Publicação: Effect of Nb on barium titanate prepared from citrate solutions
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The influence of the addition of dopants on the microstructure development and electrical properties of BaTiO3 doped with 0.2, 0.4, 0.6, 0.8 mol% of Nb and 0.01 mol% of Mn based compounds was studied. Doped barium titanate was prepared using the polymeric precursor method from citrate solutions. The powders calcined at 700°C for 4 hours were analysed by infrared (IR) spectroscopy to verify the presence of carbonates, and by X-ray diffraction (XRD) for phase formation. The phase composition, microstructure and dielectric properties show a strong dependence on the amount of added niobium.
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BaTiO 3, Dielectric properties, Microstructure, Nb-doped, Organic precursor, Sintering
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Inglês
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Science of Sintering, v. 34, n. 1, p. 63-71, 2002.
