Lithium and lead chloride antimonate glasses

The glass-forming domain in the new Sb2O3-PbCl2-LiCl system has been delimited. Systematic investigations were undertaken to establish the influence of each starting component on the characteristic temperatures (Tg and Tx) and the density. Glasses have Tg between approximately 255 °C and 310 °C for the richest LiCl and the free LiCl compositions, respectively. A decrease of the network connectivity due to the PbCl2 or LiCl is supported by the data. AC, DC, and Thermally Simulated Deposition Current (TSDC) measurements were carried out to study the electrical properties of the lithium and lead chloride antimonate glasses. The interpretation of the results was supplemented by X-ray diffraction and TEM measurements in order to identify and quantify the crystalline phases observed in crystallized compositions after quenching. The positive effect of PbCl2 on conductivity was established although the TSDC demonstrates the Li+ ions can be considered as the only charge carriers in this system.