Rapid mechanochemical synthesis of fine barium titanate nanoparticles

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Abstract A rapid mechanochemical synthesis of fine barium titanate (BaTiO 3 ) nanoparticles is reported. Mechanical forces such as compression and shear stress were repeatedly applied on a mixture of BaCO 3 and TiO 2 , using an attrition type milling apparatus. The formation of BaTiO 3 was observed in the subsequent milling, and its synthesis was completed after only 12 min. The particle size of the synthesized BaTiO 3 was mostly of several 10 nm. The amount of hydroxide ions incorporated into the BaTiO 3 nanoparticles was less than 0.3 wt.%.

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