Study of Nano h-BN Impact on Lubricating Properties of Selected Oil Mixtures

Urbaniak, Wiesław; Majewski, Tomasz; Powązka, Iwona; Śmigielski, Grzegorz; Petelska, Aneta D.

doi:10.3390/ma15062052

Cited by 3 publications

(3 citation statements)

References 25 publications

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“…12,16 Many research findings have also indicated that nanoparticle additives are more effective than microparticle additives in improving the tribological properties of base oils because the size of nanoparticles and surface roughness are on the same scale. [17][18][19] Urbaniak et al 20 believed that h-BN nanoparticles created a superior protective film that can significantly prevent friction and promote wear resistance. Kumar et al 21 investigated the tribological performance of lithium complex grease with additives of h-BN micro-, submicro-, and nanoparticles and found that nanoparticles of h-BN exhibited the best antifriction and anti-wear properties.…”

Section: Introductionmentioning

confidence: 99%

Tribological properties of hexagonal boron nitride nanoparticles as a lubricating grease additive

Cheng

Guan

et al. 2023

Lubrication Science

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The friction and anti‐wear behaviours of hexagonal boron nitride (h‐BN) nanoparticles as a lithium lubricating grease additive are being investigated under sliding conditions. The grease with 3 wt% 60 nm h‐BN particles and the grease with 1 wt% 500 nm h‐BN particles lead to 22.34% and 20.18% reductions in the wear scar diameter, respectively, although the friction coefficients slightly decrease. The boric acid H3BO3 with layer‐crystal structure produces during the friction process, and the synergistic effect of h‐BN nanoparticles and H3BO3 makes friction reduction and wear‐resistant enhancement. Furthermore, the 60 nm h‐BN particles filled in the asperity valleys of the friction surface make a rolling effect and establish a protective film, while the 500 nm h‐BN particles shield the asperity contact between friction pairs and make a polishing effect as well.

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Section: Introductionmentioning

confidence: 99%

Tribological properties of hexagonal boron nitride nanoparticles as a lubricating grease additive

Cheng

Guan

et al. 2023

Lubrication Science

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“…Due to good mechanical, lubricating and oxidation resistance, it is expected to become one of the top choices for green lubricating oil additives after reasonable development [15]. Over the past few decades, plenty of studies on h-BN as a lubricating additive have been reported [2,[16][17][18][19][20][21][22]. Yang et al [2] found that as a friction additive in mineral oil, the as-prepared lipophilic BN nanosheets can reduce the coefficient of friction (COF) by 20.2%.…”

Section: Introductionmentioning

confidence: 99%

“…More importantly, the track of the wear scar becomes significantly shallower. Urbaniak et al [19] studied the tribological properties of BN as an additive to PAO4 base oil. They found that adding the h-BN layered nanomaterial to the lubricating oil can be a good solution for obtaining a lubricating oil with a ~27% greater galling load than the base oil.…”

Section: Introductionmentioning

confidence: 99%

Simple Laser-Induced Hexagonal Boron Nitride Nanospheres for Enhanced Tribological Performance

Luo

Zhu

et al. 2023

Lubricants

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Hexagonal boron nitride, as a layered material with a graphite-like structure, exhibits good mechanical, lubricating and oxidation resistance properties, and is thus expected to become one of the top choices for green lubricating oil additives. However, its poor dispersibility in oil and difficulties in preparing spherical particles when constructing hexagonal boron nitride limit its application. In this paper, spherical hexagonal boron nitride nanoparticles are constructed via a simple laser irradiation method. Under laser irradiation, raw irregular hexagonal boron nitride particles were reshaped into nanospheres via a laser-induced photothermal process and rapid cooling in a liquid-phase environment. Under the optimal concentration, the coefficient of friction and wear spot diameter decreased by 26.1% and 23.2%, and the surface roughness and wear volume decreased by 29.2% and 23.8%, respectively. The enhanced tribological performance is mainly due to the ball bearing, depositional absorption and repair effect of the spherical particles. This simple laser irradiation method provides a new method by which to prepare spherical hexagonal boron nitride lubricating oil additives.

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Effect of Hexagonal Boron Nitride With Differentparticle Granulation on the Lubrication Propertiesof Mineral Oil With an Addition of Surfactants

Chodkiewicz,

Kałdoński

2023

Tribologia

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This paper presents the results of tribological tests of lubricating compositions containing SN150 mineral oilas a base, an additive of solid lubricant in the form of hexagonal boron nitrides (h-BN) of various particlesizes (nano- and micro-) and surfactants: succinic acid imide and sodium di-2-ethylhexyl sulphosuccinate.Particular attention was paid to analysing the properties of hexagonal boron nitrides in the context of theireffect on the tribological properties of the friction node under study. The effects of h-BN particle size, shape,specific surface area and porosity were considered. In addition, tests were carried out to check the surfactants'effect on the tested oil's hexagonal boron nitride sedimentation process. These tests confirmed the positiveeffect of succinic acid imide on maintaining a stable dispersion of h-BN particles in SN-150 mineral oil.Tribological tests were performed on a T-02 tribotester based on the PN-EN ISO 20623:2018-02 standard.The positive effect of hexagonal boron nitride on the lubricating properties of mixtures with SN150 mineraloil was established. In addition, hexagonal boron nitride, with a smaller particle size and a more developedporous structure, had a more favourable effect on improving the lubricity properties evaluated on the T-02tribotester.

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Study of Nano h-BN Impact on Lubricating Properties of Selected Oil Mixtures

Cited by 3 publications

References 25 publications

Tribological properties of hexagonal boron nitride nanoparticles as a lubricating grease additive

Tribological properties of hexagonal boron nitride nanoparticles as a lubricating grease additive

Simple Laser-Induced Hexagonal Boron Nitride Nanospheres for Enhanced Tribological Performance

Effect of Hexagonal Boron Nitride With Differentparticle Granulation on the Lubrication Propertiesof Mineral Oil With an Addition of Surfactants

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