Results 61 to 70 of about 83,687 (300)
Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma
Advanced Engineering Materials, EarlyView.The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie +4 more
wiley +1 more source
Oxygen vacancy mediated bismuth-based photocatalysts
Advanced Powder MaterialsSunlight-driven photocatalysis, which can produce clean fuels and mitigate environmental pollution, has received extensive research attention due to its potential for addressing both energy shortages and environmental crises.
Jiaqi Tian +5 more
doaj +1 more source
Atomic and electronic structure of YFeO3 surface with oxygen vacancies
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022 The atomic and electronic structure of YFeO3 surfaces at the formation of oxygen vacancies are investigated by the methods of quantum-mechanical calculations. The (100), (001), and (010) surfaces are considered.
Gnidenko Anton, Chigrin Pavel
doaj +1 more source
An ab initio study of intrinsic defects in zirconolite
, 2011 Zirconolite, CaZrTi2O7, is a proposed ceramic for the use in disposal of highly active nuclear waste. Density functional theory (DFT) has been used, in conjunction with a random search technique, to identify the stable interstitial sites for the ...
Duffy, Dorothy M. +2 more
core +1 more source
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
Lattice effects on the formation of oxygen vacancies in perovskite thin films
, 2016 We use first-principles methods to investigate the effects of collective lattice excitations on the formation of oxygen vacancies in perovskite thin films.
Cazorla, Claudio
core +1 more source
Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann +3 more
wiley +1 more source
Science and Technology of Advanced Materials: Methods, 2021 The slow kinetics of the oxygen exchange reaction at the surface of air electrodes for solid oxide fuel cells must be improved to reduce their operating temperature.
Masanobu Nakayama +6 more
doaj +1 more source
, 2010 The conversion of neutral nitrogen-vacancy centers to negatively charged nitrogen-vacancy centers is demonstrated for centers created by ion implantation and annealing in high-purity diamond.
Barclay, P. E. +3 more
core +1 more source
Healing of oxygen vacancies on reduced surfaces of gold-doped ceria [PDF]
, 2017 As an oxidation-reduction catalyst, ceria can catalyze molecular oxidation and reduction. There has been a focus on understanding and enhancing the vacancy formation process to improve the oxidative power of ceria.
Nolan, Michael
core +1 more source