Doubly degenerate diffuse interface models of anisotropic surface diffusion
Sign Up to like & getrecommendations! Published in 2020 at "Mathematical Methods in the Applied Sciences"
DOI: 10.1002/mma.7118
Abstract: We extend the doubly degenerate Cahn–Hilliard (DDCH) models for isotropic surface diffusion, which yield more accurate approximations than classical degenerate Cahn–Hilliard (DCH) models, to the anisotropic case. We consider both weak and strong anisotropies and… read more here.
Keywords: degenerate diffuse; diffusion; anisotropic surface; surface diffusion ... See more keywords
A study of surface diffusion of ternary (Cu‐Ag‐Zr) adatoms clusters for applications in thin film formation
Sign Up to like & getrecommendations! Published in 2019 at "Surface and Interface Analysis"
DOI: 10.1002/sia.6608
Abstract: This study presents the diffusion of heterogeneous ternary (Cu‐Ag‐Zr) adatoms clusters on Ag(111) using molecular dynamics techniques which could be important for the surface phenomena's and helpful for the ternary cluster's growth and formation of… read more here.
Keywords: ternary adatoms; study; diffusion; surface ... See more keywords
The Surface Diffusion Flow with Elasticity in the Plane
Sign Up to like & getrecommendations! Published in 2018 at "Communications in Mathematical Physics"
DOI: 10.1007/s00220-018-3200-2
Abstract: In this paper we prove short-time existence of a smooth solution in the plane to the surface diffusion equation with an elastic term and without an additional curvature regularization. We also prove the asymptotic stability… read more here.
Keywords: plane surface; flow elasticity; surface diffusion; diffusion flow ... See more keywords
Adsorption and Surface Diffusion of Metals on α-Al2O3 for Advanced Manufacturing Applications
Sign Up to like & getrecommendations! Published in 2021 at "JOM"
DOI: 10.1007/s11837-021-04589-y
Abstract: The adsorption and diffusion of Mo and Nb adatoms on the $$\alpha$$ -Al2O3 (0001) surface were explored using density functional theory-based methods. Adsorption energies of Mo and Nb adatoms at minima sites on the surface… read more here.
Keywords: surface diffusion; advanced manufacturing; surface; adsorption ... See more keywords
Lack of support for surface diffusion of postsynaptic AMPARs in tuning synaptic transmission; a modeling study.
Sign Up to like & getrecommendations! Published in 2021 at "Biophysical journal"
DOI: 10.1016/j.bpj.2021.06.026
Abstract: Repetitive stimulation of excitatory synapses triggers molecular events required for signal transfer across neuronal synapses. It has been hypothesized that one of these molecular events, the diffusion of extrasynaptic AMPARs (i.e. the diffusion hypothesis), is… read more here.
Keywords: diffusion postsynaptic; support surface; lack support; diffusion ... See more keywords
Novel biochar and hydrochar for the adsorption of 2-nitrophenol from aqueous solutions: An approach using the PVSDM model.
Sign Up to like & getrecommendations! Published in 2020 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2020.128748
Abstract: Two new adsorbents, namely avocado-based hydrochar and LDH/bone-based biochar, were developed, characterized, and applied for adsorbing 2-nitrophenol. The pore volume and surface diffusion model (PVSDM) was numerically solved for different geometries and applied to interpret… read more here.
Keywords: adsorption; biochar; model; hydrochar adsorption ... See more keywords
Development of a DEM taking account of neck increments caused by surface diffusion for sintering and application to analysis of the initial stage of sintering
Sign Up to like & getrecommendations! Published in 2021 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2021.110525
Abstract: Abstract A discrete element model (DEM) capable of handling changing temperatures was newly developed for simulating sintering phenomena. The neck growth rate caused by surface diffusion was determined using a finite-difference model (FDM). The developed… read more here.
Keywords: surface diffusion; caused surface; diffusion; dem ... See more keywords
Novel surface diffusion characteristics for a robust pentacene derivative on Au(1 1 1) surfaces
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2017.04.018
Abstract: Abstract Molecular dynamics simulations have been performed in both the ab initio and classical mechanics frameworks of 5,6,7-trithiapentacene-13-one (TTPO) molecules on flat Au(1 1 1) surfaces. Results show new surface diffusion characteristics including a strong preference for… read more here.
Keywords: diffusion; novel surface; diffusion characteristics; surface diffusion ... See more keywords
Evaluation of surface diffusion in microporous/mesoporous media using a numerical model applied to rate-of-adsorption data: Implications for improved gas permeability estimation in shales/tight rocks using drill cuttings
Sign Up to like & getrecommendations! Published in 2021 at "Fuel"
DOI: 10.1016/j.fuel.2020.118974
Abstract: Abstract Adsorbed-phase surface diffusion has been recognized as an important controlling factor on gas apparent permeability in micropores and smaller mesopores. However, for the estimation of surface diffusion coefficients of shales, the commonly used empirical… read more here.
Keywords: surface; gas; permeability; surface diffusion ... See more keywords
Experimental study of zeolitic diffusion by use of a concentration-dependent surface diffusion model
Sign Up to like & getrecommendations! Published in 2019 at "Heliyon"
DOI: 10.1016/j.heliyon.2019.e02143
Abstract: Surface diffusivity in adsorption and ion exchange processes is probably the most important property studied expensively in the literature but some aspects, especially its dependence on solid phase concentration, is still an open subject to… read more here.
Keywords: diffusion; surface; concentration; surface diffusion ... See more keywords
Surface diffusion controlled reaction in small size microbumps
Sign Up to like & getrecommendations! Published in 2021 at "Materials Letters"
DOI: 10.1016/j.matlet.2020.129036
Abstract: Abstract We made head-shaped Cu-Sn solder joints with diameters about 10 μm, 20 μm, and 50 μm and reflowed the samples at 240 oC, 260 oC, and 280 oC for 60 s to 600 s.… read more here.
Keywords: controlled reaction; diffusion; diffusion controlled; small size ... See more keywords