Nano-Frictional Characteristics of Lateral Strained-Layer Superlattices - Search for Guiding Principles to Design Articial Tribo-Materials -
نویسندگان
چکیده
Based on molecular dynamics search for laws of wearless friction accompanying steady sliding motion between mesoscopic crystal lattices, we have been developing Phonon-Band Engineering approaches [1] to design arti cial materials of desired tribological characteristics for nano-electromechanical systems (NEMS) by utilizing the up-to-date nano-fabrication technology. In the present study, we revealed several unique nano-frictional characteristics common to lateral strained-layer superlattices, with the help of visualization of the spatial distribution of the local quasi-temperature [2],[3]. Further insights into the spatial selection rule of phonon-mode excitation underlying these unique frictional features were obtained by analyses using the arti cially arranged kinetic (ARAKI) model. These results support the phonon mechanism proposed to explain the velocity-dependent threshold phenomena in our previous investigation [2].
منابع مشابه
Temperature-controlled molecular dynamics study on Velocity-Dependent Threshold Behavior of Nano-Friction - Search for Guiding Principles to Design Artificial Tribo-Materials -
In order to develop methods of designing artificial materials of desired tribological characteristics for nano-electromechanical systems (NEMS), a better atomistic understanding of wearless-frictional characteristics of mesoscopic solid materials is indispensable. We have searched for laws of wearless friction accompanying steady sliding motion between mesoscopic crystal lattices, by molecular ...
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