Microwave-hydrothermal synthesis of nano-sized Sn2+-doped BaTiO3 powders and dielectric properties of corresponding ceramics obtained by spark plasma sintering method

Yahong Xie, Shu Yin, Takatoshi Hashimoto, Hisamichi Kimura, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Ternary oxides containing Sn2+ are rare and difficult to prepare using solid state reaction due to disproportionation of Sn2+ at high temperature. In this paper, nanoparticles of barium titanate doped with different amounts of Sn2+ consisting of single phase perovskite structure were successfully synthesized for the first time by using a microwave-assisted solvothermal reaction. The particle sizes were about 20-40 nm in diameter and increased with increasing the amount of doped tin. Solidified ceramic bodies were obtained using a spark plasma sintering method under argon atmosphere avoiding the disproportionation and oxidation of Sn2+ in the air. The grain size and dielectric constant of the sintered body decreased with increasing the amount of doped tin.

Original languageEnglish
Pages (from-to)4834-4839
Number of pages6
JournalJournal of Materials Science
Volume44
Issue number18
DOIs
Publication statusPublished - 2009 Sep 1

ASJC Scopus subject areas

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

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