Synthesis and characterization of cadmium doped lead-borate glasses

Cadmium doped lead-borate glasses were prepared from the melts in appropriate proportions of PbO2, H3BO3 and (15-40 mol%) CdO mixture in the temperature range 700-950 degrees C. The infrared spectra of the glasses in the range 400-4000 cm(-1) show their structures. No boroxol ring formation was observed in the structure of these glasses. Furthermore, doped cadmium atoms were not seen in tetrahedral coordination. But the conversion of three-fold to four-fold coordination of boron atoms in the structure of glasses was observed.