Electrical transport properties of 0.5Li2O-0.5M2O-2B2O3 M=Li, Na and K glasses - Condensed Matter > Materials ScienceReport as inadecuate




Electrical transport properties of 0.5Li2O-0.5M2O-2B2O3 M=Li, Na and K glasses - Condensed Matter > Materials Science - Download this document for free, or read online. Document in PDF available to download.

Abstract: Transparent glasses in the system 0.5Li2O-0.5M2O-2B2O3 M=Li, Na and K werefabricated via the conventional melt quenching technique. Amorphous and glassynature of the samples were confirmed via the X-ray powder diffraction and thedifferential scanning calorimetry, respectively. The frequency and temperaturedependent characteristics of the dielectric relaxation and the electricalconductivity were investigated in the 100 Hz - 10 MHz frequency range. Theimaginary part of the electric modulus spectra was modeled using an approximatesolution of Kohrausch-Williams-Watts relation. The stretching exponent,{\beta}, was found to be temperature independent for 0.5Li2O-0.5Na2O-2B2O3LNBO glasses. The activation energy associated with DC conductivity was foundto be higher 1.25eV for 0.5Li2O-0.5K2O-2B2O3 LKBO glasses than that of theother glass systems under study. This could be attributed to the mixed cationiceffect.



Author: G. Paramesh, Rahul Vaish, K. B. R. Varma

Source: https://arxiv.org/







Related documents