Results 21 to 30 of about 1,322,830 (294)

Phase field simulation of dendritic microstructure in additively manufactured titanium alloy [PDF]

open access: yes, 2019
Additive manufacturing (AM) processes for metals, such as selective laser sintering and electron beam melting, involve rapid solidification process. The microstructure of the fabricated material and its properties strongly depend on the solidification ...
Meng, Lingbin   +3 more
core   +1 more source

Phase separation in fluids exposed to spatially periodic external fields [PDF]

open access: yes, 2011
We consider the liquid-vapor type phase transition for fluids confined within spatially periodic external fields. For a fluid in d=3 dimensions, the periodic field induces an additional phase, characterized by large density modulations along the field ...
A. J. Archer   +6 more
core   +2 more sources

Lattice Quantum Monte Carlo Study of Chiral Magnetic Effect in Dirac Semimetals [PDF]

open access: yes, 2017
In this paper Chiral Magnetic Effect (CME) in Dirac semimetals is studied by means of lattice Monte Carlo simulation. We measure conductivity of Dirac semimetals as a function of external magnetic field in parallel $\sigma_{\parallel}$ and perpendicular $
Boyda, D. L.   +3 more
core   +4 more sources

Phase-field study of the effect of stress field and fission rate on intragranular Xe bubble evolution in U3Si2 nuclear fuel

open access: yesFrontiers 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
doaj   +1 more source

2-D PSTD simulation of optical phase conjugation for turbidity suppression [PDF]

open access: yes, 2007
Turbidity Suppression via Optical Phase Conjugation (TS-OPC) is an optical phenomenon that uses the back propagation nature of optical phase conjugate light field to undo the effect of tissue scattering. We use the computationally efficient and accurate
Tseng, Snow H., Yang, Changhuei
core   +1 more source

Phase field simulations in ferroelectric materials [PDF]

open access: yesPAMM, 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
openaire   +1 more source

Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings [PDF]

open access: yes, 2012
In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage.
Niewczas, Pawel, Orr, Philip
core   +1 more source

Multicomponent alloy solidification: Phase-field modeling and simulations

open access: yesPhysical 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.
openaire   +6 more sources

Phase field simulation of thermomechanical fracture [PDF]

open access: yesPAMM, 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
openaire   +1 more source

Simulation of Dendritic-Eutectic Growth with the Phase-Field Method

open access: yesActa Materialia, 2023
Solidification is an important process in many alloy processing routes. The solidified microstructure of alloys is usually made up of dendrites, eutectics or a combination of both. The evolving morphologies are largely determined by the solidification process and thus many materials properties are dependent on the processing conditions.
Marco Seiz   +2 more
openaire   +4 more sources

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