Molecular dynamics study of the frictional properties of silica nanoparticles in an amorphous state

A. I. Dmitriev, A. Yu Nikonov

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In the paper, simulation of the treatment of two silica crystals with an amorphous interlayer was carried out using the method of molecular dynamics. The three-body interatomic interaction suggested by Tersoff was used. We studied sliding behavior under two different thermal conditions: ambient and elevated temperature. The simulation results have revealed several processes realized in the contact area caused by a shear loading. Depending on temperature and value of external compression, we observed smooth sliding or stick-slip motion of silicon and oxygen atoms within amorphous interlayer. We compare the time dependencies of resistance forces for the studied specimens. In spite of loading conditions even in case of stick-slip sliding the mean value of resistance force for simulated specimens is very low. The last can explain the experimentally observed low friction properties of polymer nano-composite materials with silica nanoparticles inclusions.

    Original languageEnglish
    Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
    PublisherAmerican Institute of Physics Inc.
    Volume1783
    ISBN (Electronic)9780735414457
    DOIs
    Publication statusPublished - 10 Nov 2016
    EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016 - Tomsk, Russian Federation
    Duration: 19 Sep 201623 Sep 2016

    Conference

    ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016
    CountryRussian Federation
    CityTomsk
    Period19.9.1623.9.16

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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