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Journal articles on the topic 'Liquid superlubricity'

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1

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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2

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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3

Xiao, Chen, Jinjin Li, Lei Chen, Chenhui Zhang, Ningning Zhou, Linmao Qian, and Jianbin Luo. "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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4

Xiao, Chen, Jinjin Li, Jian Gong, Lei Chen, Jiyang Zhang, Linmao Qian, and Jianbin Luo. "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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5

Ma, Qiang, Tao He, Arman Mohammad Khan, Q. Wang, and Yip-Wah Chung. "Achieving macroscale liquid superlubricity using glycerol aqueous solutions." Tribology International 160 (August 2021): 107006. http://dx.doi.org/10.1016/j.triboint.2021.107006.

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6

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 (December 4, 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 phase transitions occur and explain friction coefficients spanning several orders of magnitude. We find that commensurate surface alignment and presence of water at the interfaces each lead to moderate or high friction, whereas friction coefficients down toμ≈0.001are observed for a single molecular layer of dodecane trapped between crystallographically misaligned dry surfaces. This ultralow friction is attributed to sliding at the incommensurate interface between one of the mica surfaces and the laterally ordered solid molecular film, reconciling previous interpretations.
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7

Ma, Wei, Zhenbin Gong, Kaixiong Gao, Li Qiang, Junyan Zhang, and Shurong Yu. "Superlubricity achieved by carbon quantum dots in ionic liquid." Materials Letters 195 (May 2017): 220–23. http://dx.doi.org/10.1016/j.matlet.2017.02.135.

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8

Liu, Pengxiao, Yuhong Liu, Ye Yang, Zhe Chen, Jinjin Li, and Jianbin Luo. "Mechanism of Biological Liquid Superlubricity of Brasenia schreberi Mucilage." Langmuir 30, no. 13 (March 28, 2014): 3811–16. http://dx.doi.org/10.1021/la500193n.

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9

Wang, Hongdong, and Yuhong Liu. "Superlubricity achieved with two-dimensional nano-additives to liquid lubricants." Friction 8, no. 6 (July 23, 2020): 1007–24. http://dx.doi.org/10.1007/s40544-020-0410-3.

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10

Ma, Qiang, Shijian Wang, and Guangneng Dong. "Macroscale liquid superlubricity achieved with mixtures of fructose and diols." Wear 484-485 (November 2021): 204037. http://dx.doi.org/10.1016/j.wear.2021.204037.

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11

Ge, Xiangyu, Jinjin Li, Chenhui Zhang, and Jianbin Luo. "Liquid Superlubricity of Polyethylene Glycol Aqueous Solution Achieved with Boric Acid Additive." Langmuir 34, no. 12 (March 5, 2018): 3578–87. http://dx.doi.org/10.1021/acs.langmuir.7b04113.

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12

Li, Jinjin, Chenhui Zhang, Peng Cheng, Xinchun Chen, Weiqi Wang, and Jianbin Luo. "AFM Studies on Liquid Superlubricity between Silica Surfaces Achieved with Surfactant Micelles." Langmuir 32, no. 22 (May 26, 2016): 5593–99. http://dx.doi.org/10.1021/acs.langmuir.6b01237.

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13

Gao, Yuan, Liran Ma, Yong Liang, Bohong Li, and Jianbin Luo. "Water molecules on the liquid superlubricity interfaces achieved by phosphoric acid solution." Biosurface and Biotribology 4, no. 3 (September 2018): 94–98. http://dx.doi.org/10.1049/bsbt.2018.0021.

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14

Wen, Xiangli, Pengpeng Bai, Yuanzhe Li, Hui Cao, Shaowei Li, Bin Wang, Jingbo Fang, Yonggang Meng, Liran Ma, and Yu Tian. "Effects of Abrasive Particles on Liquid Superlubricity and Mechanisms for Their Removal." Langmuir 37, no. 12 (March 18, 2021): 3628–36. http://dx.doi.org/10.1021/acs.langmuir.0c03607.

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15

Ge, Xiangyu, Jinjin Li, Chenhui Zhang, Zhongnan Wang, and Jianbin Luo. "Superlubricity of 1-Ethyl-3-methylimidazolium trifluoromethanesulfonate Ionic Liquid Induced by Tribochemical Reactions." Langmuir 34, no. 18 (April 19, 2018): 5245–52. http://dx.doi.org/10.1021/acs.langmuir.8b00867.

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16

Schreiber, P. J., and J. Schneider. "Liquid superlubricity obtained for self-mated silicon carbide in nonaqueous low-viscosity fluid." Tribology International 134 (June 2019): 7–14. http://dx.doi.org/10.1016/j.triboint.2019.01.031.

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17

Jiang, Yuanyuan, Chen Xiao, Lei Chen, Jinjin Li, Chenhui Zhang, Ningning Zhou, Linmao Qian, and Jianbin Luo. "Temporary or permanent liquid superlubricity failure depending on shear-induced evolution of surface topography." Tribology International 161 (September 2021): 107076. http://dx.doi.org/10.1016/j.triboint.2021.107076.

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18

Li, Hua, Ross J. Wood, Mark W. Rutland, and Rob Atkin. "An ionic liquid lubricant enables superlubricity to be “switched on” in situ using an electrical potential." Chemical Communications 50, no. 33 (2014): 4368. http://dx.doi.org/10.1039/c4cc00979g.

