Results 61 to 70 of about 386,126 (244)
Effect of Carbon Content and Microstructure on the Diffusion of Hydrogen in Low Carbon Steels
International Journal of Electrochemical Science, 2020 In this work, the electrochemical permeation technique proposed in the ASTM-G148-97 Ed 2011 standard was used to determine the maximum oxidation current density, imax; breakthrough time; tb, effective hydrogen diffusion coefficient, Deff; and surface ...
J.G. Arenas-Salcedo +3 more
doaj +1 more source
Diffusion of hydrogen in crystalline silicon
, 1999 The coefficient of diffusion of hydrogen in crystalline silicon is calculated using tight-binding molecular dynamics. Our results are in good quantitative agreement with an earlier study by Panzarini and Colombo [Phys. Rev. Lett.
A. J. Tavendale +16 more
core +1 more source
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies
Advanced Engineering Materials, EarlyView.Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo +3 more
wiley +1 more source
Materials & Design, 2018 A significant decrease in hydrogen absorption in the presence of grain boundary carbides compared to the carbide-free microstructure in the Ni-based HR6W alloy was measured by thermal desorption analysis (TDA).
Andrej Turk +5 more
doaj +1 more source
Submersed sensing electrode used in fuel-cell type hydrogen detector [PDF]
, 1971 Electrode has silicone rubber diffusion barrier with fixed permeation constant for hydrogen. Barrier controls flow of hydrogen to anode and Faraday relationship establishes upper limit for current through cell.
Niedrach, L. W. +2 more
core +1 more source
Tuning hydrogen adsorption on graphene by gate voltage
, 2018 In order to realize applications of hydrogen-adsorbed graphene, a main issue is how to control hydrogen adsorption/desorption at room temperature. In this study, we demonstrate the possibility to tune hydrogen adsorption on graphene by applying a gate ...
Calzolari, Arrigo +2 more
core +2 more sources
Bulletin of Materials Science, 1997 The room temperature diffusivity of hydrogen in a fully B2 ordered iron aluminide of composition Fe-35·8 Al was estimated from the experimental hydrogen depth profile to be 2·38×10−15m2/s. The mathematical procedure utilized for data analysis has been described. The estimated diffusivity is a lower bound value due to surface trapping effects.
P Banerjee, R Balasubramaniam
openaire +2 more sources
Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source
Metals, 2018 This work evaluates the permeation curve characteristics for four quenched and tempered generic, ternary alloys, each containing one specific carbide. The different carbides (W2C, Cr23C6, TiC, and V4C3, respectively) are induced by a quench and tempering
E. Van den Eeckhout +2 more
doaj +1 more source