采用固相反应法合成一系列样品Sm0.9Ca0.1Al1-xZnxO3-δ(x=0,0.03,0.05).利用X射线衍射和扫描电镜研究样品的结构、微观形貌和烧结性能,用交流阻抗谱测量Sm0.9Ca0.1Al0.97Zn0.03O3-δ在500～1 000 ℃的电导性能.结果表明:在1 650 ℃烧结24 h可以获得单相样品,Zn2+在B位的固溶度为3%～5%,样品的相对密度为92.3%.Ca、Zn双掺杂能大大提高样品的电导性能,800 ℃时总电导率为0.39 S/m,ln((T)与1/T关系曲线呈一折线,高温电导活化能小于低温电导活化能,710 ℃以上的电导活化能为0.66 eV,710 ℃以下的电导活化能为1.18 eV.
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