Abstract
The paper analyzes the patterns of influence of the characteristics of silica nanoparticles on the friction coefficient and wear parameters during friction of a polymer nanocomposite (PNC) on a steel counterbody. The studies were performed theoretically using the method of movable cellular automata and experimentally according to the "block-on-ring" scheme. The size and shape of silica nanoparticles and the sliding velocity were varied. The model also took into account the temperature dependence of the mechanical properties of materials. It was found that the low friction properties of PNC are caused by changing the mechanical properties of the materials of a transition tribolayer under conditions of frictional heating. It was shown also that the size of the nanofiller affects the stability of friction and wear mode.
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