Microwave Synthesis of BaTiO3 from BaCO3 and TiO2

Yan Yi Liu; Wei Pan

doi:10.4028/www.scientific.net/KEM.336-338.669

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 336-338Microwave Synthesis of BaTiO3 from BaCO3 and TiO2

Microwave Synthesis of BaTiO₃ from BaCO₃ and TiO₂

Abstract:

BaTiO3 powder was synthesized from BaCO3 and TiO2 using a domestic microwave oven. The samples were synthesized under different temperatures with various holding times. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to examine the phase compositions and morphologies of the result samples. The main phase obtained at 950°C was BaTiO3, and the intermediate phases Ba2TiO4 and Ba4TiO9 were also detected. The pure, well-crystallized BaTiO3 powder could be obtained at 1050°C within 10 minutes and the particle size ranged from 300~500nm. In comparison with conventional synthesis, faster speed and finer grains could be achieved through microwave heating.