Erosive Wear Resistance of Nature-inspired Flexible Materials

Kumar, Rahul; Antonov, Maksim; Holovenko, Yaroslav; Surženkov, Andrei

doi:10.1007/s11249-020-01296-8

Cited by 16 publications

(19 citation statements)

References 24 publications

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“…In most of the works, a 10–15 wt% Ag inclusion was found to be the optimum concentration for wear reduction. Figure 4 shows the CoF and relative wear rates for various Ag-based solid-lubricating materials on a wide range of sliding temperatures, as reported in recent publications [ 10 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. The relative wear rate values are calculated after dividing the wear rate value at the reported temperature by room temperature (RT) value.…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 86%

“…It is seen that a silver content of ~15 wt% or more in a host material is beneficial in a decrease in CoF and wear with an increase in temperature [ 14 , 15 ]. At temperature < 400 °C, sufficient reduction in CoF and wear of Ag deposited on Al 2 O 3 substrate is demonstrated [ 16 , 17 ]. However, upon an increase in temperature, the wear rate is accelerated due to expulsion and an increased softening of Ag layers [ 17 ].…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 99%

“…In addition to being adaptive and re-structurable, the new generation of tribo-materials is expected to show properties such as bio-mimicking (inspired from nature such as human skin, snake skin, fish scales, etc. to minimize friction, erosion) [ 16 ] and the ability to self-diagnose (such as, in fiber-reinforced plastics, useful in fast damage diagnosis, etc.).…”

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 99%

“… HT sliding results of Ag-based composites and coatings as found in recent literature ( a ) CoF; ( b ) Relative wear rate (in relation to their corresponding RT wear). Values are labeled as per Ag concentration, matrix material, and fabrication method [ 10 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. …”

Section: Figurementioning

confidence: 99%

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Solid Lubrication at High-Temperatures—A Review

et al. 2022

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Understanding the complex nature of wear behavior of materials at high-temperature is of fundamental importance for several engineering applications, including metal processing (cutting, forming, forging), internal combustion engines, etc. At high temperatures (up to 1000 °C), the material removal is majorly governed by the changes in surface reactivity and wear mechanisms. The use of lubricants to minimize friction, wear and flash temperature to prevent seizing is a common approach in engine tribology. However, the degradation of conventional liquid-based lubricants at temperatures beyond 300 °C, in addition to its harmful effects on human and environmental health, is deeply concerning. Solid lubricants are a group of compounds exploiting the benefit of wear diminishing mechanisms over a wide range of operating temperatures. The materials incorporated with solid lubricants are herein called ‘self-lubricating’ materials. Moreover, the possibility to omit the use of conventional liquid-based lubricants is perceived. The objective of the present paper is to review the current state-of-the-art in solid-lubricating materials operating under dry wear conditions. By opening with a brief summary of the understanding of solid lubrication at a high temperature, the article initially describes the recent developments in the field. The mechanisms of formation and the nature of tribo-films (or layers) during high-temperature wear are discussed in detail. The trends and ways of further development of the solid-lubricating materials and their future evolutions are identified.

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Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 86%

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 99%

Section: Potential High-temperature Solid-lubricantsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

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Solid Lubrication at High-Temperatures—A Review

et al. 2022

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“…These UV-vis absorption spectra clearly reveal a pair of negative/ positive intensity changes generated at 211/218 and 203/209 nm, indicating that the stable cation-π interactions exist between ZIF-8 and indole ring. 32 The wavenumber shifts of the in the FTIR also can be utilized as evidences of the variation of cation-π interaction, 33,34 with the incorporation of ZIF-8@GO, there are certain extent wavenumber shift are appeared in Figures 2H and S1F. As we expected, the addition of PEW has no effect on the wavenumber shift, which indicated the combination between the ZIF-8@GO and In-PHT is stable, as well as the typical C F of PEW is also characterized obviously.…”

Section: Microstructure Of Zif-8@gomentioning

confidence: 99%

Synergism of non‐covalent interaction and ZIF‐8@GO to improve tribological and mechanical properties of carbon fiber reinforced recyclable indole‐based poly(hexahydrotriazine) composites

Li,

Jia,

Yang

et al. 2023

Polymer Composites

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Existing research on interfacial interactions of recyclable carbon fiber reinforced poly(hexahydrotriazine) (PHT) composites has mainly focused on the study of reinforcing fibers, ignoring the wide range of applications of matrix in advanced friction materials. Herein, polyhedral ZIF‐8 was grown in‐situ on the GO surface (named as ZIF‐8@GO) to improve the load‐bearing capacity of GO nanosheets. The ZIF‐8@GO with zinc ions and imidazole ions were embedded as interlaminar reinforcement into matrix to construct a non‐covalent cation‐π interaction with indole‐based PHT (In‐PHT) matrix, which significantly enhanced the toughness and tensile strength (reached 215.5 MPa) of composites. With the incorporation of armor‐shaped ZIF‐8@GO reinforcement, compared with the composite without ZIF‐8@GO, the wear track width was significantly decreased by 50%. Moreover, the worn surface lubricated by this composite exhibited efficient self‐healing property due to the introduction of the polyethylene wax (PEW), and the healed average friction coefficient showed slight changes. Extensive analyses verify that the ZIF‐8@GO structure and cation‐π interactions across multiscale interfaces can enhance both mechanical strength and wear resistance of recyclable carbon fiber reinforced In‐PHT composites (In‐PHT‐CFRPs).Highlights ZIF‐8@GO was embedded as interlayer reinforcement to improve wear resistance. Cation‐π interaction across interface enhances interface carrying capacity. Due to strong cation‐π bonding, IPEZGC exhibits outstanding tensile strength. PEW was embedded as healing agent to obtain self‐healing property.

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