Results 101 to 110 of about 1,178 (193)

Macroscale structural superlubricity: Dynamic evolution of tribolayers in two-dimensional materials under extreme pressure [PDF]

Achieving macroscale structural superlubricity with two-dimensional (2D) materials under ultrahigh contact pressure in ambient condition is particularly challenging.
Liu, Y, Ge, X, Wang, W, Zhang, R, Fan, Z, Yu, S, Zhang, J, Liskiewicz, TW   +7 more
core   +1 more source

Friction of two-dimensional colloidal particles with magnetic dipole and Lennard–Jones interactions: A numerical study

Friction, 2019
We use Langevin simulations to study the sliding friction of two-dimensional colloidal particles on a substrate with randomly distributed point-like pinning centers.
Zhongying Zhang, Cange Wu, Qi Zhang, Yigang Cao   +3 more
doaj   +1 more source

Origin of superlubricity of diamond-like carbon (DLC)

Friction
Hydrogenated diamond-like carbon (H-DLC) is typically produced as a coating or thin film through plasma-enhanced chemical vapor deposition (PE-CVD). H-DLC is relatively hard and well known to exhibit superlubricity.
Seokhoon Jang, Zhe Chen, Seong H. Kim
doaj   +1 more source

Superlubric sliding ferroelectricity

Applied Physics Reviews
Structural superlubricity at incommensurate van der Waals interfaces leads to ultra-low friction coefficients. In this study, we try to apply a similar strategy to reduce the barrier of sliding ferroelectricity in van der Waals bilayers/multilayers with commensurate interfaces, since the writing speed in ferroelectric memories would be enhanced almost ...
Zihao Yang, Menghao Wu
openaire   +2 more sources

Observation of normal force-independent superlubricity in mesoscopic graphite contacts

, 2016
International audienceWe investigate the dependence of friction forces on normal load in incommensurate micrometer-size contacts between atomically smooth single-crystal graphite surfaces under ambient conditions. Our experimental results show that these
Zhang, S.M., Zheng, Q.S., He, Q.-C., Li, Q.Y., Vu, C.C., Urbakh, M.   +5 more
core   +1 more source

Prospects and Challenges for Achieving Superlubricity in Porous Framework Materials (MOFs/POFs): A Review

Lubricants
Metal–organic frameworks (MOFs) and porous organic frameworks (POFs) have been extensively explored in recent years as lubricant additives for various systems due to their structural designability, pore storage capacity, and tunable surface chemistry ...
Ruishen Wang, Xunyi Liu, Sifan Huo, Mingming Liu, Jiasen Zhang, Yuhong Liu, Yanhong Cheng, Caixia Zhang   +7 more
doaj   +1 more source

Whole course oil-based superlubricity for polyetheretherketone-bearing steel sliding pair by introducing tribocatalytically active dialkyl-dithiophosphoric-modified copper nanoparticles in poly-alpha olefin oil

Friction
At present, achieving oil-based superlubricity depends on lubricating oil viscosity and rubbing pair materials excessively. Therefore, establishing a new route is of scientific significance and application value.
Jiajing Wang, Chuanping Gao, Chunjian Duan, Guangbin Yang, Jingyi Ma, Laigui Yu, Shengmao Zhang, Pingyu Zhang, Zhijun Zhang   +8 more
doaj   +1 more source

Long-Term Stable Superlubricity Coatings Enabled by the Interaction between the Polydimethylsiloxane Brush and Silicone Oil

Recently, materials with superlubricity captured widespread attention on account of their great potential in energy savings and environmental protection.
Tong Wang (87696), Jin Yang (86490), Shangfei Chen (17966122), Yafei Sun (5113316), Haojie Song (3947795), Xiaohua Jia (506910)   +5 more
core   +1 more source

Insight into remarkable oil superlubricity enabled by polyether-modified silicone oil on engineering steel

Friction
The achievement of a superlubric state with vanishing friction and negligible wear has important applications in minimizing energy dissipation and prolonging the service life of moving mechanical systems.
Qiang Ma, Chengpeng Yan, Xin Xu, Meidi Liang, Ke Hua, Haifeng Wang   +5 more
doaj   +1 more source

REFINEMENT OF FRICTION PHASE DIAGRAM OF ATOMIC FRICTION MATHEMATICAL MODEL BY STABILITY ANALYSIS OF SUPERLUBRICITY

, 2023
Studying on the dynamics of friction phenomena at the atomic level. Friction is formulated as a problem of whether or not given kinetic energy for the translational motion dissipates into the kinetic energies for internal motions during sliding. From the
久保田 優作
core