The a.c. conductivity of CuO-containing lead silicate glasses

摘要: The a.c. conductivity of copper-free and copper-containing lead silicate glasses the base composition 80PbO–20SiO2 (wt %), equivalent to 51.5PbO–48.5SiO2 (mol was measured at different temperatures frequencies. ratio Cu2+/Cutotal as a function CuO content in studied quantitatively determined by ESR. results were used derive mechanism conduction glasses. Values conductivity, dielectric loss constant decreased with addition up 0.25 g/100 g glass increased further additions CuO. This may be due gradual decrease (as indicated ESR) increasing content, through reduction some Cu2+ ions Cu+ ions, which have higher mobility. conductivities agreed Anderson Stuart model that ionic character.