Fabrication of Bi₆Fe₂Ti₃O₁₈ Ceramics by Mixed Oxide Method

Abstract:

In the present study Bi₆Fe₂Ti₃O₁₈ (BFTO) ceramics has been fabricated by solid state reaction from the mixture of simple oxides viz. Bi₂O₃, TiO₂ and Fe₂O₃. Stoichiometric mixture of the powders was thermally analyzed so parameters of the thermal treatment were determined. The EDS measurements have shown conservation of the chemical composition of the ceramic powder after calcination. Hot-pressing method was used for final densification of ceramic samples. The crystalline structure of the sintered samples was examined by X-ray diffraction method at room temperature. It was found that BFTO ceramics sintered at T=980 °C adopted the orthorhombic structure of Aba2 (41) space group with the following elementary cell parameters: a=5.4567(2)Å, b=49.418(2) and c=5.4826(2). Details concerning the atom’s positions are presented.

• Periodical: Materials Science Forum (Volumes 730-732)
• Pages: 100-104
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.730-732.100
• Online since: November 2012
• Authors: Agata Lisińska-Czekaj
• Keywords: Bismuth Layer-Structured Ceramics, Ceramic, Crystal Structure, Mixed Oxide Method

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