Comparative study of titanate syntheses by the organic steric entrapment method

Benjamin R. Rosczyk, Sang Jin Lee, Waltraud M. Kriven

Research output: Contribution to journalArticlepeer-review

Abstract

Homogeneous and stable, one-, two-, and three-component titanate powders can be synthesized by an ethylene glycol or polyvinyl alcohol steric entrapment method. The powders synthesized were titania (TiO2), and titanates of barium (BaTiO3), strontium (SrTiO3), aluminum (Al2TiO5), dysprosium (Dy2O5), calcium (CaTiO3) as well as lead zirconate titanate of stoichiometry Pb(Zr0.44Ti0.56)O3 or “PZT.” Titanium isopropoxide and other metal ionic salts were dissolved in ethylene glycol without any precipitation, where the organic carrier, ethylene glycol, sterically entrapped and immobilized the metal ions. At the optimum amount of polymer, the metal ions were dispersed in solution and a homogeneous polymeric network was formed. The ternary PZT compound was prepared by an aqueous route, where water soluble Pb and Zr cations were dissolved in a polyvinyl alcohol solution containing titania nanoparticles around which the aqueous phase precipitated upon water removal. This method is a relatively simple process for making any titanate oxides of complex chemistry.

Original languageEnglish (US)
Pages (from-to)200-209
Number of pages10
JournalInternational Journal of Applied Ceramic Technology
Volume19
Issue number1
DOIs
StatePublished - Jan 1 2022

Keywords

  • lead zirconate titanate
  • nanoparticulates
  • strontium titanate
  • synthesis
  • titanates

ASJC Scopus subject areas

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry

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