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Thermally stimulated polarization current in sodium germanate glass
Authors:A. Doi  D. E. Day
Affiliation:(1) Ceramic Engineering Department and Materials Research Centre, University of Missouri-Rolla, 65401 Rolla, Missouri, USA;(2) Present address: Department of Inorganic Materials, Nagoya Institute of Technology, 466 Nagoya, Japan
Abstract:The electrical conductivity of XNa2O·(100–X)GeO2 glasses where X is 0.19 and 27.5 mol%, was studied by means of the technique of thermally stimulated polarization current. The compositional dependence of the parameter sgr0T/n1/3, where sgr0 is the preexponential facor for conductivity and n is the nominal concentration of sodium ions, suggests that these glasses contain some sort of inhomogeneities. This suggestion is supported by the phase diagram.
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