Kinetics of decomposition of erbium hydride

Boundary-value problem with moving bounds and dynamic boundary conditions: Diffusion peak of TDS-spectrum of dehydriding

“…As an example we give an analysis of the experimental data published in article [2]. The transformation chain ErH 3 !…”

“…Computer simulation in the science of materials is being rapidly developed as an interdisciplinary line of investigations. We do no extensive literature survey, but only mention the papers [1][2][3][4][5][6] that deal with the article subject. In these articles, one can find descriptions of experimental methods, corresponding models, data on various materials, and further references.…”

“…But a metal with dissolved hydrogen is considered in [7][8][9][10]. The process of powder metal hydride decomposition under heating is modelled in this article (further development of the subject considered in [1][2][3][4][5][6]). Difficulties considerably increase: one needs to consider the phase change, heat absorption on the moving phase bound, and the particle size reduction effect as the result of the lattice rearrangement.…”

“…Much attention is paid to kinetics of hydriding/dehydriding of metals. We consider material from [2] as the object to be modelled. Under heating, ErH 3 changes as follows: ErH 3 !…”

“…Sorption is exothermal while hydride decomposition is endothermal. We suppose that heating of the powder is almost uniform (as, for instance, in [2]). These specifications determine the range of model adequacy and corresponding experimental conditions.…”