97 citations · 322 across the 13 of their papers we have counts for
13 papers
A quantitative variational phase field framework
Arnab Mukherjee, James A. Warren, Peter W. Voorhees
The finite solid-liquid interface width in phase field models results in non-equilibrium effects, including solute trapping. Prior phase field modeling has shown that this extra de…
Simulation of coarsening in two-phase systems with dissimilar mobilities
W. Beck Andrews, Peter W. Voorhees, Katsuyo Thornton
In this work, we apply phase field simulations to examine the coarsening behavior of morphologically complex two-phase microstructures in which the phases have highly dissimilar mo…
The oxygen partial pressure in solid oxide electrolysis cells with two layer electrolytes
Qian Zhang, Qinyuan Liu, Beom-Kyeong Park +2
A number of degradation mechanisms have been observed during the long-term operation of solid oxide electrolysis cells (SOEC). Using an electrolyte charge carrier transport model,…
Effect of Transport Mechanism on the Coarsening of Bicontinuous Structures: A Comparison between Bulk and Surface Diffusion
W. Beck Andrews, Kate L. M. Elder, Peter W. Voorhees +1
Coarsening of bicontinuous microstructures is observed in a variety of systems, such as nanoporous metals and mixtures that have undergone spinodal decomposition. To better underst…
Phase Field Benchmark Problems for Dendritic Growth and Linear Elasticity
Andrea M. Jokisaari, Peter W. Voorhees, Jonathan E. Guyer +2
We present the second set of benchmark problems for phase field models that are being jointly developed by the Center for Hierarchical Materials Design (CHiMaD) and the National In…
Self-consistent modeling of anisotropic interfaces and missing orientations: Derivation from phase-field crystal
Nana Ofori-Opoku, James A. Warren, Peter W. Voorhees
Highly anisotropic interfaces play an important role in the development of material microstructure. Using the diffusive atomistic phase-field crystal (PFC) formalism, we determine…
Non-equilibrium Solute Capture in Passivating Oxide Films
Xiao-xiang Yu, Ahmet Gulec, Quentin Sherman +5
If all humans vanished tomorrow, almost every metal structure would collapse within a century or less, the metal converting to an oxide. In applications ranging from the mature tec…
Predicting the morphologies of γ' precipitates in cobalt-based superalloys
Andrea M. Jokisaari, Shahab S. Naghavi, Chris Wolverton +2
Cobalt-based alloys with γ/γ' microstructures have the potential to become the next generation of superalloys, but alloy compositions and processing steps must be optimized to impr…
Simulating complex crystal structures using the phase-field crystal model
Eli Alster, David Montiel, Katsuyo Thornton +1
We introduce a phase-field crystal model that creates an array of complex three- and two-dimensional crystal structures via a numerically tractable three-point correlation function…
Phase-field crystal model for ordered crystals
Eli Alster, K. R. Elder, Jeffrey J. Hoyt +1
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 a…
Eutectic Growth in Two-Phase Multicomponent Alloys
Oriane Senninger, Peter W Voorhees
A theory of two-phase eutectic growth for a multicomponent alloy is presented. This theory employs the thermodynamic equilibrium at the solid/liquid interface and thus makes it pos…
Phase-Field Crystal Model with a Vapor Phase
Edwin J. Schwalbach, James A. Warren, Kuo-An Wu +1
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…
Controlling crystal symmetries in phase-field crystal models
Kuo-An Wu, Mathis Plapp, Peter W Voorhees
We investigate the possibility to control the symmetry of ordered states in phase-field crystal models by tuning nonlinear resonances. In two dimensions, we find that a state of sq…