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Advances in Condensed Matter Physics
Volume 2013 (2013), Article ID 536754, 7 pages
Research Article

Fabrication and Electrical Characterization of Translucent Bi12TiO20 Ceramics

Physics Department, Federal University of Sergipe, Road Marechal Rondon s/n, 491000-000 São Cristovão, SE, Brazil

Received 27 March 2013; Revised 11 June 2013; Accepted 25 June 2013

Academic Editor: Victor V. Moshchalkov

Copyright © 2013 D. J. Santos et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The production of high-density Bi12TiO20 ceramics, their transmission spectrum, and impedance features are reported. The samples were synthesized at 700°C/6 h and sintered at 800°C/3 h. This procedure yielded translucent ceramics with relative density of % and average grain size of μm. Samples with 0.5 mm thickness were translucent with optical transmission of about 30% at 800 nm. The electrical and dielectric properties of the high-density ceramics were studied and compared with those measured for samples with lower density and also with the literature about Bi12TiO20 single crystals. The activation energy for the conduction process in high-density ceramic was 0.99 eV, and the dielectric permittivity was 40 at 200°C. These values are comparable to those reported for single crystals.