Quantitative structural analysis, phase transition and relaxor nature of Bi0.5Li0.5TiO3 ceramic prepared by mechanical alloying

Abstract

Bi 0.5 Li 0.5 TiO 3 (LBT) ceramics was prepared by mechanochemical synthesis and sintered at 600°C. Quantitative structural analysis was carried out and various structural parameters are presented here along with Rietveld refinement data. The dielectric study was carried out and observed that, presence of two dielectric anomalies in all frequencies signifies the phase transformation from ferroelectric to anti-ferroelectric at temp (T d ) 133.32°C and from anti ferroelectric phase to paraelectric phase at temp (T c ). 352.904°C for the first and second curve respectively. Different dielectric parameters and dielectric loss values T d and T c are noted. The values of e m , e r and tan d at temperatures T d , T c and T r (room temperature) at 10 kHz are presented in this study.