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Surface morphology ...
Surface morphology of the bulk tungsten divertor tiles from JET ITER-like wall
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- Tokitani, M. (author)
- Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan.
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- Miyamoto, M. (author)
- Shimane Univ, Matsue, Shimane 6908504, Japan.
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- Masuzaki, S. (author)
- Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan.
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- Hatano, Y. (author)
- Univ Toyama, Toyama 9308555, Japan.
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- Lee, S. E. (author)
- Univ Toyama, Toyama 9308555, Japan.
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- Oya, Y. (author)
- Shizuoka Univ, Shizuoka 4228529, Japan.
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- Otsuka, T. (author)
- Kindai Univ, Osaka 5778502, Japan.
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- Oyaidzu, M. (author)
- QST, Rokkasho, Aomori 0393212, Japan.
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- Kurotaki, H. (author)
- QST, Rokkasho, Aomori 0393212, Japan.
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- Suzuki, T. (author)
- QST, Rokkasho, Aomori 0393212, Japan.
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- Hamaguchi, D. (author)
- QST, Rokkasho, Aomori 0393212, Japan.
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- Hayashi, T. (author)
- QST, Rokkasho, Aomori 0393212, Japan.
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- Asakura, N. (author)
- QST, Rokkasho, Aomori 0393212, Japan.
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- Widdowson, A. (author)
- Culham Sci Ctr, Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England.
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- Jachmich, S. (author)
- TEC, ERM KMS, LPP, Brussels, Belgium.
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- Rubel, Marek (author)
- KTH,Fusionsplasmafysik
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Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan Shimane Univ, Matsue, Shimane 6908504, Japan. (creator_code:org_t)
- 2020-02-27
- 2020
- English.
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In: Physica Scripta. - : IOP PUBLISHING LTD. - 0031-8949 .- 1402-4896. ; T171:1
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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 similar to 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.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- JET-ILW
- bulk tungsten divertor
- erosion and deposition
- micro-scale plastic deformation
- tritium
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Tokitani, M.
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Miyamoto, M.
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Masuzaki, S.
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Hatano, Y.
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Lee, S. E.
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Oya, Y.
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Otsuka, T.
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Oyaidzu, M.
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Kurotaki, H.
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Suzuki, T.
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Hamaguchi, D.
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Hayashi, T.
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Asakura, N.
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Widdowson, A.
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Jachmich, S.
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Rubel, Marek
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physica Scripta
- By the university
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Royal Institute of Technology