Results 91 to 100 of about 2,264,111 (240)

A tribological studies of graphite solid lubrication effect on UHMW polyethylene in silicone oil lubricated conditions

MATEC Web of Conferences, 2017
Recent advances in surface engineering and solid lubrication technologies offer unique possibilities for better controlling friction and wear under boundary or marginally lubricated rolling, sliding or rotating contact conditions.
Jabłoński Piotr, Patalas Adam, Czajka Piotr   +2 more
doaj   +1 more source

Boundary mode lubrication of articular cartilage with a biomimetic diblock copolymer

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance Lubricin is a glycoprotein that protects cartilage in weight-bearing joints under boundary mode conditions, which defines the conditions under which physical cartilage damage takes place. The natural expression of lubricin decreases with age,
Zhexun Sun, E. Feeney, Ya Guan, Sierra G Cook, D. Gourdon, L. Bonassar, D. Putnam   +6 more
semanticscholar   +1 more source

Breakdown Processes of Boundary Films Formed by Oiliness Additives

Tribology Online, 2011
Breakdown processes of boundary films formed by lubricating oils containing oiliness additives were studied in a steel-mercury interface under quasi-static loading.
Ken Nakano, Kazuyoshi Manabe
doaj   +1 more source

Hydrodynamic lift on bound vesicles

, 1999
Bound vesicles subject to lateral forces such as arising from shear flow are investigated theoretically by combining a lubrication analysis of the bound part with a scaling approach to the global motion.
D. A. Hammer, E. Evans, I. Cantat, I. Durand, J. O. Rädler, M. Kraus, P. Olla, R. Bruinsma, R. Lipowsky, R. Lipowsky, R. M. Servuss, U. Seifert, U. Seifert, Udo Seifert   +13 more
core   +1 more source

Molecular behaviors in thin film lubrication—Part two: Direct observation of the molecular orientation near the solid surface

Friction, 2019
Over the past twenty years, thin film lubrication (TFL) theory has been used to characterize the molecular behaviors in lubrication films thinner than 100 nm, effectively bridging the gap between elastohydrodynamic lubrication and boundary lubrication ...
Ming Gao, Haoyu Li, Liran Ma, Yuan Gao, Linwei Ma, Jianbin Luo   +5 more
doaj   +1 more source

Low Friction of Graphene Oxide Aggregates in Lubricant Oil between a Steel Ball and Glass Disk under Boundary Lubrication. [PDF]

ACS Omega, 2022
Kinoshita H, Okamoto T, Hirai Y, Sugano K, Naohiro M.   +4 more
europepmc   +1 more source

Tribological performance and lubrication mechanism of polyacrylamide as a high-efficiency water-based lubricant additive for titanium alloys

Scientific Reports
Titanium alloys present challenges in terms of lubrication due to their difficult-to-machine nature, which necessitates the development of sustainable and environmentally friendly lubricants.
Jinzhu Tang, Shuqing Chen, Wenhui Cao, Hongmei Xie, Xin Quan, Qi Ding   +5 more
doaj   +1 more source

Analysis of Chaotic Features in Dry Gas Seal Friction State Using Acoustic Emission

Lubricants
In this study, a chaos theory-based characterization method is proposed to address the nonlinear behavior of acoustic emission (AE) signals during the startup and shutdown phases of dry gas seals. AE signals were collected through a controlled experiment
Shuai Zhang, Xuexing Ding, Jinlin Chen, Shipeng Wang, Lanxia Zhang   +4 more
doaj   +1 more source

Nucleation of Frank Dislocation during the Squeeze-Out Process in Boundary Lubrication: A Molecular Dynamics Study. [PDF]

Materials (Basel), 2022
Xu RG, Xiang Y, Zhang G, Rao Q, Leng Y.
europepmc   +1 more source

Lubrication model of a knee prosthesis, with non newtonian fluid and porous rough material [PDF]

, 2009
Tibial component of knee prostheses, made of ultra high molecular weight polyethylene (UHMWPE), experiences a high degree of wear and may be expected to last twelve years on average.
Berli, Marcelo Eduardo, Campana, Diego Martin, Di Paolo, José, Ubal, Sebastian   +3 more
core