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Surface morphology of the bulk tungsten divertor tiles from JET ITER‐like wall
https://repo.qst.go.jp/records/79427
https://repo.qst.go.jp/records/7942755a3afd7-4d6b-4d71-a049-2c88190429ca
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-03-13 | |||||
| タイトル | ||||||
| タイトル | Surface morphology of the bulk tungsten divertor tiles from JET ITER‐like wall | |||||
| 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 |
M. Tokitani
× M. Tokitani× M. Miyamoto× S. Masuzaki× Y. Hatano× S.E., Lee× Y. Oya× T. Otsuka× Oyaizu, Makoto× Kurotaki, Hironori× T. Suzuki× Hamaguchi, Dai× Hayashi, Takumi× Asakura, Nobuyuki× A. Widdowson× S. Jachmich× M. Rubel× Makoto, Oyaizu× Hironori, Kurotaki× Dai, Hamaguchi× Takumi, Hayashi× Nobuyuki, Asakura |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Surface characterization of bulk tungsten tiles (W lamellae) used during the first campaign of JET with the ITER-Like Wall (JET-ILW) was performed by means of microscopy and tritium imaging techniques. This is the first report regarding very detailed structural studies of W lamellae from the JET-ILW divertor. A special feature of the W lamellae installed in JET is the intrinsic network of micro-cracks detected on surfaces of the as-manufactured material. Analyses of different W lamellae samples on the plasma facing surface reveal two types of surface structures caused by plasma impact: areas with strong erosion and regions of mild plasma interaction. In regions of strong erosion, a thin modified layer (thickness of ~20 nm) with a high density of defects including bubble-like structures has been formed. In addition, features indicating melting along edges of micro-cracks with the micro-scale plastic deformation have been identified. | |||||
| 書誌情報 |
Physica Scripta 巻 2020, 号 T171, p. 014010, 発行日 2020-02 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0031-8949 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1402-4896/ab3d09 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://dx.doi.org/10.1088/1402-4896/ab3d09 | |||||
