Experimental Analysis of Tribological Properties of Simarouba Glauca Biodiesel With Nanoparticles

Biolubricants are renewable, biodegradable, nontoxic, and have zero greenhouse gases. In this work, the tribological properties of the Simarouba glauca biodiesel (SBD) are studied with nanoparticles as additives. Nanoparticles of copper oxide (CuO) and silicon dioxide (SiO2) were added with 0.2, 0.5, 0.75, and 1% weight (wt) in the base SBD. The coefficient of friction (COF) and the wear scar diameters (WSD) were evaluated using four ball tester for the test conditions as per ASTM D 4172 standard. The morphologies of the worn surfaces were inspected by scanning electron microscope (SEM). The addition of nanoparticles improved the friction and wear characteristics of SBD. A combination of abrasive and adhesive wear was evident. The average COF for pure SBD was 0.0168. The results indicated that 0.75% and 0.2% of CuO nanoparticles as a beneficial percentage in the base oil exhibiting the lowest COF and WSD. CuO nanoparticles proved to be superior to SiO2 nanoparticles as additives in SBD, demonstrating 8% and 60% decrease in wear and friction parameters, respectively.

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Experimental investigation of tribological effect on vegetable oil with CuO nanoparticles and ZDDP additives

Industrial Lubrication and Tribology ◽

10.1108/ilt-05-2018-0196 ◽

2019 ◽

Vol 71 (3) ◽

pp. 499-508 ◽

Cited By ~ 5

Author(s):

Gitesh Kumar ◽

Hem Chander Garg ◽

Ajay Gijawara

Keyword(s):

Friction And Wear ◽

Operating Time ◽

Cuo Nanoparticles ◽

Zinc Dialkyldithiophosphate ◽

Content Type ◽

Base Oil ◽

Wear Characteristics ◽

Vis Spectroscopy ◽

Pin On Disc ◽

Friction And Wear Characteristics

PurposeThis paper aims to report the friction and wear characteristics of refined soybean oil (RSBO) blended with copper oxide (CuO) nanoparticles and zinc dialkyldithiophosphate (ZDDP) as additives.Design/methodology/approachFour different concentrations 0.04, 0.05, 0.1 and 0.2 Wt.% of CuO nanoparticles were added with ZDDP in RSBO. The friction and wear characteristics of lubricants have been investigated on a pin-on-disc tribotester under loads of 120 and 180 N, with rotating speeds of 1,200 and 1,500 rpm in half hour of operating time. The dispersion stability of CuO nanoparticles has been analyzed using ultraviolet visible (UV-Vis) spectroscopy. The wearout surface of pins has been examined by using a scanning electron microscope.FindingsThe results revealed that there is a reduction in the friction and wear by the addition of CuO nanoparticles and ZDDP in RSBO. Coefficient of friction increases at a high sliding speed for RSBO with ZDDP. From UV-Vis spectroscopy, it is observed that 100 ml of oleic acid surfactant per gram of CuO nanoparticles has stable dispersion in RSBO.Originality/valueThe addition of ZDDP and CuO nanoparticles in RSBO is more efficient to reduce the friction and wear in comparison to base oil. The optimum concentration of CuO nanoparticles in RSBO is 0.05 Wt.%.

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Experimental Research on Tribological Properties of Mn0.78Zn0.22Fe2O4 Magnetic Fluids

Journal of Tribology ◽

10.1115/1.2913539 ◽

2008 ◽

Vol 130 (3) ◽

Cited By ~ 4

Author(s):

Wang Li-jun ◽

Guo Chu-wen ◽

Ryuichiro Yamane

Keyword(s):

Tribological Properties ◽

Friction And Wear ◽

Chemical Properties ◽

Friction Reduction ◽

Experimental Investigations ◽

Wear Scar Diameter ◽

Base Oil ◽

Turbine Oil ◽

Physical And Chemical ◽

And Chemical Properties

The synthesis and application of nanometer-sized particles have received considerable attention in recent years because of their different physical and chemical properties from those of the bulk materials or individual molecules; however, few experimental investigations on the tribological properties of lubricating oils with and without nanoferromagnetic particles have been performed. This work investigates the tribological properties of Mn0.78Zn0.22Fe2O4 nanoferromagnetic as additive in 46# turbine oil using a four-ball friction and wear tester. It is shown that the 46# turbine oil containing Mn0.78Zn0.22Fe2O4 nanoparticles has much better friction reduction and antiwear abilities than the base oil. The 46# turbine oil doped with 6wt%Mn0.78Zn0.22Fe2O4 nanoparticles show the best tribological properties among the tested oil samples, and PB value is increased by 26%, and the decreasing percentage of wear scar diameter is 25.45% compared to base oil.

