Electrophoretic coagulation behavior of ferroelectric barium titanate powders in mixed solutions of alcohol and acetylacetone

Matsuda, Motohide; Miyake, Michihiro; Umegaki, Takao; Yamashita, Kimihiro

doi:10.1023/b:jmsc.0000033404.14266.ef

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…An effective non‐aqueous suspension for the EPD of BaTiO 3 has been developed to fabricate the BaTiO 3 thick films 10,11. We found that the high stability of the BaTiO 3 nanoparticles in isopropyl alcohol was maintained among the various solvent systems investigated.…”

Section: Resultsmentioning

confidence: 94%

Direct Assembly of BaTiO₃‐Poly(methyl methacrylate) Nanocomposite Films

Kim

Lee

Kim

et al. 2006

Macromol. Rapid Commun.

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Summary: This study examines the use of a PMMA‐mediated assembly of BaTiO3 nanoparticles directly onto Cu electrodes under an electric field. The compatibility of the interface between BaTiO3 nanoparticles and PMMA in a mixed organic solvent system enables the homogeneous dispersion of nanoparticles in a solid polymer matrix. This results in the effective packing of particles, which is desirable from the point of view of achieving a high dielectric constant in the composite. In this study, three‐phase Al/BaTiO3/PMMA nanocomposite films from stable colloidal suspensions containing aluminium nitrate salts were also designed using an electrodeposition process. The simultaneous formation of Al metallic inclusions in the BaTiO3 nanoparticles in the PMMA matrix significantly improved the dielectric constant of nanocomposite films.HRTEM micrographs of BaTiO3 (240 nm)/PMMA and magnified view of BaTiO3 (50 nm)/PMMA/Al(NO3)3 · 9H2O composite particles in each suspension, and FESEM micrograph of electrodeposited three‐phase nanocomposite film.magnified imageHRTEM micrographs of BaTiO3 (240 nm)/PMMA and magnified view of BaTiO3 (50 nm)/PMMA/Al(NO3)3 · 9H2O composite particles in each suspension, and FESEM micrograph of electrodeposited three‐phase nanocomposite film.

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Section: Resultsmentioning

confidence: 94%