Does the entropy and volume dependence of the structural alpha-relaxation originate from the Johari–Goldstein beta-relaxation? (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Does the entropy and volume dependence of the structural alpha-relaxation originate from the Johari–Goldstein beta-relaxation? (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Alternative label

• Prevosto, D.; Capaccioli, S.; Lucchesi, M.; Rolla, P.A.; Ngai, K.L. (2009)
  Does the entropy and volume dependence of the structural alpha-relaxation originate from the Johari–Goldstein beta-relaxation?
  in Journal of non-crystalline solids
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Prevosto, D.; Capaccioli, S.; Lucchesi, M.; Rolla, P.A.; Ngai, K.L. (literal)

Pagina inizio

• 705 (literal)

Pagina fine

• 711 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 355 (literal)

Rivista

• Journal of non-crystalline solids (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• INFM-CNR Polylab, Largo B. Pontecorvo 3, I-56127 Pisa, Italy Physics Department, University of Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy Naval Research Laboratory, WA 20375-5320, USA (literal)

Titolo

• Does the entropy and volume dependence of the structural alpha-relaxation originate from the Johari–Goldstein beta-relaxation? (literal)

Abstract

• Conventional theories of glass transition are focussed on reproducing the thermodynamic and dynamic properties of the structural a-process. However, in the last decade a class of secondary relaxations, called the Johari–Goldstein (JG) b-relaxations, has attracted attention in view of the existence of various correlations and similarities of its properties with the structural a-process. These experimental evidences suggest that the secondary process may play a fundamental role in glass transition, and any theory of glass transition would be incomplete until the inter-relations between the JG b-relaxation and the structural relaxation have been considered. In this paper, some significant experimental results showing several general and nontrivial connections between structural relaxation and JG b-relaxation are reported. In particular, these connections indicate that, like the structural relaxation, the JG b-relaxation is entropy and volume dependent. The experimental facts are consistent with the results of the coupling model. (literal)

Prodotto di

• MD.P01.017.001 Film di materiali polimerici: effett di confinamento superficiale ed applicazioni (MD.P01.017.002) (Modulo)
• Istituto per i processi chimico-fisici (IPCF) (Istituto)

Autore CNR

• DANIELE PREVOSTO (Unità di personale interno)

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• Parole chiave di "Does the entropy and volume dependence of the structural alpha-relaxation originate from the Johari–Goldstein beta-relaxation?" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto per i processi chimico-fisici (IPCF) (Istituto)
• MD.P01.017.001 Film di materiali polimerici: effett di confinamento superficiale ed applicazioni (MD.P01.017.002) (Modulo)

Autore CNR di

• DANIELE PREVOSTO (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of non-crystalline solids (Rivista)

Insieme di parole chiave di

• Parole chiave di "Does the entropy and volume dependence of the structural alpha-relaxation originate from the Johari–Goldstein beta-relaxation?" (Insieme di parole chiave)