Results 41 to 50 of about 3,770,661 (245)

Injection molding of bushes made of tribological PEEK composites

eXPRESS Polymer Letters, 2007
Polyetheretherketone (PEEK) composites have been extensively studied because of the excellent tribological behavior among plastics. However, laboratory specimens and tests are generally discussed, whereas application studies on industrial components are ...
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 Infill Density on the Degradation and Tribological Performance of FDM-Printed PLA for Biomedical Applications

Lubricants
This study investigates the influence of physiological body fluids on the mass stability and tribological performance of polylactic acid (PLA) samples produced by Fused Deposition Modeling (FDM) 3D printing.
Nebojša Zdravković, Živana Jovanovic Pešić, Dalibor Nikolić, Dragan S. Džunić   +3 more
doaj   +1 more source

State of the art on tribological behavior of polymer matrix composites reinforced with natural fibers in the green materials world

Engineering Science and Technology, an International Journal, 2016
Natural fiber reinforced polymer composites have emerged as a potential environmentally friendly and cost-effective alternative to synthetic fiber reinforced composites. Therefore, in the past decade, a number of major industries, such as the automotive,
Emad Omrani, Pradeep L. Menezes, Pradeep K. Rohatgi   +2 more
doaj   +1 more source

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 behavior of short-cut aramid fiber reinforced SBR elastomers: the effect of fiber orientation

Journal of Mechanical Engineering and Sciences, 2018
Elastomeric materials are widely used in daily applications, such as conveyor belts and wiper. Generally, elastomeric materials show poor tribological behavior. Adding fibers to an elastomer is a way to solve this problem.
M. Khafidh, D.J. Schipper, M.A. Masen, V. Vleugels, J.W.M. Noordermeer   +4 more
doaj   +1 more source

Rheological Behavior of Different Calf Sera before, during and after Biomechanical Testing

Lubricants, 2022
Due to different rheological behavior of human synovial fluid and the test mediums for in vitro examinations, wear tests cannot replicate the in vivo situation completely.
Maximilian Uhler, Mareike Schonhoff, Timo A. Nees, Tanja Wonerow, Jens Nuppnau, Frank Mantwill, Jan Philippe Kretzer, Stefan Schroeder   +7 more
doaj   +1 more source

Studies of mechanochemical interactions in the tribological behavior of materials [PDF]

Surface and Coatings Technology, 1990
Mechanochemical interaction studies can contribute to the understanding of wear and friction of materials. Specific examples of experimental results relative to the subject are discussed. There are two parts: one describes the synergistic effect of corrosion and wear of iron sliding on sapphire in sulfuric acid, and the other describes the effect of ...
openaire   +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

Shear‐Isolating Actuation System for Exosuit Using Movable Pulley With Webbing‐Driven Mechanism

Advanced Robotics Research, EarlyView.
Tendon‐driven exosuits can chafe the skin because the moving tendon slides against the wearer. A shear‐isolating actuation system combining a movable pulley with flat‐profile webbing keeps the body‐contacting tendon layer stationary, relocating relative motion away from the skin. The compact 145‐g actuator delivers 150 N of assistance, and benchtop and
Kyeongmin Lim, Gijoon Song, Jaewook Ryu, Sangeui Lee, Junyoung Moon, Giuk Lee   +5 more
wiley   +1 more source