Abstract
In this study, the melt-quenching technique was used to synthesize various glass compositions for the system 55[(PbxCa1-x)·OTiO2]-44[2SiO2·B2O3]-1V2O5 (0.0 ≤ x ≤ 0.7). The synthesized glasses were investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, ultraviolet–visible spectroscopy, scanning electron microscopy (SEM), and nuclear magnetic resonance spectroscopy (NMR). The experimental density of the glass samples increased from 1.48 to 2.19 g/cm3 as the concentration of lead oxide (PbO) increased. The XRD results agreed well with the SEM observations and they confirmed the amorphous nature of the glasses. The FTIR and Raman analyses indicated the presence of various bonds comprising VOV, PbOB, BOB, SiOSi, BOSi and BOH, which were attributed to different vibrations. The optical band gap values decreased from 2.07 to 1.65 eV as the PbO content increased. 29Si and 11B magic angle spinning solid state NMR spectral analysis suggested that the number of non-bridging oxygens increased within the silicate and borate network as the concentration of PbO increased in the glassy system.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
