Diffusion Paths of Mobile Ions Studied by Precise Structure Analysis of Powder Diffraction Data Measured in situ at High Temperatures

DOI Web Site 4 Citations 126 References
  • YASHIMA Masatomo
    Department of Materials Science and Engineering, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology

Bibliographic Information

Other Title
  • 高温精密結晶構造解析によるイオン伝導性材料における可動イオン拡散経路の研究
  • [日本結晶]学会賞受賞論文 高温精密結晶構造解析によるイオン伝導性材料における可動イオン拡散経路の研究
  • ニホン ケッショウ ガッカイショウ ジュショウ ロンブン コウオン セイミツ ケッショウ コウゾウ カイセキ ニ ヨル イオン デンドウセイ ザイリョウ ニ オケル カドウ イオン カクサン ケイロ ノ ケンキュウ

Search this article

Description

The present paper is a brief review of our recent works on the crystal structures, structural disorders and ion-diffusion paths of various ionic and mixed conductors. Diffusion paths along the <100> directions are observed in the fluorite-type ionic conductors such as δ-Bi1.4Yb0.6O3, Ce0.93Y0.07O1.96, Y0.785Ta0.215O1.715 and α-CuI. In the prerovskite-type and double-prerovskite-type conductors, the mobile oxide ions move along the <100> directions near the stable positions and along <110> around the midway of diffusion pathway. The cubic prerovskite-type and double-prerovskite-type conductors exhibit three- and two-dimensional networks of diffusion pathways, respectively. K2NiF4-type conductor has a two-dimensional network of diffusion pathway through interstitial oxide ions. The oxide ions in apatite-type conductors diffuse along the hexagonal c-axis. The diffusion paths of two lithium-ion conductors are also presented.

Journal

Citations (4)*help

See more

References(126)*help

See more

Details 詳細情報について

Report a problem

Back to top