The tribological behavior of Polyalphaolefin oil (PAO4) with the inclusion of Cu/MnS nanocomposites was investigated experimentally and compared with the behavior of the base oil operating with individual Cu and MnS nanoparticles. Cu/MnS nanocomposites with an average size of 98 nm were synthesized and used as additives in PAO4 base oil with concentrations of 0.2, 0.4, 0.6, 0.8, 1.0, and 1.2 Wt%. Using a standard four-ball testing machine, the tribological properties of oil containing Cu/MnS nanocomposites were examined between steel/steel contacts. Using the friction torque data, the Coefficient of Friction (COF) was determined. A Scanning Electron Microscope (SEM) was used to analyze the Wear Scar Diameters (WSD) of the balls, which were also equipped with an Energy-Dispersive X-ray spectroscope (EDX). PAO4 oil with Cu/MnS composites shown a better tribological performance than oil with mono nanoparticles. Also, among all samples, base oil with 0.6 wt. % concentration of Cu/MnS nanocomposites yielded excellent results. The COF decreased by 69.7%. The decrease in friction coefficient is due to the formation of a protective layer as a result of nanoparticles deposition on the rubbing surfaces. The wear behavior was modified due to the change during the frictional process from sliding friction to rolling friction.
ZhouJFWuZZhangZ,et al.Tribological behavior and lubricating mechanism of Cu nanoparticles in oil. Tribol Lett2000; 8: 213–218.
2.
ZhangMWangXLiuW,et al.Performance and anti-wear mechanism of Cu nanoparticles as lubricating oil additives. Ind Lubr Tribol2009; 61: 311–318.
3.
ChouRHernandezBACabelloJJ,et al.Tribological behavior of polyalphaolefin with the addition of nickel nanoparticles”. Tribol Int2010; 43: 2327–2332.
4.
CastanedaMFCampsECamachoLM,et al.Bismuth nanoparticles synthesized by laser ablation in lubricant oils for tribological tests. J Alloys Compd2015; 643: 567–570.
5.
DeXPKangYChenSK,et al.Dispersion and tribological properties of liquid paraffin with added aluminum nanoparticles. Ind Lubr Tribol2010; 62: 341–348.
6.
YangGZhangZZhangZ,et al.Synthesis and characterization of highly stable dispersions of copper nanoparticles by a novel one-pot method. Mater Res Bull2013; 48: 1716–1719.
7.
ZhangYXuYYangY,et al.Synthesis and tribological properties of oil-soluble copper nanoparticles as environmentally friendly lubricating oil additives. Ind Lubr Tribol2015; 67: 227–232.
8.
WangJGuoXCHeY,et al.The synthesis and tribological characteristics of triangular copper nanoplates as a grease additive. RSC Adv2017; 7: 40249–40254.
9.
ThottackkadMVPerikinanlilRKKKumarapillaiPN. Experimental evaluation on the tribological properties of coconut oil by the addition of CuO nanoparticles. Int J Prec Eng Manuf2012; 13: 111–116.
10.
VermaAJiangWHusamH,et al.Tribological behavior of deagglomerated active inorganic nanoparticles for advanced lubrication. Tribol Trans2008; 51: 673–678.
11.
LeeKHwangYCheongS,et al.Performance evaluation of nano-lubricants of fullerene nanoparticles in refrigeration mineral oil. Curr Appl Phys2009; 9: e128–e131.
12.
XuYGengJPengY,et al.Lubricating mechanism of Fe3O4 @ MoS2 core-shell nanocomposites as oil additives for steel/steel contact. Tribol Int2018; 121: 241–251.
13.
ShiyuMAZhengSDingH,et al.Anti-wear and reduce-friction ability of ZrO2/SiO2 self-lubricating composites. Adv Mater Res2009; 79–82: 1863–1866.
14.
LiYYangJSongH. Monodisperse Cu nanoparticles @ MoS2 nanosheets as a lubricating additive for improved tribological properties. Appl Surf Sci2019; 494: 430–439.
15.
LuoTWeiXZhaoH,et al.Tribology properties of Al2O3/TiO2 nanocomposites as lubricant additives. Ceram Int2014; 40: 10103–10109.
16.
