Results 51 to 60 of about 246 (166)
Riboflavin‐Catalyzed Photoinduced Atom Transfer Radical Polymerization
Macromolecular Chemistry and Physics, Volume 226, Issue 7, April 2025.PhotoATRP of methyl acrylate with riboflavin (RF) and CuBr2/Me6TREN as a dual catalytic system is successfully carried out under a green LED light. The process demonstrated high chain‐end fidelity, efficient oxygen tolerance, and controlled polymerization kinetics, driven primarily by reductive quenching of RF.
Halil Ibrahim Coskun +5 more
wiley +1 more source
Tribology Online, 2010 One of the main challenges that engine oil manufacturers are now facing is to reduce friction losses while at the same time increasing the durability of engine components.
Ardian Morina +2 more
doaj +1 more source
Friction, 2022 High-entropy alloys have made significant progress in high mechanical properties, wear resistance, and corrosion resistance properties. Excellent tribological properties, especially high-temperature lubrication, have become another sought performance. In
Xuesong Liu +3 more
doaj +1 more source
ChemCatChem, Volume 16, Issue 20, October 21, 2024.Efficiency of photo‐processes on semiconductor surfaces is typically measured under continuous irradiation of the catalyst; this can lead to determined limitations given by the substrate‐catalyst interaction. In this short review, we highlight the strengths and the weaknesses of several published studies on pollutants abatement and hydrogen production ...
Ettore Bianco +4 more
wiley +1 more source
Interplay between microstructural evolution and tribo-chemistry during dry sliding of metals
Friction, 2019 Understanding the microstructural and tribo-chemical processes during tribological loading is of utmost importance to further improve the tribological behavior of metals.
Philipp G. Grützmacher +5 more
doaj +1 more source
FrictionThe achievement of a superlubric state with vanishing friction and negligible wear has important applications in minimizing energy dissipation and prolonging the service life of moving mechanical systems.
Qiang Ma +5 more
doaj +1 more source
Stress-augmented thermal activation: Tribology feels the force
Friction, 2018 In stress-augmented thermal activation, the activation energy barrier that controls the rate of atomic and molecular processes is reduced by the application of stress, with the result that the rate of these processes increases exponentially with applied ...
Hugh Spikes
doaj +1 more source
Inovação para a sustentabilidade
Química Nova, 2013 The transition to sustainable standards of production and consumption within a scenario of decreased availability of natural resources, growing population and climate change is essential to meet current challenges facing mankind. A strategy to meet these
Fernando Galembeck
doaj +1 more source
An investigation of abrasive wear and corrosion behavior of surface repair of gray cast iron by SMAW
Journal of Materials Research and Technology, 2017 In this work, improving the abrasion–corrosion behavior of gray cast iron used in centrifugal pumps was studied. These pumps are usually made of gray cast iron (BS:1452Gr220) and are repaired by Shielded Metal Arc Welding (SMAW).
Alireza Sadeghi +3 more
doaj +1 more source
Tribology OnlineThis study investigates the MnPh surface treatment applied to improve the tribological properties of steel and rolling fatigue life of gears, focusing on the wear behavior and tribofilm formation during the initial sliding stage. The MnPh-coated layer is
Ayumu Nagahashi +6 more
doaj +1 more source