Tribological Performance of Hexagonal Boron Nitride (h-BN) Nanoparticle Additives in Multigrade Motorcycle Engine Oils

Bahrom, Mohd Zaki and Manshoor, Bukhari and Talib, Norfazillah and Zaman, Izzuddin and Didane, Djamal Hissein and Abdul Haq, Reazul Haq and Abdul Ghafir, Mohammad Fahmi and Kamarudin, Kamarul-Azhar and Abdul Murat, Noor Azammi and Mohamed, Zulkifli and Mondal, Mithun (2025) Tribological Performance of Hexagonal Boron Nitride (h-BN) Nanoparticle Additives in Multigrade Motorcycle Engine Oils. Journal of Advanced Research in Micro and Nano Engineering, 29 (1). pp. 91-103. ISSN 2756-8210

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Official URL: https://doi.org/10.37934/armne.29.1.91103

Abstract

This study uses a four-ball tribometer to examine the tribological performance of multigrade motorcycle engine oil and hexagonal boron nitride (h-BN) nanoparticle-based lubricants. The study involves the formulation of different concentrations of nanolubricant (0.025 wt%, 0.05 wt%, 0.1 wt%, 0.25 wt%, and 0.5 wt%) and characterisation by UV-spectroscopy for dispersion analysis. The viscosity of the nanolubricant was measured using a viscometer. The study results show that h-BN nanoparticle additives significantly improve the coefficient of friction (COF) and wear scar diameter (WSD) of the ball compared to motorcycle engine base oil 4T SAE 20W40. Specifically, the COF and WSD were found to be 12.5% and 16.6%, respectively, higher in the case of h-BN nanoparticle additives than the base oil. These results suggest that nanolubricants can considerably reduce the COF and worn surface compared to motorcycle engine base oil. Overall, this study demonstrates the potential of h-BN nanoparticle-based lubricants to enhance tribological performance and reduce the environmental impact of mechanical systems. These findings could have significant implications for the performance and lifespan of mechanical systems across various industries. Further research in this area is necessary to optimise the formulation and application of such lubricants.

Item Type:	Article
Uncontrolled Keywords:	h-BN nanoparticles; four-ball tribometer; motorcycle engine oil; nanolubricants; friction and wear
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Mechanical and Manufacturing Engineering > FKMP
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	21 Oct 2025 07:48
Last Modified:	21 Oct 2025 07:49
URI:	http://eprints.uthm.edu.my/id/eprint/13274

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