Journal ArticleDOI
Computer simulation of the domain dynamics of a quenched system with a large number of nonconserved order parameters: The grain-growth kinetics
Long Qing Chen,Wei Yang +1 more
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TLDR
The domain dynamics of a quenched system with many nonconserved order parameters was investigated by using the time-dependent Ginzburg-Landau kinetic equations and produced microstructures remarkably similar to experimental observations of normal grain growth.Abstract:
The domain dynamics of a quenched system with many nonconserved order parameters was investigated by using the time-dependent Ginzburg-Landau kinetic equations. Our computer simulation of a model two-dimensional system produced microstructures remarkably similar to experimental observations of normal grain growth. After a short transient, the average domain or grain radius was found to increase with time as ${\mathit{t}}^{1/2}$, in agreement with most of previous mean-field predictions and more recent Q-state Potts model Monte Carlo simulations.read more
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Journal ArticleDOI
Phase-Field Models for Microstructure Evolution
TL;DR: The phase-field method has recently emerged as a powerful computational approach to modeling and predicting mesoscale morphological and microstructure evolution in materials as discussed by the authors, which is able to predict the evolution of arbitrary morphologies and complex microstructures without explicitly tracking the positions of interfaces.
Journal ArticleDOI
A review of conduction phenomena in Li-ion batteries
TL;DR: A comprehensive survey of conduction phenomena in all components of a Li-ion cell incorporating theoretical, experimental, and simulation studies is presented in this paper, where the critical results, issues and challenges with respect to ionic and electronic conduction in the cathode, anode and electrolyte are discussed.
Journal ArticleDOI
Applications of semi-implicit Fourier-spectral method to phase field equations
Long Qing Chen,Jie Shen +1 more
TL;DR: In this paper, an efficient and accurate numerical method is implemented for solving the time-dependent Ginzburg-Landau equation and the Cahn-Hilliard equation, where the time variable is discretized by using semi-implicit schemes which allow much larger time step sizes than explicit schemes; the space variables are discretised by using a Fourier-spectral method whose convergence rate is exponential in contrast to second order by a usual finite-difference method.
Journal ArticleDOI
An introduction to phase-field modeling of microstructure evolution
TL;DR: In this article, the authors introduce the concept of diffuse interfaces, the phase-field variables, the thermodynamic driving force for microstructure evolution and the kinetic phasefield equations are discussed.
Journal ArticleDOI
Computer simulation of 3-D grain growth using a phase-field model
Carl E. Krill,Long Qing Chen +1 more
TL;DR: In this article, the kinetics and topology of grain growth in 3D are simulated using a phase-field model of an ideal polycrystal with uniform grain-boundary mobilities and energies.
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