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On the isomorphous phase transformation in the solid f.c.c. solutions Co-H at high pressuresстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 3 февраля 2015 г.
- Авторы: Antonov V.E., Antonova T.E., Baier M., Grosse G., Wagner F.E.
- Журнал: Journal of Alloys and Compounds
- Том: 239
- Номер: 2
- Год издания: 1996
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 198
- Последняя страница: 202
- DOI: 10.1016/0925-8388(96)02188-3
- Аннотация: Samples of Co containing 0.2 at.% Fe and consisting of a mixture of approximately equal amounts of the h.c.p. (stable) and f.c.c. (metastable) phases were loaded with hydrogen by a 24 h exposure to a hydrogen atmosphere at 325 degrees C and pressures up to 9 GPa. X-ray diffraction at ambient pressure and 100 K has revealed a steep increase in the lattice parameter of the f.c.c. phase in the samples hydrogenated at 4-6 GPa, corresponding to an increase in the hydrogen content from few atomic per cent to an H/Co atomic ratio of approximately 0.95. This behaviour is interpreted as a supercritical anomaly of an isomorphous phase transformation in the f.c.c. solid solutions. The topology of the T-P phase diagram of the Co-H system is discussed in view of these observations.
- Добавил в систему: Антонов Владимир Евгеньевич