The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
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Synthesis of Solid Electrolyte Nasicon by Solid State Reaction

  • Kim, Cheol-Jin (Dept. of Inorg. Mater. Eng. and Advanced Materials Research Institute) ;
  • Chung, Jun-Ki (Dept. of Inorg. Mater. Eng. and Advanced Materials Research Institute Gyeongsang National. Univ) ;
  • Lim, Sung-Ki (Dept. of Industria Chemistry, KonKuk Univ) ;
  • Rhee, Meung-Ho (Korea Automative Technology Institute, Yongjeong-Lee, Pungse-myun)
  • Published : 1996.03.01
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Abstract

Solid electroyte nasion was synthesized by the optimized solid state reaction minimizing the volume fraction of secondary $ZrO_2$ and glassy phases. To compensate for the evaporation of Na and P during heat-treatment, excess Na and P were added to the starting composition $Na_{1+x} Zr_2 Si_x P_{d-x} O_{12}$ (x=2.1). Phases pure nasicon comparable in volume fraction to the one obtaied from sol-gel process were synthesized after the reaction at $1100~1150^{\circ}C$,$ P_{O2}>=0.1-0.15 $$ZrO_2$ increased with the heat-treatment time due to the decomposition of nasicon phase and that of glassy phase increased as partial oxygen pressure decreased. The synthesized nasion showed a good electrical conductivity of $-1{\times}10^{-2}({\omega}{\cdot}cm)^{-1}$ at $350^{\circ}C$.

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References

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