Abstract
The physical properties like density, glass transition temperature (Tg) and ionic conductivity of Lithium Borosilicate (LBS) Glasses are influenced by Al2O3 addition and gamma irradiation. The addition of Al2O3 increases the Tg and density but decreases the ionic conductivity of LBS glasses when Al2O3 is added at the cost of glass formers. An impedance analysis, modulus study and scaling behavior revealed that the conduction and relaxation mechanism is temperature independent, and depends upon glass composition.The density and Tg of LBS glasses increased and ionic conductivity decreased with 1 kGy gamma irradiation. With increase in gamma irradiation to 2 kGy, the density and Tg were observed to decrease however, ionic conductivity was observed to increase. The comparison of present and earlier reported work (Deshpande and Raut, 2017) reveals that the effect of Al2O3 addition and gamma irradiation on LBS glasses depends on the way in which Al2O3 is added in the glass matrix i.e. whether, it is added at the cost of glass former or glass modifier.
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