STRUCTURAL AND ELECTRICAL PROPERTIES OF PbO - DOPED SrTiO3 CERAMICS

K. Chandra Babu Naidu, M. Maddaiah, Anil Kumar, L. Obulapathi

2015 · 10 citations · 0 references

Abstract

The structural, micro structural and electric properties have been investigated for lead oxide doped strontium titanate ceramics synthesized via conventional solid state diffusion method which were calcined at 900 0 C for 13hr and sintered at 1000 0 C for 4hrs respectively. The strong relaxation dynamics in loss factor was observed at higher temperatures. AC- conductivity variations with temperatures were studied and the activation energies (Ea) were calculated of the range 0.24-0.94eV using the lnσ Vs 1/T plots. The crystalline sizes were found to be varying from 77nm-109nm by means of XRD and the FTIR spectrum was recorded over a continuous spectral range of 400-4000cm -1 to