Sodium Motion in Phase-Separated Sodium Silicate Glasses |
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| Authors: | H D JANNEK D E DAY&#; |
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| Affiliation: | Materials Research Center and Ceramic Engineering Department, University of Missouri-Rolla, Rolla, Missouri 65401 |
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| Abstract: | The thermally stimulated polarization and depolarization current (TSPC/TSDC) technique was used to study Naplus; ion motion in phase-separated silicate glasses containing between 10.3 and 20 mol% Na2O. Generally, two TSDC peaks and a high-temperature background (HTB) current were observed. The two TSDC peaks were attributed to different types of Naplus; motion, i.e. a short-range reorientation process and a longer-range translational motion. Changes in the microstructure affected only the size of the larger TSDC peak located at higher temperatures. |
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