Results 21 to 30 of about 2,835 (199)
Friction, 2023 Carbon fiber reinforced polytetrafluoroethylene (CF/PTFE) composites are known for their exceptional tribological performance when sliding against steel or cast iron in inert gas environments.
P. Johansson +3 more
doaj +1 more source
Bridged h-BN Nanosheets Coatings: Simultaneous Shielding Atomic-Oxygen Irradiation and Achieving Superior Friction Performance. [PDF]
Adv Sci (Weinh)ABSTRACT To confront extreme space environments, a combination of inorganic and organic coatings can provide a pathway for offering highly durable radiation resistance and anti‐friction simultaneously. Herein, a strong interfacial 3D hydrogen‐bonding network is designed to create robust hexagonal boron nitride (h‐BN) based polymer coatings with ...
Li Z +7 more
europepmc +2 more sources
Influence of roughness on ZDDP tribofilm formation in boundary lubricated fretting [PDF]
, 2012 Influence of initial surface topography on tribofilm formation in ZDDP lubricated contact was analysed. A small displacement fretting tests with sinusoidal motion were carried out in classical sphere/plane configuration.
Bigerelle, M. +8 more
core +1 more source
Tribofilms Forming in Oil-Lubricated Contacts [PDF]
Lubricants, 2016 The subject of the present paper is the characterization of third bodies of run-in systems. By means of continuous friction and wear measurement, lubricated steel-steel and steel-aluminum contacts were evaluated. Microstructure, chemical composition and response of the materials to shear were analyzed by XPS/AES and focused ion beam technique.
Scherge, Matthias +2 more
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Self-healing WS2 tribofilms: An in-situ appraisal of mechanisms [PDF]
Scripta Materialia, 2021 Self-healing tribocoatings are being developed for aerospace applications to improve the lifetime and reduce the surface maintenance of components in motion. Here the tribo-induced self-healing behaviour of a WS2/a-C tribocoating has been evaluated for the first time by in-situ scanning electron microscopy (SEM) to evaluate the mechanisms of damage and
Huatang Cao +6 more
openaire +3 more sources
Scuffing failure analysis based on a multiphysics coupling model and experimental verification
Friction, 2023 General reductions in lubricant viscosities and increasing loads in machine components highlight the role of tribofilms in providing surface protection against scuffing. However, the relationship between the scuffing process and the growth and removal of
Bugao Lyu +4 more
doaj +1 more source
Friction, 2023 Lubricated contact processes are studied using classical molecular dynamics simulations for determining the entire range of the Stribeck curve. Therefore, the lateral movement of two solid bodies at different gap height are studied. In each simulation, a
Simon Stephan +3 more
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Tribology Online, 2018 Tribofilms are critical for the management of wear and the control of friction. This study focused on the tribological properties of tribofilms to clarify their antiwear and low-friction mechanisms.
Renguo Lu +4 more
doaj +1 more source
Characterization of ZDDP and ionic liquid tribofilms on non-metallic coatings providing insights of tribofilm formation mechanisms [PDF]
Wear, 2015 Abstract Lubricant anti-wear additives are known to chemically interact with metallic surfaces to form a self-healing, wear-protection tribofilm. Their interactions with non-metallic surfaces are however less understood. Here we report recent findings on whether and how a zinc dialkyldithiophosphate (ZDDP) and a phosphonium–organophosphate ionic ...
Qu, Jun +4 more
openaire +1 more source
Tribology Online, 2019 To improve the transmission efficiency of a continuously variable transmission (CVT) system, it is effective to form a tribofilm with higher friction coefficient.
Ayako Omura +8 more
doaj +1 more source