Academic literature on the topic 'Liquid superlubricity'

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Journal articles on the topic "Liquid superlubricity"

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Zeng, Qunfeng, and Wenling Zhang. "A Systematic Review of the Recent Advances in Superlubricity Research." Coatings 13, no. 12 (2023): 1989. http://dx.doi.org/10.3390/coatings13121989.

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Friction and the wear caused by friction will not only lead to energy dissipation, but will also cause damage to the function of mechanical parts, affecting the precision and lifespan of mechanical devices. Superlubricity as an ideal state of zero friction has become a hot research topic in recent years. There have been many reviews on the concept, origin, and research progress of superlubricity, but, among them, there are more presentations on the research status of solid superlubricity and liquid superlubricity; however, the theoretical summarization of solid–liquid combined superlubricity a
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Li, Jinjin, Chenhui Zhang, Mingming Deng, and Jianbin Luo. "Investigation of the difference in liquid superlubricity between water- and oil-based lubricants." RSC Advances 5, no. 78 (2015): 63827–33. http://dx.doi.org/10.1039/c5ra10834a.

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The difference in superlubricity behavior between water- and oil-based lubricants is investigated and the liquid superlubricity region dependent on pressure and the pressure–viscosity coefficient is established.
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Gao, Xinlei, Yuwei Cheng, Miaomiao Shi, Hao Chen, Li Wu, and Tingting Wang. "Design of Superlubricity System Using Si3N4/Polyimide as the Friction Pair and Nematic Liquid Crystals as the Lubricant." Polymers 15, no. 18 (2023): 3693. http://dx.doi.org/10.3390/polym15183693.

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Polyimide (PI) is a high-performance engineering plastic used as a bearing material. A superlubricity system using Si3N4/PI as the friction pair and nematic liquid crystals (LCs) as the lubricant was designed. The superlubricity performance was studied by simulating the start-stop condition of the machine, and it was found that the superlubricity system had good reproducibility and stability. In the superlubricity system, friction aligned with the PI molecules, and this alignment was less relevant compared to which substance was rubbing on the PI. Oriented PI molecules induced LC molecule alig
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Ge, Xiangyu, Zhiyuan Chai, Qiuyu Shi, Yanfei Liu, Jiawei Tang, and Wenzhong Wang. "Liquid Superlubricity Enabled by the Synergy Effect of Graphene Oxide and Lithium Salts." Materials 15, no. 10 (2022): 3546. http://dx.doi.org/10.3390/ma15103546.

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In this study, graphene oxide (GO) nanoflakes and lithium salt (LiPF6) were utilized as lubrication additives in ether bond−containing dihydric alcohol aqueous solutions (DA(aq)) to improve lubrication performances. The apparent friction reduction and superlubricity were realized at the Si3N4/sapphire interface. The conditions and laws for superlubricity realization have been concluded. The underlying mechanism was the synergy effect of GO and LiPF6. It was proven that a GO adsorption layer was formed at the interface, which caused the shearing interface to transfer from solid asperities to GO
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Du, Changhe, Tongtong Yu, Zishuai Wu, et al. "Achieving macroscale superlubricity with ultra-short running-in period by using polyethylene glycol-tannic acid complex green lubricant." Friction 11, no. 5 (2023): 748–62. http://dx.doi.org/10.1007/s40544-022-0660-3.

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AbstractSuperlubricating materials can greatly reduce the energy consumed and economic losses by unnecessary friction. However, a long pre-running-in period is indispensable for achieving superlubricity; this leads to severe wear on the surface of friction pairs and has become one of the important factors in the wear of superlubricating materials. In this study, a polyethylene glycol-tannic acid complex green liquid lubricant (PEG10000-TA) was designed to achieve macroscale superlubricity with an ultrashort running-in period of 9 s under a contact pressure of up to 410 MPa, and the wear rate w
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Li, Jinjin, Chenhui Zhang, and Jianbin Luo. "Effect of pH on the liquid superlubricity between Si3N4 and glass achieved with phosphoric acid." RSC Adv. 4, no. 86 (2014): 45735–41. http://dx.doi.org/10.1039/c4ra04970e.

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Gong, Penghui, Yishen Qu, Wei Wang, Fanfan Lv, and Jie Jin. "Macroscale Superlubricity of Black Phosphorus Quantum Dots." Lubricants 10, no. 7 (2022): 158. http://dx.doi.org/10.3390/lubricants10070158.

