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IMAI Hisashi  今井 久志

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今井 久志  イマイ ヒサシ

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Researcher Number 30452379
Affiliation (based on the past Project Information) *help 2019: 大阪大学, 接合科学研究所, 講師
2016: 大阪大学, 接合科学研究所, 講師
2014: 大阪大学, 接合科学研究所, 講師
2013: 大阪大学, 接合科学研究所, 特任講師
2011: 大阪大学, 接合科学研究所, 特任講師
2010: 大阪大学, 接合科学研究所, 特任研究員
2007 – 2008: 大阪大学, 接合科学研究所, 特任研究員
Review Section/Research Field
Principal Investigator
Composite materials/Surface and interface engineering / Material processing/Microstructural control engineering / Material processing/treatments
Except Principal Investigator
Material processing/Microstructural control engineering / Materials/Mechanics of materials
Keywords
Principal Investigator
複合材料 / 粉末冶金 / 表面・界面物性 / 複合材料・物性 / 炭素系ナノ材料 / アルミニウム / 銅 / 炭素系ナノ粒子 / 熱・電気特性 / CNT … More / 銅粉末 / 粉末冶金法 / 熱・電気伝導 / 単分散 / カーボンナノチューブ / 銅合金 … More
Except Principal Investigator
純チタン / 粉末プロセス / 粉末冶金 / 異方性 / マグネシウム / 強塑性加工 / 集合組織 / 降伏応力 Less
  • Research Projects

    (5 results)
  • Research Products

    (23 results)
  • Co-Researchers

    (4 People)
  •  Comprehensive understanding of light elements solid solution contributing to toughening of pure titanium sintered materials

    • Principal Investigator
      KONDOH KATSUYOSHI
    • Project Period (FY)
      2016 – 2019
    • Research Category
      Grant-in-Aid for Scientific Research (A)
    • Research Field
      Material processing/Microstructural control engineering
    • Research Institution
      Osaka University
  •  C=O二重結合を利用した金属-CFRPの接着剤フリー高信頼性接合技術の構築Principal Investigator

    • Principal Investigator
      今井 久志
    • Project Period (FY)
      2016
    • Research Category
      Grant-in-Aid for Challenging Exploratory Research
    • Research Field
      Composite materials/Surface and interface engineering
    • Research Institution
      Osaka University
  •  Development of the energy saving composite dispersed with carbon nano-particles with both high strength and thermal and electrical conductivityPrincipal Investigator

    • Principal Investigator
      IMAI Hisashi
    • Project Period (FY)
      2013 – 2014
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Material processing/Microstructural control engineering
    • Research Institution
      Osaka University
  •  Dramatic improvement in thermal and electrical properties of copper alloy with nano-structure controlPrincipal Investigator

    • Principal Investigator
      IMAI Hisashi
    • Project Period (FY)
      2010 – 2011
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Material processing/treatments
    • Research Institution
      Osaka University
  •  強加工マグネシウム合金の降伏現象発現メカニズムの解析

    • Principal Investigator
      KONDOH KATSUYOSHI
    • Project Period (FY)
      2007 – 2008
    • Research Category
      Grant-in-Aid for Exploratory Research
    • Research Field
      Materials/Mechanics of materials
    • Research Institution
      Osaka University

All 2017 2015 2014 2013 2011 Other

All Journal Article Presentation

  • [Journal Article] Study of twinning behavior of powder metallurgy Ti-Si alloy by interrupted in-situ tensile tests2017

    • Author(s)
      X.X. Ye, H. Imai, J.H. Shen, B. Chen, G.Q. Han, J. Umeda, K. Kondoh
    • Journal Title

      Materials Science & Engineering A

      Volume: 679 Pages: 543-553

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-16H02408
  • [Journal Article] Dynamic recrystallization behavior and strengthening-toughening effects in a near-α Ti-xSi alloy processed by hot extrusion2017

    • Author(s)
      X.X. Ye, H. Imai, J.H. Shen, B. Chen, G.Q. Han, J. Umeda, M. Takahashi, K. Kondoh
    • Journal Title

      Materials Science & Engineering A

      Volume: 684 Pages: 165-177

    • DOI

      10.1016/j.msea.2016.12.054

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16H02408
  • [Journal Article] The formation of bimodal multilayered grain structure and its effect on the mechanical properties of powder metallurgy pure titanium2017

