|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Reversibility of the $$\textbackslashbeta \textbackslashrightleftharpoons \textbackslashalpha $$ $\upbeta$ $\rightleftharpoons$ $\upalpha$ phase transformations in a Pd–Cu solid solutionстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 14 сентября 2017 г.
- Авторы: Ievlev V.M., Dontsov A.I., Maksimenko A.A., Roshan N.R.
- Журнал: Inorganic Materials
- Том: 53
- Номер: 5
- Год издания: 2017
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 484
- Последняя страница: 488
- DOI: 10.1134/S0020168517050090
- Аннотация: Thin samples (about 4 μm in thickness) of membrane foil of a Pd–Cu solid solution have been grown on the surface of a SiO2/Si heterostructure by magnetron sputtering. The key features of β⇌ α phase transformations have been identified using X-ray diffraction, Auger electron spectroscopy, energy dispersive X-ray microanalysis, and resistivity measurements during a heating–cooling cycle. The results demonstrate that the phase transformations are reversible only in solid solutions containing an excess of copper in the concentration range corresponding to limiting temperatures near the temperature stability limit of the β-phase. Thermal conditions of membrane element operation have been found that ensure stability of the ordered atomic structure of the foil and, accordingly, its high performance. The β⇌ α phase transformation has been shown to be reversible after holding the foil at t = 830°C, in a state with a disordered atomic structure, which ensures restoration of its high hydrogen permeability after diffusion bonding to the case of a membrane element.
- Добавил в систему: Иевлев Валентин Михайлович