王松林,王泾文,王东生,孟广耀

• 1:铜陵学院机械工程系
• 2:中国科学技术大学材料科学与工程系

摘要(Abstract)：

YCrO3基固体氧化物燃料电池(SOFC)连接材料与LaCrO3基连接材料相比具有更高的化学稳定性,但却难以在空气中致密化烧结。利用溶胶-凝胶工艺在Y0.8Sr0.2CrO3-δ的B位掺杂10 mol%的Zn制备Y0.8Sr0.2Cr0.9Zn0.1O3-δ高活性粉体,在1400℃空气中烧结获得了96.6%的高致密度,并且仍然保持单一正交钙钛矿相结构,远高于同条件下Y0.8Sr0.2CrO3-δ的76.4%的烧结致密度。Y0.8Sr0.2Cr0.9Zn0.1O3-δ烧结样品遵从小极子导电机理,850℃空气中的电导率达到3.7 S.cm-1;热膨胀系数为9.4×10-6K-1,与YSZ相接近,表明Y0.8Sr0.2Cr0.9Zn0.1O3-δ是一种稳定易烧结的适合YSZ基SOFC的新型陶瓷连接材料。

关键词(KeyWords)： 铬酸钇;掺杂;烧结;溶胶-凝胶工艺;固体氧化物燃料电池

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(21171131);; 安徽省自然科学基金资助项目(1208085QE84)

作者(Author): 王松林,王泾文,王东生,孟广耀

DOI: 10.13289/j.issn.1009-6264.2013.02.004

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