Measurement of maximum static frictional force using vertically-aligned carbon nanotubes

DOI
  • Fukuda Minori
    Department of Physics, Tokyo Institute of Technology Global Science Campus, Tokyo University of Science
  • Inoue Emi
    Department of Physics, Tokyo Science University
  • Shihommatsu Kota
    Department of Physics, Tokyo Science University
  • Shimizu Maki
    Department of Physics, Tokyo Science University
  • Homma Yoshikazu
    Department of Physics, Tokyo Science University Global Science Campus, Tokyo University of Science

Bibliographic Information

Other Title
  • 垂直配向カーボンナノチューブを用いた最大静止摩擦力の測定

Abstract

<p>According to the law of friction, the maximum static frictional force is proportional to the normal force. A Carbon nanotube (CNT) is a nano-size, and flexible material. Vertically-aligned (VA)-CNTs, which are growing with a high density and vertically to the substrate, can yield great friction force because of a large true contact area. To elucidate the property of nanoscale friction, we measured the VA-CNT’s friction force. We used two types of VA-CNTs: grown Fe and Co as the catalysts. In the small normal force range, the coefficient of static friction was higher than that in the bigger force range. This result is different from the law of friction, which indicates that the coefficient of static friction force is constant. Moreover, The Fe-catalyzed-CNTs yielded greater friction force than the Co-catalyzed-CNTs did. This can be explained by the morphology and crystallinity of those CNTs. Because the Fe-catalyzed-CNTs can contact the substrate surface closely, they can cause greater friction force.</p>

Journal

Details 詳細情報について

  • CRID
    1391412881268903424
  • NII Article ID
    130007959452
  • DOI
    10.14886/jvss.2020.0_270
  • ISSN
    24348589
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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