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Effect of helium irradiation on deuterium permeation behavior in tungsten
https://repo.qst.go.jp/records/48991
https://repo.qst.go.jp/records/48991a36bb4d3-3fae-420c-b9bb-4d478e700d03
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-05-15 | |||||
| タイトル | ||||||
| タイトル | Effect of helium irradiation on deuterium permeation behavior in tungsten | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Uemura, Yuki
× Uemura, Yuki× Sakurada, Shodai× Fujita, Hiroe× Keisuke, Azuma× Zhou, Quilai× Hatano, Yuji× Yoshida, Naoaki× Watanabe, Hideo× 小柳津, 誠× 磯部, 兼嗣× Shimada, Masashi× Buchenauer, Dean× Kolasinski, Robert× Chikada, Takumi× 小柳津 誠× 磯部 兼嗣 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In this study, we measured deuterium (D) gas-driven permeation through tungsten (W) foils that had been pre-damaged by helium ions (He+). The goal of this work was to determine how ion-induced damage affects hydrogen isotope permeation. At 873 K, the D permeability for W irradiated by 3.0 keV He+ was approximately one order of magnitude lower than that for un-damaged W. This difference diminished with increasing temperature. Even after heating to 1173 K, the permeability returned to less than half of the value measured for un-damaged W. We propose that this is due to nucleation of He bubbles near the surface which potentially serve as a barrier to diffusion deeper into the bulk. Exposure at higher temperatures shows that the D permeability and diffusion coefficients return to levels observed for undamaged material. It is possible that these effects are linked to annealing of defects introduced by ion damage, and whether the defects are stabilized by the presence of trapped He. | |||||
| 書誌情報 |
Journal of Nuclear Materials 巻 490, p. 242-246, 発行日 2017-07 |
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| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.jnucmat.2017.04.041 | |||||
