Results 31 to 40 of about 222,870 (258)
Phase field simulations in ferroelectric materials [PDF]
PAMM, 2006 AbstractThe hindering of domain wall movement by defects in ferroelectric materials is closely connected to electric fatigue. A movable domain wall in a ferroelectric material in most cases is modelled as a singular surface which allows the use of configurational forces.
D. Schrade, R. Müller, D. Gross
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Frontiers in Energy Research, 2023 Due to the superior thermal conductivity and high uranium density, U3Si2 is an excellent candidate for conventional UO2 nuclear fuel and shows great potential application in accident-tolerant fuel (ATF) assembly of light water reactors (LWRs). Currently,
Cong Ma +7 more
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Phase field simulations in miscibility gaps [PDF]
Calphad, 2009 Abstract Using phase field simulations, it is possible to simulate the dynamics and morphology of immiscible liquids/solids appearing at the miscibility gap of any system. These simulations may also be used to determine the asymptotic compositions of the fluids for a given Gibbs energy.
Maria Helena Sousa Soares de Oliveira Braga +3 more
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Multicomponent alloy solidification: Phase-field modeling and simulations
Physical Review E, 2005 A general formulation of phase-field models for nonisothermal solidification in multicomponent and multiphase alloy systems is derived from an entropy functional in a thermodynamically consistent way. General expressions for the free energy densities, for multicomponent diffusion coefficients, and for both weak and faceted types of surface energy and ...
Nestler, Britta, Garcke, H., Stinner, B.
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China Foundry, 2020 A new continuous multi-phase transformation field model was established for liquid-solid-eutectoid transformation. Taking Fe-C alloy as an example, the model was used to simulate the evolution of the micromorphology of the liquid-solid phase transition ...
Li Feng, Jun-he Zhong, Chang-sheng Zhu
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Phase field simulation of thermomechanical fracture [PDF]
PAMM, 2009 AbstractIn Francfort and Marigo's variational free‐discontinuity formulation of brittle fracture [1] cracking is regarded as an energy minimization process, where the total energy is minimized with respect to any admissible crack set and displacement field.
Charlotte Kuhn, Ralf Müller
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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
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A phase-field simulation of the solidification process under compression
Journal of Materials Research and Technology, 2021 Semi-solid metal forming processes cover a wide variety of technologies in manufacturing, generally leading to non-dendritic microstructures typified by rosette-like or spherical grains.
Jian-kun Ren +5 more
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MetalsCu-W alloys are widely used in high-voltage circuit breaker contacts due to their high resistance to arc ablation, but few studies have analyzed the microstructure of Cu-W alloys under arc ablation.
Hanwen Ren +7 more
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Phase-Field Simulation of Spinodal Decomposition in Mn-Cu Alloys
Metals, 2022 The spinodal decomposition was studied in the aged Mn-40 at. %Cu, Mn-30 at. %Cu, Mn-20 at. %Cu alloys using a phase-field model based on the Cahn–Hillard equation, considering a subregular solution model and the energy contribution of the magnetic ...
Darío A. Sigala-García +4 more
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