Heat transfer in solid methyl alcohol
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 supercoole...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2009 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/117111 |
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| Zitieren: | 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. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862546380709429248 |
|---|---|
| author | Korolyuk, O.A. Krivchikov, A.I. Sharapova, I.V. Romantsova, O.O. |
| author_facet | Korolyuk, O.A. Krivchikov, A.I. Sharapova, I.V. Romantsova, O.O. |
| citation_txt | 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. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| 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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| first_indexed | 2025-11-25T12:21:14Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-117111 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-11-25T12:21:14Z |
| publishDate | 2009 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Korolyuk, O.A. Krivchikov, A.I. Sharapova, I.V. Romantsova, O.O. 2017-05-19T19:26:01Z 2017-05-19T19:26:01Z 2009 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 https://nasplib.isofts.kiev.ua/handle/123456789/117111 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). The authors are sincerely grateful to B.Ya. Gorodilov,
 Prof. V.G. Manzhelii and Prof. F.J. Bermejo for helpful
 discussions and interest in this study. The investigations
 is made on the competition terms for joint projects of
 NAS of Ukraine and Russian Foundation for Fundamental
 Research (Agreement N 9-2008, Subject: «Collective
 processes in metastable molecular solids»). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур 7th International Conference on Cryocrystals and Quantum Crystals Heat transfer in solid methyl alcohol Article published earlier |
| spellingShingle | Heat transfer in solid methyl alcohol Korolyuk, O.A. Krivchikov, A.I. Sharapova, I.V. Romantsova, O.O. 7th International Conference on Cryocrystals and Quantum Crystals |
| title | Heat transfer in solid methyl alcohol |
| title_full | Heat transfer in solid methyl alcohol |
| title_fullStr | Heat transfer in solid methyl alcohol |
| title_full_unstemmed | Heat transfer in solid methyl alcohol |
| title_short | Heat transfer in solid methyl alcohol |
| title_sort | heat transfer in solid methyl alcohol |
| topic | 7th International Conference on Cryocrystals and Quantum Crystals |
| topic_facet | 7th International Conference on Cryocrystals and Quantum Crystals |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/117111 |
| work_keys_str_mv | AT korolyukoa heattransferinsolidmethylalcohol AT krivchikovai heattransferinsolidmethylalcohol AT sharapovaiv heattransferinsolidmethylalcohol AT romantsovaoo heattransferinsolidmethylalcohol |