Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Ionic Conductivity of Solid Solution Ceramics in The System of Stabilized ZrO2 Prepared by Self-Propagating High-Temperature Synthesis

  • Soh, Deawha (School of Electronics, Information& Communication Engineering, Myongji University) ;
  • Korobova, N. (Combustion Problems Institute, Kazakstan)
  • Published : 2002.04.01
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Abstract

The ionic conductivity of cubic solid solutions in the systems of CaO-$ZrO_2$, $Y_2O_3-ZrO_2$ prepared by SHS was examined. The higher conductivity appears to be related to a lower activation energy rather than to the number of oxygen vacancies dictated by composition. Conductivity-temperature data was obtained at 1000 $^{\circ}C$ in atmosphere of low oxygen partial pressure (~$10^{-40}$ atm) for $Y_2O_3-ZrO_2$ cubic solid solutions. The data indicated that these materials could be reduced, and the decree of reduction would be related with the measuring electric field.

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References

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