Journal
JOURNAL OF NON-CRYSTALLINE SOLIDS
Volume 590, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2022.121667
Keywords
Bismuth silicate glasses; Physical; Optical; Dielectric properties; Ac-conductivity
Ask authors/readers for more resources
In this study, lithium strontium magnesium bismuth silicate glasses were prepared via melt quenching technique and characterized using XRD and FTIR techniques. The addition of strontium at the expense of magnesium was found to enhance the vitreous formation and increase the density of the glass samples. The glass system showed indirectly allowed transitions and the dielectric parameters were enhanced with increasing MgO content and temperature.
Lithium strontium magnesium bismuth silicate glasses having composition 40SiO(2) - 20Bi(2)O(3)- 20LiF -(20 -x) MgO-xSrO (x = 0, 5, 10, 15, and 20 mole%) were prepared using melt quenching technique. The prepared samples were characterized using XRD and FTIR techniques. Physical, optical and electrical properties have been investigated in order to understand the mixed modifier effect of MgO and SrO on these glasses. It was found that the addition of strontium at the expense of magnesium increases the density while decreasing the molar volume of the prepared samples. The XRD patterns showed that replacing magnesium with strontium led to enhance the vitreous formation of the prepared samples. Absorbance spectra, energy band-gap and Urbach energy were measured and calculated and the present glass system shows indirectly allowed transitions. Broadband Dielectric Spectroscopy measurements were carried in the frequency range 0.1 Hz to 10 MHz using a high resolution alpha dielectric analyzer in a temperature range from 25 to 200 ?. It was found that the dielectric parameters are enhanced with the increase in MgO content at the expense of SrO and with increasing temperature. The conductivity of the glass shows no dc conductivity behavior except at high temperature and yet it is non-conducting glass. However, the data suggest that the prepared glasses are promising for energy storage glass applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available