Título:
|
Temporal evolution of the domain structure in a Poisson-Voronoi nucleation and growth transformation. Results for one and three dimensions
|
Autor/a:
|
Pineda Soler, Eloi; Crespo Artiaga, Daniel
|
Otros autores:
|
Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear; Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials |
Abstract:
|
The distribution of spatial domain structures originated during one and three dimensional
Poisson-Voronoi transformations are computed analytically extending the recently obtained re-
sults for the two dimensional case. The presented method gives a full description of the developed
microstructure and is valid for tessellations of any dimensionality. The temporal and spatial depen-
dences of the domain structure are completely discriminated and separated, showing the existence of
geometric configurations independent of time. A single computation of the probability distribution
of these geometric configurations allows us to calculate the total free-boundary and size probabil-
ity distributions at any desired time. The obtained results show full agreement with stochastic
simulations and reproduce completely the previously existing partial results. A discussion about
the potential applications of the method to the calculation of other geometrical properties and the
characteristics of the final static structure leading to a gamma distribution of sizes is also presented. |
Materia(s):
|
-Àrees temàtiques de la UPC::Enginyeria dels materials -Àrees temàtiques de la UPC::Física -Phase transformations (Statistical physics) -Microstructure -Stochastic processes. -Probability theory, stochastic processes, and statistics -Phase transitions: general studies -Phase diagrams and microstructures developed by solidification and solid-solid phase transformations -Processos estocàstics -Transformacions de fase (Física estadística) |
Derechos:
|
|
Tipo de documento:
|
Artículo |
Compartir:
|
|