Results 251 to 260 of about 5,086,936 (300)
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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 lubrication of PTFE composites
Industrial Lubrication and Tribology, 2015Purpose– The paper aims to present results on the friction and the wear of polytetrafluoroethylene (PTFE) and eight commercially available composites with PTFE matrix, for tests done on shoe/roller tribotester with water lubrication in open circuit. There are pointed out particular tribological processes within the superficial layers of the composites ...
Lorena Deleanu, Constantin Georgescu
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Role of water in the lubrication of hydrogel
Wear, 2006Abstract In previous reports, the frictional property of hydrogel was evaluated by using the pin-on-disk type of friction tester. As a result, the hydrogel showed the change in a friction coefficient depending on the speed. The friction property of hydrogel is similar to the Stribeck curve.
Yasunari Ishikawa +2 more
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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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Enhancement on Lubrication Performances of Water Lubricants by Multilayer Graphene
Tribology Letters, 2023Chenjie Li +5 more
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2012
In the chapter few examples of water-based lubricant systems of increasing complexity based on self-assembled surfactant layers are described. It is shown how the morphology of surfactant films, which is determined by the molecular structure of the surfactant, has important implications on the cohesion and lubricant properties are modified due to the ...
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In the chapter few examples of water-based lubricant systems of increasing complexity based on self-assembled surfactant layers are described. It is shown how the morphology of surfactant films, which is determined by the molecular structure of the surfactant, has important implications on the cohesion and lubricant properties are modified due to the ...
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Influence of Water on the Lubrication of Metals
Nature, 1947Earlier work1 has shown that the simple physical adsorption theory of boundary lubrication is inadequate; fatty acids are not really effective in lubricating metals unless they are able to react chemically with the surface to form the metallic soap. Gregory's measurements have shown, for example, that platinum is not effectively lubricated by a dilute ...
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