Results 261 to 270 of about 6,710,712 (351)

Study on tribological properties of a novel composite by filling microcapsules into UHMWPE matrix for water lubrication

, 2021
Water-lubricated bearings usually suffer severe abrasion under low-speed working conditions. Use of microencapsulated lubricants to modify the materials seems to be useful for reducing friction and wear in a bearing.
Zhenxiang Yang, Zhiwei Guo, Zongrong Yang, Chaobao Wang, C. Yuan   +4 more
semanticscholar   +1 more source

Dry Skin, Water, and Lubrication

Dermatologic Clinics, 1991
Lubrication of the skin will become more important as our population ages. Many excellent moisturizers are available for lubrication. Individual ingredients that are touted heavily are not as important as the total mixture. The single most important factor is the regular use of the products to prevent overdrying of the skin.
A P, Lazar, P, Lazar
openaire   +2 more sources

Water Lubricated Bearings

2012
The increasing ecological awareness and stringent requirements for environmental protection have led to the development of water lubricated bearings in many applications where oil was used as the lubricant. The chapter details the theoretical analysis to determine both the static and dynamic characteristics, including the stability (using both the ...
Pai, Raghuvir, Hargreaves, Doug
openaire   +2 more sources

Water deteriorates lubricating oils: removal of water in lubricating oils using a robust superhydrophobic membrane

Nanoscale, 2020
Lubricating oil failure caused by water is solved by a robust membrane that shows steady performance in regard to extreme water repellency, high-efficiency purification of lubricating oils, and low wear volume even after harsh mechanical damage.
Siyang Zhao, Lu Tie, Zhiguang Guo, Jing Li   +3 more
openaire   +2 more sources

Water lubricates hydrogen-bonded molecular machines

Nature Chemistry, 2013
The mechanical behaviour of molecular machines differs greatly from that of their macroscopic counterparts. This applies particularly when considering concepts such as friction and lubrication, which are key to optimizing the operation of macroscopic machinery.
Panman, M.R., Bakker, B.H., den Uyl, D., Kay, E.R., Leigh, D.A., Buma, W.J., Brouwer, A.M., Geenevasen, J.A.J., Woutersen, S.   +8 more
openaire   +5 more sources

Enhancing Water Lubrication in UHMWPE Using Mesoporous Polydopamine Nanoparticles: A Strategy to Mitigate Frictional Vibration.

ACS Applied Materials and Interfaces
Establishing a persistent lubrication mechanism and a durable tribo-film on contact surfaces is identified as crucial for improving the tribology and vibration characteristics of polymer materials under water-lubricated conditions.
Tun Cai, C. Dong, Chengqing Yuan, Xiuqin Bai, D. Jia, H. Duan, Zhanmo Zheng   +6 more
semanticscholar   +1 more source

The role of water lubrication in critical state fault slip

, 2020
The conventional driving mechanisms including elevating the pore pressure or far-reaching poroelastic effects, may not necessarily explain the injection-triggered seismicity that can be up to 35–90 km far away from injection wells.
Z. Dou, Tianyang Gao, Zhihong Zhao, Jinjin Li, Qiang Yang, Delei Shang   +5 more
semanticscholar   +1 more source

Molecular dynamics study of the removal mechanism of SiC in a fixed abrasive polishing in water lubrication

, 2020
The mechanical removal mechanism of SiC substrates in the water-lubricated environment is investigated by molecular dynamics (MD) simulation. The surface quality, subsurface damage, removal efficiency and structural phase transition of SiC substrates ...
P. Zhou, Jun Li, Zikun Wang, Jiapeng Chen, Xue Li, Y. Zhu   +5 more
semanticscholar   +1 more source

Water Lubricated Bearing Lubrication Model Based on Multilayer Gridding

Applied Mechanics and Materials, 2011
The principle of the multilayer gridding algorithm, as well as its applications to the numerical calculation of water lubricated plastic alloy bearing elastohydrodynamic lubrication (EHL), was described. The computation of water lubricated plastic alloy bearing EHL was carried out by the numerical model based on the linear contact theory.
Jin Min Peng, Jiang Bo Yu
openaire   +1 more source

A molecular dynamics study on water lubrication of PTFE sliding against copper

Tribology International, 2019
The tribological models of the PTFE sliding against Copper (Cu) layer under dry friction and water lubrication were developed by a molecular dynamics (MD) simulation to examine the friction coefficient and wear process from an atomic view, respectively ...
Song Jingfu, Gaiqing Zhao, Gai Zhao
semanticscholar   +1 more source