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Development of three-dimensional catalysts with metallic glass nanowires

Research Project

Project/Area Number 26870058
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Physical properties of metals/Metal-base materials
Nanomaterials engineering
Research InstitutionNagano National College of Technology (2015)
Tohoku University (2014)

Principal Investigator

YAGINUMA Shin  長野工業高等専門学校, その他部局等, 講師 (80516518)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsアモルファス合金 / ナノワイヤー / ガスアトマイズ / 触媒
Outline of Final Research Achievements

We have studied the formation mechanism of Pd-based metallic glass wires and droplets in the gas atomization process. The diameters can be reached to nanoscale and strongly related to the viscosity of molten alloys. We demonstrate that the numbers of droplets and wires can be distinguished by the Ohnesorge number (Oh), which is the proportion of the time scale of spinnability to that of capillary instability. The diameter distributions follow the log-normal distribution function that indicates cascade fragmentation. The median diameter is employed for evaluation criteria in the product diameter. For droplets, the number significantly increases at Oh < 1 but the diameter gradually decreases. For wires, the number greatly decreases at Oh < 1 while the diameter steadies below 400 nm. Further, the wire diameter is quadrupled at Oh = 16 due to the high viscosity which suppresses both capillary breakup and ligament elongation.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (12 results)

All 2015 2014 Other

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (6 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] Log-normal diameter distribution of Pd-based metallic glass droplet and wire2015

    • Author(s)
      Shin Yaginuma, Chihiro Nakajima, Naoto Kaneko, Yoshihiko Yokoyama, and Koji S. Nakayama
    • Journal Title

      Sci. Rep.

      Volume: 5 Issue: 1 Pages: 10711-10711

    • DOI

      10.1038/srep10711

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Hydrogels containing metallic glass sub-micron wires for regulating skeletal muscle cell behaviour2015

    • Author(s)
      S. Ahadian, R. B. Sadeghian, S. Yaginuma, J. Ram&#243;n-Azc&#243;n, Y. Nashimoto, X. Liang, H. Bae, K. Nakajima, H. Shiku, T. Matsue, K. S. Nakayama, and A. Khademhosseini
    • Journal Title

      Biomater. Sci.

      Volume: 3 Issue: 11 Pages: 1449-1458

    • DOI

      10.1039/c5bm00215j

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Log-normal diameter distribution of Pd-based metallic glass droplet and wire2015

    • Author(s)
      Shin Yaginuma, Chihiro Nakajima, Naoto Kaneko, Yoshihiko Yokoyama, and Koji S. Nakayama
    • Journal Title

      Scientific Reports

      Volume: 印刷中

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Metallic Glass Nanofibers in Future Hydrogel-based Scaffolds2014

    • Author(s)
      Ramin Banan Sadeghian, Samad Ahadian, Shin Yaginuma, Javier Ramón-Azcón, Xiaobin Liang, Ken Nakajima, Hitoshi Shiku, Tomokazu Matsue, Koji S. Nakayama, and Ali Khademhosseini
    • Journal Title

      Proc. 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

      Volume: - Pages: 5276-5279

    • DOI

      10.1109/embc.2014.6944816

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Presentation] Log-normal Diameter Distribution of Pd-based Metallic Glass Fiber2015

    • Author(s)
      Shin Yaginuma, Chihiro Nakajima, and Koji S. Nakayama
    • Organizer
      4th International Nanofiber Symposium (Nanofibers 2015)
    • Place of Presentation
      Tokyo Institute of Technology, Ookayama, Tokyo(東京都目黒区)
    • Year and Date
      2015-10-15
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] アモルファス合金ナノワイヤーの開発2015

    • Author(s)
      柳沼 晋,中山 幸仁
    • Organizer
      第76回応用物理学会秋季学術講演会
    • Place of Presentation
      名古屋国際会議場(愛知県名古屋市)
    • Year and Date
      2015-09-13
    • Related Report
      2015 Annual Research Report
  • [Presentation] アモルファス合金ファイバーに発現する対数正規分布則の解明2015

    • Author(s)
      柳沼晋,中島千尋,中山幸仁
    • Organizer
      ナノファイバー学会第6回年次大会
    • Place of Presentation
      東京大学 弥生講堂 一条ホール(東京都文京区)
    • Year and Date
      2015-07-06
    • Related Report
      2015 Annual Research Report
  • [Presentation] Log-normal diameter distribution of Pd-based metallic glass droplet and wire2015

    • Author(s)
      S. Yaginuma, C. Nakajima, Y. Yokoyama, and K. S. Nakayama
    • Organizer
      The AIMR International Symposium 2015 (AMIS 2015)
    • Place of Presentation
      Sendai International Center(宮城県仙台市)
    • Year and Date
      2015-02-17 – 2015-02-19
    • Related Report
      2014 Research-status Report
  • [Presentation] Temperature Dependence on the Droplet and Wire Formation of Pd-based Metallic Glass2014

    • Author(s)
      Shin Yaginuma, Yoshihiko Yokoyama and Koji S. Nakayama
    • Organizer
      The 2nd International Symposium on the Functionality of Organized Nanostructures 2014 (FON'14)
    • Place of Presentation
      Miraikan Hall, Aomi, Tokyo(東京都江東区)
    • Year and Date
      2014-11-27 – 2014-11-28
    • Related Report
      2014 Research-status Report
  • [Presentation] アモルファス合金ワイヤーと粉体の直径分布解析2014

    • Author(s)
      柳沼晋,横山嘉彦,中山幸仁
    • Organizer
      日本金属学会2014年秋期(第155回)講演大会
    • Place of Presentation
      名古屋大学東山キャンパス(愛知県名古屋市)
    • Year and Date
      2014-09-24 – 2014-09-26
    • Related Report
      2014 Research-status Report
  • [Remarks] アモルファス合金ワイヤーに発現する対数正規分布則の解明-材料科学と数学とのコラボ-

    • URL

      http://www.wpi-aimr.tohoku.ac.jp/jp/news/press/2015/20150602_000565.html

    • Related Report
      2015 Annual Research Report
  • [Remarks] アモルファス合金ワイヤーに発現する対数正規分布則の解明-材料科学と数学とのコラボ-

    • URL

      https://www.tohoku.ac.jp/japanese/2015/06/press20150528-02.html

    • Related Report
      2015 Annual Research Report

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Published: 2014-04-04   Modified: 2017-05-10  

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