Structure Of Tin Fluorophosphate Glasses Containing Pbo Or B203

Infrared, Raman and x-ray photoelectron spectroscopy were used to examine the structure of Sn-P-O-F containing PbO or B203 additives. The infrared and Raman spectroscopic results for the SnF2-SnO-P205 glasses are consistent with the XPX results and support the structural model proposed in a previous report, i.e. with increasing the content of Sn2+ and/or F- ions the P-O-P network structure of glass depolymerised and Sn2+ acts as glass network former to enhance the glass formation tendency. The relationship between the glass structure and glass properties was also discussed based on the experimental results.