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19

Ge, Xiangyu, Jinjin Li, Hongdong Wang, Chenhui Zhang, Yuhong Liu, and Jianbin Luo. "Macroscale superlubricity under extreme pressure enabled by the combination of graphene-oxide nanosheets with ionic liquid." Carbon 151 (October 2019): 76–83. http://dx.doi.org/10.1016/j.carbon.2019.05.070.

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20

Zhang, Yunxiao, Mark W. Rutland, Jiangshui Luo, Rob Atkin, and Hua Li. "Potential-Dependent Superlubricity of Ionic Liquids on a Graphite Surface." Journal of Physical Chemistry C 125, no. 7 (February 11, 2021): 3940–47. http://dx.doi.org/10.1021/acs.jpcc.0c10804.

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21

Ge, Xiangyu, Jinjin Li, Chenhui Zhang, Yuhong Liu, and Jianbin Luo. "Superlubricity and Antiwear Properties of In Situ-Formed Ionic Liquids at Ceramic Interfaces Induced by Tribochemical Reactions." ACS Applied Materials & Interfaces 11, no. 6 (January 18, 2019): 6568–74. http://dx.doi.org/10.1021/acsami.8b21059.

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22

Ren, Xiaoyong, Xiao Yang, Guoxin Xie, Feng He, Rong Wang, Chenhui Zhang, Dan Guo, and Jianbin Luo. "Superlubricity under ultrahigh contact pressure enabled by partially oxidized black phosphorus nanosheets." npj 2D Materials and Applications 5, no. 1 (April 16, 2021). http://dx.doi.org/10.1038/s41699-021-00225-0.

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AbstractSuperlubricity has recently raised an increasing interest owing to its great potential in energy saving and environmental benefits. Yet how to obtain stable superlubricity under an ultrahigh contact pressure (>1 GPa) still remains a challenge. Here, we demonstrate that robust liquid superlubricity can be realized even under a contact pressure of 1193 MPa by lubrication with partially oxidized black phosphorus (oBP) nanosheets. The analysis indicates that the oBP nanosheets that absorb large amounts of water molecules are retained at the friction interface and transform the friction pairs interface to that between the oBP nanosheets. Molecular dynamics simulation demonstrates that water molecules could be retained at the friction interface even under the ultrahigh contact pressure owing to the abundant P=O and P–OH bonds formed on the oBP nanosheet surfaces, contributing to the achievement of stable superlubricity under the ultrahigh contact pressure. This work has the potential of introducing the liquid superlubricity concept in diverse industrial applications involving high-contact-pressure operating conditions.
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23

Tan, Shanchao, Jiayu Tao, Wendi Luo, Hongyu Shi, Bin Tu, Hao Jiang, Yuhong Liu, Haijun Xu, and Qingdao Zeng. "Insight Into the Superlubricity and Self-Assembly of Liquid Crystals." Frontiers in Chemistry 9 (June 11, 2021). http://dx.doi.org/10.3389/fchem.2021.668794.

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Liquid crystals are promising molecular materials in the application of lubrication. Herein, the microscale solid superlubricity is accomplished by the construction of uniform and ordered self-assembly of several liquid crystals. The self-assembly structures on a highly oriented pyrolytic graphite (HOPG) surface are explicitly revealed by using scanning tunneling microscopy (STM). Meanwhile, the nanotribological performance of the self-assemblies are measured by using atomic force microscopy (AFM), revealing ultralow friction coefficients lower than 0.01. The interaction energies are calculated by density functional theory (DFT) method, indicating the positive correlation between friction coefficients and interaction strength. The effort on the self-assembly and superlubricity of liquid crystals could enhance the understanding of the nanotribological mechanism and benefit the further application of liquid crystals as lubricants.
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24

Ge, Xiangyu, Jinjin Li, and Jianbin Luo. "Macroscale Superlubricity Achieved With Various Liquid Molecules: A Review." Frontiers in Mechanical Engineering 5 (February 5, 2019). http://dx.doi.org/10.3389/fmech.2019.00002.

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25

Gao, Xinlei, Hao Chen, Sichao Lv, Zhiyong Zhang, and Tingting Wang. "Preliminary Study of the Superlubricity Behavior of Polyimide-Induced Liquid Crystal Alignment." Journal of Tribology 144, no. 4 (July 12, 2021). http://dx.doi.org/10.1115/1.4051546.

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Abstract We have studied the friction behavior based on liquid crystal (LC) alignment of a unique tribological system composed of a nematic LC and polyimide (PI). The LC was used as a lubricant and a tribological factor with molecular alignment ability. PI was used as both a rubbing pair part and a LC alignment agent. The LCs used as lubricants included the single LC 5CB and the mixed LCs 5CB–2UTPP3 and 3PEP5–3UTPP4. The PI used as the friction pair was 6FDA-ODA PI, and its counterpart was GCr15 steel. For this system, it was found that under the premise that the nematic phase temperature range of the selected LC meets the operating temperature of the friction test at a suitable ambient temperature, the operating speed and load are controlled to maintain a stable lubricating film thickness between the friction pairs during operation of the system. Moreover, by avoiding excessive or insufficient friction heat generated by the running speed being too high or too low to change the phase state of the LC, with the anchoring energy between the PI and the LC, the LC molecules will align in the rubbing direction, that is, they will arrange parallel to each other along the grooves, which can contribute to achieve superlubricity behavior.
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