Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Sintering Behavior of Nano-sized Gd2O3-doped CeO2 Powder Prepared by A High Energy Ball Milling

고에너지 볼밀링에 의해 제조된 Gd2O3-doped CeO2 나노분말의 소결 거동에 관한 연구

  • Ryu, Sung-Soo (Dept. of Engineering Ceramic, Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Hyung-Tae (Dept. of Engineering Ceramic, Korea Institute of Ceramic Engineering and Technology)
  • 류성수 (요업기술원 이천분원 구조세라믹부) ;
  • 김형태 (요업기술원 이천분원 구조세라믹부)
  • Published : 2008.08.28
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Abstract

$Gd_2O_3$-doped $CeO_2$(GDC) solid solutions have been considered as a promising materials for electrolytes in intermediate-temperature solid oxide fuel cells. In this study, the nano-sized GDC powder with average panicle size of 69nm was prepared by a high energy ball milling process and its sintering behavior was investigated. Heat-treatment at $1200^{\circ}C$ of nano-sized GDC powder mixture led to GDC solid-solution. The enhanced densification over 96% of relative density was obtained after sintering at $1300^{\circ}C$ for 2h. It was found that the sinterability of GDC powder could be significantly improved by the introduction of a high energy ball milling process.

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References

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