Evaluation of physicochemical and tribological performances of hBN/WS2 and hBN/TiO2 hybrid nanoparticles-MJO-based oil
This work aims to investigate the physicochemical and tribological performance of modified Jatropha oil (MJO) with the addition of 0.025 wt.% of hexagonal boron nitride (hBN) + Titanium dioxide (TiO2) (MJOht) and hBN + tungsten disulphide (WS2) (MJOhw). The physicochemical properties of the sam...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | en |
| Published: |
mytribos
2023
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/10598/1/J16562_c9d7927b070649e7b10b78bcb877a056.pdf http://eprints.uthm.edu.my/10598/ |
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| Summary: | This work aims to investigate the physicochemical and
tribological performance of modified Jatropha oil (MJO)
with the addition of 0.025 wt.% of hexagonal boron nitride
(hBN) + Titanium dioxide (TiO2) (MJOht) and hBN +
tungsten disulphide (WS2) (MJOhw). The physicochemical
properties of the samples were evaluated through
kinematic viscosity and viscosity index. Four ball test was
used to determine the tribological performance of the
samples. All the MJO samples were compared with the
benchmark oil, Synthetic Ester (SE). The result revealed
that MJOht has excellent physicochemical properties in
kinematic viscosity of 20.79 mm2/s at 40 °C and 6.29
mm2/s at 100 °C. MJOht also had the highest viscosity
index (288). For tribological performance, MJOhw has an
excellent coefficient of friction (COF) (0.0574) and lowest
surface roughness (Ra) (0.11 μm)., while MJOht shows a
smaller mean wear scar diameter (MWSD) (718.6 µm).
Overall, MJO with hybrid additives shows excellent
performance on physicochemical and tribological
properties and making it a feasible choice as a green
metalworking fluid. |
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