The effect of non-linearity contribution to the volume and enthalpy relaxations in amorphous materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F02%3A00008248" target="_blank" >RIV/00216275:25310/02:00008248 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The effect of non-linearity contribution to the volume and enthalpy relaxations in amorphous materials
Original language description
The effect of non-linearity contribution to the relaxation behavior of amorphous materials is analyzed within the Tool-Narayanaswamy-Moynihan (TNM) model. It is shown that the rate of relaxation response to a temperature jump can conveniently be characterized on the basis of the stabilization period and the fictive relaxation rate. A simple equation relating these quantities and parameters of the TNM model is derived. This equation separates the contribution of non-exponentiality and non-linearity. It has been tested for polyvinylacetate and As2S3 relaxation data. Within the limits of experimental error it seems that volume and enthalpy relaxations in these materials exhibit a similar response that can be well correlated with previously published TNM parameters.
Czech name
Vliv příspěvku nelinearity na objemovou a entalpickou relaxaci amorfních materiálů
Czech description
Vliv příspěvku nelinearity na objemovou a entalpickou relaxaci amorfních materiálů byl analyzován s využitím Tool - Narayanaswamy - Moynihan modelu. Byla odvozena rovnice vyjadřující rychlost relaxace v závislosti na příspěvku nelinearity, šířky spektrarelaxačních časů a velikosti teplotní změny.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/LA%20117" target="_blank" >LA 117: Activities at the International Confederation for Thermal Analysis and Calorimetry and the Editorial Board of Thermochimica Acta</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2002
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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