Results 11 to 20 of about 11,578,760 (275)

Advanced operator splitting based semi-implicit spectral method to solve the binary and single component phase-field crystal model [PDF]

open access: yes, 2011
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.We present extensive testing in order to find the optimum balance among errors associated with time integration, spatial discretization, and splitting for a
Bansel, Gurvinder Singh
core   +7 more sources

Advanced operator-splitting-based semi-implicit spectral method to solve the binary phase-field crystal equations with variable coefficients [PDF]

open access: yes, 2009
We present an efficient method to solve numerically the equations of dissipative dynamics of the binary phase-field crystal model proposed by Elder et al. [Phys. Rev. B 75, 064107 (2007)] characterized by variable coefficients.
Granasy, L   +5 more
core   +7 more sources

Phase field study on crystal orientation effects in eutectoid phase transformation [PDF]

open access: yesChina Foundry, 2017
In this present work, a multi-phase field model was used to simulate the eutectoid transformation process, and on the basis of the nucleation model that was previously proposed by our research team, anisotropic and orientation relationship models were ...
Dong-qiao Zhang   +2 more
doaj   +1 more source

Phase-field-crystal study of solute trapping [PDF]

open access: yesPhysical Review E, 2013
In this study we have incorporated two time scales into the phase field crystal model of a binary alloy to explore different solute trapping properties as a function of crystal-melt interface velocity. With only diffusive dynamics, we demonstrate that the segregation coefficient, K as a function of velocity for a binary alloy is consistent with the ...
Humadi, Harith   +2 more
openaire   +3 more sources

Improved Polymer Crystal Phase Field Model and Numerical Simulation

open access: yesMathematics, 2022
The existing phase field model of polymer crystallization contains many parameters that lack actual physical meaning. Although the value of these parameters can be adjusted to obtain results consistent with the experiment, it cannot correspond to the ...
Binxin Yang, Zhifeng Wang, Zhijuan Meng
doaj   +1 more source

Crystal field splitting and spontaneous polarization in InP crystal phase quantum dots

open access: yesScientific Reports, 2022
Crystal phase quantum dots are formed by vertically stacking zinc-blende and wurtzite phases during nanowire growth. In this work, we show, using an atomistic many-body approach, that crystal field splitting in the wurtzite phase, as well as spontaneous ...
Martyna Patera, Michał Zieliński
doaj   +1 more source

Phase-field crystal model with a vapor phase [PDF]

open access: yesPhysical Review E, 2013
Phase-Field Crystal (PFC) models are able to resolve atomic length scale features of materials during temporal evolution over diffusive time scales. Traditional PFC models contain solid and liquid phases, however many important materials processing phenomena involve a vapor phase as well.
Schwalbach, Edwin J.   +3 more
openaire   +3 more sources

Phase-field-crystal models and mechanical equilibrium [PDF]

open access: yesPhysical Review E, 2014
Phase field crystal (PFC) models constitute a field theoretical approach to solidification, melting and related phenomena at atomic length and diffusive time scales. One of the advantages of these models is that they naturally contain elastic excitations associated with strain in crystalline bodies.
Heinonen, V.   +5 more
openaire   +5 more sources

Prediction of mechanical-hysteresis behavior and complex moduli using the phase field crystal method with modified pressure controlled dynamic equation

open access: yesMaterials Research Express, 2020
Damping materials have been used in numerous engineering applications. The important property that plays a key role in this type of material is a damping capacity which is related to mechanical-hysteresis behavior of viscoelasticity.
J Em-Udom, N Pisutha-Arnond
doaj   +1 more source

Phase field modelling of hopper crystal growth in alloys

open access: yesScientific Reports, 2023
Here we use phase field to model and simulate “hopper” crystals, so named because of their underlying cubic structure but with a hopper-like depression on each of the six faces.
P. C. Bollada   +2 more
doaj   +1 more source

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