燃料电池阳极材料的物理机械性能研究

Physical and mechanical properties of NiO/SDC materials for intermediate temperature solid oxide fuel cells

以NiO和钐掺杂氧化铈(SDC)为原料,通过粉末冶金工艺制备出用于燃料电池的NiO/SDC阳极烧结体和Ni/SDC阳极材料,并测试了其孔隙率、孔径分布及电导率等物理机械性能。结果表明,NiO/SDC阳极材料性能依赖于其制备工艺和原料粉体性能,为获得具有良好综合性能的燃料电池阳极材料,必须对原料粉体及烧结工艺参数进行优化设计。

NiO/SDC materials for solid oxide fuel cell(SOFC) anode applications were prepared from NiO and samaria doped ceria(SDC) powders by powder metallurgical process,and the physical and mechanical properties of the NiO/SDC materials and the Ni/SDC cermets were investigated. The test results have shown that the microstructure and properties of the NiO/SDC materials as well as the Ni/SDC cermets depend not only on the manufacturing process parameters, but also greatly on the properties of the starting powders and Ni contents in the NiO/SDC materials. The present work has shown that the composition and the process parameters must be properly selected to optimize the microstructure and physical and mechanical properties of the NiO/SDC anode materials.