naa a22 4500 510815286 CHVBK 20180411083504.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1134/S0031918X13010079 doi (NATIONALLICENCE)springer-10.1134/S0031918X13010079 Hydrogen-sorption properties of magnesium and its intermetallics with Ca7Ge-Type structure [Elektronische Daten] [Z. Matysina, S. Zaginaichenko, D. Shchur] The statistical theory of the hydrogenation of magnesium and its alloys Mg6 M′M″(with M′ = Mg, Ti, V, Nb, Zr; M″ = Mg, Al, Zn) has been developed. The energies of crystals have been calculated, and equations for their thermodynamic equilibrium state have been found. Equations for determining the P-T-c diagram have been obtained. Curves that determine the temperature dependences of the concentration of hydrogen desorbed from crystals were studied. The maximum hydrogen-desorption temperature and its dependence on interatomic-interaction energy parameters and the activity of hydrogen atoms were estimated. Isopleths of hydrogen solubility were calculated for different concentrations of hydrogen. The level of the curves for different coefficients of activity and slope for different hydrogen contents were found. Isotherms of hydrogen solubility in crystals were studied. The possibility of achieving the sorption hysteresis effect was clarified, and the length and width of the hysteresis loop at different temperatures were estimated. The aforementioned functional dependences were plotted. The calculated data were compared with experimental results available in the literature. The theoretical and experimental data agree qualitatively. Pleiades Publishing, Ltd., 2013 statistical theory nationallicence magnesium compounds nationallicence free energy nationallicence hydrogen solubility isotherms and isopleths nationallicence temperature nationallicence pressure nationallicence hysteresis effect nationallicence Matysina Z. Dnepropetrovsk National University, ul. Gagarina 72, 49000, Dnepropetrovsk, Ukraine aut Zaginaichenko S. Frantsevich Institute of Materials Science Problems, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, 03142, Kiev, Ukraine aut Shchur D. Frantsevich Institute of Materials Science Problems, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, 03142, Kiev, Ukraine aut The Physics of Metals and Metallography SP MAIK Nauka/Interperiodica 114/4(2013-04-01), 308-321 0031-918X 114:4<308 2013 114 11508 https://doi.org/10.1134/S0031918X13010079 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0031918X13010079 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matysina Z. Dnepropetrovsk National University, ul. Gagarina 72, 49000, Dnepropetrovsk, Ukraine aut NATIONALLICENCE 700 1- Zaginaichenko S. Frantsevich Institute of Materials Science Problems, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, 03142, Kiev, Ukraine aut NATIONALLICENCE 700 1- Shchur D. Frantsevich Institute of Materials Science Problems, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, 03142, Kiev, Ukraine aut NATIONALLICENCE 773 0- The Physics of Metals and Metallography SP MAIK Nauka/Interperiodica 114/4(2013-04-01), 308-321 0031-918X 114:4<308 2013 114 11508 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer