Sedimentation of Barium Titanate Nanoparticles in a Suspension under Application of an Electric Field

Masashi Arimura; Teruhisa Makino; Kunitaka Fujiyoshi; Yoko Yamashita; Makoto Kuwabara

doi:10.4028/www.scientific.net/KEM.350.11

Paper Titles

Morphology Control of ZnO Particles in Liquid Phase
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Microstructure Control of Porous Alumina Film Using Aqueous Sol Containing Trehalose
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Sedimentation of Barium Titanate Nanoparticles in a Suspension under Application of an Electric Field
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Magneto-Optical Effects in Superlattice Assemblies of Ferromagnetic Nanosheets
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Liquid-Phase Synthesis of Carbon Nanotubes from Alcohols
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Synthesis of Highly Aligned Carbon Nanotubes in Liquid Phase
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The Characteristics of Fine-Sized LiMn_(12-X)/6Al_x/6O₄(0.05≤x≤2) Powders Prepared by Spray Pyrolysis
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Crystallinity of Barium Titanate Nanoparticles Synthesized by Sol-Gel Method
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Sintering and Dielectric Properties of BaTiO₃ Nano-Particle Prepared by Aerosol Plasma Pyrolysis Process
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Sedimentation of Barium Titanate Nanoparticles in a Suspension under Application of an Electric Field

Abstract:

Barium titanate nanoparticle (BT-NP) suspensions were prepared by dispersing sol-gel-derived BT-NPs in ethylene glycol monomethyl ether (EGMME) under sonication. When an electric field was applied, a part of the BT-NPs in a suspension was deposited on the cathode by electrophoretically deposition and most of the rest of the BT-NPs settled down towards the bottom of a container. The concentration of BT-NPs in the lower part of the container (Cbottom) increased with time until the Cbottom reached a specific concentration (threshold concentration) at which sedimentation of BT-NPs start to occur. The threshold concentration of the nanoparticles sedimentation gave a significant influence upon the aspect of a BT-NPs deposit formed on the cathode.