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Взаимодействие ZrMo2 с водородом при высоком давлениитезисы доклада
- Авторы: Lushnikov S.A., Movlaev E.А., Verbetsky V.N., Somenkov V.A., Agafonov S.S.
- Сборник: Сборник материалов конференции 15th international Symposium on Metal Hydrogen Systems
- Тезисы
- Год издания: 2016
- Место издания: ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE EPFL Interlaken, Switzerland
- Первая страница: 1
- Последняя страница: 285
- Аннотация: Interaction of hydrogen with ZrMo2 having C15 Laves phase cubic structure at pressure up to 2500 bars was studied. The amount of sorbed hydrogen was calculated using a modified van der Waals equation for hydrogen at high pressure, proposed by Hemmes: (p + a(p)/V )∙(V - b(p)) = RT [1]. Hydrogen absorption-desorption isotherms were measured at divers temperatures (fig. 1) and values of ΔH (ΔH=26.38kJ/molH2) and ΔS (ΔS=127.22 J/molH2×K) were calculated. The structure of synthesized at 2000 bars pressure ZrMo2D4.0 has been investigated by X-ray and neutron diffraction methods. It was revealed, that ordering of deuterium in the cubic lattice of ZrMo2 led to the formation of superstructure with tetragonal lattice [2, 3] (fig. 2). The occupancy of the positions of deuterium and metal atoms was determined and the interatomic distances were calculated in deuteride structure. In tetragonal lattice deuterium atoms occupy 16f site.
- Добавил в систему: Лушников Степан Александрович