Properties and tribological evaluation of graphene and fullerene nanoparticles as additives in oil lubrication

• Main Authors: Sharuddin, Muhammad Hazman, Sulaiman, Mohd Hafis, Kamaruddin, Shafie, Dahnel, Aishah Najiah, Abd Halim, Nor Farah Huda, Mohd Jamir, Mohd Ridzuan, Abdul-Rani, Ahmad Majdi
• Format: Article
• Language: English; English
• Published: SAGE Publications 2023
• Subjects: TJ Mechanical engineering and machinery; TJ181 Mechanical movements
• Online Access: http://irep.iium.edu.my/105232/7/105232_Properties%20and%20tribological.pdf; http://irep.iium.edu.my/105232/13/105232_%20Properties%20and%20tribological_Scopus.pdf; http://irep.iium.edu.my/105232/; https://journals.sagepub.com/doi/10.1177/13506501231175540; https://doi.org/10.1177/13506501231175540

In this study, SAE-0W20 engine oil was mixed with graphene and fullerene nanoparticles. The goal of this study was to evaluate and compare the effects of different carbon nanoparticles on the thermal, rheological, and tribological properties of engine oil, such as thermal degradation, viscosity, friction, and wear. Using a two-step process, graphene and fullerene nanostructures were dispersed in low-viscosity SAE-0W20 engine oil at a concentration of 0.05 wt.%. The friction and wear characteristics were evaluated in a customized cylindrical block-on-ring tribology test according to the ASTM G77 standard. Graphene and fullerene nanoparticles protect contact surfaces by forming a very thin protective film between moving mechanical parts thus resulting in wear and friction reduction. The results showed graphene nanoparticles have improved significantly the tribological performance of SAE-0W20 engine oil.