Results 21 to 30 of about 1,097,644 (286)

The Effect of Steel Electropolishing on the Tribological Behavior of a Steel–Bronze Pair in the Mixed and Boundary Lubrication Regimes

Lubricants, 2023
Electropolishing at high current densities without agitation of the electrolyte results in a pitting phenomenon that produces dimple-like surface features.
Robert Mašović, Daniel Miler, Ivan Čular, Suzana Jakovljević, Mario Šercer, Dragan Žeželj   +5 more
doaj   +1 more source

Identification of lubrication Regimes in Mechanical Seals using Acoustic Emission for Condition Monitoring [PDF]

The quality of lubrication condition between seal faces directly affects the reliability, operating life and sealing performance of mechanical seals. Thus, the identification of lubrication regimes in face seals i.e.
Gu, Fengshou, Ball, Andrew, Towsyfyan, Hossein, Wei, Nasha   +3 more
core   +3 more sources

Transitional behaviour between biphasic lubrication and soft elastohydrodynamic lubrication of poly(vinyl alcohol) hydrogel using microelectromechanical system pressure sensor

Biosurface and Biotribology, 2018
The soft hydrogel material is expected for a candidate material as biomimetic artificial cartilage with synergistic functionalities of adaptive multimode lubrication.
Nobuo Sakai, Seido Yarimitsu, Yoshinori Sawae, Mochimitsu Komori, Teruo Murakami   +4 more
doaj   +1 more source

Boundary lubrication with a glassy interface [PDF]

Physical Review E, 2004
Recently introduced constitutive equations for the rheology of dense, disordered materials are investigated in the context of stick-slip experiments in boundary lubrication. The model is based on a generalization of the shear transformation zone (STZ) theory, in which plastic deformation is represented by a population of mesoscopic regions which may ...
Lemaître, Anaël, Carlson, Jean
openaire   +3 more sources

Tribology of enzymatically degraded cartilage mimicking early osteoarthritis

Friction, 2023
Healthy cartilage is a water-filled super lubricious tissue. Collagen type II provides it structural stability, and proteoglycans absorb water to keep the cartilage in a swollen condition, providing it the ability to creep and provide weeping lubrication.
Ke Ren, Miguel Alejandro Reina Mahecha, Maike Hübner, Zhiwei Cui, Hans J. Kaper, Hugo C. van der Veen, Prashant K. Sharma   +6 more
doaj   +1 more source

Lubrication properties of graphene under harsh working conditions

Materials Today Advances, 2023
Graphene materials considered to be promising candidates for next-generation lubricants has been explored and summarized extensively, owing to their atomic-level lamellar structure and extremely low interlayer shear van der Waals barrier.
Bao Jin, Guangyan Chen, Yongyong He, Chenhui Zhang, Jianbin Luo   +4 more
doaj   +1 more source

Boundary lubrication:  Dynamics of squeeze-out [PDF]

Physical Review E, 2001
The dynamics of the expulsion of the last liquid monolayer of molecules confined between two surfaces (measured recently for the first time) has been analyzed by solving the two-dimensional Navier-Stokes equation combined with kinetic Monte Carlo simulations. Instabilities in the boundary line of the expelled film were observed.
Zilberman, S., Persson, B. N. J., Nitzan, A., Mugele, F., Salmeron, M.   +4 more
openaire   +4 more sources

Trimethylolpropane trioleate as eco-friendly lubricant additive

Engineering Science and Technology, an International Journal, 2022
Approximately 17.9% of fuel energy is used to overcome engine friction in passenger cars with engine frictional losses further broken down into losses along hydrodynamic (40%), elastohydrodynamic – due to pure sliding motion (40%), mixed (10%) and ...
Chiew Tin Lee, Mei Bao Lee, Siti Hartini Hamdan, William Woei Fong Chong, Cheng Tung Chong, Hedong Zhang, Allan Woei Loon Chen   +6 more
doaj   +1 more source

Boundary Lubrication Characteristic of Metal-Containing Diamond-Like Carbon (DLC) Films with Poly Alpha Olefin (PAO) Lubricant

Tribology Online, 2008
The effects of metals such as cobalt (Co), cerium (Ce), magnesium (Mg), nickel (Ni) and titanium (Ti) added to diamond-like carbon (DLC) films on boundary lubrication properties were investigated using a ball-on disk tribometer.
Shojiro Miyake, Mitsuyoshi Komiya, Wataru Kurosaka, Yasuaki Matsumoto, Yuta Saito, Yoshiteru Yasuda, Yusuke Okamoto   +6 more
doaj   +1 more source

Experimental and numerical study of the mixed lubrication under the action of magnetic ionic liquid additives

Scientific Reports
In this paper, the tribological characteristics of an oil-soluble magnetic fluid additive under mixed lubrication are studied by experiments and numerical simulation.
Ze Liu, Zhijun Yan, Shibo Wu, Haocheng Sun, Shengwei Zhang   +4 more
doaj   +1 more source