Results 1 to 10 of about 11,578,760 (276)

Phase-Field Crystal Method for Bilayer Graphene [PDF]

open access: yesNanomaterials
Bilayer graphene has been a subject of intense study in recent years. Its most common structure is AB (Bernal) stacking, where one layer is shifted relative to the other, leading to distinct electronic behaviors compared to the less stable AA stacking or
Heting Qiao, Kai Liu
doaj   +4 more sources

A Self-Consistent Phase Field Crystal Method for Twisted Bilayer Graphene [PDF]

open access: yesNanomaterials
Correlated electronic phenomena in magic-angle twisted bilayer graphene have garnered widespread research interest in two-dimensional materials science.
Pingqia Wang, Kai Liu
doaj   +2 more sources

Review of γ’ Rafting Behavior in Nickel-Based Superalloys: Crystal Plasticity and Phase-Field Simulation

open access: yesCrystals, 2020
Rafting is an important phenomenon of the microstructure evolution in nickel-based single crystal superalloys at elevated temperature. Understanding the rafting mechanism and its effect on the microstructure evolution is of great importance in ...
Zhiyuan Yu   +4 more
doaj   +3 more sources

Phase-field-crystal model for ordered crystals

open access: yesPhysical Review E, 2017
We describe a general method to model multicomponent ordered crystals using the phase-field crystal (PFC) formalism. As a test case, a generic B2 compound is investigated. We are able to produce a line of either first-order or second-order order-disorder phase transitions, features that have not been incorporated in existing PFC approaches. Further, it
Eli Alster   +2 more
exaly   +5 more sources

Solidification of Undercooled Liquid under Supergravity Field by Phase-Field Crystal Approach

open access: yesMetals, 2022
Solidification under a supergravity field is an effective method to control the solidified microstructure, which can be used to prepare materials with excellent comprehensive properties.
Nengwen Hu   +5 more
doaj   +3 more sources

Phase field crystal models with applications to laser deposition: A review [PDF]

open access: yesStructural Dynamics
In this article, we address the application of phase field crystal (PFC) theory, a hybrid atomistic-continuum approach, for modeling nanostructure kinetics encountered in laser deposition. We first provide an overview of the PFC methodology, highlighting
Duncan Burns   +2 more
doaj   +2 more sources

Pattern Formation under Deep Supercooling by Classical Density Functional-Based Approach

open access: yesEntropy, 2023
Solidification patterns during nonequilibrium crystallization are among the most important microstructures in the natural and technical realms. In this work, we investigate the crystal growth in deeply supercooled liquid using the classical density ...
Kun Wang   +4 more
doaj   +1 more source

Field dislocation mechanics and phase field crystal models [PDF]

open access: yesPhysical Review B, 2020
A new formulation of the Phase Field Crystal model is presented that is consistent with the necessary microscopic independence between the phase field, reflecting the broken symmetry of the phase, and both mass density and elastic distortion. Although these quantities are related in equilibrium through a macroscopic equation of state, they are ...
Amit Acharya, Jorge Viñals
openaire   +2 more sources

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

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