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The tribological properties study of carbon fabric/ epoxy composites reinforced by nano-TiO2 and MWNTs

Open Physics ◽

10.1515/phys-2018-0133 ◽

2018 ◽

Vol 16 (1) ◽

pp. 1127-1138 ◽

Cited By ~ 1

Author(s):

Fengjun Wei ◽

Bingli Pan ◽

Juan Lopez

Keyword(s):

Tribological Properties ◽

Friction And Wear ◽

Epoxy Composite ◽

Good Effect ◽

Binder Phase ◽

Carbon Fabric ◽

Wear Properties ◽

Brittle Rupture ◽

Composites Materials ◽

The Coefficient Of Friction

Abstract A kind of carbon fabric/epoxy composite was successfully prepared with carbon fiber fabric as reinforced phase and epoxy resin as binder phase, then the nano-TiO2 and a hybrid system of TiO2/MWNTs was added into the carbon fabric/ epoxy composite matrix respectively to prepare a kind of nano-composite. The friction and wear properties of CF/EP composites under different load conditions have been studied in this article, during the study the effects of filler types and contents on the tribological properties were researched, at last the worn surfaces were investigated and the abrasion mechanism was discussed. The results showed that: whether filling the nano-TiO2 alone or mixing the TiO2/MWNTs, it was able to achieve a good effect on decreasing friction and reducing wear, and the optimum addition ratio of the nano-TiO2 particles was 3.0% , meanwhile 3.0% of nano-TiO2 and 0.4% of MWNTs could cooperate with each other in their dimension, and could show a synergistic effect on modifying the tribological properties of CF/EP composites, the coefficient of friction of the modified composites decreased by 20% and the wear life increased by more than 140% compared with that of pristine composite materials, in the process of friction and wear, the wear form of the composites materials varied from brittle rupture to abrasive wear gradually.

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Some Tribological Properties of an Ionic Liquid

World Tribology Congress III, Volume 1 ◽

10.1115/wtc2005-63326 ◽

2005 ◽

Cited By ~ 1

Author(s):

Takashi Nogi

Keyword(s):

Ionic Liquid ◽

Coefficient Of Friction ◽

Tribological Properties ◽

Friction And Wear ◽

Wear Performance ◽

Lubrication Regime ◽

Pin On Disc ◽

The Coefficient Of Friction

Some tribological properties of an ionic liquid were investigated by using a pin-on-disc friction and wear tester. Due to running-in, the coefficient of friction of the ionic liquid decreased with time to a very low value of 0.02 which suggests that the lubrication regime was hydrodynamic at the end of the tests. Anti-wear performance of the ionic liquid was substantially comparable to a paraffin-based oil.

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Evaluation of Friction and Wear Behavior of Date Palm Fruit Syrup as an Environmentally Friendly Lubricant

Materials ◽

10.3390/ma12101589 ◽

2019 ◽

Vol 12 (10) ◽

pp. 1589 ◽

Cited By ~ 1

Author(s):

Mazin Tahir ◽

Abdul Samad Mohammed ◽

Umar Azam Muhammad

Keyword(s):

Tribological Properties ◽

Friction And Wear ◽

Date Palm ◽

Wear Behavior ◽

Normal Load ◽

Environmentally Friendly ◽

Potential Candidate ◽

Palm Fruit ◽

Wear Rates ◽

The Coefficient Of Friction

The effect of various operational factors, such as sliding speed, normal load and temperature on the tribological properties of Date palm fruit syrup (DPFS) as an environmentally friendly lubricant, is investigated. Ball-on-disc wear tests are conducted on mild steel samples in the presence of DPFS as a lubricant under different conditions and the coefficient of friction and wear rate are measured. Scanning electron microscopy, stylus profilometry, and Fourier transform infrared spectroscopy are used to evaluate the wear tracks to determine the underlying wear mechanisms. Results showed that DPFS has excellent tribological properties in terms of low friction and low wear rates making it a potential candidate to be used as a lubricant in tribological applications.

