2023 Fiscal Year Final Research Report
Development of the W/ODS-Cu divertor heat removal component by using the Advanced Multi-Step Brazing (AMSB)
| Project/Area Number |
20H01887
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 14020:Nuclear fusion-related
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Keywords | 先進的ろう付接合 / ダイバータ / タングステン / 銅合金 / 微細構造解析 |
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| Outline of Final Research Achievements |
Manufacturing technology for new type of divertor heat removal component with ultra-high heat removal performance was established via "Advanced Multi-Step Brazing (AMSB)". The new component was basically consisted by tungsten (W) armour with oxide dispersion strengthened Cu alloy (ODS-Cu) heat sink.
The new type of divertor heat removal component showed excellent heat removal performance under a steady-state heat loading of 30 MW/m2, in which this heat loading value is far above the initial target value of 20 MW/m2.
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| Free Research Field |
核融合炉材料学
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| Academic Significance and Societal Importance of the Research Achievements |
研究代表者が発明した世界初のろう付接合法「先進多段階ろう付接合法(Advanced Multi-Step Brazing: AMSB)」は，核融合炉のダイバータ受熱機器に対する革新的製造技術に位置付けられ，学術的価値の高いものである．一方で，本技術は異分野や産業界で要求される除熱機器の性能向上や高電圧の接点材料への応用に展開できる可能性を秘めている．今後，産学官連携活動を進めていくことで産業界への技術移転に繋がる可能性が期待される．
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