57Fe Mössbauer study of the hydrides of Ni-Cu alloys

Авторы: Zhang B., Bauer H.J., Baier M., Wagner F.E., Antonov V.E., Antonova T.E.
Журнал: Journal of Less-Common Metals
Том: 172
Год издания: 1991
Первая страница: 343
Последняя страница: 350
Аннотация: Hydrides of Ni0.70Cu0.30 alloys were prepared electrolytically or under high pressures of molecular hydrogen and studied by Mossbauer spectroscopy using dilute substitutional Fe-57 as a probe. At a hydrogen pressure of 7 GPa, a hydrogen-to-metal ratio near x = 0.9 could be reached, while at 1.1 GPa or by cathodic charging hydrogen contents near x = 0.6 were obtained, which are already sufficient to suppress ferromagnetism completely. The hydrogen was found to be repelled by the iron probes, but less effectively than in pure nickel. The temperature dependence of the isomer shift showed that the samples began to lose hydrogen near 200 K. The reappearing magnetic phase had hyperfine parameters practically the same as those of the alloy before hydrogenation.
Добавил в систему: Антонов Владимир Евгеньевич

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА