The kinetics of phase transitions: I. The role of heterogeneity

A kinetic model involving one order parameter was developed to study the impact of het- erogeneity on the nucleation. The role of asymmetry on phase transitions in the presence of an intermediate metastable state is described in comparison with the generic model. In particular, the discovery of a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Paladi, Florentin, Gamurari, Visarion
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2010
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/a88711343e0f4f81b7c542c7aae34fa9
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a88711343e0f4f81b7c542c7aae34fa9
record_format	dspace
spelling	oai:doaj.org-article:a88711343e0f4f81b7c542c7aae34fa92021-11-21T12:04:12ZThe kinetics of phase transitions: I. The role of heterogeneity2537-63651810-648Xhttps://doaj.org/article/a88711343e0f4f81b7c542c7aae34fa92010-02-01T00:00:00Zhttps://mjps.nanotech.md/archive/2010/article/4206https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365A kinetic model involving one order parameter was developed to study the impact of het- erogeneity on the nucleation. The role of asymmetry on phase transitions in the presence of an intermediate metastable state is described in comparison with the generic model. In particular, the discovery of anomalous generation and extinction of crystal nuclei in nonequilibrium supercooled liquids reflects experimentally the effect of the real heterogeneous structure and its irreversible relaxation on the stability of nuclei. It was found that the cubic term in the order parameter of the Landau-type potential associated with the asymmetry of the system serves to increase the stability of crystalline state for the suitably varied control parameter. The cases which allow analytical solution of the problem and the realization of different transition scenarios are also discussed. Paladi, FlorentinGamurari, VisarionD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 9, Iss 1, Pp 38-45 (2010)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Paladi, Florentin Gamurari, Visarion The kinetics of phase transitions: I. The role of heterogeneity
description	A kinetic model involving one order parameter was developed to study the impact of het- erogeneity on the nucleation. The role of asymmetry on phase transitions in the presence of an intermediate metastable state is described in comparison with the generic model. In particular, the discovery of anomalous generation and extinction of crystal nuclei in nonequilibrium supercooled liquids reflects experimentally the effect of the real heterogeneous structure and its irreversible relaxation on the stability of nuclei. It was found that the cubic term in the order parameter of the Landau-type potential associated with the asymmetry of the system serves to increase the stability of crystalline state for the suitably varied control parameter. The cases which allow analytical solution of the problem and the realization of different transition scenarios are also discussed.
format	article
author	Paladi, Florentin Gamurari, Visarion
author_facet	Paladi, Florentin Gamurari, Visarion
author_sort	Paladi, Florentin
title	The kinetics of phase transitions: I. The role of heterogeneity
title_short	The kinetics of phase transitions: I. The role of heterogeneity
title_full	The kinetics of phase transitions: I. The role of heterogeneity
title_fullStr	The kinetics of phase transitions: I. The role of heterogeneity
title_full_unstemmed	The kinetics of phase transitions: I. The role of heterogeneity
title_sort	kinetics of phase transitions: i. the role of heterogeneity
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2010
url	https://doaj.org/article/a88711343e0f4f81b7c542c7aae34fa9
work_keys_str_mv	AT paladiflorentin thekineticsofphasetransitionsitheroleofheterogeneity AT gamurarivisarion thekineticsofphasetransitionsitheroleofheterogeneity AT paladiflorentin kineticsofphasetransitionsitheroleofheterogeneity AT gamurarivisarion kineticsofphasetransitionsitheroleofheterogeneity
_version_	1718419265184333824

The kinetics of phase transitions: I. The role of heterogeneity

Ejemplares similares