Electrical properties of defect-fluorite phase in the system R2O3-Ta2O5 (R Gd, Y, Er and Yb)

Shin Kim, Masatomo Yashima, Masato Kakihana, Masahiro Yoshimura

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The electrical properties of the new fluorite-type phase R0.8Ta0.2O1.7{right angle, 90 degree} ⊥0.3 in the system R2O3-Ta2O5 (R Gd, Y, Er and Yb) were studied. This fluorite phase had a p-type conductivity above 10-3 atm of oxygen partial pressure in the temperature range 650-1250 °C. In the oxygen partial pressure range between 10-4 and 10-21 atm, it showed an ionic conductivity which could occur by the diffusion of oxygen ions through oxygen vacancies.

Original languageEnglish
Pages (from-to)72-74
Number of pages3
JournalJournal of Alloys and Compounds
Volume192
Issue number1-2
DOIs
Publication statusPublished - 1993 Feb 23

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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