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Self-atomic rearrangement technique based on the "shaking" of high-density high-frequency currents

Research Project

Project/Area Number 20H02025
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 18010:Mechanics of materials and materials-related
Research InstitutionNagoya University

Principal Investigator

TOKU Yuhki  名古屋大学, 工学研究科, 准教授 (60750180)

Co-Investigator(Kenkyū-buntansha) 巨 陽  名古屋大学, 工学研究科, 教授 (60312609)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords薄膜 / 原子配列 / ナノ材料 / 界面 / 電子風力 / 原子拡散 / エレクトロマイグレーション / 密着強度 / 原子再配列 / 高秩序化 / 結晶構造 / 高周波高密度電流
Outline of Research at the Start

本研究では,金属薄膜を対象に,熱処理に依らない高周波高密度電流による原子の再配列を世界で初めて実現する.これは,電子と原子の力学的相互作用,すなわち電子風力を原子配列の「揺さぶり」として利用することにより,自発的に原子を安定位置へと再配列させる極めて独創的な手法である.これにより,結晶方位の整列,結晶粒の増大,最密結晶面の増加,点・線欠陥の消滅を誘起し,薄膜の応用上重要な密着性・導電性といった機械特性・電気特性の向上を実現する.さらに,高周波高密度電流がなす原子の駆動現象のメカニズムを解明し,熱処理に依らない新たな電子風力を基盤とした原子配列・結晶構造の制御法として学理構築を目指す.

Outline of Final Research Achievements

In this study, we have achieved atomic rearrangement in metallic thin films by periodic "oscillations" of electron wind force induced by high-density currents at high frequencies (>100 kHz) on the atomic arrangement. In-situ observations using a high-resolution transmission electron microscope were also performed to elucidate the science behind the atomic rearrangement. In addition, to quantitatively evaluate the quality of thin films, which is important for applications, we investigated the mechanical and electrical properties of thin films before and after the application of electric current. To achieve the objectives, the following three research goals were pursued under the three-year plan: 1. crystal structure analysis and material characterization of thin films, 2. visualization of dynamic behavior of atomic arrangement changes, and 3. construction of a theoretical model for the mechanical interaction between high-density high-frequency current and atoms.

Academic Significance and Societal Importance of the Research Achievements

本研究は,高周波の高密度電流がなす電子風力によって金属薄膜の原子配列を制御する世界初の研究であり,熱処理に依らない原子の再配列技術として材料科学分野を拡張する学術的に極めて高い独創性・創造性を有している.さらに,いままで結晶構造の制御が熱処理や結晶成長のみによって実現されてきた現状を打破し,新たに電子風力を基盤とした原子再配列法を世界に先駆けて発信することができる. これは,熱処理に依らない原子の再配列現象として従来熱力学的に捉えられてきた材料科学を拡張し,物理化学や固体物理,物性物理などの広い学問分野にも大きな波及効果が期待できる.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (34 results)

All 2023 2022 2021 2020

All Journal Article (14 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 14 results,  Open Access: 1 results) Presentation (20 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Influence of a high-density pulsed electric current on the fatigue behaviour of prestrained aluminium alloys2023

    • Author(s)
      Jung Jaewoong、Yoon Sungmin、Gu Shaojie、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Engineering Failure Analysis

      Volume: 150 Pages: 107230-107230

    • DOI

      10.1016/j.engfailanal.2023.107230

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Atom Rearrangement by Cyclic Electron “Shaking”2023

    • Author(s)
      Toku Yuhki、Kizawa Kurama、Kimura Yasuhiro、Ju Yang
    • Journal Title

      Advanced Engineering Materials

      Volume: 1 Issue: 12 Pages: 1-7

    • DOI

      10.1002/adem.202300115

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficiency improvement of fatigue crack healing by multiple high-density pulsed electric currents: Application to austenitic stainless steel2023

    • Author(s)
      Yoon Sungmin、Gu Shaojie、Li Shaoli、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Engineering Fracture Mechanics

      Volume: 284 Pages: 109235-109235

    • DOI

      10.1016/j.engfracmech.2023.109235

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantitative measurement of local conductivity of SnO<sub>2</sub> nanobelt field effect transistor utilizing microwave atomic force microscopy2022

    • Author(s)
      Zhao Minji、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Applied Physics Express

