Resumo

FERNANDEZ PERDOMO, CLAUDIA; RIVERA FIGUEROA, EDISON  e  RODRIGUEZ PAEZ, JORGE. BaTiO₃ OBTAINED BY COPRECIPITATION METHOD. Dyna rev.fac.nac.minas [online]. 2008, vol.75, n.156, pp.223-230. ISSN 0012-7353.

The barium titanate (BaTiO₃) is a material with very important ferroelectrics properties. It is usually obtained through the mixture of oxides, TiO₂ and BaCO₃, this method gives big particles and it requires high temperatures for the synthesis of this compound. In this work, we used the coprecipitación method to obtain BaTiO₃ with a smaller particle size and a low temperature of synthesis. The most appropriate parameters for the synthesis, pH, concentration precursors and temperature, were determined. The ceramics powders were characterized with ATD/TG, DRX, FTIR and MET.

Palavras-chave : BaTiO; Characterization; Coprecipitación; Synthesis.

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