Synergistic effects between helium and hydrogen isotopes on gas detrapping in polycrystalline nickel

E. Abramov; Shi San-Qiang; D. A. Thompson; W. W. Smeltzer

doi:10.1016/0022-3115(91)90353-9

Synergistic effects between helium and hydrogen isotopes on gas detrapping in polycrystalline nickel

E. Abramov, Shi San-Qiang, D. A. Thompson, W. W. Smeltzer

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The thermal desorption and SEM techniques have been used to study the effects of the presence of deuterium and hydrogen atoms on the retention of implanted helium in polycrystalline nickel. For samples pre-implanted with 40 keV helium to a dose of 1 × 10²¹ ions/m² the ratio of trapped deuterium atoms to the implanted helium was found to be about 0.4 D/He and an effective trapping energy ~ 0.5 eV was found. For samples pre-implanted with 10 keV He to doses from 1.5 × 10²¹ to 4 × 10²¹ ions/m², low temperature helium release stages were observed, and resulted in a decrease of deuterium trapping efficiency to as low as 0.0075 D/He. Both deuterium and hydrogen charging were found to enhance the helium release and to decrease the release temperature. For the high dose samples, deuterium or hydrogen gas charging and thermal desorption were also found to induce blister growth and surface exfoliation.

Original language	English
Pages (from-to)	61-67
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	186
Issue number	1
DOIs	https://doi.org/10.1016/0022-3115(91)90353-9
State	Published - 2 Dec 1991
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

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title = "Synergistic effects between helium and hydrogen isotopes on gas detrapping in polycrystalline nickel",

abstract = "The thermal desorption and SEM techniques have been used to study the effects of the presence of deuterium and hydrogen atoms on the retention of implanted helium in polycrystalline nickel. For samples pre-implanted with 40 keV helium to a dose of 1 × 1021 ions/m2 the ratio of trapped deuterium atoms to the implanted helium was found to be about 0.4 D/He and an effective trapping energy ~ 0.5 eV was found. For samples pre-implanted with 10 keV He to doses from 1.5 × 1021 to 4 × 1021 ions/m2, low temperature helium release stages were observed, and resulted in a decrease of deuterium trapping efficiency to as low as 0.0075 D/He. Both deuterium and hydrogen charging were found to enhance the helium release and to decrease the release temperature. For the high dose samples, deuterium or hydrogen gas charging and thermal desorption were also found to induce blister growth and surface exfoliation.",

author = "E. Abramov and Shi San-Qiang and Thompson, {D. A.} and Smeltzer, {W. W.}",

note = "Funding Information: the Natural Sciences and Engineering Research Council of Canada for funding this research. One of us (E. Abramov) would also like to thank G. Lampert and his staff for the implantations of the samples at MEIRA. Soreq Nuclear Research Centre.",

year = "1991",

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doi = "10.1016/0022-3115(91)90353-9",

language = "English",

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journal = "Journal of Nuclear Materials",

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AU - Abramov, E.

AU - San-Qiang, Shi

AU - Thompson, D. A.

AU - Smeltzer, W. W.

N1 - Funding Information: the Natural Sciences and Engineering Research Council of Canada for funding this research. One of us (E. Abramov) would also like to thank G. Lampert and his staff for the implantations of the samples at MEIRA. Soreq Nuclear Research Centre.

PY - 1991/12/2

Y1 - 1991/12/2

N2 - The thermal desorption and SEM techniques have been used to study the effects of the presence of deuterium and hydrogen atoms on the retention of implanted helium in polycrystalline nickel. For samples pre-implanted with 40 keV helium to a dose of 1 × 1021 ions/m2 the ratio of trapped deuterium atoms to the implanted helium was found to be about 0.4 D/He and an effective trapping energy ~ 0.5 eV was found. For samples pre-implanted with 10 keV He to doses from 1.5 × 1021 to 4 × 1021 ions/m2, low temperature helium release stages were observed, and resulted in a decrease of deuterium trapping efficiency to as low as 0.0075 D/He. Both deuterium and hydrogen charging were found to enhance the helium release and to decrease the release temperature. For the high dose samples, deuterium or hydrogen gas charging and thermal desorption were also found to induce blister growth and surface exfoliation.

AB - The thermal desorption and SEM techniques have been used to study the effects of the presence of deuterium and hydrogen atoms on the retention of implanted helium in polycrystalline nickel. For samples pre-implanted with 40 keV helium to a dose of 1 × 1021 ions/m2 the ratio of trapped deuterium atoms to the implanted helium was found to be about 0.4 D/He and an effective trapping energy ~ 0.5 eV was found. For samples pre-implanted with 10 keV He to doses from 1.5 × 1021 to 4 × 1021 ions/m2, low temperature helium release stages were observed, and resulted in a decrease of deuterium trapping efficiency to as low as 0.0075 D/He. Both deuterium and hydrogen charging were found to enhance the helium release and to decrease the release temperature. For the high dose samples, deuterium or hydrogen gas charging and thermal desorption were also found to induce blister growth and surface exfoliation.

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Synergistic effects between helium and hydrogen isotopes on gas detrapping in polycrystalline nickel

Abstract

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