Analysis of Composite Structures on Barium Titanate Fine Particles using Synchrotron Radiation

Takuya Hoshina, Hirofumi Kakemoto, Takaaki Tsurumi, Satoshi Wada, Masatomo Yashima, Kenichi Kato, Masaki Takata

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The crystal structures of barium titanate (BaTiO3) fine particles with a size around 140 nm were investigated using a synchrotron radiation X-ray diffraction method. The observed diffraction pattern was analyzed by Rietveld method assuming several models. As a result, it is found that the BaTiO3 fine particles have composite structures include (a) a tetragonal region with a constant c/a ratio, (b) a tetragonal region with gradient c/a ratios and (c) a cubic region. In order to estimate these structures, the partial profile relaxation technique was applied in the Rietveld refinement. It is considered that the composite structure is important for the size effect on BaTiO3 fine particles.

本文言語English
ページ(範囲)239-242
ページ数4
ジャーナルKey Engineering Materials
301
DOI
出版ステータスPublished - 2006 1 1
外部発表はい

ASJC Scopus subject areas

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

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