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Investigation of structural and physical properties of xSrO-(100-x)P2O5 glasses

ABSTRACT The structural and physical properties for xSrO-(100-x)P2O5 glasses, with x = 30, 35, 40, 45, and 50, were investigated. The amorphous state of samples was verified by X-ray diffraction (XRD). Substitution of P2O5 for SrO in the binary SrO–P2O5 glass decreases the molar volume and increase the density measurements from 1.98 to 4.01 g/cm3. The Infra-Red (IR) and Raman spectra allow us to identify the network modifier role of Sr2+ ions and the structural network of these phosphate glasses which consists of branching (Q3), middle phosphate tetrahedra (Q2) and pyrophosphate (Q1).