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Elucidation of Non-equilibrium Arc Cathode Spot Movement Phenomenon Toward Establishment of Ultrafast Oxide Layer Removal Method in Atmospheric Pressure

Research Project

Project/Area Number 21K04007
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21010:Power engineering-related
Research InstitutionTokyo City University

Principal Investigator

Iwao Toru  東京都市大学, 理工学部, 教授 (80386359)

Co-Investigator(Kenkyū-buntansha) 鈴木 憲吏  東京都市大学, 理工学部, 准教授 (20638134)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsアーク放電 / 陰極点 / 酸化膜除去 / パワーエレクトロニクス / 三次元電磁熱流体シミュレーション / 陰極点挙動 / プラズマ / 3R
Outline of Research at the Start

本研究では,超高速酸化膜除去手法の確立に向けた大気圧非平衡アーク陰極点の移動現象の解明を行うことを目的としている。この実現のため,年度毎のサブテーマを遂行し、目的の達成を図る。

令和3年度は「超高速並列計算技術の開発とパルス電流を用いた磁界印加装置の改良」、令和4年度は「初期圧力と磁束密度変化時におけるイオン分布の数値解析と観測」、令和5年度は「大気圧非平衡アーク陰極点の移動現象の解明」を行う。

Outline of Final Research Achievements

To establish an ultra-fast oxide film removal method, research was conducted to elucidate the movement phenomenon of atmospheric non-equilibrium (non-LTE) arc cathode spots. This involved the development of ultra-high-speed parallel computation technology and the improvement of a magnetic field application device using pulsed current. Numerical analysis of ion distribution during initial pressure and magnetic flux density changes was also carried out. As a result, the movement phenomenon of atmospheric non-equilibrium arc cathode spots was detailed, providing crucial insights for the development of new surface treatment technology. An efficient simulation method utilizing AI technology and a multipoint spectroscopic measurement method was established. This enabled the high-precision visualization and prediction of cathode spot splitting, disappearance, and movement trajectories. Consequently, the efficiency of oxide film removal and surface modification was dramatically improved.

Academic Significance and Societal Importance of the Research Achievements

本研究により、大気圧非平衡アーク陰極点の移動現象を詳細に解明し、新しい表面処理技術の開発に向けた重要な知見を得ることができた。AI技術を活用した高効率なシミュレーション手法と、多点分光計測手法を確立し、陰極点の分裂、消滅、移動軌跡を高精度に可視化し、予測する技術を開発した。これにより、酸化膜の除去や表面改質の効率が飛躍的に向上した。今後は、得られた知見を基に更に研究を進め、産業応用への具体的な展開を図る。特に、航空宇宙産業や半導体産業など高度な材料加工技術が求められる分野での応用が期待される。また、本研究で確立した技術を他の表面処理技術にも応用し、さらなるイノベーションを促進することを目指す。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (14 results)

All 2024 2023 2022 2021

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results) Presentation (9 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Analysis of Arc Electron and Heavy Particle Temperature Distribution with Lateral Flow Velocity for Elucidation of Re-strike2022

    • Author(s)
      Nemoto Yusuke、Suzuki Yuki、Ren Zhenwei、Maeda Yoshifumi、Iwao Toru
    • Journal Title

      IEEJ Transactions on Power and Energy

      Volume: 142 Issue: 4 Pages: 228-234

    • DOI

      10.1541/ieejpes.142.228

    • ISSN
      0385-4213, 1348-8147
    • Year and Date
      2022-04-01
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Differentiation of Numerical Simulation Result of Direct Current Circuit Breaker Interruption Process Using Artificial Intelligence2022

    • Author(s)
      Ren Zhenwei、Nemoto Yusuke、Suzuki Yuki、Takagi Masahiro、Morishita Honoka、Gustilo Reggie Cobarrubia、Iwao Toru
    • Journal Title

      IEEJ Transactions on Electrical and Electronic Engineering

      Volume: 18 Issue: 1 Pages: 147-149

    • DOI

      10.1002/tee.23707

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Numerical simulation of external magnetic field effect on arc plasma after molten metal bridge breaking under different electrode opening velocities2022

    • Author(s)
      Zhenwei Ren , Yusuke Nemoto , Yuki Suzuki , Masahiro Takagi , Honoka Morishita , Toru Iwao
    • Journal Title

