The structural, tribological, and theological dependency of thin hexadecane film confined between iron and iron oxide surfaces under sliding conditions

TD Ta and AK Tieu and H Zhu and B Kosasih and Q Zhu and HT Phan, TRIBOLOGY INTERNATIONAL, 113, 26-35 (2017).

DOI: 10.1016/j.triboint.2016.12.001

Molecular dynamics simulations have been carried out to investigate the tribological, structural and rheological properties of thin fihn hexadecane confined between different iron and iron oxide surfaces. The interfacial slip becomes severe with the increase of loading pressure and shear rate but it is insensitive to temperature. The shear stress increases with the loading pressure whereas the coefficient of friction shows a contrasting propensity. The shear stress and coefficient of friction increase with shear rate; and decrease with higher surface temperature. A logarithmic function has been proposed to correlate the variation of friction with shear rate. The shear viscosity increases exponentially with the loading pressure but this rheological component levels off when the loading pressure exceeds a critical value.

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