Synthesis and properties of SDC powders and ceramics for low temperature SOFC by stearic acid process

被引:5
|
作者
Wang, Zhicheng [1 ]
Weng, Wenjian [1 ]
Ji, Dengfeng [1 ]
Shen, Ge [1 ]
Du, Piyi [1 ]
Han, Gaorong [1 ]
机构
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
关键词
Stearic acid; SDC; Low crystallinity; High dense;
D O I
10.1007/s10832-007-9263-7
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Ce0.8Sm0.2O1.9 (SDC) powders were prepared by a novel solution combustion process using molten stearic acid as dispersive medium and reducing agent. The powders prepared with the molar ratio of NO3- to stearic acid at 1:1.5 exhibited a narrower distribution in sizes and the average agglomerate size is about 157 nm. The non-agglomerated particles are in the range 10-40 nm. The as-combusted powders prepared by the present method were pure oxides powder with low crystallinity, which exhibited excellent sintering properties, easily achieving high dense SDC ceramics with lager grains (0.85 mu m).
引用
收藏
页码:698 / 701
页数:4
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