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Surface morphology of the bulk tungsten divertor tiles from JET ITER‐like wall
https://repo.qst.go.jp/records/79426
https://repo.qst.go.jp/records/79426298ba6c7-8513-40b8-b551-7381deb703bc
Item type | 会議発表用資料 / Presentation(1) | |||||
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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_c94f | |||||
資源タイプ | conference object | |||||
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× Oyaizu, Makoto× Kurotaki, Hironori× Hamaguchi, Dai× Hayashi, Takumi× Asakura, Nobuyuki |
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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. | |||||
会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 17th International Conference on Plasma-Facing Materials and Components for Fusion Applications | |||||
発表年月日 | ||||||
日付 | 2019-05-23 | |||||
日付タイプ | Issued |
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Cite as
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, Oyaizu, Makoto, Kurotaki, Hironori, Hamaguchi, Dai, Hayashi, Takumi, Asakura, Nobuyuki, n.d., Surface morphology of the bulk tungsten divertor tiles from JET ITER‐like wall.
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