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      • Record: found
      • Abstract: found
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      Study on frictional behavior of carbon nanotube thin films with respect to surface condition

      research-article

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          Abstract

          In this work, tribological characteristics of thin films composed of entangled carbon nanotubes (CNTs) were investigated. The surface roughness of CNT thin films fabricated via a dip-coating process was controlled by squeezing during the process with an applied normal force ranging from 0 to 5 kgf. Raman spectra and scanning electron microscopy (SEM) images of the thin films were obtained to estimate the influence of the squeezing process on the crystallinity of the CNTs. The analysis revealed that squeezing could reduce surface roughness, while preserving the crystallinity of the CNTs. Moreover, the surface energy of the cover glass used to press the CNT thin film was found to be the critical factor controlling surface roughness. A micro-tribometer and macro-tribometer were used to assess the tribological characteristics of the CNT thin film. The results of the tribotest exhibited a correlation between the friction coefficient and surface roughness. Dramatic changes in friction coefficient could be observed in the micro-tribotest, while changes in friction coefficient in the macro-tribotest were not significant.

          Most cited references31

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          Rotational actuators based on carbon nanotubes.

          A M Fennimore, T Yuzvinsky, Wei-Qiang Han … (2003)
          Nanostructures are of great interest not only for their basic scientific richness, but also because they have the potential to revolutionize critical technologies. The miniaturization of electronic devices over the past century has profoundly affected human communication, computation, manufacturing and transportation systems. True molecular-scale electronic devices are now emerging that set the stage for future integrated nanoelectronics. Recently, there have been dramatic parallel advances in the miniaturization of mechanical and electromechanical devices. Commercial microelectromechanical systems now reach the submillimetre to micrometre size scale, and there is intense interest in the creation of next-generation synthetic nanometre-scale electromechanical systems. We report on the construction and successful operation of a fully synthetic nanoscale electromechanical actuator incorporating a rotatable metal plate, with a multi-walled carbon nanotube serving as the key motion-enabling element.
          Article 0 comments Cited 228 times – based on 0 reviews     Review now
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            Raman spectroscopy on isolated single wall carbon nanotubes

            M.S. Dresselhaus, G Dresselhaus, A Jorio … (2002)
            Article 0 comments Cited 194 times – based on 0 reviews     Review now
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              Fully sealed, high-brightness carbon-nanotube field-emission display

              Y. Jin, I. T. Han, J. Jung … (1999)
              Article 0 comments Cited 181 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): Tsinghua Science and Technology
                Title: Friction
                Publisher: Tsinghua University Press (Xueyuan Building, Tsinghua University, Beijing 100084, China )
                ISSN (Print): 2223-7690
                Publication date (Print): 05 December 2018
                Volume: 06
                Issue: 04
                Pages: 432-442 (pp. )
                Affiliations
                [1]Department of Precision Mechanical Engineering, Kyungpook National University, 2559, Gyeongsang-daero, Sangju, Republic of Korea
                Author notes
                * Corresponding author: Hyun-Joon KIM, E-mail: hjoonkim@ 123456knu.ac.kr

                Youn-Hoo HWANG. He received his bachelor degree in Department of Precision Mechanical Engineering in 2017 from Kyungpook National University, Sangju, Republic of Korea. Currently, he is M.S. candidate at Kyungpook National University. His research interests include tribological characteristics of nanomaterial and wear reduction mechanism.

                Byung-Soo MYUNG. He received his M.S. and PhD degrees in mechanical engineering from Chungnam National University, Daejeon, Republic of Korea, in 1986 and 1993 respectively. He is currently chair of Department of Precision Mechanical Engineering, Kyungpook National University. His research interests are reduction of friction through vibration and contact characteristics during vibration.

                Hyun-Joon KIM. He received bachelor and PhD degrees in mechanical engineering from Yonsei University, Seoul, Republic of Korea, in 2005 and 2012, respectively. He joined Department of Precision Mechanical Engineering at Kyungpook National University as assistant professor from 2014. His current interests are AFM based nano-mechanics, micro-nano tribology, and molecular dynamics simulation.

                Article
                Publisher ID: 2223-7690-06-04-432
                DOI: 10.1007/s40544-017-0182-6
                SO-VID: e39fb8f5-3ef0-4542-a914-9ce763a011d6
                Copyright statement: Copyright @ 2018
                License:

                © The author(s) 2017. This article is published with open access at Springerlink.com

                Open Access: The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http:// creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

                History
                Date received : 16 May 2017
                Date: 03 July 2017
                Date accepted : 04 July 2017
                Page count
                Figures: 11, Tables: 1, References: 32, Pages: 11
                Categories
                Subject: Research Article

                ScienceOpen disciplines: Materials technology,Materials properties,Thin films & surfaces,Mechanical engineering
                Keywords: squeezing process,carbon nanotubes,friction,surface roughness,surface energy,UV irradiation
                Data availability:
                ScienceOpen disciplines: Materials technology, Materials properties, Thin films & surfaces, Mechanical engineering
                Keywords: squeezing process, carbon nanotubes, friction, surface roughness, surface energy, UV irradiation

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