Electrical conductivity,relaxation, and scaling analysis studies of lithium alumino phosphate glasses and glass ceramics |
| |
Authors: | M. V. N. V. D. Sharma A. V. Sarma R. Balaji Rao |
| |
Affiliation: | (1) Department of Physics, Andhra University, Visakhapatnam, Andhra Pradesh, 530-003, India;(2) Department of Physics, GITAM Institute of Technology, GITAM University, Hyderabad Campus, Hyderabad, Andhra Pradesh, 502 329, India; |
| |
Abstract: | Different compositions of lithium aluminum phosphate glasses were prepared by melt quenching technique. The best bulk conductivity achieved by the sample G3, (28 mol% of lithium oxide). Further, the investigation extended by crystallizing the G3 sample at different temperatures, 200 °C (GC200), 300 °C(GC300), 400 °C (GC400), and 500 °C (GC500). The electrical measurements for all the glasses and glass ceramics were carried out in the frequency range of 1–105 Hz and at a temperature range of 393–513 K by the impedance spectroscopy. The variation of conductivity with frequency of the samples was explained in the light of different valency states of aluminum ions. AC conductivity data are fitted to a power law equation. Scaled spectra for ac conductivity and modulus data suggested that the present glass samples follow temperature independent conductivity distribution relaxation mechanism. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|