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Effect of temperature and mating pair on tribological properties of DLC and GLC coatings under high pressure lubricated by MoDTC and ZDDP

Friction ◽

10.1007/s40544-020-0420-1 ◽

2020 ◽

Author(s):

Kang Liu ◽

Jia-jie Kang ◽

Guang-an Zhang ◽

Zhi-bin Lu ◽

Wen Yue

Keyword(s):

Tribological Properties ◽

Friction And Wear ◽

Effect Of Temperature ◽

Wear Properties ◽

Dlc Coatings ◽

Base Oil ◽

Two Temperatures ◽

Friction And Wear Properties ◽

Lubrication Conditions ◽

Better Than

AbstractDiamond-like carbon (DLC) and graphite-like carbon (GLC) coatings have good prospects for improving the surface properties of engine parts. However, further understanding is needed on the effect of working conditions on tribological behaviors. In this study, GLC and two types of DLC coatings were deposited on GCr15 substrate for investigation. The friction and wear properties of self-mated and steel-mated pairs were evaluated. Two temperatures (25 and 90 °C), three lubrication conditions (base oil, molybdenum dithiocarbamate (MoDTC)-containing oil, MoDTC+zinc dialkyldithiophosphate (ZDDP)-containing oil), and high Hertz contact stress (2.41 GPa) were applied in the experiments. The results showed that high temperature promoted the effect of ZDDP on steel-mated pairs, but increased wear under base oil lubrication. The increased wear for steel-mated pairs lubricated by MoDTC-containing oil was due to abrasive wear probably caused by MoO3 and β-FeMoO4. It was also found that in most cases, the tribological properties of self-mated pairs were better than those of steel-mated pairs.

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Effect of Phosphorus on the Friction and Wear Characteristics of Cu-Sn-P Alloys

Journal of Lubrication Technology ◽

10.1115/1.3453321 ◽

1979 ◽

Vol 101 (2) ◽

pp. 201-206 ◽

Cited By ~ 7

Author(s):

Y. Taga ◽

K. Nakajima

Keyword(s):

Photoelectron Spectroscopy ◽

Friction And Wear ◽

Structural Changes ◽

Surface Concentration ◽

Wear Characteristics ◽

X Ray ◽

The Matrix ◽

Pin On Disc ◽

The Coefficient Of Friction ◽

Friction And Wear Characteristics

The effects of phosphorus on the friction and wear characteristics of Cu-5 at. percent Sn-P alloys containing 1–5 at. percent P were studied using a pin on disc apparatus. The results showed that the decrease in both the coefficient of friction and the rate of wear became conspicuous with the increase in quantity of Cu3P coexisting in the matrix; its amount increases with the content of phosphorus. The structural changes in the surface of the specimen due to heating in a vacuum were observed by using Auger electron spectroscopy and X-ray photoelectron spectroscopy. It was seen that the surface concentration of phosphorus strongly increased after heating at 573K, whereas the diffusion of tin atoms was markedly retarded. It was concluded from these results that the behavior of phosphorus atoms in the surface during sliding played an important role in the friction and wear characteristics of Cu-Sn-P alloys.

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Study on the Friction and Wear Characteristics of Tungsten Carbide and Zirconium With Phosphor-Containing Liquid

Journal of Tribology ◽

10.1115/1.4034022 ◽

2016 ◽

Vol 139 (3) ◽

Author(s):

Myeong-Woo Ha ◽

Kwang-Hee Lee ◽

Chul-Hee Lee ◽

Jong-Myung Choi ◽

Jun-Wook An

Keyword(s):

Tungsten Carbide ◽

Coefficient Of Friction ◽

Contact Surface ◽

Friction And Wear ◽

Yttrium Aluminum Garnet ◽

Experimental Results ◽

Wear Characteristics ◽

Hard Materials ◽

The Coefficient Of Friction ◽

Friction And Wear Characteristics

The dispenser ejects the ceramic filler and phosphor-containing liquid for making various products. When the particle-containing liquid is ejected under high-velocity conditions, however, the ejection reliability decreases because of the wear of the contact surface between the rod and nozzle even though these components are made of hard materials. It is therefore necessary to characterize the friction and wear properties of the hard materials, tungsten carbide (WC) and zirconium (Zr), with the high-viscosity liquid-containing nitride or yttrium aluminum garnet (YAG) particles under reciprocating conditions. Particle contents of 15 wt.% and 30 wt.% are added to the liquid. A reciprocating test was implemented to this end, and WC and Zr specimens were used. The liquid used in the experiment contains nitride and YAG. The experimental results show that the particles inside the liquid are worn out, leading to particle lubrication and the decrease in the coefficient of friction. Also, it is confirmed that the more the particles are, the less the coefficient of friction is due to particle lubrication. For each experimental condition, the coefficient of friction is measured and compared. Moreover, the contact surface of the specimen is analyzed using an electron microscope, and a profilometer is used to measure the surface roughness of the specimen before and after the test. The reciprocation friction and wear characteristics of WC and Zr with phosphor-containing liquid are evaluated by analyzing the experimental results.

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