The Effects of Sintering Temperature on the Dielectric Properties of Sr(FeNb)_0.5O₃ Doped with Ba(Zr_0.25Ti_0.75)O₃

Abstract:

In this work, ceramics of Sr(Fe_0.5Nb_0.5O₃) doped with Ba(Zr_0.25Ti_0.75)O₃ (10 mol%), were synthesized by a solid-state reaction technique. The powders were calcined at 1300 °C for 12 hr and then sintered at 1400-1500 °C for 4 hr. Effects of sintering temperature on the properties of the ceramic were studied. Phase formation, microstructure, and dielectric properties were investigated. The ceramics exhibited a perovskite structure with cubic symmetry. Grain size of the ceramics increased with increasing the sintering temperature. The ceramics exhibited a dielectric relaxation like behavior with high dielectric constants over a wide temperature range

• Periodical: Key Engineering Materials (Volumes 675-676)
• Pages: 651-654
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.675-676.651
• Online since: January 2016
• Authors: Lalita Tawee, Kachaporn Sanjoom, Thanatep Phatungthane, Tawee Tunkasiri, Gobwute Rujijanagul, Denis Russell Sweatman
• Keywords: Ba(Zr_0.25Ti_0.75)O₃ (BZT), Dielectric Properties, Perovskite Structure

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