Structural, Dielectric and AC Conductivity of Multicomponent Borotellurite Glasses.
Saved in:
| Title: | Structural, Dielectric and AC Conductivity of Multicomponent Borotellurite Glasses. |
|---|---|
| Authors: | Amarkumar Malge1 (AUTHOR), Sankarappa, T.1 (AUTHOR) sankarappa@rediffmail.com, Sujatha, T.1 (AUTHOR), Devidas, G. B.2 (AUTHOR) |
| Source: | Glass Physics & Chemistry. Dec2021 Supplement, Vol. 47 Issue 1, pS1-S9. 9p. |
| Subjects: | Dielectrics, Permittivity, Molecular volume, Superposition principle (Physics), Dielectric loss, Polarizability (Electricity) |
| Abstract: | Structural, dielectric and conductivity of multicomponent borotellurite glasses have been thorougly investigated. Noncrystallinity confirmed through XRD and structural units identified from FTIR spectra. Dielectric constant and loss decreased with increase of frequency and temperature. Polarization parameters such as molar volume, (Vm), molar refraction (Rm), molar polarizability (αm), electronic polarizability (αe) and metallization criterion (M) were determined. Power law behavior of ac conductivity has been verified and frequency exponent obtained. Activation energy of dc and ac conductivity obtained from Mott's small polaron hopping model fits and discussed. Frequency exponent decreased with temperature as predicted by correlated barrier hopping model. Hunt's model fit to conductivity data yielded similar frequency exponent values as obtained from power law. Linear relation between ac and dc conductivity has been observed as predicted by Barton, Nakajima and Namikawa theory. Time-temperature superposition principle has been verified by drawing master curves. [ABSTRACT FROM AUTHOR] |
| Copyright of Glass Physics & Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
Be the first to leave a comment!
