Results 71 to 80 of about 5,816 (263)

Molecular Interactions at Asperity Contacts Under Boundary Lubrication

Lubricants
Boundary lubrication plays a crucial role in determining the service performance and operational lifespan of mechanical components. However, continuum mechanics models and experimental studies are unable to elucidate the dynamic evolution of ...
Dong Sun, Liqin Wang, Deng Pan, Tingjian Wang, Le Gu, Chuanwei Zhang   +5 more
doaj   +1 more source

Thin film lubrication in the past 20 years

Friction, 2016
Thin film lubrication (TFL), a lubrication regime that fills the gap between boundary lubrication (BL) and elastohydrodynamic lubrication (EHL) regimes, was proposed 20 years ago.
Liran Ma, Jianbin Luo
doaj   +1 more source

Experimental Investigation of the Tribological Behaviors of Carbon Fiber Reinforced Polymer Composites under Boundary Lubrication. [PDF]

Polymers (Basel), 2022
Birleanu C, Pustan M, Pop G, Cioaza M, Popa F, Lazarescu L, Contiu G.   +6 more
europepmc   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

Advanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du, Ruokun He, Luqi Li, Hesheng Wang, Zhuo‐Chen Ma, Bing Han   +5 more
wiley   +1 more source

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

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

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

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +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

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