Thermal conductivity of solid parahydrogen with methane admixtures
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Thermal conductivity of solid parahydrogen with methane admixtures
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| Creator |
Krivchikov, A.I.
Sumarokov, V.V. Mucha, J. Stachowiak, P. Jezowski, A. Korolyuk, O.A. |
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| Subject |
3-й Международный семинар по физике низких температур в условиях микрогравитации
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| 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.
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| Date |
2018-01-14T11:04:15Z
2018-01-14T11:04:15Z 2003 |
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| Type |
Article
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| Identifier |
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 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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