采用柠檬酸-硝酸盐燃烧法制备了Sm0.1Ce0.79Ca0.1M0.01O1.9 (M=Fe、Co、Ni)及未掺杂的Sm0.1Ce0.8-C30.1O1.9电解质粉体,将干压成型后的素坯于设定温度下烧结得到电解质陶瓷片,利用XRD和SEM分别对样品的物相和微观结构进行了表征,得到一些可以参考的研究结果.结果表明,经700℃热处理3h后的粉体以及1250℃高温煅烧的陶瓷体,均呈现单一的立方萤石相结构.SEM显示,过渡金属掺杂的3个样品素坯经过1250℃烧结5h后已经致密,阿基米德排水法测定其相对密度均在95％以上,表明Fe、Co、Ni的掺杂对改善SDC基电解质材料的烧结活性有明显的作用,Fe、Ni元素的添加对材料的电导率无明显影响.
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