MangamVSumitBCDasK,et al.Friction and wear behavior of Cu-CeO2 nanocomposite coatings synthesized by pulsed electrodeposition. Surf Coat Technol2010; 205: 801–805.
17.
LiWChenQZhangW,et al.B2O3/Al2O3 Nanocomposites as lubricant oil additives to save friction-Induced energy waste. Eng Sci2022; 18: 10–17.
18.
AbdulSMOmarSAAbbasSH,et al.Tribological behavior of Aluminum hybrid nanocomposites reinforced with Alumina and Graphene Oxide. Materials (Basel)2022; 18: 865.
19.
JianlinSChenglinGChenglongW,et al.Tribological behavior of graphene Oxide-Fe3O4 nanocomposites for additives in water-based lubricants. Fuller Nanotub Carbon Nanostructures2022; 30: 863–872.
20.
ViescaJLHernandezBettezAGonzalezR,et al.Antiwear properties of carbon-coated copper nanoparticles used as an additive to a polyalphaolefin. Tribol Int2011; 44: 829–833.
21.
RajubhaiVHSinghYSutharK,et al.Friction and wear behavior of Al-7% Si alloy pin under pongamia oil with copper nanoparticles as additives. Mater Today Proc2020; 25: 695–698.
22.
YangPZhaoXLiuY,et al.Preparation and tribological properties of dual-coated CuO nanoparticles as water-based lubricant additives. J Nanosci Nanotechnol2016; 16: 9683–9689.
23.
JiaoDZhengSWangY,et al.The tribology properties of alumina/silica composite nanoparticles as lubricant additives. Appl Surf Sci2011; 257: 5720–5725.
24.
LiWZhengSCaoB,et al.Friction and wear properties of ZrO2/SiO2 composite nanoparticles. J Nanopart Res2011; 13: 2129–2137.
25.
JiaXHuangJLiY,et al.Monodisperse Cu nanoparticles @ MoS2 nanosheets as lubricating additives for improved tribological properties. Appl Surf Sci2019; 494: 430–439.
26.
VaralakshmiMVVenugopal ReddyV. Tribological properties of ZnMn2O4/ZnFe2O4 nanocomposites as lubricating additives in PAO4. Adalya J2021; 20: 164–170.
27.
ZhangQWuBSongR,et al.Preparation, characterization and tribological properties of polyaphaolefin with magnetic reduced graphene oxide/Fe3O4. Tribol Int2020; 141: 105952.
28.
AguilarMSEsparzaRRosasG. Synthesis of Cu nanoparticles by chemical reduction method. Trans Nonferrous Met Soc2019; 29: 1510–1515.
29.
RaoSSDurgaIKNareshB,et al.One-pot hydrothermal synthesis of novel Cu/MnS with PVP cabbage-like nanostructures for high-performance supercapacitors. Energies2018; 11: 1590.
30.
GuoZZhangYWangJ,et al.Interactions of Cu nanoparticles with conventional lubricant additives on tribological performance and some physicochemical properties of an ester base oil. Tribol Int2020; 141: 105941.
31.
RamachandranRMuruganSAndrewsNG,et al.Mns nanocomposites based on doped graphene: simple synthesis by a wet chemical route and improved electrochemical properties as an electrode material for supercapacitors. RSC Adv2017; 7: 2249–2257.
32.
KreivaitisRGumbyteM. Investigation of mixture of vegetable oil and synthetic esters as environmentally friendly base stock for low-temperature lubrication applications. Tribol Ind2018; 40: 401–409.
33.
FengYFangJLiuP,et al.Preparation and tribological behaviors of plasma-sprayedNiAl-Cu/graphite nanosheets composite coating. Tribol Int2022; 167: 107360.
34.
ZhuLYiMWangL,et al.Effects of foam copper on the mechanical properties and tribological properties of graphite/copper composites. Tribol Int2020; 148: 106164.
35.
SongXQiuZYangX, et al.Submicron-lubricant based on crystallized Fe3O4 spheres for enhanced tribology performance. Chem Mater2014; 26: 5113–5119.
36.
LauraPPJaimeTTLorenaG,et al.Effect of CuO and Al2O3 nanoparticles additives on the tribological behavior of fully formulated oils. Wear2015; 332–333: 1256–1261.
