Results 11 to 20 of about 11,578,760 (276)
Phase-field crystal model for heterostructures [PDF]
Physical Review B, 2019 Atomically thin 2-dimensional heterostructures are a promising, novel class of materials with groundbreaking properties. The possiblity of choosing the many constituent components and their proportions allows optimizing these materials to specific requirements.
Heinonen, Vili +6 more
core +10 more sources
Advanced operator splitting based semi-implicit spectral method to solve the binary and single component phase-field crystal model [PDF]
, 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]
, 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
Dislocation nucleation in the phase-field crystal model [PDF]
Physical Review B, 2021 We use the phase field crystal model to study nucleation of edge dislocations in two dimensions under an applied stress field. A dislocation dipole nucleates under the applied stress, consistent with Burgers vector conservation. The phase field correctly accounts for elastic energy storage prior to nucleation, and for dissipative relaxation during the ...
Vidar Skogvoll +3 more
openaire +5 more sources
Evaluation of the elastic field in phase‐field crystal simulations
PAMM, 2023 AbstractThe phase‐field crystal model (PFC) describes crystal structures at diffusive timescales through a periodic order parameter representing the atomic density. One of its main features is that it naturally incorporates elastic and plastic deformation.
Maik Punke +2 more
openaire +2 more sources
Phase field study on crystal orientation effects in eutectoid phase transformation [PDF]
China 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 Crystals with Elastic Interactions [PDF]
Physical Review Letters, 2006 We report on a novel extension of the recent phase-field crystal (PFC) method introduced in [Elder et al., Phys. Rev. Lett., Vol. 88, 245701:1-4 (2002)], which incorporates elastic interactions as well as crystal plasticity and diffusive dynamics. In our model, elastic interactions are mediated through wave modes that propagate on time scales many ...
Stefanovic, Peter +2 more
openaire +3 more sources
Evaluation of Nanoscale Deformation Fields from Phase Field Crystal Simulations
Metals, 2022 Different methods for evaluation of displacement and strain fields based on phase field crystal (PFC) simulations are shown. Methods originally devised for molecular dynamics (MD) simulations or analysis of high-resolution microscopy images are adapted ...
Håkan Hallberg, Kevin Hult Blixt
doaj +1 more source
Crystal field splitting and spontaneous polarization in InP crystal phase quantum dots
Scientific 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
Improved Polymer Crystal Phase Field Model and Numerical Simulation
Mathematics, 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