Results 31 to 40 of about 17,356 (156)

Macroscale superlubricity enabled by graphene nanoscroll formation [PDF]

Science, 2015
Slip sliding away Many applications would benefit from ultralow friction conditions to minimize wear on the moving parts such as in hard drives or engines. On the very small scale, ultralow friction has been observed with graphite as a lubricant. Berman et al.
Diana Berman, Sanket A. Deshmukh, Subramanian K. R. S. Sankaranarayanan, Ali Erdemir, Anirudha V. Sumant   +4 more
openaire   +1 more source

Understanding and Preventing Lubrication Failure at the Carbon Atomic Steps

Small, Volume 19, Issue 37, September 13, 2023., 2023
At the graphene step edge, the armchair (AC) structure gives only a minor topographic effect on friction, while the zigzag (ZZ) structure induces friction two orders of magnitude larger than the basal friction. The high‐friction ZZ edge becomes superlubricious through reconstructing to the (5,7) azulene‐like structure upon thermal annealing in an inert
Wenmeng Yan, Fakhrul H. Bhuiyan, Chuan Tang, Liang Wei, Yilong Jiang, Seokhoon Jang, Yangqin Liu, Jiang Wu, Wen Wang, Yang Wang, Ashlie Martini, Linmao Qian, Seong H. Kim, Lei Chen   +13 more
wiley   +1 more source

Innovative Technology for Self‐Powered Sensors: Triboelectric Nanogenerators

Advanced Sensor Research, Volume 2, Issue 5, May 2023., 2023
Internet of Things and wearable technology's quick development have opened up a vast market for sensor systems. Triboelectric nanogenerators (TENGs) efficiently provide crucial infrastructure for a new generation of sensing devices that gather data using several self‐powered sensors in abundance.
Nannan Wang, Yupeng Liu, Enyi Ye, Zibiao Li, Daoai Wang   +4 more
wiley   +1 more source

Liquid superlubricity of lubricants containing hydroxyl groups and their aqueous solution under rolling/sliding conditions

Friction, 2023
Macroscale rolling/sliding conditions are in the superlubricity, a little-studied topic so far. The purpose of this paper is to examine the formation of elastohydrodynamic lubrication (EHL) films by water-based lubricants (glycerol and polyethylene ...
Tomáš Poláček, Petr Šperka, Ivan Křupka   +2 more
doaj   +1 more source

Boosting the Durability of Triboelectric Nanogenerators: A Critical Review and Prospect

Advanced Functional Materials, Volume 33, Issue 14, April 4, 2023., 2023
The durability of triboelectric nanogenerators (TENGs) is reviewed via both the advanced materials/structure designing and the novel surface/interface engineering, which include choosing basis TENG materials, improving composites performance, optimizing structures and designing triboelectric surfaces and interfaces.
Jun Zhao, Yijun Shi
wiley   +1 more source

Superlubricity achieved with two-dimensional nano-additives to liquid lubricants

Friction, 2020
The topic of superlubricity is attracting considerable interest around the world while humanity is facing an energy crisis. Since various liquid superlubricity systems can be commonly achieved on the macroscale in ambient conditions, it is considered an ...
Hongdong Wang, Yuhong Liu
doaj   +1 more source

Operando Formation of Van der Waals Heterostructures for Achieving Macroscale Superlubricity on Engineering Rough and Worn Surfaces

, 2022
Macroscale superlubricity breakdown of lubricating materials caused by substrate surface roughening and mechanochemical modification poses great challenges for their practical tribological applications.
Jiangong Li, Zhang, Junyan, Yang, Xing, Xing Yang, Junyan Zhang, Yue, Chengtao, Meyer, Ernst,, Li, Ruiyun, Meyer, Ernst, Zhao, Jun, Zhao, Jun,, Yue, Chengtao,, Li, Jiangong,, Li, Ruiyun,, Wang, Yongfu, Zhang, Junyan,, Yang, Xing,, Shi, Yijun,, Jun Zhao, Yongfu Wang, Ruiyun Li, Ernst Meyer, Chengtao Yue, Wang, Yongfu,, Shi, Yijun, Yijun Shi, Li, Jiangong   +26 more
core   +1 more source

Observation of Robust Macroscale Structural Superlubricity

Physical Review Letters
Structural superlubricity (SSL) promises nearly frictionless and wearless sliding but has until now been considered a special and extreme interfacial phenomenon limited to micro- and nanoscale contacts. Here, we demonstrate robust macroscale SSL within a single submillimeter graphite contact.
Minhao Han, Deli Peng, Dinglin Yang, Jin Wang, Yi Zheng, Guofeng Hu, Yifan Shao, Jiaying Li, Feng Ding, Zhiping Xu, Michael Urbakh, Quanshui Zheng   +11 more
openaire   +4 more sources

Superlubricity of graphene nanoribbons on gold surfaces [PDF]

, 2016
The state of vanishing friction known as superlubricity has important applications for energy saving and increasing the lifetime of devices. Superlubricity, as detected with atomic force microscopy, appears when sliding large graphite flakes or gold ...
Muellen, Klaus, Benassi, Andrea, Gnecco, E., Passerone, D., Sode, H., Pawlak, R., Pignedoli, C. A., Ruffieux, P., Mullen, K., Meyer, Ernst, Pignedoli, Carlo A., Gnecco, Enrico, Meyer, E., Benassi, A., Kawai, S., Feng, Xinliang, Kawai, Shigeki, Passerone, Daniele, Fasel, Roman, Ruffieux, Pascal, Pawlak, Remy, Fasel, R., Pignedoli, C., Feng, X., Soede, Hajo   +24 more
core   +2 more sources

Macroscale superlubricity enabled by rationally designed MoS2-based superlattice films [PDF]

, 2022
Abstract Although superlubricity is highly desirable for many engineering applications, its implementation has so far been seriously restricted due to limitations in contact size, environmental adaptability and life time. By designing superlattice films with alternating molybdenum disulfide (MoS2) and tungsten carbide (WC) layers, we show that ...
Siming Ren, Mingjun Cui, Ashlie Martini, Yanbin Shi, Haixin Wang, Jibin Pu, Qunyang Li, Liping Wang   +7 more
openaire   +1 more source