Open AccessMXene-graphene hybrid nanoflakes as friction modifiers for outboard engine oil
Author(s) -
Abdul Khaliq Rasheed,
Mohammad Khalid,
Ariff Farhan Mohd Nor,
Wai Yin Wong,
Tuerxun Duolikun,
Varun Natu,
Michel W. Barsoum,
Bey Fen Leo,
Haizum Aimi Zaharin,
Mariyam Jameelah Ghazali
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/834/1/012039
Subject(s) - materials science , tribology , couette flow , nanoparticle , shear rate , graphene , viscosity , thermal conductivity , composite material , nanofluid , rheology , shear (geology) , chemical engineering , nanotechnology , flow (mathematics) , geometry , mathematics , engineering
MXenes are a relatively new type of two-dimensional materials which remain largely unexplored in terms of tribological applications. In this research, hybrid comprising Ti3C2-NG (MXene-Nitrogen-doped Graphene) is synthesized in an attempt to enhance the thermal and tribological properties of Outboard Marine Engine Oil. Oil sample were prepared using the two-step method which involved optimization of mixing technique and followed by tests according to ASTM standards. Results revealed that the thermal conductivity of the oil is enhanced by 6.62% for 15 minutes high shear blending whereas the viscosity is reduced by 4.71%. The decrease in viscosity could be as a result of pockets of debilitated intermolecular bonds in oil due to nanoparticles addition. Further, the Newtonian behaviour oil remains unchanged with the addition of nanoparticles. However, increasing shear rate revealed dilatant behaviour of the nanofluids corresponding to Taylor-Couette flow. The hybrid nanoflakes doesn’t significantly alter the anti-friction and anti-wear behaviour of the oils although the coefficient of friction is decreased in the presence of 0.01 wt.% Ti3C2 additive nanoparticle by a marginal <1%.