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GENERAL PATTERNS OF THERMAL DECOMPOSITION OF TRANSITION METALS DIHYDRIDES IN MEDIUM WITH THE LOW PARTIAL HYDROGEN PRESSURE
https://doi.org/10.15518/isjaee.2017.01-03.046-060
Abstract
The paper states the results of calorimetric studies of thermal dissociation of titanium, zirconium, magnesium, and palladium hydrides performed in the recent years, and also demonstrates the multiplet character of thermal dissociation, which is specific to all these hydrides. Moreover, the paper shows good correlation between the course of curves of the differential scanning calorimetry and results of thermogravitation measurements.
In addition, the paper establishes the discrete nature of decomposition processes, and proposes the sequence of mechanisms that occur upon heating of transition metals dihydrides in the medium with low partial pressure of hydrogen: reconstruction in a hydride phase; destruction of metal-hydrogen bonds with the formation of supersaturated by hydrogen solid solution; diffusion of hydrogen to the solid phase-environment interface; hydrogen molization at hydrogen output from the solid phase.
About the Authors
L. V. Spivak
Perm State National Research University
Russian Federation
Russian Federation
Lev Spivak - D.Sc. (physics and mathematics), Academician of Academy of Natural Sciences, Professor of Solid State Physics Department of PSNRU; Honored Worker of Higher School.
15 Bukirev str., Perm, 614990, tel.: +7(342)239-63-83; e-mail: lspivak@psu.ru
N. E. Shchepina
Natural Sciences Institute of Perm State University
Russian Federation
Russian Federation
Nadezhda Shchepina - D.Sc. (chemistry), Senior Scientist, Head of the Laboratory of Radiochemistry.
4 Genkel str., Perm, 614990, tel.: +7(342)239-67-21; e-mail: neshchepina@mail.ru
M. A. Dуshluyk
Perm State National Research Technical University
Russian Federation
Russian Federation
Maria Dуshluyk - Postgraduate.
29a Komsomolsky ave., Perm, 614000, tel.: +7(963)875-77-99; e-mail: m.kulikova_89@mail.ru
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Review
For citations:
Spivak L.V., Shchepina N.E., Dуshluyk M.A. GENERAL PATTERNS OF THERMAL DECOMPOSITION OF TRANSITION METALS DIHYDRIDES IN MEDIUM WITH THE LOW PARTIAL HYDROGEN PRESSURE. Alternative Energy and Ecology (ISJAEE). 2017;(1-3):46-60. (In Russ.) https://doi.org/10.15518/isjaee.2017.01-03.046-060
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