Tribological Properties Investigation For Nanoparticle Enhanced Natural Oil-Based Lubricant

Mohamed Abdul Ghani, Nik Muhammad Hazwan (2017) Tribological Properties Investigation For Nanoparticle Enhanced Natural Oil-Based Lubricant. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Friction and wear are one of the main factors that affect the efficiency, performance, quality and life span of machinery system. The purpose of this study is to determine tribological properties of nanoparticles enhanced natural oil-based lubricants which consist of Refined Glycerine and Oleic Methyl Ester. Four ball tester experiments are carried out based on ASTM standard to evaluate the tribology properties of lubricants. The flash point and viscosity are taken at the lubricants to obtain the characteristics of these lubricants. The measurements of Coefficient of Friction and Wear Scar Diameter are taken at bearing ball for different types of lubricants. The difference in coefficient of friction and wear scar diameter for lubricant without and with additive are being investigated. The results obtained for coefficient of friction and wear scar diameter of lubricants are then compared with difference concentration of additive. The average coefficient of friction obtained from analysis for refined glycerine without and with additive show lower reading than oleic methyl ester. Lubricant with Carbon Nano Tube as additive show more preferred results compared to lubricant without additive in term of coefficient of friction. With increase the concentration of additive, all lubricants which is refined glycerine and oleic methyl ester only up to 3%wt of additive to get better result. More than 3%wt of additive, they continue increase the coefficient of friction. It happens during the homogenizing process, the lubricant cannot dissolve sufficiently with higher amount of additive. For wear scar diameter, refined glycerine with additive show the smallest reading compare to other. Based on the result, recommendations and suggestions are made to improve the accuracy of tribology test and tribology properties of lubricants.

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