Preparation of gas hydrates by nonequilibrium condensation of molecular beams / Faizullin M. Z.,Vinogradov A. V.,Koverda V. P. // TECHNICAL PHYSICS LETTERS. - 2013. - V. 39, l. 9. - P. 783-786.

ISSN/EISSN:

1063-7850 / нет данных

Type:

Article

Abstract:

Layers of amorphous ice saturated with carbon dioxide were prepared by the deposition of molecular beams of water and gas onto a substrate cooled with liquid nitrogen. Their heating is accompanied by glass transition (softening) and subsequent spontaneous crystallization. The glass transition and crystallization temperatures were determined from the change in dielectric properties during heating. The heat effects of the transformations were detected using differential thermal analysis. The crystallization of amorphous layers under conditions of deep metastability leads to the formation of crystalline hydrates. The avalanche nucleation of crystallization sites captures the gas molecules; therefore, they are not displaced by the movement of the crystallization front.

Author keywords:

GLASS-TRANSITION; AQUEOUS-SOLUTIONS; WATER; TEMPERATURE; CRYSTALLIZATION; MIXTURE; FEATURES

DOI:

10.1134/S106378501309006X

Web of Science ID:

ISI:000325116200008

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	GLASS-TRANSITION; AQUEOUS-SOLUTIONS; WATER; TEMPERATURE; CRYSTALLIZATION; MIXTURE; FEATURES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	faizullin@itp.uran.ru
Funding-Acknowledgement	Russian Foundation for Basic Research {[}12-08-00017-a]; Ural Branch of the Russian Academy of Sciences {[}12-T-1002]
Funding-Text	This work was supported by the Russian Foundation for Basic Research (project no. 12-08-00017-a) and the Basic Research Program of the Ural Branch of the Russian Academy of Sciences (project no. 12-T-1002).
Number-of-Cited-References	16
Usage-Count-Since-2013	2
Journal-ISO	Tech. Phys. Lett.
Doc-Delivery-Number	227MC