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Original Articles

Influence of Sr addition on structural, dielectric and Raman properties of Na0.5Bi0.5TiO3 ceramics

, , , , , & show all
Pages 59-64 | Received 05 Oct 2015, Accepted 12 Feb 2016, Published online: 17 Jun 2016
 

ABSTRACT

Lead free (Na0.5Bi0.5)1-xSrxTiO3 (x = 0, 0.01 and 0.02) ceramics were produced by a conventional solid-state sintering method. X-ray diffraction analysis shows that the obtained samples possess the perovskite structure with rhombohedral symmetry. The microstructure study shows a dense structure, in agreement with the relative density (above 97%). Dielectric analysis revealed the diffuse character of the electric permittivity anomalies and their shift to a lower temperature range after Sr doping of NBT. The Raman spectra are similar for all samples in agreement with the X-ray diffraction data. The possible origin of the observed effects was discussed.

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