X-ray powder diffraction (XRD) along with differential thermal analysis (DTA) carried out on the as-quenched samples in the 3BaO-3TiO2-B2O3 system confirmed their amorphous and glassy nature, respectively. The dielectric constants in the 1 kHz-1 MHz frequency range were measured as a function of temperature (323-748 K). The dielectric constant and loss were found to be frequency independent in the 323-473 K temperature range. The dielectric behavior was consistent with the universal dielectric response (UDR). The temperature coefficient of dielectric constant was estimated using Havinga's formula and found to be 16 ppm.K-1. The electrical relaxation was rationalized using the electric modulus formalism. The dielectric constant and loss were 17 \pm 0.5 and 0.005 \pm 0.001, respectively at 323 K in the 1 kHz-1 MHz frequency range which may be of considerable interest to capacitor industry.
@article{arxiv.1007.1700,
title = {Flat Dielectric Response in 3BaO-3TiO2-B2O3 Glasses},
author = {Rahul Vaish and K. B. R. Varma},
journal= {arXiv preprint arXiv:1007.1700},
year = {2010}
}