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  • Title: Ultrasonic de-agglomeration of barium titanate powder.
    Author: Marković S, Mitrić M, Starcević G, Uskoković D.
    Journal: Ultrason Sonochem; 2008 Jan; 15(1):16-20. PubMed ID: 17845864.
    Abstract:
    BaTiO3 (BT) powder, with average particle size of 1.4 microm, was synthesized by solid-state reaction. A high-intensity ultrasound irradiation (ultrasonication) was used to de-agglomerate micro-sized powder to nano-sized one. The crystal structure, crystallite size, morphology, particle size, particle size distribution, and specific surface area of the BT powder de-agglomerated for different ultrasonication times (0, 10, 60, and 180 min) were determined. It was found that the particles size of the BT powder was influenced by ultrasonic treatment, while its tetragonal structure was maintained. Therefore, ultrasonic irradiation can be proposed as an environmental-friendly, economical, and effective tool for the de-agglomeration of barium titanate powders.
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