Oxygen diffusion in rare-earth doped BaTiO3 ceramics

Isao Sakaguchi, Sakyo Hirose, Tomohiro Furuta, Ken Watanabe, Keisuke Kageyama, Shunichi Hishita, Hajime Haneda, Naoki Ohashi

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

1 引用 (Scopus)


The effect of the surface preparation in samarium doped semiconducting barium titanate [(Ba1-xSmx)TiO3] ceramics with (Ba, Sm)/Ti ratio of 1.000 was studied by means of isotope tracer technique using a secondary ion mass spectrometer. The surfaces of specimens were prepared with the chemical mechanical polishing (CMP) with colloidal silica slurry or the mechanical polishing (MP) with diamond paste. The oxygen diffusion coefficients obtained in the CMP samples were small compared to those in the mechanical polished samples. This fact suggests that the surface prepared with CMP has less oxygen defect concentration. Moreover, it was also indicated that high temperature treatment over 1000 °C is required for annihilation of defects formed by MP. The oxygen diffusion study used CMP sample brings the useful information on the oxygen defect chemistry in Sm doped BaTiO3.

ホスト出版物のタイトルElectroceramics in Japan XVI
出版物ステータス出版済み - 1 1 2014
イベント32nd Electronics Division Meeting of the Ceramic Society of Japan - Tokyo, 日本
継続期間: 10 26 201210 27 2012


名前Key Engineering Materials


その他32nd Electronics Division Meeting of the Ceramic Society of Japan

All Science Journal Classification (ASJC) codes

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

フィンガープリント Oxygen diffusion in rare-earth doped BaTiO<sub>3</sub> ceramics' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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    Sakaguchi, I., Hirose, S., Furuta, T., Watanabe, K., Kageyama, K., Hishita, S., Haneda, H., & Ohashi, N. (2014). Oxygen diffusion in rare-earth doped BaTiO3 ceramics. : Electroceramics in Japan XVI (pp. 189-193). (Key Engineering Materials; 巻数 582). https://doi.org/10.4028/www.scientific.net/KEM.582.189