Results 51 to 60 of about 581 (203)
Physicochemistry aspects on frictional interfaces
Friction, 2017 Friction exists wherever relative motion occurs and is the main source of energy consumption. Lubrication plays a significant role in improving fuel efficiency, reducing emissions, and prolonging the service life of machines. Surface interactions between
Meirong Cai +3 more
doaj +1 more source
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
Direct microscopic evidence of shear induced graphitization of ultrananocrystalline diamond films
Carbon Trends, 2021 The origin of ultralow friction and high wear resistance in ultrananocrystalline diamond (UNCD) films is still under active debate because of the perplexed tribochemistry at the sliding interface.
K. Ganesan +3 more
doaj +1 more source
Uncatalysed Production of Coumarin‐3‐carboxylic Acids: A Green Approach
Journal of Chemistry, Volume 2016, Issue 1, 2016., 2016 A green contribution in short reaction times with moderate yields to produce coumarin‐3‐carboxylic acids is offered. Five different modes to activate the reactions (microwave, near‐infrared, mechanical milling, and ultrasound) were compared with mantle heating in the presence or absence of ethanol, a green solvent.
Joel Martínez +7 more
wiley +1 more source
Tribochemistry of silicon and oxygen doped, hydrogenated Diamond-like Carbon in fully-formulated oil against low additive oil [PDF]
, 2015 Diamond-like Carbon (DLC) coatings are increasingly used to reduce wear and lower friction in many applications. Doped DLCs are being produced with the goal of further enhancing the friction and wear profile as well as increasing the coating reliability.
Morina, A +3 more
core +1 more source
Tribology Online, 2007 The friction and wear properties of gray cast iron (FC250) specimens sliding against AISI 52100 steel ball were evaluated under the lubrication of PAO (poly-alpha-olefin), PAO+ZnDTP (1.5 mass% ZnDTP) and PAO+PN (amine salt of alkoxyl phosphate, 1.5 mass%
Yanqiu Xia +4 more
doaj +1 more source
Conventional and unconventional materials used in the production of brake pads – review
Science and Engineering of Composite Materials, 2020 Brakes are one of the most important components of vehicle. The brake system must be reliable and display unchanging action throughout its use, as it guards the health and life of many people. Properly matched friction pair, a disc and brake pad (in disc
Borawski Andrzej
doaj +1 more source
Small Structures, Volume 6, Issue 10, October 2025.The functionalization with graphitic nanodiamonds enhances friction reduction in diamond‐like carbon‐based interfaces. It promotes the formation of a stable, highly graphitic transfer layer, maintaining the core–shell arrangement. This study extends recent advances in superlubricity, providing insights into lubrication mechanisms in humid environments ...
Andrea Mescola +7 more
wiley +1 more source
Superlubricity and tribochemistry of polyhydric alcohols [PDF]
Physical Review B, 2008 The anomalous low friction of diamondlike carbon coated surfaces lubricated by pure glycerol was observed at 80 °C. Steel surfaces were coated with an ultrahard 1 µm thick hydrogen-free tetrahedral coordinated carbon (ta-C) layer produced by physical vapor deposition.
Matta, C. +6 more
openaire +3 more sources
Computational tribochemistry: a review from classical and quantum mechanics studies
, 2021 Recent years have witnessed the acceleration of research on tribochemical reactions in the tribology area. Together with new experimental findings, atomic modeling has increasingly contributed to the understanding of mechanistic insights and ...
A Kiet Tieu (20256126) +5 more
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