Low temperature synthesis of tetragonal BaTiO3 by using molten salt

Nobuhiro Kumada, Hideyuki Ogiso, Satoshi Wada, Yoshinori Yonesaki, Takahiro Takei, Nobukazu Kinomura, Takashi Iijima, Takayuki Watanabe

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

Tetragonal BaTiO3 was prepared by reaction of a layered K 2Ti2O5 and mixed barium salts (BaCl2 + Ba(NO3)2) at above 700°C. The morphology of the particle was cubic shape and the particle size of the products prepared at 700-1000°C was ∼10 μm, and that of the products prepared at higher temperatures (1100-1200°C) was smaller than that of the products prepared at 700-1000°C. From the chemical analysis no potassium atom was detected and the Ba/Ti ratio in the tetragonal BaTiO3 was 1.00. In the cubic particle of the tetragonal BaTiO3 surface 90° domain boundaries were observed. Lattice parameters and Curie temperature of the tetragonal BaTiO3 were a = 3.995(1) and c = 4.036(1) Å and 130°C, respectively.

本文言語英語
ページ(範囲)738-740
ページ数3
ジャーナルJournal of the Ceramic Society of Japan
118
1380
DOI
出版ステータス出版済み - 8 2010
外部発表はい

All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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