Results 31 to 40 of about 5,949,782 (256)

Recent Studies on Nanomaterials as Additives to Lubricants Under Electrified Conditions for Tribology: Review

Lubricants
The tribological performance of nanolubricants in electric drivetrains has gained attention due to the rapid growth of electric vehicles. Nanomaterials, especially those with high thermal conductivity and low electrical conductivity, are favored as ...
Khodor Nasser, María J. G. Guimarey, Neuma das Mercês Pereira   +2 more
doaj   +1 more source

The Influence of Inner Component and Topographical Properties on Tribological Parameters of Injection-Moulded Microparts

Advances in Mechanical Engineering, 2014
Tribological parameters are dependent upon inter alia, inner component properties which may vary with the temperature-time behaviour of the polymer melt used. This temperature-time behaviour can be influenced by dynamic mould temperature control.
Christopher Fischer, Dietmar Drummer
doaj   +1 more source

Synergistic Effects of Functionalized WS₂ and SiO₂ Nanoparticles and a Phosphonium Ionic Liquid as Hybrid Additives of Low-Viscosity Lubricants

Lubricants
This research shows the antifriction and antiwear synergies between a phosphonium ionic liquid (IL) and f-WS2 and f-SiO2 nanoparticles (NPs) as additives of a base oil with low viscosity (PAO6). Mass concentrations of 0.1 wt% nanoadditives and 1% IL were
José M. Liñeira del Río, Carlos M. C. G. Fernandes, David E. P. Gonçalves, Jorge H. O. Seabra   +3 more
doaj   +1 more source

Study on the Tribological Properties of Graphene Oxide Modified Carbon Fiber Reinforced Phosphate Coatings [PDF]

Cailiao Baohu
In order to improve the tribological properties of phosphate-bonded coatings，the feasibility of modified carbon fibers in coatings was explored.In this work，graphene oxide (GO) was grafted to carbon fibers (CF) by electrophoretic deposition，and the ...
SI Shuai, LI Jiahong, BIAN Da, ZHAO Yongwu, QIAN Shanhua
doaj   +1 more source

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Influence of Polymer Flow on Polypropylene Morphology, Micro-Mechanical, and Tribological Properties of Injected Part

Lubricants
This research investigates the micro-mechanical and tribological properties of injection-molded parts made from polypropylene. The tribological properties of polymers are a very interesting area of research.
Martin Ovsik, Klara Fucikova, Lukas Manas, Michal Stanek   +3 more
doaj   +1 more source

Tribological Properties of Nitrate Graphite Foils. [PDF]

Nanomaterials (Basel)
This study investigates the tribological properties of graphite foils (GF) with densities of 1.0, 1.3, and 1.6 g/cm3, produced from purified natural graphite of different particle sizes (40–80 μm, 160–200 μm, >500 μm). Surface roughness was measured after cold rolling and friction testing at static (0.001 mm/s) and dynamic conditions (0.1 Hz and 1 ...
Morozov NS, Demchenko DV, Bukovsky PO, Yakovenko AA, Shulyak VA, Gracheva AV, Chebotarev SN, Goryacheva IG, Avdeev VV.   +8 more
europepmc   +4 more sources

Beyond Thin Film Limits—Superhard and Hydrogen‐Free Amorphous Carbon Coatings With Over 100 µm Thickness

Advanced Functional Materials, EarlyView.
For the first time, an extreme‐thick laser‐arc PVD ta‐C (DLC) coating exceeding 100 µm is demonstrated, opening up new possibilities for ultra‐high load bearing capacity. This superhard amorphous carbon architecture combines >50% sp3 bonding, robust adhesion and self‐supporting performance, shielding substrates from plastic flow under extreme contact ...
Martin Zawischa, Frank Kaulfuß, Stefan Makowski, Volker Weihnacht   +3 more
wiley   +1 more source

Tribological Properties of TiNi/MoS2 Functional Coatings

, 2021
In this study, MoS2 solid lubricant films were supported with crystalline TiNi films for the first time in the literature to produce functional solid lubricant coatings.
EFEOĞLU, İhsan, Akar, Ozan Can, Cicek, Hikmet   +2 more
core   +1 more source

Fiber‐Format Flexible Linear Electrostatic Motors

Advanced Materials, EarlyView.
A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley   +1 more source