Enhanced ionic conductivity of aluminum tungstate by crystallographic orientation in a strong magnetic field

Cem E. Özbilgin, Kiyoshi Kobayashi, Shinji Tamura, Nobuhito Imanaka, Tohru S. Suzuki*

*この研究の対応する著者

研究成果: Article査読

抄録

The ionic conduction of multiply charged ions, rather than singly charged ions, is beneficial for energy storage and sensor applications. The low mobility of multiply charged ions is one important obstacle to the implementation of these applications. Chemical methods, such as doping and solid solution formation, have been used to improve ionic conductivity. However, the apparent performance of ceramic electrolytes can be improved by the crystallographic alignment of anisotropic grains. In this study, crystal-oriented aluminum tungstate ceramics were processed by slip casting in a strong magnetic field. The b-axis- and c-axis-oriented aluminum tungstate ceramics can be produced by this technique. The orientation of grains along the b-axis could enhance ionic conductivity by at least 1.77 times compared to that of a randomly oriented sample and 2.13 times compared to that of the c-axis-oriented sample. The results of this study suggest that this method can improve the ionic conductivity of an anisotropic material using polycrystalline processing instead of difficult single-crystal synthesis techniques.

本文言語English
ページ(範囲)6364-6372
ページ数9
ジャーナルJournal of the American Ceramic Society
104
12
DOI
出版ステータスPublished - 2021 12
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 材料化学

フィンガープリント

「Enhanced ionic conductivity of aluminum tungstate by crystallographic orientation in a strong magnetic field」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル