Abstract
Commercially available soda lime silicate glasses (SLSG), with composition corresponding to the miscibility range, were studied to characterise their electrical properties, and to determine the dependence of these characteristics on the glass microstructure. Sodium ions, present in the glass matrix, were partially substituted by copper ions, and after the ion exchange process the specimens were annealed in a hydrogen atmosphere. It has been stated that besides the formation of copper and copper oxide nanoparticles, the joint effect of chemical and thermal treatment results in partial transformation of the Na2O-rich droplets, present in as prepared specimens, into interconnected structures, their re-dispersion and secondary phase separation. These phenomena are responsible for the behaviour of thermally stimulated depolarisation current (TSDC) spectra measured for the copper-doped SLS glasses. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
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