The tribological performances of modified magnesium silicate hydroxide as lubricant additive

Gao, Kai; Chang, Qi; Wang, Bin; Zhou, Ningning; Qing, Tao

doi:10.1016/j.triboint.2018.01.022

Cited by 52 publications

(27 citation statements)

References 17 publications

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“…Meanwhile, by the method of high-energy mechanical ball-milling, only micro-sized natural serpentine particles can be obtained, which is not suitable for their applications as lubricant additives. Inspired by the above research studies, we have synthesized MSH nanoparticles and confirmed its outstanding tribological properties in base oil [16][17][18].…”

Section: Introductionmentioning

confidence: 71%

Synergistic Tribological Properties of Synthetic Magnesium Silicate Hydroxide Combined With Amphiphilic Molecules

Wang¹,

Chang²,

Gao³

2019

FU Mech Eng

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This paper reports the synthesis of magnesium silicate hydroxide (MSH) nanoparticles and their synergistic tribological properties combined with amphiphilic molecules (AMs) as additives in base oil. This combination reduces wear losses substantially due to the formation of a double well-arranged molecular layer or tribofilm on the rubbing surfaces under certain test conditions. From the results of nonequilibrium molecular dynamics (NEMD) simulations, lamellate MSH nanoparticles provide a medium for the adsorption of AMs thus further decreasing the contact of rough peaks. In addition, with the increase of load, a tribofilm containing element Mg, Si, O forms on the worn surfaces and greatly improves the anti-wear property of base oil.

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Section: Introductionmentioning

confidence: 71%

Synergistic Tribological Properties of Synthetic Magnesium Silicate Hydroxide Combined With Amphiphilic Molecules

Wang¹,

Chang²,

Gao³

2019

FU Mech Eng

Self Cite

View full text Add to dashboard Cite

show abstract

“…Layered nanoparticles, such as graphite, MoS 2 , and boron nitride, maintain the characteristics of larger surface area and higher diffusivity compared with ordinary morphology particles, making flake materials as new type of lubricant additives. Further, layered silicate was considered as one of the best candidate materials because of their low cost, nontoxic, and stability properties. Gao et al synthesised magnesium silicate hydroxide (MSH) by hydrothermal method at 200°C for 12 hours with magnesium oxide and silica as raw materials.…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al found that although the 0.5‐wt% content of serpentine powders reduced friction and wear effectively in diesel engine oil at the load of 50 N, obvious pits appeared on worn surface lubricated, which could be easily observed from scanning electron microscope (SEM) morphology. The reason was that the destruction of Si–O tetrahedral structure during the wear process, leading to silicon particles released and then scratched the surface . This phenomenon is called typical three‐body abrasive wear, which was not conducive to the service life of the machine.…”

Section: Introductionmentioning

confidence: 99%

“…The reason was that the destruction of Si-O tetrahedral structure during the wear process, leading to silicon particles released and then scratched the surface. 10 This phenomenon is called typical three-body abrasive wear, which was not conducive to the service life of the machine.…”

Section: Introductionmentioning

confidence: 99%

“…Further, layered silicate was considered as one of the best candidate materials because of their low cost, nontoxic, and stability properties. Gao et al synthesised magnesium silicate hydroxide (MSH) by hydrothermal method at 200°C for 12 hours with magnesium oxide and silica as raw materials. The results showed that the MSH as lubricant additive in oil exhibited the wear rate reduction 55% compared with the base oil.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synergistic effect of talc/carbon spheres composite as oil‐based additive enhancing the lubricating properties for steel‐steel contact

Fei

Luo

et al. 2020

Lubrication Science

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Talc/carbon spheres (TC) composite was successfully fabricated through a simple and eco-friendly hydrothermal method. The tribology properties of the base oil were significantly improved after adding TC composites, which had been studied by a ball on disc (BOD) tribometer. The friction coefficient of oil containing 0.5-wt% TC composite (0.5 TC-Oil) was only 0.08, with a decrease of 35.3% compared with the base oil at 5 N. Moreover, severe abrasive wear between friction pairs changed into slight plastic deformation lubricated with 0.5 TC-Oil, as confirmed by scanning electron microscope (SEM). These results reflected notable synergy between self-repair performance effect of talc and ball-bearing effect of carbon spheres. The study displayed the potential lubricating performance of the TC composite in current generation oil lubricants. K E Y W O R D Sball-bearing, lubricating properties, self-repair, talc/carbon spheres composite

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The tribological response of nanoparticles' equivalent diameter to the oil film thickness

Gao

Chang

Wang

et al. 2021

Lubrication Science

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Magnesium silicate hydroxide (hydrated magnesium silicate, MSH) nanoparticles with different sizes and morphologies were prepared. The equivalent diameter (De) was introduced to transform morphology difference into size difference. The tribological tests showed that the anti‐wear property of nanoparticles is highly related to the De and the oil film thickness. When the centre oil film thickness (hc) exceeds the De of all powders added, the wear reduction rates of powders with different De are concentrated in the range of 55%–61%. However, when the hc decreased, the different powders show a great difference in anti‐wear performance, which is due to the relatively larger De that would affect the action of nanoparticles entering into the friction contact area, thereby week its anti‐wear performance. It is assumed the nanoparticles will undergo the rolling–deformation–destroy–decomposition four stages after they enter the friction contact area to play a role in reducing friction and anti‐wear.

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The tribological performances of modified magnesium silicate hydroxide as lubricant additive

Cited by 52 publications

References 17 publications

Synergistic Tribological Properties of Synthetic Magnesium Silicate Hydroxide Combined With Amphiphilic Molecules

Synergistic Tribological Properties of Synthetic Magnesium Silicate Hydroxide Combined With Amphiphilic Molecules

Synergistic effect of talc/carbon spheres composite as oil‐based additive enhancing the lubricating properties for steel‐steel contact

The tribological response of nanoparticles' equivalent diameter to the oil film thickness

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