      Volume: 16 Issue: 1 Pages: 016501-016501

    • DOI

      10.35848/1882-0786/acaaf3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improvement of low-cycle fatigue life of austenitic stainless steel by multiple high-density pulsed electric currents2022

    • Author(s)
      Yoon Sungmin、Cui Yi、Kimura Yasuhiro、Gu Shaojie、Toku Yuhki、Ju Yang
    • Journal Title

      International Journal of Fatigue

      Volume: 156 Pages: 106639-106639

    • DOI

      10.1016/j.ijfatigue.2021.106639

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Rapid anisotropy recovery in deformed FCC metals by high-density pulsed electric current treatment2022

    • Author(s)
      Gu Shaojie、Cui Yi、Yoon Sungmin、Wang Zizheng、Kimura Yasuhiro、Toku Yuhki、Ju Yang
    • Journal Title

      Vacuum

      Volume: 197 Pages: 110855-110855

    • DOI

      10.1016/j.vacuum.2021.110855

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of Electric Current-Induced Improvement of Fracture Characteristics in SUS3162021

    • Author(s)
      Yoon Sungmin、Kimura Yasuhiro、Cui Yi、Toku Yuhki、Ju Yang
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 62 Issue: 6 Pages: 748-755

    • DOI

      10.2320/matertrans.MT-M2020333

    • NAID

      130008042828

    • ISSN
      1345-9678, 1347-5320
    • Year and Date
      2021-06-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative evaluation of local permittivity of semiconductor nanomaterials using microwave atomic force microscopy2021

    • Author(s)
      Zhao Minji、Tong Bo、Kimura Yasuhiro、Toku Yuhki、Morita Yasuyuki、Ju Yang
    • Journal Title

      Applied Physics Letters

      Volume: 118 Issue: 19 Pages: 193103-193103

    • DOI

      10.1063/5.0049619

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Assessment of creep behavior using a damage-coupled model for martensitic stainless steel2021

    • Author(s)
      YOON Sungmin、KIMURA Yasuhiro、TOKU Yuhki、JU Yang、PARK Soojeong、KIM Yunhae
    • Journal Title

      Mechanical Engineering Journal

      Volume: 8 Issue: 5 Pages: 21-00178-21-00178

    • DOI

      10.1299/mej.21-00178

    • NAID

      130008104596

    • ISSN
      2187-9745
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nanotwinning and tensile behavior in cold-welded high-entropy-alloy nanowires2021

    • Author(s)
      Cui Yi、Toku Yuhki、Ju Yang
    • Journal Title

      Nanotechnology

      Volume: 32 Issue: 31 Pages: 315716-315716

    • DOI

      10.1088/1361-6528/abf7eb

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preferential growth of specific crystal planes based on the dimension control of single crystal SnO2 nanobelts2021

    • Author(s)
      Y.Toku, Y.Togawa, Y.Morita and Y.Ju
    • Journal Title

      Materials Letters

      Volume: 285 Pages: 129121-129121

    • DOI

      10.1016/j.matlet.2020.129121

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The deformation mechanism in cold-welded gold nanowires due to dislocation emission2021

    • Author(s)
      Y.Cui, Y.Toku, Y.Kimura and Y.Ju
    • Journal Title

      Computational Materials Science

      Volume: 188 Pages: 110214-110214

    • DOI

      10.1016/j.commatsci.2020.110214

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-strain-rate void growth in high entropy alloys: Suppressed dislocation emission = suppressed void growth2020

    • Author(s)
      Y.Cui, Y.Toku, Y.Kimura and Y.Ju
    • Journal Title

      Scripta Materialia

      Volume: 185 Pages: 12-18

    • DOI

      10.1016/j.scriptamat.2020.03.056

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] True origin of the size effect in cold-welded metallic nanocrystals2020

    • Author(s)
      Y.Cui, Y.Toku, Y.Kimura and Y.Ju
    • Journal Title

      International Journal of Mechanical Sciences

      Volume: 187 Pages: 106102-106102

    • DOI

      10.1016/j.ijmecsci.2020.106102

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] 化学気相堆積法による ZnO ナノベルトの結晶成長 制御に関する研究2022

    • Author(s)
      菅沼 林太郎, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ti-6Al-4V における電流印加による転位挙動の動的観察2022

