Results 1 to 10 of about 13,228 (118)

The Running-in of Lubricated Metal-Metal Contacts—A Review on Ultra-Low Wear Systems

open access: yesLubricants, 2018
The running-in of lubricated metal–metal contacts leading to ultra-low wear is inseparably connected with the formation of the third body and vice versa. Adequate tribological stressing provides the system with a power density that leads to complex
Matthias Scherge
doaj   +3 more sources

Nitrogen-Doped Graphene Sheets as Efficient Nanofillers at Ultra-Low Content for Reinforcing Mechanical and Wear-Resistant Properties of Acrylic Polyurethane Coatings

open access: yesCrystals, 2022
The enhancement of the mechanical and wear-resistant properties of polymer coatings plays a vital role for their application in hostile serving environments, and nanofiller is effective for this purpose.
Hui Xu   +4 more
doaj   +1 more source

Reducing the Wear of the UHMWPE Used in the Total Hip ‎Replacement after Low-Pressure Plasma Treatment [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2022
This paper discusses the problem of evaluating the microhardness gradient effect on surface wear of an ultra-high molecular weight polyethylene (UHMWPE) films treated with low-pressure plasma.
Vladimir Pakhaliuk   +3 more
doaj   +1 more source

Overcoming friction and steps towards superlubricity: A review of underlying mechanisms

open access: yesApplied Surface Science Advances, 2021
Herein, we present a topical review of the advances and the mechanisms involved in achieving superlubricity - the regime of friction in which the coefficient of friction (COF) is less than 0.01. In light of the race towards achieving superlubricity on an
Himanshu Shekhar, Ravikumar Dumpala
doaj   +1 more source

Effects of Multi-Axial Compression on the Mechanical and Fretting Wear Properties of Ti-45Nb Alloys

open access: yesMetals, 2021
Biocompatible β-type Ti-45Nb alloy with a low elastic modulus is promising in alleviating the stress shielding effect of Ti-based hard-tissue replacement implants. In this work, the ultra-fine-grained (UFG) microstructures with different grain sizes were
Zhuoqing Xu   +3 more
doaj   +1 more source

Evaluation of lubrication properties of hydrogel artificial cartilage materials for joint prosthesis

open access: yesBiosurface and Biotribology, 2016
Poly (vinyl alcohol) (PVA) hydrogel with high water content is the candidate material for artificial cartilage. PVA hydrogels prepared by freeze-thawing (FT) method (PVA-FT gel), cast-drying (CD) method (PVA-CD gel) and hybrid method of FT and CD (PVA ...
S. Yarimitsu   +3 more
doaj   +1 more source

Tribofilms Forming in Oil-Lubricated Contacts

open access: yesLubricants, 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.
Matthias Scherge   +2 more
doaj   +1 more source

TRIBOLOGICAL BEHAVIOR OF ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE NANOCOMPOSITES [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2021
Thermoplastic polyethylene (PE), such as ultra-high molecular weight polyethylene (UHMWPE), is commonly used in industrial applications as bearing materials.
M. Taha   +5 more
doaj   +1 more source

Multi-Phase Friction and Wear Reduction by Copper Nanopartices

open access: yesLubricants, 2016
Finely dispersed copper nanoparticles were added as an additive to fully-formulated engine oils. The copper additive was in colloidal form, with an inner core of Cu2+ atoms covered by surfactants to form stable reverse micelles that are completely ...
Matthias Scherge   +3 more
doaj   +1 more source

The Tribological Properties of Hydrogenated DLC Coating Lubrication with Additive Having Glycerol and Phosphonate Structure

open access: yesTribology Online, 2021
In general, several mechanical parts are subjected to friction and wear. To prevent wear and high friction coefficient under lubrication, additives can work to reduce friction force, to build up thin film on surfaces which is so-called tribofilm ...
Takumi Kani   +5 more
doaj   +1 more source

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