    • Author(s)
      J. Shen, B. Chen, X. Ye, H. Imai, J. Umeda, K. Kondoh
    • Journal Title

      Materials and Design

      Volume: 116 Pages: 99-108

    • DOI

      10.1016/j.matdes.2016.12.004

    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-16H02408
  • [Journal Article] Enhanced Homogenization of Vanadium in Spark Plasma Sintering of Ti-10V-2Fe-3Al Alloy from Titanium and V-Fe-Al Master Alloy Powder Blends2017

    • Author(s)
      Y. F. Yang, H, Imai, K. Kondoh, M. Qian
    • Journal Title

      JOM

      Volume: 69 Issue: 4 Pages: 663-668

    • DOI

      10.1007/s11837-017-2271-4

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-16H02408
  • [Journal Article] Inter-Wall Bridging Induced Peeling of Multi-Walled Carbon Nanotubes during Tensile Failure in Aluminum Matrix Composites2015

    • Author(s)
      B. Chen, S. Li, H. Imai, J. Umeda, M. Takahashi, K. Kondoh
    • Journal Title

      Micron

      Volume: 69 Pages: 1-5

    • DOI

      10.1016/j.micron.2014.10.005

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] An approach for homogeneous carbon nanotube dispersion in Al matrix composites2015

    • Author(s)
      B. Chen, S. Li, H. Imai, L. Jia, J. Umeda, M. Takahashi, K. Kondoh
    • Journal Title

      Materials and Design

      Volume: 72 Pages: 1-8

    • DOI

      10.1016/j.matdes.2015.02.003

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] Load transfer strengthening in carbon nanotubes reinforced metal matrix composites via in-situ tensile tests2015

    • Author(s)
      B. Chen, S. Li, H. Imai, L. Jia, J. Umeda, M. Takahashi, K. Kondoh
    • Journal Title

      Composites Science and Technology

      Volume: 113 Pages: 1-8

    • DOI

      10.1016/j.compscitech.2015.03.009

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] Microstructural and Electrical Properties of Copper–Titanium Alloy Dispersed with Carbon Nanotubes via Powder Metallurgy Process2014

    • Author(s)
      H. Imai, K. Kondoh, S. Li, J. Umeda, B. Fugetsu, M. Takahashi
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 55 Issue: 3 Pages: 522-527

    • DOI

      10.2320/matertrans.Y-M2013846

    • NAID

      130004455283

    • ISSN
      1345-9678, 1347-5320
    • Language
      English
    • Peer Reviewed / Acknowledgement Compliant / Open Access
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] Characteristics of Lead-free Machinable Brass of Powder Metallurgy Cu-40 mass% Zn /1.0 mass% Mg with Graphite Particles2014

    • Author(s)
      H. Imai, H. Atsumi, S. Li, K. Kondoh
    • Journal Title

      Applied Mechanics and Materials

      Volume: 481 Pages: 79-85

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] Microstructural and Electrical Properties of Copper-titanium Alloy Dispersed with Carbon Nanotubes via Powder Metallurgy Process2014

    • Author(s)
      H. Imai, K. Kondoh, S. Li, J. Umeda, B. Fugetsu
    • Journal Title

      Materials Transactions

      Volume: 55 Pages: 522-527

    • NAID

      40020002996

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] Microstructure and Mechanical Properties of Cu–40%Zn–0.5%Cr Alloy by Powder Metallurgy2014

    • Author(s)
      H. Imai, S. Li, K. Kondoh, Y. Kosaka, T. Okada, K. Yamamoto, M. Takahashi, J. Umeda
    • Journal Title

      MATERIALS TRANSACTIONS

      Volume: 55 Issue: 3 Pages: 528-533

    • DOI

      10.2320/matertrans.Y-M2013847

    • NAID

      130004455284

    • ISSN
      1345-9678, 1347-5320
    • Language
      English
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] In Situ Synthesized Al4C3 Nanorods with Excellent Strengthening Effect in Aluminum Matrix Composites2014

    • Author(s)
      B. Chen, L. Jia, S. Li, H. Imai, M. Takahashi, K. Kondoh
    • Journal Title

      Advanced Engineering Materials

      Volume: 16 Issue: 8 Pages: 972-975

    • DOI

      10.1002/adem.201400232

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Journal Article] : Microstructure and Mechanical Properties of Cu-40%Zn-0.5%Cr Alloy by Powder Metallurgy2014

