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- Title
Non-debye nature in thermal relaxation and thermal properties of lithium borate glasses studied by modulated DSC.
- Authors
Matsuda, Y.; Matsui, C.; Ike, Y.; Kodama, M.; Kojima, S.
- Abstract
Complex heat capacity, C p*= C p'– iC p'', of lithium borate glasses xLi2O·(1– x)B2O3 (molar fraction x=0.00–0.30) has been investigated by Modulated DSC. We have analyzed the shape of C p* by the Cole-Cole plot, performed fitting by the Havriliak-Negami equation, and then determined the parameters related to the non-Debye nature of thermal relaxation. Moreover, the concentration dependence of the thermal properties has been investigated. Glass transition temperatures become higher with the increase of molar fraction of Li2O and shows the board peak around x=0.26. Temperature ranges of glass transitions become narrower with the increase of Li2O concentration.
- Subjects
GLASS; THERMAL properties; AMORPHOUS substances; GLASS transition temperature; THERMOPHYSICAL properties; PHASE transitions
- Publication
Journal of Thermal Analysis & Calorimetry, 2006, Vol 85, Issue 3, p725
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-006-7652-9