Results 161 to 170 of about 1,899 (209)

Superlubricity: a state of vanishing friction

Wear, 2000
Abstract The state of vanishing friction called “superlubricity” is discussed from theoretical and experimental viewpoints. We study the friction system consisting of two contacting surfaces, and derive the condition for the non-adiabatic motion of atoms to occur.
openaire   +1 more source

High-Temperature Superlubricity in MoS2/Graphene van der Waals Heterostructures.

Nano letters (Print)
Achieving high-temperature superlubricity is essential for modern extreme tribosystems. Solid lubrication is the sole viable alternative due to the degradation of liquid ones but currently suffers from notable wear, instability, and high friction ...
Yuyang Long, Xiao Wang, Wang Tan, Baowen Li, Jidong Li, Wei Deng, Xuemei Li, Wanlin Guo, Jun Yin   +8 more
semanticscholar   +1 more source

Quantifying Superlubricity of Bilayer Graphene from the Mobility of Interface Dislocations.

ACS Applied Materials and Interfaces
Van der Waals (vdW) heterostructures subjected to interlayer twists or heterostrains demonstrate structural superlubricity, leading to their potential use as superlubricants in micro- and nanoelectromechanical devices. However, quantifying superlubricity
Md Tusher Ahmed, M. Choi, H. Johnson, N. Admal   +3 more
semanticscholar   +1 more source

Macroscale Superlubricity Composites with Self‐Healing Functions

Advanced Functional Materials
Achieving macroscale superlubricity with self‐healing functions in materials is pivotal to diminishing friction and prolonging the service life in mechanical engineering, yet challenges remain in intricate design and the fundamental trade‐off between ...
Min Ji, Mengyu Li, Hao Chen, Xiaoyi Wu, Peili Gao, Lin Zhang, Guoxin Xie   +6 more
semanticscholar   +1 more source

Superlubricity of dry nanocontacts

Journal of Physics: Condensed Matter, 2008
We discuss how various forms of dry superlubricity, recently observed on the nanoscale, have been interpreted by simple phenomenological models. In particular, we review the cases of static and dynamic single-contact lubricity, thermolubricity, and structural lubricity.
Gnecco, Enrico, Maier, Sabine, Meyer, Ernst   +2 more
openaire   +2 more sources

Robust Superlubricity in Artificial Cartilage Hydrogels via Gradient Stress Dissipation and Comb‐Like Polymer Structures

Advanced Functional Materials
Hydrogels are among the most promising materials for joint cartilage replacement due to their hydrophilicity, high water content, biocompatibility, and lubricating properties.
Shuo Gu, Teng Li, Yanbin Wang, Bin Li, Yupu Wang, Zhencai Xing, Hao Yang, Yanhong Song, Xuzhi Hu, Chenxi Qin, Yanfei Ma, Feng Zhou   +11 more
semanticscholar   +1 more source

Superlubricity

2021
Erdemir, Ali, Martin, Jean-Michel, Luo, Jianbin   +2 more
openaire   +2 more sources

Macroscale Superlubricity on High‐Roughness Engineering Steel Surface Through Wear Debris‐Converted Tribofilm and Carbon Nanotubes

Advanced Functional Materials
Macroscale liquid superlubricity has profound significance for energy conservation and emission reduction. However, it suffers from low tolerance to high roughness, which seriously hinders the application in engineering friction systems.
Hujun Wang, Hongcai Huang, Jun Zhang, Gaohui Han, Wei Tian, Fumin Zuo, Wei Liu, Jing Zheng, Zhihui Zhang, Zhongrong Zhou   +9 more
semanticscholar   +1 more source

Tailoring Surface Roughness for Enhanced Superlubricity of Ni-Based Coatings in Neutral Aqueous Sodium Hypophosphite Lubricant.

Langmuir
Superlubricity is typically attained on sliding counterpart surfaces with relatively smooth morphologies. This study explores the lubrication efficacy of NaH2PO2 aqueous lubricant on Ni-P coatings with a surface roughness in the range of 70-400 nm.
Huijie Zhang, Kai Le, Weijie Yang, Yifei Zhou, Juan Jin, Yanhong Sun, Shengxiao Zhang, Shusheng Xu   +7 more
semanticscholar   +1 more source

Controllable Superlubricity of Ricinoleic Acid/Tungsten-Doped Amorphous Carbon Coating Composite System via Water Content.

Langmuir
Carbon-based coatings combined with ricinoleic acid exhibit exceptional lubrication and macroscale superlubricity, yet the influence of the water content remains insufficiently explored. In this paper, a tungsten-doped amorphous carbon coating/ricinoleic
Pengcheng Ma, Liuqing Yang, Longfei Wu, Qiang Wang, Cuijuan Xuan, Junying Hao, Xudong Sui   +6 more
semanticscholar   +1 more source