Results 21 to 30 of about 6,710,712 (351)

Gas-Phase Lubrication of ta-C by Glycerol and Hydrogen Peroxide. Experimental and Computer Modeling [PDF]

, 2010
Tetrahedrally coordinated hydrogen-free amorphous diamond-like carbon coating (denoted as ta-C) presents ultralow friction under boundary lubrication conditions at 80 °C in presence of OH-containing molecules.
De Barros Bouchet, Maria-Isabel, Goddard, William A., III, Martin, Jean-Michel, Matta, Christine, Okuda, Sachiko, Sagawa, Takumaru, Zhang, Qing   +6 more
core   +1 more source

The tribological properties of single-layer hybrid PTFE/Nomex fabric/phenolic resin composites underwater

Open Physics, 2021
In this study, the tribological properties of hybrid polytetrafluoroethylene (PTFE)/Nomex fabric/phenolic resin composites were investigated under three operating conditions: dry sliding, dry sliding after soaking in water for 12 h, and water dripping ...
Ying Liu, Gengyuan Gao, Dan Jiang, Zhongwei Yin   +3 more
doaj   +1 more source

Effect of Material Selection and Surface Texture on Tribological Properties of Key Friction Pairs in Water Hydraulic Axial Piston Pumps: A Review

Lubricants, 2023
A water hydraulic axial piston pump has become the preferred power component of environmentally friendly water hydraulic transmission systems, due to its advantages of a compact structure, high power density, and so on.
Yingna Liang, Wei Wang, Zhepeng Zhang, Hao Xing, Cunyuan Wang, Zongyi Zhang, Tianyuan Guan, Dianrong Gao   +7 more
doaj   +1 more source

Lubrication at physiological pressures by polyzwitterionic brushes [PDF]

, 2009
The very low sliding friction at natural synovial joints, which have friction coefficients of mu < 0.002 at pressures up to 5 megapascals or more, has to date not been attained in any human-made joints or between model surfaces in aqueous environments ...
Briscoe, Chen, Feng, Gong, Gourdon, Hills, Ishihara, J. Klein, Lee, Lis, M. Chen, Mcutchen, Moro, Nagle, Pabst, Park, Raviv, Raviv, S. P. Armes, Swann, Tadmor, W. H. Briscoe, Yaseen   +22 more
core   +1 more source

Synovial joint lubrication – does nature teach more effective engineering lubrication strategies? [PDF]

, 2007
Nature shows numerous examples of systems which show energy efficiency, elegance in their design and optimum use of materials. Biomimetics is an emerging field of research in engineering and successes have been documented in the diverse fields of ...
Liskiewicz, T., Morina, A., Neville, A., Yan, Y.   +3 more
core   +1 more source

Similarities and differences of pumping conventional and self-compacting concrete [PDF]

, 2010
In Practice, Self-Compacting Concrete (SCC) is Considered as a Simple Extension of Conventional Vibrated Concrete (CVC) When Pumping is Concerned. the Same Equipment, Materials, Pumping Procedures and Guidelines Used for CVC Are Applied When Pumping SCC.
AN Ede, D Feys, D Kaplan, F Chapdelaine, G De Schutter, GH Tattersall, H Beitzel, JE Wallevik, M Ouchi, NR Guptill, OH Wallevik, RA Crepas, RD Browne   +12 more
core   +2 more sources

Take-off of small Leidenfrost droplets [PDF]

, 2012
We put in evidence the unexpected behaviour of Leidenfrost droplets at the later stage of their evaporation. We predict and observe that, below a critical size $R_l$, the droplets spontaneously take-off due to the breakdown of the lubrication regime.
Celestini, Franck, Frisch, Thomas, Pomeau, Yves   +2 more
core   +5 more sources

Wear Behaviors of Stainless Steel and Lubrication Effect on Transitions in Lubrication Regimes in Sliding Contact

Metals, 2021
The wear behavior of AISI304 stainless steel was investigated under dry, water-, and oil-lubricated conditions. A block-on-disk wear test was conducted in this work, since the test conditions could be controlled easily.
Yoon-Seok Lee, Shunnosuke Yamagishi, Masataka Tsuro, Changwook Ji, Seungchan Cho, Yangdo Kim, Moonhee Choi   +6 more
doaj   +1 more source

Monitoring of lubricant film failure in a ball bearing using ultrasound [PDF]

, 2006
A lubricant-film monitoring system for a conventional deep groove ball bearing (type 6016, shaft diameter 80 mm, ball diameter 12.7 mm) is described. A high-firequency (50 MHz) ultrasonic transducer is mounted on the static outer raceway of the bearing ...
Anderson, Astridge, Bruce W. Drinkwater, Cameron, Drinkwater, Dwyer-Joyce, Dyson, Glavatskih, Hamrock, Hamrock, Harris, Hill, Jacobson, Jie Zhang, Krautkramer, Miettinen, Miettinen, Pialucha, Rob S. Dwyer-Joyce, Stachowiak, Zhang, Zhang   +21 more
core   +1 more source

Study on the Effect of Water Pollution in Lubricant on Gear Thermal Elastohydrodynamic Lubrication Characteristic

Jixie chuandong, 2021
Taking the involute spur gear as the research object and considering the thermal effect and time-varying effect，the oil-water two-phase flow model and the thermal elastohydrodynamic lubrication model of the gear system are established，the influence of ...
Yan Chen, Xian Zhang, Guosheng Li
doaj