Abstract
To study some effects of cobalt cations on some properties of a glass system, new glass formulation [75% B2O3 – 5% Al2O3 – (20–x) %Na2O – (x) % CoCl2], where x = 0, 1, 2, 3 and 4 mol% was obtained via melt quenching method. X-ray diffraction (XRD) results emphasize the amorphous nature. The glasses' internal structure was examined via Fourier transform infrared (FTIR). The dependence of density (⍴), boron to boron separation (dB-B), molar volume (Vm), optical absorbance (A), Urbach energy (EU) and band gap (Eg) on Co2+ cations content was scrutinized. The trend of density (⍴), molar volume (Vm), optical absorbance (A), and Urbach energy (EU) shows an increasing behavior, while band gap (Eg) exhibits a decrement behavior with CuCl2 content. The optical absorption coefficient was employed to calculate Eg using the phonon emission and absorption. The crystal field (10Dq), Racah parameters (B and C) and the nephelauxetic ratio will be obtained from optical absorption spectra. According to the obtained results, the sample that contains 4% mol. of CoCl2 has the highest density, molar volume and the least band gap.
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.
