Electrical conductivity of glass of the 8Na(2)O-(22-x)B2O3-70SiO(2-x) Fe2O3 system

摘要

The electrical properties of glasses of the 8Na(2)O-(22-x)B2O3-70SiO(2-x) Fe2O3 system, where x varies from 0.3 to 10 mol %, were studied. The glasses were heat treated at temperatures of 550 and 700A degrees C for 144 and 2 h, respectively. When comparing the results of the measurements of the electrical resistance and the calculated values of activation energy of electrical conductivity of the iron-containing glasses and ironfree glass of the 8Na(2)O center dot 22B(2)O(3) center dot 70SiO(2) composition, it was concluded that the ionic conductivity is observed in the studied Fe2O3-containing glasses. An increase in conductivity with increasing content of Fe2O3 was observed for glasses that was heat treated at 700A degrees C for 2 h.