Structural investigation of vitreous barium zinc mixed metaphosphate

FTIR spectra and thermal properties of TiO2-doped iron phosphate glasses

“…In the infrared spectrum of T0 glass sample, the absorption band at 549 cm À1 is assigned to bending vibrations of OAPAO in Q 1 structure [8,13,17,18,19]. Others IR bands at 631, 765 and 934 cm À1 can correspond to stretching band of the LnAOAP (Ln@Fe, Ti) bonds, symmetric stretching vibrations of PAOAP and asymmetric modes of PAOAP in Q 1 species, respectively [13,14,17,20,21,22].…”

Characterization of Phosphate and Borate glasses with different additions, as optical band-Pass filters used for Photometric detectors

“…64, No. 12 (2021) 7412 -The band at 1340 cm-1 which assigned to symmetrical vibration of (P-O) bonds, is shifted to lower wavenumber moreover, this band vanishes or merges with the band appeared at 1260 cm-1 [31][32][33].…”

“…-The band at 1260 cm-1 which is assigned to an asymmetric stretch of (O-P-O) bond decrease in intensity and shifted to lower wavenumber by increasing the concentration of Cu2O it was noticed that this peak is disappeared [31][32][33]. ________________________________________________ Egypt.…”

“…All three systems were prepared by the conventional melt-quench technique. The chemical reagents were thoroughly mixed and ground for (30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40) min in mortar pestle. Then the batch was melted in a porcelain crucible using a muffle furnace for (3)(4) hours at a temperature ranging from 700 to 1100 ºC depending on the composition.…”

Structure and electrical properties of ZnO doped barium-metaphosphate glasses

“…The strong polarizability of Zn 2þ ions, the smaller bonding energy of ZneO bonds and the larger volume of [ZnO 4 ] are responsible for the decrease in the viscosity of the ZBP glasses with the additions of ZnO. [28]. The activation energy of crystallization, E, of the ZBP glasses are shown in Fig.…”