Synthesis and structural studies-of Na_2O-ZnO-ZnF_2-B_2O_3 oxyfluoride glasses

摘要

This paper describes the synthesis and spectroscopic studies of the glass system, 20Na_2O-(20-x) ZnO-xZnF_2-60B_2O_3 (x = 0, 5,10,15, 20), prepared by melt quenching method. The analyses of DSC and XRD did not show the crystallinity of the glass sample.~(11)B MAS-NMR shows the presence of sharp peak around -14 ppm. From the IR studies, the broadening of the peak around 1200-1400 and 800-1100 cm~(-1) shows the presence of mixed linkages like B-O-B, B-O-Zn in the network.