Lubricating mechanism of Fe 3 O 4 @MoS 2 core-shell nanocomposites as oil additives for steel/steel contact

Xu, Yufu; Geng, Jian; Peng, Yubin; Liu, Zhichao; Yu, Jingyuan; Hu, Xianguo

doi:10.1016/j.triboint.2018.01.051

Cited by 88 publications

(47 citation statements)

References 41 publications

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“…Chemically-modified GO in hydrophobic ionic liquids [132], 4-n-pentyl-4'-cyanobiphyl liquid crystal (5CB) added with graphene [128], graphene sheets anchored with molybdenum disulfide (MoS 2 ) nanoflowers [133], ILs with graphene [134,135], chemicallybonded phosphorus-graphene hybrid [136], alkyl phosphate modified graphene oxide [137], and polyhedral oligomeric silsesquioxane (POSS) grafted graphene oxide [138], were synthesized and used as liquid lubricants or additives. The research on transition metal disulfides (TMDs) liquid additives, especially MoS 2 , mainly focused on the preparation of functional MoS 2 nanosheets [118,139], MoS 2 nanotubes [140,141], hollow fullerene-like MoS 2 [142], Fe 3 O 4 @MoS 2 core-shell nanocomposites [143], and MoS 2 /montmorillonite nanocomposites [144], etc. A new 2D-layered material, black phosphorus (BP), has been used as liquid lubricant additives recently [119].…”

Section: Inorganic Additivementioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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The reach of tribology has expanded in diverse fields and tribology related research activities have seen immense growth during the last decade. This review takes stock of the recent advances in research pertaining to different aspects of tribology within the last 2 to 3 years. Different aspects of tribology that have been reviewed including lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology. This review attempts to highlight recent research and also presents future outlook pertaining to these aspects. It may however be noted that there are limitations of this review. One of the most important of these is that tribology being a highly multidisciplinary field, the research results are widely spread across various disciplines and there can be omissions because of this. Secondly, the topics dealt with in the field of tribology include only some of the salient topics (such as lubrication, wear, surface engineering, biotribology, high temperature tribology, and computational tribology) but there are many more aspects of tribology that have not been covered in this review. Despite these limitations it is hoped that such a review will bring the most recent salient research in focus and will be beneficial for the growing community of tribology researchers.

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Section: Inorganic Additivementioning

confidence: 99%

A review of recent advances in tribology

et al. 2020

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“…The MoS2 QDs play a decisive role in the improvement of the tribological performance. The Because the spherical MoS 2 QDs function as ball-bearing lubricants in the process of friction, they can be adsorbed onto the slide track by adding MoS 2 QDs to pure paroline oil to prevent the frictional component from contacting it directly [30,31]. In summary, the synergistic lubrication effect of the tribo-film, the improvement of the bearing capacity, and the ball-bearing effect together lead to the lowest friction and wear.…”

Section: Monodisperse Mos2mentioning

confidence: 99%

The Application of Nano-MoS2 Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement

Guo

Peng

et al. 2020

Nanomaterials

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Molybdenum disulfide quantum dots (MoS2 QDs) are a promising lubricant additive for enhanced engine efficiency. In this study, MoS2 QDs were used as lubricating oil additives for ball-on-disc contact and had adequate dispersity in paroline oil, due to their super small particle size (~3 nm). Tribological results indicate that the friction coefficient of paroline oil with 0.3 wt.% MoS2 QDs reached 0.061, much lower than that of pure paroline oil (0.169), which is due to the formation of a stable tribo-film formed by the MoS2, MoO3, FeS, and FeSO4 composite within the wear track. Synergistic lubrication effects of the tribo-film and ball-bearing effect cooperatively resulted in the lowest friction and wear.

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“…Generally, the Fe 3 O 4 nanoparticles are hard to disperse and maintain stable in the liquid lubricants because of the magnetic properties and high surface energy, which will affect the tribological properties of Fe 3 O 4 nanoparticles when used as lubricant additives. To overcome the problems, Fe 3 O 4 was encapsulated into MoS 2 , the core–shell particles were used as additives for different liquid lubricants (PAO 4 ( Figure 14 ) and liquid paraffin) [ 87 , 88 ], and both of them showed great dispersion and tribological properties. In addition to MoS 2 , Fe 3 O 4 particles were also coated with carbon layers via hydrothermal carbonization to enhance the dispersion property in sunflower oil [ 83 ].…”

Section: Applicationsmentioning

confidence: 99%

Synthesis of Core–Shell Micro/Nanoparticles and Their Tribological Application: A Review

Chen

Lin

et al. 2020

Materials

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Owing to the diverse composition, adjustable performance, and synergistic effect among components, core–shell micro/nanoparticles have been widely applied in the field of tribology in recent years. The strong combination with the matrix and the good dispersion of reinforcing fillers in the composites could be achieved through the design of core–shell structural particles based on the reinforcing fillers. In addition, the performance of chemical mechanical polishing could be improved by optimizing the shell material coated on the abrasive surface. The physical and chemical state of the core–shell micro/nanoparticles played important effects on the friction and wear properties of materials. In this paper, the synthesis methods, the tribological applications (acted as solid/liquid lubricant additive, chemical mechanical polishing abrasives and basic units of lubricant matrix), and the functionary mechanisms of core–shell micro/nanoparticles were systematically reviewed, and the future development of core–shell micro/nanoparticles in tribology was also prospected.

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Lubricating mechanism of Fe 3 O 4 @MoS 2 core-shell nanocomposites as oil additives for steel/steel contact

Cited by 88 publications

References 41 publications

A review of recent advances in tribology

A review of recent advances in tribology

The Application of Nano-MoS2 Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement

Synthesis of Core–Shell Micro/Nanoparticles and Their Tribological Application: A Review

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