Transport and Relaxation Study of Ionic Phosphate Glasses

Peter Bury; Peter Hockicko; Miroslav Jamnický

doi:10.4028/www.scientific.net/AMR.39-40.111

Paper Titles

Volumetric Changes Between Different Conformations of Two SiOH Groups in SiO₂ Glass
p.89

The Yttria-Alumina Glasses - MD and TD Models
p.93

Zinc Borophosphate Glasses Doped with Molybdenum Oxide
p.97

The Structure-Property Relationship in Oxide Glasses: A Thermodynamic Approach
p.103

Transport and Relaxation Study of Ionic Phosphate Glasses
p.111

Glass as Solid Non-Equilibrium Phase under Negative Pressure
p.117

New Paradigm of Glass Structure and Physicochemical Essence of Glass Transition
p.123

Basicity or Ionicity – A New Approach for Understanding Glass Properties
p.129

Poisson's Ratio and the Glass Network Topology - Relevance to High Pressure Densification and Indentation Behavior
p.137

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 39-40Transport and Relaxation Study of Ionic Phosphate...

Transport and Relaxation Study of Ionic Phosphate Glasses

Abstract:

Dynamic processes in glassy materials with ionic conductivity are extremely important since the ion transport significantly affects their practical performance. Conductivity measurement and dielectric relaxation spectroscopy are powerful techniques that reflect the essential features of the transport and relaxational dynamics of the mobile ions that encounter different kinds of site and ionic hopping motion connected with charge mobility. Acoustic spectroscopy is another technique for the study of relaxations in glasses. In this contribution the acoustic and electrical relaxation processes are compared on identical ionic phosphate glasses of the systems CuI-CuBr-Cu2O-P2O5 and CuI-CuBr-Cu2O-P2O5-MoO3 containing Cu+ ions. The acoustic attenuation spectra indicate various relaxation processes and at least two conductivity regimes of transport mechanisms were observed. Both the acoustic and electrical measured data were analyzed using suitable model representations.