      AIP ADVANCES

      Volume: 12 Issue: 3 Pages: 035239-035239

    • DOI

      10.1063/5.0079263

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Analysis of Adverse Influence of Metal Vapor to Arc Movement Between Electrodes with External Magnetic Field Applied by Numerical Simulation2022

    • Author(s)
      Zhenwei Ren , Yusuke Nemoto , Yuki Suzuki , Shinji Yamamoto , Gaku Asanuma , Toshiyuki Onchi , Toru Iwao
    • Journal Title

      IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING

      Volume: 17 Issue: 2 Pages: 183-193

    • DOI

      10.1002/tee.23498

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cathode Spot Velocity of Atmospheric Arc Plasma after Arc Ignition Affected by Self and External Electromagnetic Force between Parallel Electrodes Using 3D Numerical Simulation2022

    • Author(s)
      Zhenwei Ren , Yusuke Nemoto , Yoshifumi Maeda , Shinji Yamamoto , Gaku Asanuma , Toshiyuki Onchi , Toru Iwao
    • Journal Title

      IEEJ Transactions on Electrical and Electronic Engineering

      Volume: 16 Issue: 12 Pages: 1656-1663

    • DOI

      10.1002/tee.23469

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] 機械学習を用いた真空アーク陰極点の検出2024

    • Author(s)
      宗像 敬、石原のぞみ、岩尾 徹、根本雄介
    • Organizer
      令和6年電気学会全国大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Contribution of Non-equilibrium around Vacuum Arc Cathode Spot to Retrograde Motion in Application of Transverse Magnetic Field2023

    • Author(s)
      Nozomi Ishihara, Hiroto Suzuki, Kenshin Saigo, Susumu Ichinose, Masahiro Takagi, Honoka Morishita, Yuki Suzuki, Zhenwei Ren, Yusuke Nemoto, Toru Iwao
    • Organizer
      023 30th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 雰囲気圧力変化が及ぼす横磁界印加時の真空アーク陰極点近傍の非平衡性2023

    • Author(s)
      石原のぞみ、鈴木裕斗、草刈雄己、鈴木祐揮、根本雄介、鈴木憲吏、岩尾徹
    • Organizer
      令和5年(2023年)放電学会 年次大会・シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 真空アークにおける3次元電磁熱流体シミュレーションを用いた陰極ジェットの流速と陰極温度の時間推移の解析2022

    • Author(s)
      髙木 真宏 , 鈴木 裕斗 , 森下 穂香 , 鈴木 祐揮 , 根本 雄介 , 任 振威 , 岩尾 徹
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/静止器/開閉保護合同研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] 真空アーク陰極点の移動要因の解明に向けたシース長が及ぼすシース電界と電子電流密度2022

    • Author(s)
      鈴木 裕斗 , 髙木 真宏 , 根本 雄介 , 任 振威 , 鈴木 祐揮 , 森下 穂香 , 岩尾 徹
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/静止器/開閉保護合同研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] 磁気駆動アークのリストライク直前における陽極点近傍の分光計測によるアーク温度算出2022

    • Author(s)
      西郷 謙伸 , 鈴木 裕斗 , 一瀬 謹 , 草刈 雄己 , 任 振威 , 根本 雄介 , 岩尾 徹
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/静止器/開閉保護合同研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] 真空アークにおける陰極からのT-F電子放出を考慮した3次元電磁熱流体解析2022

    • Author(s)
      高木真宏,鈴木裕斗,森下穂香,鈴木祐揮,根本雄介,任振威,岩尾 徹
    • Organizer
      令和4年電気学会全国大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 真空アークにおける陰極シースを考慮した陰極点の電流密度分布に及ぼす陰極界面のエネルギーバランス2021

    • Author(s)
      高木真宏,根本雄介,鈴木裕斗,任振威,鈴木 祐揮,岩尾徹
    • Organizer
      電気学会 放電・プラズマ・パルスパワー/開閉保護/高電圧 合同研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Analysis of Ion Density at Sheath Region Affected by Moving Speed of Vacuum Arc Cathode Spot Using Three-Dimensional Electromagnetic Thermal Fluid Simulation2021

    • Author(s)
      Hiroto Suzuki, Masahiro Takagi, Zhenwei Ren, Yusuke Nemoto, Yuki Suzuki, Toru Iwao
    • Organizer
      APS GEC (Annual Gaseous Electronics Conference)
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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