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  1. Published Papers
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Advanced Multi-Step Brazing (AMSB) for fabrication of new type of W/stainless steel first-wall component with ODS-Cu intermediate layer

http://hdl.handle.net/10655/0002001679
http://hdl.handle.net/10655/0002001679
7c9ed4a3-c41e-4032-bb7f-5d07b7c8d864
名前 / ファイル ライセンス アクション
14375_Fusion.Eng.Des.pdf 14375_Fusion.Eng.Des.pdf (3.2 MB)
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Item type 学術雑誌論文 / Journal Article(1)
公開日 2025-04-25
タイトル
タイトル Advanced Multi-Step Brazing (AMSB) for fabrication of new type of W/stainless steel first-wall component with ODS-Cu intermediate layer
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
主題 Brazing
キーワード
言語 en
主題Scheme Other
主題 ODS-Cu
キーワード
言語 en
主題Scheme Other
主題 First-wall
キーワード
言語 en
主題Scheme Other
主題 Hydrogen isotope retention
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 TOKITANI, Masayuki

× TOKITANI, Masayuki

TOKITANI, Masayuki

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YAMASHITA, Toyo

× YAMASHITA, Toyo

YAMASHITA, Toyo

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HAMAJI, Yukinori

× HAMAJI, Yukinori

HAMAJI, Yukinori

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MASUZAKI, Suguru

× MASUZAKI, Suguru

MASUZAKI, Suguru

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SHIMABUKURO, Shun

× SHIMABUKURO, Shun

SHIMABUKURO, Shun

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KONO, Kaori

× KONO, Kaori

KONO, Kaori

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YOSHIDA, Naoaki

× YOSHIDA, Naoaki

YOSHIDA, Naoaki

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OYA, Makoto

× OYA, Makoto

OYA, Makoto

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ONCHI, Takumi

× ONCHI, Takumi

ONCHI, Takumi

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IKEZOE, Ryuya

× IKEZOE, Ryuya

IKEZOE, Ryuya

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IDEI, Hiroshi

× IDEI, Hiroshi

IDEI, Hiroshi

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HANADA, Kazuaki

× HANADA, Kazuaki

HANADA, Kazuaki

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著者ID
内容記述タイプ Other
内容記述 ORCID 0000-0002-3744-2481
抄録
内容記述タイプ Abstract
内容記述 The novel method “Advanced Multi-Step Brazing (AMSB)” has been developed to fabricate a new type of “divertor” and “first-wall” heat removal component in a fusion reactor. This study is focused on the latter component, in which a tungsten (W) sheet is jointed through AMSB to a stainless steel (SUS) substrate via an oxide dispersion strengthened copper (ODS-Cu) intermediate layer. The principle of AMSB is a repetitive application of the advanced brazing technique (ABT). The initial purpose of the ABT was to braze W to ODS-Cu (GlidCop®) with the Ni-11 %P filler material. Later, we confirmed that the ABT is able to produce a very tough GlidCop® and SUS (GlidCop®/SUS) joint. One of the major advantages of GlidCop®/SUS joints is physically strong tolerance against the repetitive brazing heat-cycle. Thus, a repetitive application of the ABT does not cause any negative effects against post-brazed GlidCop®/SUS joints, and hence AMSB can be applied for fabricating a single heat-removal component with multiple joint interfaces. A small-scale sample of the new type of first-wall component was fabricated through two-step brazing. At first, the GlidCop® plate was jointed to the SUS by the ABT, and then a thin W-sheet with the thickness of 0.254 mm was jointed to GlidCop®/SUS by the ABT. If a large area of the first-wall surface in the fusion reactor can be covered with such a thin W-sheet, the amount of hydrogen isotopes trapped on the first-wall surface could be significantly reduced, compared to other fabrication methods such as a vacuum plasma spray W (VPS-W). The VPS-W is theoretically less dense than a W-sheet and often contains pore structures, which could act as effective trapping sites for hydrogen isotopes. A small-scale sample of the new type of first-wall component with a W-sheet (W/GlidCop®/SUS) was successfully fabricated to overcome the above disadvantages. In addition, the W surface of the component showed low retention characteristics of hydrogen isotopes compared with other W surfaces, e.g., atmospheric plasma-sprayed W (APS-W).
言語 en
bibliographic_information en : Fusion Engineering and Design

巻 216, 号 July 2025, p. 115066, 発行日 2025-04-16
出版者
出版者 Elsevier
言語 en
item_10001_source_id_9
収録物識別子タイプ PISSN
収録物識別子 0920-3796
item_10001_source_id_11
収録物識別子タイプ NCID
収録物識別子 AA10691446
item_10001_relation_14
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.fusengdes.2025.115066
権利
言語 en
権利情報 © 2025 The Authors.
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.fusengdes.2025.115066
関連名称 Publisher version
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
item_10001_text_23
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