The activation energy and fragility index of the glass transition in Se76Te21Sb3 chalcogenide glass
β Scribed by Soltan, A.S.; Abu-Sehly, A.A.; Joraid, A.A.; Alamri, S.N.
- Book ID
- 123218775
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- English
- Weight
- 985 KB
- Volume
- 574
- Category
- Article
- ISSN
- 0040-6031
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## Abstract **Summary:** Variations of the effective activation energy __E__ of glass transitions have been determined by applying an isoconversional method to DSC data on the glass transition in PVC, PBMA, PVP, and PEN. A variability parameter Ξ~__E__~ has been introduced to characterize the rate
## Abstract Summary: An advanced isoconversional method has been applied to determine the effective activation energies (__E__) for the glass transition in polystyrene (PS), poly(ethylene terephthalate) (PET), and boron oxide (B~2~O~3~). The values of __E__ decrease from 280 to 120 kJβΒ·βmol^β1^ in