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    Tribological Behavior of Aligned Single-Walled Carbon Nanotubes

    Source: Journal of Engineering Materials and Technology:;2004:;volume( 126 ):;issue: 003::page 258
    Author:
    Xinling Ma
    ,
    Hongtao Wang
    ,
    Wei Yang
    DOI: 10.1115/1.1752924
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: An abnormal friction law refers to the case where the friction force does not increase monotonically with the normal pressure. We investigate the possibility of abnormal tribological behavior for two surfaces coated with aligned single-walled carbon nanotubes (SWCNTs). Detailed molecular dynamics simulations for aligned SWCNTs predict modulated variation between the kinetic friction force and the applied pressure. The interacting SWCNTs float with respect to each other at about the equilibrium separation of van der Waals interaction, and the wavy contact profile breaks the symmetry of the contacting cross-section. Cases treated by molecular dynamics simulation include two aligned (10,10) SWCNTs with periodic end conditions, and a stack of three aligned (10,10) SWCNTs with free end boundary conditions. A continuum theory based on the wall deflection under finite deformation, in combination with an adhesion criterion similar to the JKR theory, on the other hand, predicts a declining law between the frictional force and the pressure. The correlation of the data obtained through the atomistic and the continuum approaches relies on a deeper understanding on the friction process among SWCNTs.
    keyword(s): Force , Tribology , Single-walled carbon nanotubes , Molecular dynamics simulation , Friction , Van der Waals forces , Pressure AND Atoms ,
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      Tribological Behavior of Aligned Single-Walled Carbon Nanotubes

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    http://yetl.yabesh.ir/yetl1/handle/yetl/130112
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    contributor authorXinling Ma
    contributor authorHongtao Wang
    contributor authorWei Yang
    date accessioned2017-05-09T00:13:08Z
    date available2017-05-09T00:13:08Z
    date copyrightJuly, 2004
    date issued2004
    identifier issn0094-4289
    identifier otherJEMTA8-27060#258_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/130112
    description abstractAn abnormal friction law refers to the case where the friction force does not increase monotonically with the normal pressure. We investigate the possibility of abnormal tribological behavior for two surfaces coated with aligned single-walled carbon nanotubes (SWCNTs). Detailed molecular dynamics simulations for aligned SWCNTs predict modulated variation between the kinetic friction force and the applied pressure. The interacting SWCNTs float with respect to each other at about the equilibrium separation of van der Waals interaction, and the wavy contact profile breaks the symmetry of the contacting cross-section. Cases treated by molecular dynamics simulation include two aligned (10,10) SWCNTs with periodic end conditions, and a stack of three aligned (10,10) SWCNTs with free end boundary conditions. A continuum theory based on the wall deflection under finite deformation, in combination with an adhesion criterion similar to the JKR theory, on the other hand, predicts a declining law between the frictional force and the pressure. The correlation of the data obtained through the atomistic and the continuum approaches relies on a deeper understanding on the friction process among SWCNTs.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleTribological Behavior of Aligned Single-Walled Carbon Nanotubes
    typeJournal Paper
    journal volume126
    journal issue3
    journal titleJournal of Engineering Materials and Technology
    identifier doi10.1115/1.1752924
    journal fristpage258
    journal lastpage264
    identifier eissn1528-8889
    keywordsForce
    keywordsTribology
    keywordsSingle-walled carbon nanotubes
    keywordsMolecular dynamics simulation
    keywordsFriction
    keywordsVan der Waals forces
    keywordsPressure AND Atoms
    treeJournal of Engineering Materials and Technology:;2004:;volume( 126 ):;issue: 003
    contenttypeFulltext
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