Results 251 to 260 of about 85,954 (306)
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Boundary lubrication under water
Nature, 2006Boundary lubrication, in which the rubbing surfaces are coated with molecular monolayers, has been studied extensively for over half a century. Such monolayers generally consist of amphiphilic surfactants anchored by their polar headgroups; sliding occurs at the interface between the layers, greatly reducing friction and especially wear of the ...
Briscoe, WH +5 more
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Dry Skin, Water, and Lubrication
Dermatologic Clinics, 1991Lubrication 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
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Analysis of the Interface Lubrication Performances of Water Lubrication Bearing
2020 Global Reliability and Prognostics and Health Management (PHM-Shanghai), 2020The paper explores effects of velocity on lubrication performances of water lubricated bearing. Variations between lubrication performances and velocity are obtained. Research show that velocity has important effects on lubrication performances.
Zhongliang Xie +4 more
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Lubrication in a Sea Water Environment
SAE Technical Paper Series, 1963<div class="htmlview paragraph">Since the Navy's habitat is the ocean area of the world, sea water is an environmental factor which must be reckoned with and, if possible, used to advantage where lubrication of ship' s machinery is concerned. Three situations within the above concept are (<span class="xref">1</span>) protection from ...
W. V. SMITH, L. G. SCHNEIDER
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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 +3 more
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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 +3 more
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Seal Lubrication of an Automotive Water Pump
Tribology, 2006A noisy mechanical seal is a grave problem, especially in water pumps designed for the automotive industry. The noisiness is often caused by dynamic instability (stick-slip behavior), which occurs when the seal lubrication changes from hydrodynamic to mixed.
ANTONINI, Massimo +3 more
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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
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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
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Applied Mechanics and Materials, 2014
Water-lubricated bearings have attracted increasing attention in recent years because of their environmental sustainability, simplified design, low cost, good cooling performance and low coefficient of friction. To show the characteristic of water lubrication more clearly, this paper quantitatively compares the lubrication performances of water ...
Xiu Li Zhang +3 more
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Water-lubricated bearings have attracted increasing attention in recent years because of their environmental sustainability, simplified design, low cost, good cooling performance and low coefficient of friction. To show the characteristic of water lubrication more clearly, this paper quantitatively compares the lubrication performances of water ...
Xiu Li Zhang +3 more
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Water as a lubricant for graphite: A computer simulation study
The Journal of Chemical Physics, 2006The phase state and shear behavior of water confined between parallel graphite sheets are studied using the grand canonical Monte Carlo technique and TIP4P model for water. In describing the water-graphite interaction, two orientation-dependent potentials are tried.
Pertsin, A., Grunze, M.
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Water droplet lubrication for micromachines
Materials Science, 2007Water droplets placed on hydrophilic surface decrease the friction coefficient in the process of sliding over the hydrophobic surface. The droplets placed between these surfaces sustain loads of up to 170 mN and the friction coefficient for these surfaces is equal to 1.1 · 10−3.
K. Hiratsuka, A. Bohno, H. Mendo
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