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Bulk amorphous Zn-Sb under normal and high pressures: Phase transformations and relaxation phenomenaстатья
Информация о цитировании статьи получена из
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Дата последнего поиска статьи во внешних источниках: 3 февраля 2015 г.
- Авторы: Antonov V.E., Arakelyan A.E., Barkalov O.I., Gurov A.F., Ponyatovsky E.G., Rashupkin V.I., Teplinsky V.M.
- Журнал: Journal of Alloys and Compounds
- Том: 194
- Номер: 2
- Год издания: 1993
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 279
- Последняя страница: 285
- DOI: 10.1016/0925-8388(93)90012-C
- Аннотация: Processes occurring upon heating of the high-pressure delta-Zn41Sb59 phase at atmospheric pressure were studied on bulk samples using scanning calorimetry and dilatometry in the temperature interval 170-573 K which includes the temperatures of amorphization and subsequent crystallization. Irreversible relaxation of the amorphous state followed by a heat release and elongation of the sample of the order of 1/4 of those found upon amorphization were observed at 325-425 K. At room temperature the effect of pressure on the electrical resistance of the amorphous Zn41Sb59 samples (P less-than-or-equal-to 70 kbar) and on their volume (P less-than-or-equal-to 28 kbar) was investigated. The resistance decreased with pressure by approximately five orders of magnitude displaying two falls at approximately 20 and 49 kbar characteristic of first-order phase transitions. The former transition was found to be reversible and is accompanied by an approximately 0.8% decrease in volume.
- Добавил в систему: Антонов Владимир Евгеньевич