Results 11 to 20 of about 917,998 (348)

Recent Progress on Wear‐Resistant Materials: Designs, Properties, and Applications

open access: yesAdvancement of science, 2021
There has been tremendous interest in the development of different innovative wear‐resistant materials, which can help to reduce energy losses resulted from friction and wear by ≈40% over the next 10–15 years.
Wenzheng Zhai   +6 more
semanticscholar   +1 more source

Wear [PDF]

open access: yesHandbook of Contact Mechanics, 2019
The definition of wear may include loss of dimension from plastic deformation if it is originated at the interface between two sliding surfaces. However, plastic deformation such as yield stress is excluded from the wear definition if it doesn't ...
Valentin L. Popov   +2 more
openaire   +2 more sources

The effect of messaging and gender on intentions to wear a face covering to slow down COVID-19 transmission [PDF]

open access: yes, 2020
Now that various countries are or will soon be moving towards relaxing shelter-in-place rules, it is important that people use a face covering, to avoid an exponential resurgence of the spreading of the coronavirus disease (COVID-19).
V. Capraro, Hélène Barcelo
semanticscholar   +1 more source

Reactive wear protection through strong and deformable oxide nanocomposite surfaces

open access: yesNature Communications, 2021
Wear-related energy and material loss cost over 2500 Billion Euro per year. Traditional wisdom suggests that high-strength materials reveal low wear rates, yet, their plastic deformation mechanisms also influence their wear performance. High strength and
Chang Liu   +13 more
semanticscholar   +1 more source

The Effect of Bottom Profile Dimples on the Femoral Head on Wear in Metal-on-Metal Total Hip Arthroplasty

open access: yesJournal of Functional Biomaterials, 2021
Wear and wear-induced debris is a significant factor in causing failure in implants. Reducing contact pressure by using a textured surface between the femoral head and acetabular cup is crucial to improving the implant’s life.
J. Jamari   +6 more
semanticscholar   +1 more source

Wear and Tear of Tyres: A Stealthy Source of Microplastics in the Environment

open access: yesInternational Journal of Environmental Research and Public Health, 2017
Wear and tear from tyres significantly contributes to the flow of (micro-)plastics into the environment. This paper compiles the fragmented knowledge on tyre wear and tear characteristics, amounts of particles emitted, pathways in the environment, and ...
Pieter Jan Kole   +3 more
semanticscholar   +1 more source

A critical review on the chemical wear and wear suppression of diamond tools in diamond cutting of ferrous metals

open access: yesInternational Journal of Extreme Manufacturing, 2020
Diamond tools play a critical role in ultra-precision machining due to their excellent physical and mechanical material properties, such as that cutting edge can be sharpened to nanoscale accuracy. However, abrasive chemical reactions between diamond and
G. Jiang   +8 more
semanticscholar   +1 more source

Nano Serpentine Powders as Lubricant Additive: Tribological Behaviors and Self-Repairing Performance on Worn Surface

open access: yesNanomaterials, 2020
Natural serpentine powders are applicable as additives for various lubricating oils. However, no uniform theories explain their tribological performance, lubrication, and wear mechanism, especially their self-repairing mechanism. Herein, the influence of
Binbin Wang   +6 more
doaj   +1 more source

Wear Test Combining Simulated Occiusal Wear and Toothbrush Wear

open access: yesDental Materials Journal, 2003
A new wear testing system, which carries out toothbrush wear and simulated occlusal wear tests alternately, was developed. Differences in wear behavior among three modes of wears, combined wear, toothbrush wear and simulated occlusal wear, were investigated using polymethylmethacrylate (PMMA) and two commercial resin composites (Z100, APX). The area of
Kiyoshi Kakuta   +2 more
openaire   +4 more sources

Data Analysis to Study Sub-threshold Delays Incurred by Tyne and Wear Metro Trains

open access: yesUrban Rail Transit, 2020
The performance of Tyne and Wear Metro system in the UK is measured on a headway basis, and gaps in service that are 4 min or more in excess of scheduled gaps are investigated and the cause documented.
Daniel Screen   +4 more
doaj   +1 more source

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