Digitální knihovnaUPCE
 

Interpretation of Tool–Narayanaswamy–Moynihan relaxation parameters

ČlánekOtevřený přístuppeer-reviewedpublished
Náhled

Datum publikování

2012

Vedoucí práce

Oponent

Název časopisu

Název svazku

Vydavatel

University of Pardubice

Abstrakt

Differential scanning calorimetry (DSC) measurements were used to study enthalpic structural relaxation in selenide glasses. The examined compositions were, apart from pure Se, the following Se(100–y)Tey (for y = 0.1, 0.2 and 0.3), GeySe(100–y) (for y = 0.02, 0.04, 0.06, 0.08, 0.10 and 0.15) and AsySe(100–y)Tey (for y = 0.02, 0.04, 0.06, 0.08 and 0.10). Based on the results of fitting and non-fitting methods, relaxation behavior of these glasses was described in terms of the Tool–Narayanaswamy–Moynihan (TNM) model. The TNM model parameters as well as their change with respect to both increasing content of dopant in Se matrix within each chalcogenide system and different structural units employed in the respective systems were discussed. A unique conception was suggested, introducing a connection between the values of TNM parameters and respective molecular structures and their changes during structural relaxation. By such qualitative interpretation, the main disadvantage of phenomenological models may be, at least partially, overcome.

Rozsah stran

p. 47–65

ISSN

1211-5541

Trvalý odkaz na tento záznam

Projekt

Zdrojový dokument

Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 18/2012

Vydavatelská verze

Přístup k e-verzi

open access

Název akce

ISBN

978-80-7395-577-9

Studijní obor

Studijní program

Signatura tištěné verze

Umístění tištěné verze

Přístup k tištěné verzi

Klíčová slova

Endorsement

Review

item.page.supplemented

item.page.referenced