Heat transfer in solid methyl alcohol
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Heat transfer in solid methyl alcohol
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| Creator |
Korolyuk, O.A.
Krivchikov, A.I. Sharapova, I.V. Romantsova, O.O. |
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| Subject |
7th International Conference on Cryocrystals and Quantum Crystals
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| Description |
Thermal conductivity coefficient к(T) of two crystalline (orientationally-ordered and orientationally-disordered) phases of pure methanol (at temperatures from 2 K to Tm , Tm is the melting temperature), CH₃OH + 6.6 % H₂O glass from 2 K to Tg , Tg is the glass transition temperature and a supercooled liquid from Tg to 120 K has been measured under equilibrium vapor pressure. The dependence к(T) is described approximately as a sum of two contributions: кI(T) describing heat transport by acoustic phonons and кII(T) —by localized high-frequency excitations. The temperature dependences of the thermal conductivity of primary monoatomic alcohols CH₃OH, C₂H₅OH, and C₃H₇OH in the glass state have been compared. Different mechanisms of phonon scattering in the crystalline phases and glass have been analyzed. The кII(T) has been calculated within the Cahill–Pohl model. There is an anomaly of the thermal conductivity of the glass state near Tg (a smeared minimum in the к(T) — curve).
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| Date |
2017-05-19T19:26:01Z
2017-05-19T19:26:01Z 2009 |
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| Type |
Article
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| Identifier |
Heat transfer in solid methyl alcohol / O.A. Korolyuk, A.I. Krivchikov, I.V. Sharapova, O.O. Romantsova // Физика низких температур. — 2009. — Т. 35, № 4. — С. 380-384. — Бібліогр.: 34 назв. — англ.
0132-6414 PACS: 66.70.–f, 63.20.–e, 63.50.–x http://dspace.nbuv.gov.ua/handle/123456789/117111 |
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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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