Otro
Effect of Nb on barium titanate prepared from citrate solutions
Registro en:
Science of Sintering, v. 34, n. 1, p. 63-71, 2002.
0350-820X
10.2298/SOS0201063S
2-s2.0-33644569303.pdf
2-s2.0-33644569303
Autor
Stojanović, B. D.
Foschini, C. R.
Zaghete, M. A.
Vieira, F. O S
Paiva-Santos, C. O.
Cilense, M.
Varela, José Arana
Resumen
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.