Fabrication of BaTiO3 nanoparticles and its formation mechanism using the high temperature mixing method under hydrothermal conditions

Yang Cao, Kongjun Zhu, Jinsong Liu, Jinhao Qiu

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Barium titanate (BaTiO3) single-crystalline nanoparticles have been prepared via high temperature mixing method (HTMM) under hydrothermal conditions. The crystallized products were characterized by X-ray diffraction (XRD), filed emission scanning electron microscopy (FESEM), X-ray fluorescence (XRF), Raman spectra, transmission electron microscopy (TEM). The BaTiO 3 nanoparticles can be prepared at dilute KOH as compared with the method mixed at room temperature. The results show that the stoichiometric BaTiO3 nanoparticles were synthesized at [Ba/Ti]solution = 1. The high temperature will significantly narrow the solubility difference between the barium and titanium sources and leads to a burst nucleation from the solution. The defect mechanism is used to illustrate the time-dependent transformation from cubic to tetragonal phase.

Original languageEnglish
Pages (from-to)853-858
Number of pages6
JournalAdvanced Powder Technology
Volume25
Issue number3
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Barium titanate
  • Ceramic nano-powders
  • Formation mechanism
  • HTMM
  • Tetragonal

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanics of Materials

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