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

M. Matsuda, M. Miyake, T. Umegaki, K. Yamashita

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Although the deposition of BaTiO3, known as a ferroelectric compound with spontaneous dipole moments, has never occurred in either propanol and acetylacetone, these mixtures were found to enhance the deposition of the powders on a cathode. The present study carried out the systematic investigation of the solution-mixing effect of propanol and acetylacetone on the electrophoretic deposition of BaTiO3. The optimum mixing ratio for the deposition was 50-70 vol% of propanol, while a depressed migration of BaTiO3 powders was observed in the mixed solutions. Therefore, it was considered that the enhanced deposition was attributed to the coagulation of the BaTiO3 powders on the cathode. The deposition characteristics varied with the kind of alcohol used showed that a more highly enhanced deposition was achieved with alcohols having longer side-chains such as octanol. An intertwinement between the side-chains in the alcohols was considered to have an effect on the coagulation of the BaTiO3 powders.

Original languageEnglish
Pages (from-to)4235-4238
Number of pages4
JournalJournal of Materials Science
Volume39
Issue number13
DOIs
Publication statusPublished - Jul 1 2004

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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