Open Access. Powered by Scholars. Published by Universities.®

Physics Commons

Open Access. Powered by Scholars. Published by Universities.®

1993

Iowa State University

Condensed Matter Physics

Ceramic engineering

Articles 1 - 1 of 1

Full-Text Articles in Physics

Impedance Spectroscopy And Nmr Studies Of Fast Ion Conducting Chalcogenide Glasses , Hitendra Kumar Patel Jan 1993

Impedance Spectroscopy And Nmr Studies Of Fast Ion Conducting Chalcogenide Glasses , Hitendra Kumar Patel

Retrospective Theses and Dissertations

Two fully automated, temperature controlled, impedance spectroscopy workstations have been developed for this project. Impedance spectroscopy studies of glasses have been performed over the wide frequency (1 Hz-1 GHz) and wide temperature (100-500 K) range;This study yields the first-ever full compositional (three decades) range examination of the Na[subscript]2S + B[subscript]2S[subscript]3 and K[subscript]2S + B[subscript]2S[subscript]3 systems. The activation energy is modeled using a modified Anderson-Stuart model that predicts well the results for the low alkali glasses. a.c. conductivity is examined through the electrical modulus formalism and the Kohlrausch-Williams-Watts decay ...