BaTiO3 cubic synthesis by chemical ways
DOI:
https://doi.org/10.17533/udea.redin.14648Keywords:
coprecipitation, BaTiO3, cubic phase, polymeric precursorAbstract
In this work ceramic powders of barium titanate (BaTiO3) were synthesized by two chemical methods: coprecipitation and polymeric precursor (Pechini). These methods, highly reproducible and reliable, allowed to obtain nanosized BaTiO3 particles (<200 nm) with high chemical purity, at a temperature of 650 °C; moreover, the cubic phase of BaTiO3 was stabilized at room temperature. We conducted a brief discussion on the mechanisms of particle formation and an adequate description of the synthesis processes. The powders were characterized using infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermal analysis (DTA/TGA) and transmission electron microscopy (TEM).
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