The effect of proton ordering in thermal conductivity of clathrate tetrahydrofuran hydrate
The effect of proton ordering in tetrahydrofuran hydrate has been detected using a technique based on measurement of thermal conductivity. The thermal conductivity of tetrahydrofuran hydrate was measured by the steady-state potentiometric method in an interval of 2–150 K. Two regimes were selected...
Збережено в:
| Дата: | 2008 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2008
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/117396 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | The effect of proton ordering in thermal conductivity of clathrate tetrahydrofuran hydrate / A.I. Krivchikov, O.O. Romantsova, O.A. Korolyuk // Физика низких температур. — 2008. — Т. 34, № 8. — С. 821–828. — Бібліогр.: 54 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The effect of proton ordering in tetrahydrofuran hydrate has been detected using a technique based on
measurement of thermal conductivity. The thermal conductivity of tetrahydrofuran hydrate was measured
by the steady-state potentiometric method in an interval of 2–150 K. Two regimes were selected to observe
the effect: (i) slow cooling of the hydrate sample and (ii) doping the hydrate with a small quantity of KOH alkali
to a concentration of 10⁻⁴. Proton ordering affects the temperature dependence of the thermal conductivity
changing its glass-like behavior to crystal-like below 150 K. The phonon maximum that appears in the
temperature dependence of the thermal conductivity at T = 17 K is attributed to the cooperative process of
local proton ordering stimulated by orientational and ionic defects. |
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