Tribological Properties of TiO<sub>2</sub>/BP Nanocomposites as Lubricant Additives for Titanium Alloy Tribopairs

Xu, Yufu; Sun, Kequn; Yu, Jingyuan; Bao, Yichen; Dong, Yinghui; Dearn, Karl D.

doi:10.1080/10402004.2021.2007317

Cited by 6 publications

(1 citation statement)

References 54 publications

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“…Although lots of research studies have been done for the temperature-sensitive performances of PNIPAM microgels, accurate adjustment of the critical temperature of volume phase transition and their lubrication behavior for titanium alloy are still out of control (Sierra-Martin et al , 2014; Cao-Luu et al , 2019; Thiele et al , 2021). In previous work, several nano-additives have been used to control the lubrication performance of tribopairs (Xu et al , 2019a, 2019b; Luo et al , 2021; Xu et al , 2021; Bao et al , 2022). In this work, the surfactant-free emulsion polymerization method was used to prepare PNIPAM microgels with different particle sizes.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and temperature-sensitive lubrication behavior of PNIPAM microgels for titanium alloy

Sun

Zheng

et al. 2022

ILT

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Purpose This paper aims to offeri novel nano-additives polymer microgels to precisely improve the lubrication properties of titanium alloy under different temperatures. Design/methodology/approach The surfactant-free emulsion polymerization method was used to prepare Poly(N-isoprolylacrylamide) (PNIPAM) microgels. A ball-on-disk tribometer was applied to investigated the temperature-sensitive lubrication behavior of PNIPAM microgels. Findings The results show that the as-prepared microgels are ball-like nanoparticles with the size of 50–900 nm. In addition, potassium persulfate as initiator, complete mixing technic and high sodium dodecyl sulfate (SDS) concentration contribute to the formation of microgels with small size. The tribosystem shows a lower friction coefficient with the lubrication of PNIPAM microgels as aqueous solution additives when the temperature exceeding the critical temperature. Originality/value This work reports the temperature-sensitive lubrication of PNIPAM microgels. The critical temperature of PNIPAM microgels could be regulated by the addition of SDS in the solutions. This offers an effective and facile strategy for regulation of the critical temperature of smart microgels, which is helpful for the smart lubrication in the future.

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Section: Introductionmentioning

confidence: 99%

Synthesis and temperature-sensitive lubrication behavior of PNIPAM microgels for titanium alloy

Sun

Zheng

et al. 2022

ILT

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Friction‐Reducing and Anti‐Wear Mechanism of BP/Nano‐Fe₃O₄ Nanocomposite as a Lubricant Additive in Soybean Oil

Yu,

Li,

Sun

et al. 2024

Lubrication Science

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As an emerging two‐dimensional material, black phosphorus (BP) has excellent tribological properties, but the poor dispersion of BP in oil inhibits its application in friction to some extent. Surface modification is one of the effective methods to solve the dispersibility of BP, and the use of nano‐Fe3O4 dotted on the surface of BP improves the dispersion stability of BP in soybean from 3 days to about 15 days. Compared with pure soybean oil, friction coefficient and wear rate of the addition of 0.12 wt% BP/Fe3O4 are reduced 65% and 78%, respectively. To elucidate the excellent tribological mechanisms of BP/Fe3O4 as additives in soybean oil, the compositional and structural characterisation of the abrasion mark surface was studied accordingly. On the one hand, soybean oil reacts with BP/Fe3O4 to form a composite tribo‐film during the scraping process. This tribo‐film composed of amorphous carbon, iron oxide and phosphorus oxide nitrides prevents direct contact between the sliding interfaces. On the other hand, BP and Fe3O4 nanoparticles form a mechanical rollerball structure, which can further reduce interfacial friction and wear through synergistic lubrication. The results provide new insights into the design of additives in biomass lubricating oils and propose new application prospects for BP in the field of lubricating additives.

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Exploring the solid lubrication potential of 2D black phosphorus

Boidi,

Zambrano,

Varga

et al. 2024

Applied Surface Science

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Tribological Properties of TiO₂/BP Nanocomposites as Lubricant Additives for Titanium Alloy Tribopairs

Cited by 6 publications

References 54 publications

Synthesis and temperature-sensitive lubrication behavior of PNIPAM microgels for titanium alloy

Synthesis and temperature-sensitive lubrication behavior of PNIPAM microgels for titanium alloy

Friction‐Reducing and Anti‐Wear Mechanism of BP/Nano‐Fe₃O₄ Nanocomposite as a Lubricant Additive in Soybean Oil

Exploring the solid lubrication potential of 2D black phosphorus

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Tribological Properties of TiO2/BP Nanocomposites as Lubricant Additives for Titanium Alloy Tribopairs

Cited by 6 publications

References 54 publications

Synthesis and temperature-sensitive lubrication behavior of PNIPAM microgels for titanium alloy

Synthesis and temperature-sensitive lubrication behavior of PNIPAM microgels for titanium alloy

Friction‐Reducing and Anti‐Wear Mechanism of BP/Nano‐Fe3O4 Nanocomposite as a Lubricant Additive in Soybean Oil

Exploring the solid lubrication potential of 2D black phosphorus

Contact Info

Product

Resources

About

Tribological Properties of TiO₂/BP Nanocomposites as Lubricant Additives for Titanium Alloy Tribopairs

Friction‐Reducing and Anti‐Wear Mechanism of BP/Nano‐Fe₃O₄ Nanocomposite as a Lubricant Additive in Soybean Oil