Premium
Heterogeneous coupled dissipation modeling of volume and enthalpy recovery in glass systems
Author(s) -
Wang C. J.,
He J.,
Ying X. N.,
Huang Y. N.,
Riande E.
Publication year - 2005
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200440011
Subject(s) - enthalpy , dissipation , thermodynamics , volume (thermodynamics) , statistical physics , materials science , chemistry , physics
The dynamics of volume and enthalpy recovery of glasses are studied by introducing a new fictive temperature form and the size distribution of the solid‐like clusters into the original heterogeneous coupled dissipation model. The renewed model gives a satisfactory description of the pertinent experiments. The present model is also compared with the successful Kovacs–Aklonis–Hutchinson–Ramos and the Tool–Narayanaswamy–Moynihan models. It is found that the parameters describing the non‐linearity and non‐exponentiality of the recovery in these two models are related with the heterogeneity of glass‐formers. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)