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2006 Fiscal Year Final Research Report Summary

Research of Nanotribology with Central Focuses on Carbon Nanotubes

Research Project

Project/Area Number 16206019
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Design engineering/Machine functional elements/Tribology
Research InstitutionKobe University

Principal Investigator

OHMAE Nobuo  Kobe University, Faculty of Engineering, Professor, 工学部, 教授 (60029345)

Co-Investigator(Kenkyū-buntansha) YASUDA Hidehiro  Kobe University, Faculty of Engineering, Professor, 工学部, 教授 (60210259)
TAGAWA Masahito  Kobe University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (10216806)
Project Period (FY) 2004 – 2006
KeywordsNanotribology / Carbon nanotube / Onion like carbon / Fullerene / Atomic Force Microscopy
Research Abstract

The aim of this study was to investigate nanotribological properties of advanced carbon materials with focuses on carbon nanotube and further to guide the way of applying these materials to nano and micro machines, magnetic recording systems for the next generation and bio-nano devices. Analytical discussion was made from the results mainly obtained by atomic force microscopy both in air and in vacuum. New and unique tribological properties of carbon nanotubes can be written as: At μ Newton applied forces, carbon nanotubes provided null adhesion, whereassuperhigh friction coefficient of 10^0, exhibited little dependence on tip radius and hardness of the counter face, on sliding speed, and on humidity of environment, and showed no plowing and no wear. At mNewton applied forces, carbon nanotubes showed lowered friction coefficient of 10^<-1>, because of their deformed transformation into graphite sheet at the sliding interface, and at Newton applied forces, carbon nanotubes showed low friction coefficient of 10^<-2>, and predominant low friction coefficient resulted with a use of lubrication oil. Carbon nanotubes created self-assembled structure under friction processes, and are promising as nanolubricant in lubricating oil. At nNewton applied forces in ultrahigh vacuum, it is possible to distinguish van der Waals forces from π-π* interaction by selecting a material contacting with the single carbon nanotube. Onion like carbon showed low friction coefficient of 0.005 in UHV, and is also promising as low friction material usable both in vacuum and in oil. Fullerene C_<60> prepared by molecular beam epitaxy showed friction characteristics depending on applied forces. At nNewton applied forces, medium friction resulted, while over mNewton applied forces, high friction that caused interruption of motion occurred. Therefore, sling/stopping of nano and micro machines can be designed by effectively making use of nanotribological properties of these advanced carbon materials.

  • Research Products

    (22 results)

All 2007 2006 2005 2004

All Journal Article (19 results) Book (3 results)

  • [Journal Article] Application of onion-like carbon to micro and nanotribology2007

    • Author(s)
      N.Matsumoto
    • Journal Title

      Diamond and Related Materials 16・4-7

      Pages: 227-1230

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Atomic Structure and Field Evaporation of Carbon Nanotubes Studied by Atom Probe Field Ion Microscopy2007

    • Author(s)
      N.Ohmae
    • Journal Title

      Diamond and Related Materials 16・4-7

      Pages: 1179-1182

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Application of onion-like carbon to micro and nanotribology2007

    • Author(s)
      N.Matsumoto, L.Joly-Pottuz, H.Kinoshita, N.Ohmae
    • Journal Title

      Diamond and Related Materials Volume 16, Issues 4-7

      Pages: 227-1230

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Atomic Structure and Field Evaporation of Carbon Nanotubes Studied by Atom Probe Field Ion Microscopy2007

    • Author(s)
      N.Ohmae, N.Matsumoto, T.Ohata, H.Kinoshita
    • Journal Title

      Diamond and Related Materials Volume 16, Issues 4-7

      Pages: 1179-1182

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Humidity effects on tribology of advanced carbon materials2006

    • Author(s)
      N.Ohmae
    • Journal Title

      Tribology International 39・12

      Pages: 1497-1502

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Humidity effects on tribology of advanced carbon materials2006

