Diffusion and release of hydrogen from metals under the effect of ionizing radiation

The phenomenological model of non-equilibrium diffusion and release of hydrogen from metals under the effect of electron beam in the sub-threshold region is considered. It is shown that the radiation stimulates the release and diffusion of hydrogen at a rate, significantly exceeds the rate of therma...

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Bibliographic Details
Published inVacuum Vol. 131; pp. 73 - 80
Main Authors Tyurin, Yu.I., Nikitenkov, N.N., Sigfusson, I.T., Hashhash, A., Yaomin, Van, Dolgov, A.S., Semkina, L.I.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2016
Subjects
Condensed matter
Hydrogen
Metals
Non-equilibrium release
Plasma
Radiation-induced transfer
Plasma
Radiation-induced transfer
Condensed matter
Hydrogen
Metals
Non-equilibrium release
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Summary:The phenomenological model of non-equilibrium diffusion and release of hydrogen from metals under the effect of electron beam in the sub-threshold region is considered. It is shown that the radiation stimulates the release and diffusion of hydrogen at a rate, significantly exceeds the rate of thermal equilibrium processes in the metals. This can occur in the presence of long-lived, in a time scale of single phonon and electron relaxation, vibrationally excited H-bonds. The proposed model confirms the experimental results previously obtained. •Hydrogen metal subsystem is studied theoretically.•A model for irradiation-induced hydrogen yield from metals is developed.•Hydrogen yield from metals is mainly depends on the electrons irradiation time.•Experimental results are highly correlated with the developed model.
ISSN:0042-207X
1879-2715
DOI:10.1016/j.vacuum.2016.06.001