| Affinity and its derivatives in the glass transition process. | |
| | |
MedLine Citation:
|
PMID: 22803545 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
The thermodynamic treatment of the glass transition remains an issue of intense debate. When associated with the formalism of non-equilibrium thermodynamics, the lattice-hole theory of liquids can provide new insight in this direction, as has been shown by Schmelzer and Gutzow [J. Chem. Phys. 125, 184511 (2006)], by Möller et al. [J. Chem. Phys. 125, 094505 (2006)], and more recently by Tropin et al. [J. Non-Cryst. Solids 357, 1291 (2011); ibid. 357, 1303 (2011)]. Here, we employ a similar approach. We include pressure as an additional variable, in order to account for the freezing-in of structural degrees of freedom upon pressure increase. Second, we demonstrate that important terms concerning first order derivatives of the affinity-driving-force with respect to temperature and pressure have been previously neglected. We show that these are of crucial importance in the approach. Macroscopic non-equilibrium thermodynamics is used to enlighten these contributions in the derivation of C(p),κ(T), and α(p). The coefficients are calculated as a function of pressure and temperature following different theoretical protocols, revealing classical aspects of vitrification and structural recovery processes. Finally, we demonstrate that a simple minimalist model such as the lattice-hole theory of liquids, when being associated with rigorous use of macroscopic non-equilibrium thermodynamics, is able to account for the primary features of the glass transition phenomenology. Notwithstanding its simplicity and its limits, this approach can be used as a very pedagogical tool to provide a physical understanding on the underlying thermodynamics which governs the glass transition process. |
| | |
Authors:
|
J-L Garden; H Guillou; J Richard; L Wondraczek |
Related Documents
:
|
1428125 - Neuropeptides in pulmonary edema fluid of adult respiratory distress syndrome. 447005 - Permselectivity of cat blood-lymph barrier to endogenous macromolecules. 2882795 - The effect of vasoactive agents on the contractions of the initial lymphatics of the ba... 7640005 - The measurement of permeability in single rat venules using the red cell microperfusion... 2014895 - General anaesthesia and undrained pneumothorax. the use of a computer-controlled propof... 7593155 - Capillary microscopic findings in patients with cvi under different hydrostatic conditi... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Journal of chemical physics Volume: 137 ISSN: 1089-7690 ISO Abbreviation: J Chem Phys Publication Date: 2012 Jul |
Date Detail:
|
Created Date: 2012-07-18 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0375360 Medline TA: J Chem Phys Country: United States |
Other Details:
|
Languages: eng Pagination: 024505 Citation Subset: IM |
Affiliation:
|
Institut Néel, CNRS et UJF, 25 Avenue des Martyrs, 38042 Grenoble Cedex 09, France. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Deformation of inherent structures to detect long-range correlations in supercooled liquids.
Next Document: Vibrational energy relaxation of large-amplitude vibrations in liquids.