Non-exponential relaxations in strong and fragile glass-formers

Simple item page
dc.contributor.authorBöhmer, Roland
dc.contributor.authorNgai, K. L.
dc.contributor.authorAngell, C. A.
dc.contributor.authorPlazek, D. J.
dc.date.accessioned2008-06-12T13:37:56Z
dc.date.available2008-06-12T13:37:56Z
dc.date.issued1993-09-01
dc.description.abstractDeviations from thermally activated and from exponential response are typical features of the vitrification phenomenon and previously have been studied using viscoelastic, dielectric, calorimetric, optical, and other techniques. Linear response data from literature on about 70 covalent glass formers, ionic melts, supercooled liquids, amorphous polymers, and glassy crystals are surveyed. Except for orientational glasses and monohydric aliphatic alcohols a distinct but broad correlation of non-Debye behavior with non-Arrhenius relaxations is found. Within the broad trend several groups of materials, distinguished by their respective molecular complexity, can be identified and are shown to exhibit narrow correlations. At a given degree of deviation from Arrhenius behavior externally imposed stresses are relaxed with a departure from exponential behavior which is stronger the more the molecular or atomic subunits of the glassforming material are interconnected with each other.en
dc.identifier.citationBöhmer, R.; Ngai, K. L.; Angell, C. A.; Plazek, D. J.: Non-exponential relaxations in strong and fragile glass-formers. In: Journal of Chemical Physics Nr. 5, Jg. 99(1993), S. 4201-4209, doi: 10.1063/1.466117.de
dc.identifier.doi10.1063/1.466117
dc.identifier.urihttp://hdl.handle.net/2003/25541
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-3412
dc.identifier.urlhttp://dx.doi.org/10.1063/1.466117
dc.language.isoende
dc.publisherThe American Institute of Physicsen
dc.rightsThe Journal of Chemical Physics is copyrighted by The American Institute of Physics.en
dc.subject.ddc530en
dc.titleNon-exponential relaxations in strong and fragile glass-formersen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsrestricted

Files

License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.11 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Böhmer, Roland Prof. Dr.