火花等离子烧结与常规烧结联合制备纳米结构DyxCe1-xO2-x/2(x=0.15和0.2)电解质

2005 4th International Symposium on Environmentally Conscious Design and Inverse Manufacturing Pub Date : 2005-12-12 DOI:10.1109/ECODIM.2005.1619380

T. Kobayashi, T. Mori, Y. Wang, D. Ou, F. Ye, H. Kobayashi, J. Drennan

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引用次数: 0

摘要

掺铈(CeO2)化合物是萤石型氧化物，在氧化气氛中表现出比钇稳定氧化锆更高的氧化物离子电导率。因此，将这些材料应用于固体氧化物燃料电池(sofc)的“低温”(500℃-650℃)操作方面显示出了相当大的兴趣。为了提高镝(Dy)掺杂CeO2的导电性，采用碳酸盐共沉淀法合成了烧结性纳米粉体。采用火花等离子烧结(SPS)和常规烧结(CS)相结合的方法制备了致密烧结体。

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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

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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2005 4th International Symposium on Environmentally Conscious Design and Inverse Manufacturing

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