydrogen crystal with methane admixtures has been measured in the temperature range 1.5 to 8 K. Solid samples were grown from the gas mixture at 13 K. Concentration of CH₄ admixture molecules in the gas varied from 5 to 570 ppm. A very broad maximum of thermal conductivity with absolute value of about 110 W/(m×K) is observed at 2.6 K. The data are interpreted by Callaway model considering phonons resonant scattering on quasi-local vibrations of CH₄ molecules, phonon-grain boundary and phonon-phonon scattering processes. The increase of grain boundary scattering leads to the decrease of the maximum broadening. The analysis shows that the solid mixture of p-H₂ and CH₄ is a heterogeneous solution for CH₄ concentration higher than 0.1 ppm. 2003 Article Thermal conductivity of solid parahydrogen with methane admixtures / A.I. Krivchikov, V.V. Sumarokov, J. Mucha, P. Stachowiak, A. Jezowski, O.A. Korolyuk // Физика низких температур. — 2003. — Т. 29, № 6. — С. 706-709. — Бібліогр.: 18 назв. — англ. 0132-6414 PACS: 66.70.+f, 67.80.Gb, 67.80.Mg http://dspace.nbuv.gov.ua/handle/123456789/128871 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
institution	Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection	DSpace DC
language	English
topic	3-й Международный семинар по физике низких температур в условиях микрогравитации 3-й Международный семинар по физике низких температур в условиях микрогравитации
spellingShingle	3-й Международный семинар по физике низких температур в условиях микрогравитации 3-й Международный семинар по физике низких температур в условиях микрогравитации Krivchikov, A.I. Sumarokov, V.V. Mucha, J. Stachowiak, P. Jezowski, A. Korolyuk, O.A. Thermal conductivity of solid parahydrogen with methane admixtures Физика низких температур
description	The thermal conductivity of solid parahydrogen crystal with methane admixtures has been measured in the temperature range 1.5 to 8 K. Solid samples were grown from the gas mixture at 13 K. Concentration of CH₄ admixture molecules in the gas varied from 5 to 570 ppm. A very broad maximum of thermal conductivity with absolute value of about 110 W/(m×K) is observed at 2.6 K. The data are interpreted by Callaway model considering phonons resonant scattering on quasi-local vibrations of CH₄ molecules, phonon-grain boundary and phonon-phonon scattering processes. The increase of grain boundary scattering leads to the decrease of the maximum broadening. The analysis shows that the solid mixture of p-H₂ and CH₄ is a heterogeneous solution for CH₄ concentration higher than 0.1 ppm.
format	Article
author	Krivchikov, A.I. Sumarokov, V.V. Mucha, J. Stachowiak, P. Jezowski, A. Korolyuk, O.A.
author_facet	Krivchikov, A.I. Sumarokov, V.V. Mucha, J. Stachowiak, P. Jezowski, A. Korolyuk, O.A.
author_sort	Krivchikov, A.I.
title	Thermal conductivity of solid parahydrogen with methane admixtures
title_short	Thermal conductivity of solid parahydrogen with methane admixtures
title_full	Thermal conductivity of solid parahydrogen with methane admixtures
title_fullStr	Thermal conductivity of solid parahydrogen with methane admixtures
title_full_unstemmed	Thermal conductivity of solid parahydrogen with methane admixtures
title_sort	thermal conductivity of solid parahydrogen with methane admixtures
publisher	Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate	2003
topic_facet	3-й Международный семинар по физике низких температур в условиях микрогравитации
url	http://dspace.nbuv.gov.ua/handle/123456789/128871
citation_txt	Thermal conductivity of solid parahydrogen with methane admixtures / A.I. Krivchikov, V.V. Sumarokov, J. Mucha, P. Stachowiak, A. Jezowski, O.A. Korolyuk // Физика низких температур. — 2003. — Т. 29, № 6. — С. 706-709. — Бібліогр.: 18 назв. — англ.
series	Физика низких температур
work_keys_str_mv	AT krivchikovai thermalconductivityofsolidparahydrogenwithmethaneadmixtures AT sumarokovvv thermalconductivityofsolidparahydrogenwithmethaneadmixtures AT muchaj thermalconductivityofsolidparahydrogenwithmethaneadmixtures AT stachowiakp thermalconductivityofsolidparahydrogenwithmethaneadmixtures AT jezowskia thermalconductivityofsolidparahydrogenwithmethaneadmixtures AT korolyukoa thermalconductivityofsolidparahydrogenwithmethaneadmixtures
first_indexed	2023-10-18T20:56:20Z
last_indexed	2023-10-18T20:56:20Z
_version_	1796151501748436992

Thermal conductivity of solid parahydrogen with methane admixtures

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