Results 41 to 50 of about 1,384,898 (197)

Phase-Field Simulation of Void Evolution Under Irradiation: A Reaction–Diffusion Model

Crystals
We propose a reaction–diffusion phase-field model to simulate the microstructure evolution of voids in systems with low vacancy concentration under irradiation.
Xiaoming Shi, Zheng Wang, Tianhao Gao, Guoping Cao, Zhuhong Liu, Houbing Huang, Xingqiao Ma, Sanqiang Shi   +7 more
doaj   +1 more source

Magnetic Field-Induced Phase Transition

Crystals, 2020
The magnetic field controls the spin and orbital motion of electrons and can induce a phase transition through a change of the ground state [...]
Yasuhiro H. Matsuda
doaj   +1 more source

Computational thermodynamics and microstructure simulations to understand the role of grain boundary phase in Nd-Fe-B hard magnets

Science and Technology of Advanced Materials, 2021
To control the coercivity of Nd hard magnets efficiently, the thermal stability of constituent phases and the microstructure changes observed in hard magnets during thermal processes should be understood.
Toshiyuki Koyama, Yuhki Tsukada, Taichi Abe   +2 more
doaj   +1 more source

Efficient Phase-Field Modeling of Quasi-Static and Dynamic Crack Propagation Under Mechanical and Thermal Loadings

Mathematics
The main objective of this work was to model the failure mechanisms of brittle materials subjected to thermal and mechanical loads. A diffusive representation of the crack topology provides the basis for the regularized kinematic framework used.
Lotfi Ben Said, Hamdi Hentati, Mohamed Turki, Alaa Chabir, Sattam Alharbi, Mohamed Haddar   +5 more
doaj   +1 more source

Numerical simulation of solute trapping phenomena using phase-field solidification model for dilute binary alloys

Materials Research, 2009
Numerical simulation of solute trapping during solidification, using two phase-field model for dilute binary alloys developed by Kim et al. [Phys. Rev. E, 60, 7186 (1999)] and Ramirez et al. [Phys. Rev. E, 69, 05167 (2004)] is presented here.
Henrique Silva Furtado, Américo Tristão Bernardes, Romuel Figueiredo Machado, Carlos Antônio Silva   +3 more
doaj   +1 more source

Phase-Field Simulation of the Creep Mechanism in the AZ31 Magnesium Alloy Under Discontinuous Dynamic Recrystallization Dominance

Crystals
Discontinuous dynamic recrystallization is a critical microstructural evolution mechanism during high-temperature deformation, influencing material properties significantly.
Alireza Rezvani, Ramin Ebrahimi, Ebad Bagherpour   +2 more
doaj   +1 more source

Phase-field-crystal model for liquid crystals

, 2010
Based on static and dynamical density functional theory, a phase-field-crystal model is derived which involves both the translational density and the orientational degree of ordering as well as a local director field. The model exhibits stable isotropic,
de Gennes P G, Emmerich H, Frenkel D, Graf H, Grinfeld M A, Hartmut Löwen, Löwen H, Prieler R, Roth R   +8 more
core   +1 more source

Quantum Phase Field

, 2023
AbstractIn this chapter a new paradigm for the understanding of the physical world is developed based on phase-field type non-linear wave solutions. Two 1-dimensional wave fronts, right- and left-moving are combined to define the doubloon, the basic element of mass and space. The interface energy of a standard phase field defines the mass of elementary
Ingo Steinbach, Hesham Salama
openaire   +1 more source

Phase field modelling of surfactants in multi-phase flow [PDF]

, 2018
A diffuse interface model for surfactants in multi-phase flow with three or more fluids is derived. A system of Cahn-Hilliard equations is coupled with a Navier-Stokes system and an advection-diffusion equation for the surfactant ensuring thermodynamic ...
Dunbar, Oliver R. A., Lam, Kei Fong, Stinner, Bjorn   +2 more
core   +3 more sources

Phase Field Modelling of Submonolayer Epitaxial Growth

, 2010
We report simulations of submonolayer epitaxial growth using a continuum phase field model. The island density and the island size distribution both show scaling behavior.
Ming, Fan, Zangwill, Andrew
core   +1 more source