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Fabrication of Nano-structured DyxCe1-xO2-x/2(x=0.15 and 0.2) Electrolytes Using Combined Process of Spark Plasma Sintering and Conventional Sintering

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7 Author(s)
Kobayashi, T. ; Nat. Inst. for Mater. Sci. ; Mori, T. ; Wang, Y. ; Ou, D.R.
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Doped ceria (CeO2) compounds are fluorite-type oxides that show oxide ionic conductivity higher than yttria-stabilized zirconia in oxidizing atmosphere. As a consequence of this, considerable interest has been shown in application of these materials for "low" (500deg-650degC) temperature operation of solid oxide fuel cells (SOFCs). To improve the conductivity in dysprosium (Dy) doped CeO2 , sinterability nanopowders were synthesized via carbonate coprecipitation method. The dense sintered bodies were fabricated using a combined method of spark plasma sintering (SPS) and conventional sintering (CS)

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Environmentally Conscious Design and Inverse Manufacturing, 2005. Eco Design 2005. Fourth International Symposium on

Date of Conference:

12-14 Dec. 2005