Results 11 to 20 of about 195,760 (256)

Diffusion of Muonium and Hydrogen in Diamond [PDF]

open access: yesPhysical Review Letters, 2007
Jump rates of muonium and hydrogen in diamond are calculated by quantum transition-state theory, based on the path-integral centroid formalism. This technique allows us to study the influence of vibrational mode quantization on the effective free-energy barriers Delta F for impurity diffusion, which are renormalized respect to the zero-temperature ...
Herrero, Carlos P., Ramirez, Rafael
openaire   +3 more sources

Tin, The Enabler-Hydrogen Diffusion into Ruthenium. [PDF]

open access: yesNanomaterials (Basel), 2019
Hydrogen interaction with ruthenium is of particular importance for the ruthenium-capped multilayer reflectors used in extreme ultraviolet (EUV) lithography. Hydrogen causes blistering, which leads to a loss of reflectivity. This problem is aggravated by tin.
Onwudinanti C   +3 more
europepmc   +6 more sources

The diffusion and thermal diffusion of hydrogen-deuterium, with a note on the thermal diffusion of hydrogen-helium [PDF]

open access: yesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1941
Abstract The diffusion coefficient D12 has been determined for hydrogen-deuterium and is found to be in close agreement with the value predicted by the classical theory. The case is one of particular interest because the diffusing molecules have the same size and the same molecular field.
H. R. Heath, T. L. Ibbs, N. E. Wild
openaire   +1 more source

Hydrogen Diffusion Mechanism around a Crack Tip in Type 304L Austenite Stainless Steel Considering the Influence of the Volume Expansion of Strain-Induced Martensite Transformation

open access: yesMetals, 2019
Strain-induced martensite transformation (SIMT) commonly exists around a crack tip of metastable austenite stainless steels. The influence of the volume expansion of the SIMT on the hydrogen diffusion was investigated by hydrogen diffusion modeling ...
Zhiliang Xiong   +4 more
doaj   +1 more source

Influence of the hydrogen skin effect on the nature of the fracture of steel specimens

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022
The influence of hydrogen saturation of steel specimens on the results of their standardized testing for resistance to hydrogen cracking has been carried out.
Sedova Yuliya   +2 more
doaj   +1 more source

Effect of Microstructure on Hydrogen Permeation in EA4T and 30CrNiMoV12 Railway Axle Steels

open access: yesMetals, 2019
A comparative study was conducted to reveal the effect of microstructure on hydrogen permeation in the EA4T and 30CrNiMoV12 railway axle steels. Unlike the EA4T with its sorbite structure, 30CrNiMoV12 steel shows a typical tempered martensitic structure,
Tingzhi Si   +4 more
doaj   +1 more source

Tensile Armor Wires Submitted to Slow Strain Rate Tests in a Corrosive Environment and Cathodic Protection: a Comparison Between Two Different Microstructures [PDF]

open access: yesMaterials Research, 2019
Tensile armor in flexible pipes consists of two or more layers of steel wires. Damage to the outer sheath may cause ingress of seawater in the annular space and thus corrosion of the armor wires.
Mariana dos Reis Tagliari   +6 more
doaj   +1 more source

Hydrogen Desorption from Mg Hydride: An Ab Initio Study

open access: yesCrystals, 2012
Hydrogen desorption from hydride matrix is still an open field of research. By means of accurate first-principle molecular dynamics (MD) simulations an Mg–MgH2 interface is selected, studied and characterized.
Simone Giusepponi, Massimo Celino
doaj   +1 more source

Influence of microstructure and crystallographic texture on hydrogen diffusion in IF-steel [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2023
The relation between microstructure, crystallographic texture, and hydrogen diffusion was studied on a IF-steel. The steel samples were deep drawn to a strain level of 10%, 20%, 30% and 40% and then the hydrogen diffusion coefficients were determined ...
Başkaya Ü.   +4 more
doaj   +1 more source

Proton Dynamics in Palladium–Silver: An Inelastic Neutron Scattering Investigation

open access: yesMolecules, 2020
Proton dynamics in Pd77Ag23 membranes is investigated by means of various neutron spectroscopic techniques, namely Quasi Elastic Neutron Scattering, Incoherent Inelastic Neutron Scattering, Neutron Transmission, and Deep Inelastic Neutron Scattering ...
Daniele Colognesi   +7 more
doaj   +1 more source

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