Oxide-ion transport in gadolinium zirconate - Titanates under high pressure

Hitoshi Takamura, Hirofumi Kakuta, Atsunori Kamegawa, Masuo Okada, Harry L. Tuller

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

The oxide-ion conduction of gadolinium zirconate - titanates, Gd 2(Ti1-xZrx)2O7 (GTZ), has been investigated under high pressure in the range of 2 to 6 GPa with the aid of a cubic-anvil-type apparatus. For these pyrochlore compounds, the oxide-ion conductivity at elevated temperatures in the range of 750 to 960°C decreased with increasing pressure, indicating the presence of a positive activation volume, ΔV. The activation volumes ΔV of GZ (x = 1.0) and GTZ (x = 0.95) were 2.0 and 1.3 cm3/mol, respectively, at 750°C and decreased with increasing temperature.

本文言語English
論文番号K2.10
ページ(範囲)63-67
ページ数5
ジャーナルMaterials Research Society Symposium Proceedings
835
出版ステータスPublished - 2005 6 20
イベントSolid State Ionics - 2004 - Boston, MA, United States
継続期間: 2004 11 292004 12 2

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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