Abstract
15BaO-10PbO-5SrO-70P2O5 phosphate glass has been prepared by 2.45 GHz microwave heating by changing temperature of glass formation and their physical properties have been investigated by 31P MAS NMR, 1H MAS NMR and AC conductivity. The four bands named as band-A, band-B, band-C and band-D were observed in 1H MAS NMR spectra. The band-A and band-B originate in protons in the glass, whereas band-C and band-D originate in protons in adsorbed water on the surface of glass. From the result that AC conductivity increases with increase of the intensity of band-B and decreases with increase of the intensity of band-A, proton for band-B can be assigned to be mobile proton.