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In the present work, Black Phosphorus Quantum Dots (BPQDs) were synthesized via sonication-assisted liquid-phase exfoliation. The average size of the BPQDs was 3.3 ± 0.85 nm. The BPQDs exhibited excellent dispersion stability in ultrapure water. Macroscale superlubricity was realized with the unmodified BPQDs on rough Si3N4/SiO2 interfaces. A minimum coefficient of friction (COF) of 0.0022 was achieved at the concentration of 0.015 wt%. In addition, the glycerol was introduced to promote the stability of the superlubricity state. The COF of the BPQDs-Glycerol aqueous solution (BGaq) was 83.75%
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Xiao, Chen, Jinjin Li, Lei Chen, et al. "Speed dependence of liquid superlubricity stability with H3PO4 solution." RSC Adv. 7, no. 78 (2017): 49337–43. http://dx.doi.org/10.1039/c7ra09217b.

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Xiao, Chen, Jinjin Li, Jian Gong, et al. "Gradual degeneration of liquid superlubricity: Transition from superlubricity to ordinary lubrication, and lubrication failure." Tribology International 130 (February 2019): 352–58. http://dx.doi.org/10.1016/j.triboint.2018.10.008.

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Smith, Alexander M., James E. Hallett, and Susan Perkin. "Solidification and superlubricity with molecular alkane films." Proceedings of the National Academy of Sciences 116, no. 51 (2019): 25418–23. http://dx.doi.org/10.1073/pnas.1910599116.

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Hydrocarbon films confined between smooth mica surfaces have long provided an experimental playground for model studies of structure and dynamics of confined liquids. However, fundamental questions regarding the phase behavior and shear properties in this simple system remain unsolved. With ultrasensitive resolution in film thickness and shear stress, and control over the crystallographic alignment of the confining surfaces, we here investigate the shear forces transmitted across nanoscale films of dodecane down to a single molecular layer. We resolve the conditions under which liquid–solid ph
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Dissertations / Theses on the topic "Liquid superlubricity"

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Poláček, Tomáš. "Parametry mazací vrstvy a třecích povrchů v kontaktu pracujícím v režimu superlubricity." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443755.

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The work investigates the reduction of friction between non-conformal macro contacts with partial slip. The measurement of the coefficient of friction, with the magnitude of the superlubricity, is extended by the influence of relative slip, direct observation of the contact area and the measurement of the thickness of the lubricating film. It also includes a comparison of changes in topography by friction. The experiments were mainly performed on a ball-on-disk tribometer with measuring the film thickness by colorimetic interferometry. The surface roughness changes were investigated using an o
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Book chapters on the topic "Liquid superlubricity"

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Zhang, Chenhui, Ke Li, and Jianbin Luo. "Superlubricity with nonaqueous liquid." In Superlubricity. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-444-64313-1.00020-x.

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Wang, Hongdong, Jinjin Li, Yuhong Liu, and Jianbin Luo. "Liquid superlubricity with 2D material additives." In Superlubricity. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-444-64313-1.00010-7.

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Ma, Liran, and Jianbin Luo. "Exploration of molecular behaviors in liquid superlubricity." In Superlubricity. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-444-64313-1.00024-7.

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Liu, Yuhong. "Approaching superlubricity under liquid conditions and boundary lubrication— superlubricity of biomaterials." In Superlubricity. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-444-64313-1.00021-1.

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Han, Tianyi, Chenhui Zhang, and Jianbin Luo. "Ion Adsorption and Hydration Superlubricity." In Adsorption - Fundamental Mechanisms and Applications [Working Title]. IntechOpen, 2024. https://doi.org/10.5772/intechopen.1008486.

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The surface-water interactions are pivotal in interfacial functions and properties relevant in many natural processes, particularly the lubrication systems of living organisms, like the articular cartilage, oral mucosa, cardiovascular system, muscle, and tendon tissue. The ion adsorption often determines interfacial lubrication performance, especially hydration superlubricity, which depends on the surface charge characteristics and ion types. The hydration superlubricity mechanism has been well understood over the past 30 years, which further promotes the exploration and development of artific
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Conference papers on the topic "Liquid superlubricity"

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Erdemir, A., and J. M. Martin. "New Materials and Coatings for Superlubricity and Near-Wearless Sliding." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44402.

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Superlubricity is defined as a new sliding regime in which friction or resistance to sliding almost vanishes. Because of its enormous implications for a wide range of transportation and manufacturing systems, it has attracted increasing interest in recent years from both the research and industrial communities (see a recent book on this subject in Ref. 1). From a practical point of view, development and uses of new materials, coatings, and/or lubricants that can enable superlubricity in moving mechanical systems will have huge positive impact on saving energy and reducing emissions. The annual
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