    • Author(s)
      H. Imai, S. Li, K. Kondoh, Y. Kosaka, T. Okada, K. Yamamoto, M. Takahashi, J. Umeda
    • Journal Title

      Materials Transactions

      Volume: 55 Pages: 528-533

    • NAID

      40020003004

    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Investigation of Powder Metallurgy Titanium Matrix Composites by Planetary Ball-milling of Ti Powder Dispersed with Vapour Grown Carbon Nanofibers2013

    • Author(s)
      S. Li, K. Kondoh, B. Sun, H. Imai, J. Umeda
    • Organizer
      Materials Science & Technology (MS&T) 2013
    • Place of Presentation
      Montreal, Canada
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Characteristics of lead-free machinable brass of powder metallurgy Cu-40 mass% Zn /1.0 mass% Mg with graphite particles2013

    • Author(s)
      H. Imai, H. Atsumi, S. Li, K. Kondoh
    • Organizer
      , 2013 2nd International Symposium on Quantum, Nano and Micro Technologies(ISQNM 2013)
    • Place of Presentation
      Singapore
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Effect of Titanium Addition on Mechanical and Electrical Properties of P/M Copper-Titanium Alloy Dispersed with Vapor-grown Carbon Fiber2013

    • Author(s)
      H. Imai, K. Kondoh, S. Li, J. Umeda
    • Organizer
      Materials Science & Technology (MS&T) 2013
    • Place of Presentation
      Montreal, Canada
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Ti微量添加銅合金粉末を用いた炭素系ナノ粒子分散複合材料の組織と諸特性2011

    • Author(s)
      今井久志, 近藤勝義
    • Organizer
      粉体粉末冶金協会平成23年度秋季大会
    • Place of Presentation
      大阪大学
    • Year and Date
      2011-10-27
    • Data Source
      KAKENHI-PROJECT-22760558
  • [Presentation] Effect of Alloying Elements on Mechanical Properties and Electrical Conductivity of P/M Copper Alloys Dispersed with Vapor-grown Carbon Fiber

    • Author(s)
      H. Imai, K. Kondoh
    • Organizer
      Materials Science & Technology 2014
    • Place of Presentation
      Pittsburg, USA
    • Year and Date
      2014-10-12 – 2014-10-16
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Dependence of carbon structure on machinability of P/M high strength brass composite with graphite particle

    • Author(s)
      H. Imai, K. Kondoh
    • Organizer
      ICM&P2014
    • Place of Presentation
      Detroit, USA
    • Year and Date
      2014-06-09 – 2014-06-13
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Effect of Chromium Behavior on Mechanical and Electrical Properties of P/m Copper-chromium Alloy Dispersed With VGCF

    • Author(s)
      Hisashi Imai, Kuan-yu Chen, Katsuyoshi Kondoh, Hung-yin Tsai, Junko Umeda
    • Organizer
      ICMSEM 2015
    • Place of Presentation
      Singapore
    • Year and Date
      2015-07-04 – 2015-07-05
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Comparing Strengthening Mechanisms of Vapor Grown Carbon Fiber vs. Titanium Carbide Reinforced PM Titanium

    • Author(s)
      F. Staub, K. Kondoh, J. Umeda, H. Imai
    • Organizer
      TMS 2015
    • Place of Presentation
      Orland, USA
    • Year and Date
      2015-03-15 – 2015-03-19
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] Crack Formation in Powder Metallurgy CNT/Al Composites during Post Heat Treatment

    • Author(s)
      B. Chen, L. Jia, H. Imai, K. Kondoh
    • Organizer
      TMS 2015
    • Place of Presentation
      Orland, USA
    • Year and Date
      2015-03-15 – 2015-03-19
    • Data Source
      KAKENHI-PROJECT-25820369
  • [Presentation] 添加元素が及ぼす VGCF 分散銅基複合粉末材料の力学および電気特性

    • Author(s)
      今井久志,近藤勝義
    • Organizer
      粉体粉末冶金協会 平成 26 年度春季大会(第 113 回講演大会)
    • Place of Presentation
      東京
    • Year and Date
      2014-06-03 – 2014-06-05
    • Data Source
      KAKENHI-PROJECT-25820369
  • 1.  KONDOH KATSUYOSHI (50345138)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 4 results
  • 2.  芹川 正 (10345168)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 3.  川端 健詞 (50432422)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 4.  梅田 純子 (50345162)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 3 results

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