Behaviours of ultra-thin lubricant films between solid surfaces having atomic scale roughness

T. Okumura, J. Sugimura, Y. Yamamoto

    Research output: Contribution to journalArticlepeer-review

    1 Citation (Scopus)

    Abstract

    Molecular dynamics simulations were conducted in order to study effects of mono-atomic scale steps on sliding surfaces on the dynamic behaviour of lubricant molecules under high pressure and shear. Hydrocarbons, including n-hexane, cyclohexane and n-hexadecane, were assumed as lubricants. Simulations were made such that two layers of lubricant molecules were formed. It was found that steps on the surfaces had dramatic effects on interactions between surface atoms and lubricant molecules. Movements of lubricant molecules, and thus traction between the surfaces, were affected by interactions between the molecules and those between the molecules and the roughness structure, both of which depended on the molecular structure of the lubricant.

    Original languageEnglish
    Pages (from-to)225-233
    Number of pages9
    JournalTribology Series
    Volume41
    DOIs
    Publication statusPublished - 2003

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

    Fingerprint Dive into the research topics of 'Behaviours of ultra-thin lubricant films between solid surfaces having atomic scale roughness'. Together they form a unique fingerprint.

    Cite this