Structure evolution in hydrothermally processed (<100°C) BaTiO3 films

Elliott B. Slamovich, Ilhan A. Aksay

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102 Scopus citations

Abstract

Thin films of cubic BaTiO3 were processed hydrothermally at 40°-80°C by reacting thin layers of titanium organometallic liquid precursors in aqueous solutions of either Ba(OH)2 or a mixture of NaOH and BaCl2. All films (thickness ∼ 1 μ) were polycrystalline with grain sizes ranging from nano- to micrometer dimensions. BaTiO3 formation was facilitated by increasing [OH-], [Ba2+], and the temperature. The film structure was related to the nucleation and growth behavior of the BaTiO3 particles. Films processed at relatively low [OH-], [Ba2+], and temperatures were coarse grain and opaque, but increasing [OH-], [Ba2+], and temperature caused the grain size to decrease, resulting in transparent films.

Original languageEnglish (US)
Pages (from-to)239-247
Number of pages9
JournalJournal of the American Ceramic Society
Volume79
Issue number1
DOIs
StatePublished - Jan 1 1996

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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