Results 31 to 40 of about 1,659,732 (316)

Phase Field Modeling of Dendritic Growth on Spherical Surfaces

open access: yesFrontiers in Materials, 2020
The spontaneous formation of a crystal phase is one of the most common and beautiful pattern formation mechanisms in nature. Different instabilities in the crystal interface may lead to the growth of ramified structures, known as dendritic crystal growth.
Laureano Ortellado, Leopoldo R. Gómez
doaj   +1 more source

Progress and opportunities in modelling environmentally assisted cracking

open access: yesRILEM Technical Letters, 2021
Environmentally assisted cracking phenomena are widespread across the transport, defence, energy and construction sectors. However, predicting environmentally assisted fractures is a highly cross-disciplinary endeavour that requires resolving the ...
Emilio Martínez Pañeda
doaj   +1 more source

Modelling of the Solidifying Microstructure of Inconel 718: Quasi-Binary Approximation

open access: yesModelling, 2023
The prediction of the equilibrium and metastable morphologies during the solidification of Ni-based superalloys on the mesoscopic scale can be performed using phase-field modeling.
Nikolai Kropotin   +9 more
doaj   +1 more source

Single-Trial Phase Precession in the Hippocampus [PDF]

open access: yes, 2009
During the crossing of the place field of a pyramidal cell in the rat hippocampus, the firing phase of the cell decreases with respect to the local theta rhythm.
Schmidt, Robert C.   +11 more
core   +1 more source

Phase field simulation of microstructure evolution and process optimization during homogenization of additively manufactured Inconel 718 alloy

open access: yesFrontiers in Materials, 2022
An in-depth and integral understanding of the microstructural evolution during thermomechanical process (TMP) is of great significance to optimize the manufactural process for high-quality components via additive manufacturing.
Miaomiao Chen   +9 more
doaj   +1 more source

Phase-field modelling of molecular dynamics with diffusive motions

open access: yes, 2022
Recently, phase-field modelling has been expanded to the molecular scale. However, such atomistic phase-field simulation cannot treat diffusive motions of molecules so far. Here, we modify phase-field modelling of molecular dynamics to include rigid body
Kairi, Masuda
core   +1 more source

The frequency-dependent polarization switching in nanograined BaTiO3 films under high-strength electric field

open access: yesInternational Journal of Smart and Nano Materials, 2023
The polarization reorientation in ferroelectric nanomaterials under high-strength AC electric fields is intrinsically a frequency-dependent process. However, the related study is not widely seen.
Ming-Ran Zhang, Yu Su
doaj   +1 more source

Phase Field Methods and Dislocationss

open access: yesMRS Proceedings, 2000
We present a general formalism for incorporating dislocations in Phas Field methods. This formalism is based on the elastic equiva;ence betweem a dislocation loop and a platelet inclusion of specific stress-free strain related to the loop Burgers vector and normal.
Rodney, D., Finel, A.
openaire   +3 more sources

Optimal E-Field Vector Combination for a Highly Focused Antenna-Array [PDF]

open access: yes, 2014
A near-field highly focused circular phased-array antenna for 5.8-GHz radio frequency identification (RFID) applications is presented. The electric field (E-field) at the focus is enhanced by a constructive vector combination in a three-dimensional (3-D)
Perallos, Asier   +5 more
core   +1 more source

A Generalized Phase-Field System

open access: yesJournal of Mathematical Analysis and Applications, 1999
The authors consider the problem \((\Omega\) bounded domain in \(\mathbb{R}^N\) with \(C^2\)-boundary) \[ \begin{aligned} {\partial u\over\partial t}+l {\partial \varphi\over\partial t}=\Delta u+f(x,t), \quad & (x,t)\in Q:=\Omega \times(0,T),\\ {\partial\varphi \over\partial t}=\Delta\varphi+ F(x,t,\varphi) +u,\quad & (x,t)\in Q,\\ {\partial u\over ...
Moroşanu, Costică, Motreanu, Dumitru
openaire   +1 more source

Home - About - Disclaimer - Privacy