Effect of Nb on barium titanate prepared from citrate solutions

Autor: Stojanović Biljana D., Foschini C.R., Zaghete M.A., Vieira F.O.S., Paiva-Santos C.O., Cilense M., Varela J.A.
Jazyk: angličtina
Rok vydání: 2002
Předmět:
Zdroj: Science of Sintering, Vol 34, Iss 1, Pp 63-71 (2002)
Druh dokumentu: article
ISSN: 0350-820X
DOI: 10.2298/SOS0201063S
Popis: 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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