Characterization of Bi₆Fe₂Ti₃O₁₈ Ceramics with Impedance Spectroscopy

Abstract:

In the present research the tool of impedance spectroscopy was utilized to characterize dielectric behavior of Aurivillius-type ceramics of Bi₆Fe₂Ti₃O₁₈ composition fabricated by hot pressing method from the stoichiometric mixture of oxides Bi₂O₃, TiO₂ and Fe₂O₃. Impedance spectroscopy was applied to characterize dielectric response of bulk, grain boundary, and material/electrode interfaces of the fabricated polycrystalline ceramic material at both room and elevated temperature. The Kramers-Kronig data validation test was employed in the impedance data analysis. Experimental data were fitted using the CNLS fitting method. Agreement between experimental and simulated data was established.

• Periodical: Materials Science Forum (Volumes 730-732)
• Pages: 76-81
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.730-732.76
• Online since: November 2012
• Authors: Agata Lisińska-Czekaj, Dionizy Czekaj
• Keywords: Aurivillius Structure, Ceramic, Impedance Spectroscopy

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