    • Author(s)
      礒井 宙, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] ナノスカイビング法を用いた相変化ナノワイヤの創製2022

    • Author(s)
      白澤 拓磨, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] Cu2O ナノ構造体への表面修飾による太陽光水分 解における耐久性の向上2022

    • Author(s)
      立木 真太郎, 巨 陽, 徳 悠葵, 木村 康裕
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] 太陽光水分解のための応力誘起原子拡散法によ る高安定高密度 Fe2O3 ナノワイヤアレイの合成2022

    • Author(s)
      Mahmud Md Sultan, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] Fe2O3/Cu コアシェルナノワイヤ光電極を利用した 高効率太陽光水素変換デバイスの開発2022

    • Author(s)
      髙木 龍, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高周波電流を利用した Ti-6Al-4V の機械的性質向 上に関する研究2022

    • Author(s)
      堀田 一馬, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] 機械的伸縮刺激を用いた hMSC-SCX の腱細胞へ の分化に関する研究2022

    • Author(s)
      磯部 昂汰, 木村 康裕, 徳 悠葵, 巨 陽
    • Organizer
      日本機械学会M&M2022,材料力学カンファレンス
    • Related Report
      2022 Annual Research Report
  • [Presentation] 薄膜の結晶方位および下地材料が応力誘導ナノワイヤ成長に及ぼす影響2021

    • Author(s)
      山田秀幸,巨陽,徳悠葵,木村康裕
    • Organizer
      日本機械学会M&M2021,材料力学カンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] コアシェル型DDS キャリアの薬剤担持量向上に関する研究2021

    • Author(s)
      角田浩基,巨陽,徳悠葵,木村康裕
    • Organizer
      日本機械学会M&M2021,材料力学カンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高密度パルス電流による純チタン結晶組織への影響2021

    • Author(s)
      丸本裕貴,巨陽,徳悠葵,木村康裕
    • Organizer
      日本機械学会M&M2021,材料力学カンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高周波電流による薄膜密着強度の向上に関する研究2021

    • Author(s)
      彭彦鴻,巨陽,徳悠葵,木村康裕
    • Organizer
      日本機械学会M&M2021,材料力学カンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高周波電流を利用した金属薄膜内原子配列の高秩序化に関する研究2021

    • Author(s)
      安田和弘,巨陽,徳悠葵,木村康裕
    • Organizer
      日本機械学会M&M2021,材料力学カンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] 銅ナノワイヤ面ファスナー接合強度の向上2021

    • Author(s)
      杉浦圭,巨陽,徳悠葵,木村康裕
    • Organizer
      日本機械学会M&M2021,材料力学カンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高密度パルス電流による予ひずみを有するインコネル 718 の加工硬化の緩和2021

    • Author(s)
      Shaojie Gu,巨陽,徳悠葵,木村康裕
    • Organizer
      日本機械学会M&M2021,材料力学カンファレンス
    • Related Report
      2021 Annual Research Report
  • [Presentation] Fatigue damage recovery of austenitic stainless steel by high-density pulsed electric current2021

    • Author(s)
      Sungmin YOON,巨陽,徳悠葵,木村康裕
    • Organizer
      日本金属学会,2021年秋期(第169回)講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] On Selective Fabrication of Metallic Micro/Nanomaterials in Electromigration-Based Injection System2021

    • Author(s)
      Yuta Ito, Yasuhiro Kimura, Yuhki Toku, Yang Ju
    • Organizer
      ICNB2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高周波高密度電流が銅薄膜の密着強度に及ぼす影響2020

    • Author(s)
      安田和弘,木村康裕,徳悠葵,巨陽
    • Organizer
      2020年度日本機械学会年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] エレクトロマイグレーションによる金属マイクロ・ナノワイヤ創製のための機構開発2020

    • Author(s)
      伊藤佑太,木村康裕,徳悠葵,巨陽
    • Organizer
      2020年度日本機械学会年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] A System for the Fabrication of Metallic Micro/Nanowire Based on Electromigration2020

    • Author(s)
      Yuta Ito, Yasuhiro Kimura, Yuhki Toku, and Yang Ju
    • Organizer
      33rd International Microprocesses and Nanotechnology Conference (MNC2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2024-01-30  

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