PFPE-Z lubricant thin films in molecular dynamics simulations - shear thinning and friction law

C Pirghie and AC Pirghie and S Eder and F Franek, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 7, 434-438 (2013).

A molecular dynamics simulation study has been conducted in order to point out the effect of steady shear and loading pressure on lubricant thin films. The model used in these simulations is composed of two solid walls and PFPE-Z lubricant. We apply steady shear by moving the walls in opposite directions while at the same time the upper wall exerts a constant load. The lubricant's properties are investigated focusing on the shear thinning phenomenon and friction law. The obtained results could be used to improve computer hard disk systems.

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