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Surface morphology in tungsten and RAFM steel exposed to helium plasma in PSI-2
http://hdl.handle.net/10655/00012762
http://hdl.handle.net/10655/000127628202a25d-5e32-4ac5-aca9-74b9a0a58b66
名前 / ファイル | ライセンス | アクション |
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Phys.Scr.2017_pp014062 (14.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-16 | |||||
タイトル | ||||||
タイトル | Surface morphology in tungsten and RAFM steel exposed to helium plasma in PSI-2 | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | surface morphology | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | helium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | tungsten | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | RAFM steel | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | erosion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
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 | |||||
著者 |
SAKAMOTO, Ryuichi
× SAKAMOTO, Ryuichi× BERNARD, Elodie× KRETER, Arkadi× MARTIN, Celine× Pegourie, Bernard× Pieters, Gregory× Rousseau, Bernard× Grisolia, Christian× YOSHIDA, Naoaki |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0002-4453-953X | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Impact of the helium plasma exposure on the surface modification in tungsten and reduced activation ferritic/martensitic (RAFM) steel have been investigated on the linear plasma device PSI-2 assuming the condition of DEMO first wall. In tungsten, a nanoscale undulating surface structure, which has a periodic arrangement, is formed under low temperature conditions below fuzz nanostructure formation threshold ∼1000 K. Interval and direction of the undulation shows dependence on the crystal orientation. A large variation in surface level up to 200 nm has been observed among grains at a fluence of $3\times {10}^{26}$ He m−2 showing dependence of the surface erosion rate on the crystal orientation. The {100} plane in which the undulating surface structure is not formed shows the highest erosion rate. This significant erosion is due to the multistage sputtering through impurity. In RAFM steel, sponge-like nanostructure is developed and it grows with increasing helium fluence beyond 1 μm. In the sponge-like nanostructure, a composition change from the base material is observed in which the tungsten ratio increases while the iron ratio decreases showing differences in sputtering ratio depending on the atomic mass. | |||||
書誌情報 |
Physica Scripta 巻 2017, 号 T170, p. 014062, 発行日 2017-11-27 |
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出版者 | ||||||
出版者 | IOP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0031-8949 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/1402-4896/aa93a2 | |||||
権利 | ||||||
権利情報 | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physica Scripta, Volume 2017, Number T170 and may be found at doi.org/10.1088/1402-4896/aa93a2. | |||||
情報源 | ||||||
関連名称 | Citation Ryuichi Sakamoto et al 2017 Phys. Scr. 2017 014062 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1402-4896/aa93a2 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
NAIS | ||||||
10863 |