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

Tyurin, Yury Ivanovich; Nikitenkov, N. N.; Sigfusson, I. T.; Hashhash, A.; Yaomin, Van; Dolgov, A. S.; Semkina, L. I.

doi:10.1016/j.vacuum.2016.06.001

Cited by 12 publications

(3 citation statements)

References 22 publications

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“…In comparison leaves in this work were exposed to ions with lower energies of up to several hundred eV [22,23]. However the exposure to energetic ions and UV radiation may act to increase the energy of the hydrogen plasma within the leaf [22,24]. This in turn may stimulate release of both atomic and molecular hydrogen.…”

Section: Discussionmentioning

confidence: 97%

A novel source of atomic hydrogen for passivation of defects in silicon

Hamer

Bourret‐Sicotte

Martins

et al. 2017

Physica Rapid Research Ltrs

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Palladium membranes have been used for decades for the separation of hydrogen from other gasses. In this letter the use of thin palladium leaves to act as sources of atomic hydrogen for silicon samples is explored. It has been assumed in the past that although hydrogen diffuses through palladium in atomic form, the atoms recombine to form molecular hydrogen at the surface. In this letter it is shown that hydrogen supplied to one surface of a palladium leaf can result in atomic hydrogen being released from the opposite surface at low pressure. This is demonstrated through the use of a palladium leaf in a direct plasma system which allows for atomic hydrogen to be supplied to a sample while avoiding exposure to UV radiation from the plasma and high energy charged particles. This method is shown to provide significant atomic hydrogen to silicon samples and improve passivation of silicon surfaces. Method of Shielded Hydrogen Passivation: Schematic of direct plasma chamber with a shield inserted between the plasma and the silicon sample.

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Section: Discussionmentioning

confidence: 97%

A novel source of atomic hydrogen for passivation of defects in silicon

Hamer

Bourret‐Sicotte

Martins

et al. 2017

Physica Rapid Research Ltrs

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“…Was determined that the isotope effect (differences in the H and D releases at different ways to stimulate the release of hydrogen isotopes) is relatively weak, but there is a tendency to an increase in temperature displacements for H-isotope when there is a non-equilibrium component in the input energy (material depending) [[2], [3], [4], [5]].…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Data on hydrogen isotopes yield from Pd under thermal, electric current, radiation and UV stimulations

et al. 2020

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Data on the hydrogen isotopes (H, D) yield of Pd with linear heating: a) by the accelerated electrons beam with energy up to 35 KeV, b) by joule heat of AC (50 Hz) through samples, c) by external coaxial metal furnace (stainless steel), d) in quartz vacuum cell are presented and e) UV stimulation during thermal heating (the research article [2]).The highest temperature position of the maximum hydrogen isotopes intensity release corresponds to the samples heating in a metal vacuum cell by external coaxial furnace. The lowest temperature position of the maximum intensity hydrogen isotopes release corresponds to the heating by accelerated electrons beam. The difference in these positions of the maximum is ΔТ ≈ 300°С. Shift of maxima position in the hydrogen and deuterium release into the low-temperature region is significant (ΔТ ≈ 50–100°С) for the Pd sample when metal are heated by electric current or in a quartz vacuum cell compared to their heating in a metal vacuum cell and under UV stimulation during thermal heating.

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“…There are several ways to solve this problem such as application of coatings, high-current beam irradiation, and creation of low-temperature conditions for hydrogen release [5,33,34]. In many cases, hydrogenated products (for example, fuel-element claddings) are deformed, which leads to the formation of pores, cracks, and other defects [1,35].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Property Testing of Hydrogenated Zirconium Irradiated with Electrons

Kudiiarov

Ларионов

Tyurin

2018

Metals

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Abstract:The mechanical properties of the hydrogenated zirconium alloy Zr-1Nb are studied under different conditions for hydrogen removal by an electron beam and thermal heating. The mechanical testing of zirconium samples is analyzed during hydrogenation and irradiation with a low energy electron beam. The plasticity of the samples is shown to be increased during the radiation stimulation of hydrogen removal from zirconium by even a weak electron beam. In this case, the tensile strength (ultimate strength) is practically not changed.

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

Cited by 12 publications

References 22 publications

A novel source of atomic hydrogen for passivation of defects in silicon

A novel source of atomic hydrogen for passivation of defects in silicon

Data on hydrogen isotopes yield from Pd under thermal, electric current, radiation and UV stimulations

Mechanical Property Testing of Hydrogenated Zirconium Irradiated with Electrons

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