    • Author(s)
      N.Ohmae
    • Journal Title

      Tribology International Volume 39,Issue 12

      Pages: 1497-1502

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Influence of humidity on microtribology of vertically aligned carbon nanotube film2005

    • Author(s)
      V.Turq
    • Journal Title

      Tribology Letters 19・1

      Pages: 23-28

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Transformation of diamond nanoparticles into onion-like carbon by electron irradiation studied directly inside an ultrahigh-vacuum transmission electron microscope2005

    • Author(s)
      J.Hiraki
    • Journal Title

      Applied Physics Letters 86

      Pages: 223101-223103

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Influence of humidity on microtribology of vertically aligned carbon nanotube film2005

    • Author(s)
      V.Turq, N.Ohmae, J.M.Martin, J.Fontaine, H.Kinoshita, J.L.Loubet
    • Journal Title

      Tribology Letters Volume 19, Number 1

      Pages: 23-28

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Transformation of diamond nanoparticles into onion-like carbon by electron irradiation studied directly inside an ultrahigh-vacuum transmission electron microscope2005

    • Author(s)
      J.Hiraki, H.Mori, E.Taguchi, H.Yasuda, H.Kinoshita, N.Ohmae
    • Journal Title

      Applied Physics Letters Volume 86

      Pages: 223101- 223103

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Microtribology2005

    • Author(s)
      N.Ohmae
    • Journal Title

      Kikai kougaku binran (Maruzen)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 「研究成果報告書概要(欧文)」より2005

    • Author(s)
      N.OhmaeJ.M.Martin, S.Mori
    • Journal Title

      Micro and Nanotribology (ASME Press, NY)

  • [Journal Article] High growth rate of vertically aligned carbon nanotubes using a plasma shield in microwave plasma-enhanced chemical vapor deposition2004

    • Author(s)
      H.Kinoshita
    • Journal Title

      Carbon 42・12-13

      Pages: 2753-2755

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] High friction of vertically aligned carbon nanotube film in microtribology2004

    • Author(s)
      H.Kinoshita
    • Journal Title

      Applied Physics Letters 85・14

      Pages: 2780-2781

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Effect of water adsorption on the microtribological properties of hydrogenated diamond-like carbon films2004

    • Author(s)
      M.Tagawa
    • Journal Title

      Tribology Letters 17・3

      Pages: 575-580

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] High growth rate of vertically aligned carbon nanotubes using a plasma shield in microwave plasma-enhanced chemical vapor deposition2004

    • Author(s)
      H.Kinoshita, I.Kume, H.Sakai, M.Tagawa, N.Ohmae
    • Journal Title

      Carbon, Volume 42, Issues 12-13

      Pages: 2753-2755

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] High friction of vertically aligned carbon nanotube film in microtribology2004

    • Author(s)
      H.Kinoshita, I.Kume, M.Tagawa, N.Ohmae
    • Journal Title

      Applied Physics Letters Volume 85, Number 14

      Pages: 2780-2781

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effect of water adsorption on the microtribological properties of hydrogenated diamond-like carbon films2004

    • Author(s)
      M.Tagawa, M.Ikemura, Y.Nakayama, N.Ohmae
    • Journal Title

      Tribology Letters Vol.17, No.3

      Pages: 575-580

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Micro-and Nanotribology2004

    • Author(s)
      N.Ohmae
    • Journal Title

      Tribology of Mechanical Systems : a Guide to Present and Future Technologies (J. Vizintin et al. edited) (ASME Press, NY)

      Pages: 267-278

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] 機械工学便覧、デザイン編β42005

    • Author(s)
      大前伸夫
    • Total Pages
      232
    • Publisher
      丸善
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Micro and Nanotribology2005

    • Author(s)
      N.Ohmae
    • Total Pages
      182
    • Publisher
      ASME Press
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Tribology of Mechanical Systems : a Guide to Present and Future Technologies2004

    • Author(s)
      N.Ohmae
    • Total Pages
      327
    • Publisher
      ASME Press
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2008-05-27  

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