Solid oxide fuel cells (SOFCs) have emerged as high temperature fuel cell technology operating at temperatures around 1000 °C. Lowering the operating temperature enables the use of cheaper materials while maintaining high power outputs. Electrolytes with ABO₃-type perovskite structure are good ionic conductors and are promising materials for SOFCs. In this study, a systematic investigation on the synthesis and characterization of Mg- substituted YAlO₃ system has been performed. The samples have been synthesized by wet chemical citrate gel route and the electrical conductivity measurements have been conducted in air between 300 and 800 °C. Effect of composition of the phases on total conductivity has been analyzed employing X-ray diffraction. The influence of microstructure on total conductivity has been studied using scanning electron microscopy and orientation imaging microscopy.

固态氧化物燃料电池（SOFC）已作为在1000°C左右的温度下运行的高温燃料电池技术而出现。降低工作温度可以使用更便宜的材料，同时保持高功率输出。具有ABO ₃型钙钛矿结构的电解质是良好的离子导体，是用于SOFC的有前途的材料。在这项研究中，对Mg取代的YAlO ₃的合成和表征进行了系统的研究系统已执行。通过湿式柠檬酸化学凝胶法合成了样品，并在300至800°C的空气中进行了电导率测量。已经使用X射线衍射分析了相组成对总电导率的影响。已经使用扫描电子显微镜和取向成像显微镜研究了微结构对总电导率的影响。