中文摘要：

在中温固体氧化物燃料单电池制备过程中,用聚乙烯吡咯烷酮包裹改性的石墨粉体为造孔剂,以8%（摩尔分数）Y2O3稳定的ZrO2（8%in mole yttria stabilized zirconia,YSZ）粉体＋石墨造孔剂为支撑层原料,与自制的水系流延YSZ电解质薄膜一起共压,制备了YSZ＋石墨–YSZ薄膜复合体,在1 470℃下共烧4 h后获得高孔隙率YSZ–高致密YSZ薄膜共烧复合体。研究了不同溶剂体系中石墨含量和粒度对共烧体的影响。结果表明：选用粒径为6μm以下的石墨粉体作造孔剂能获得无开裂的多孔YSZ–YSZ薄膜共烧体,其共烧体为双层结构,层间结合紧密、结构均匀,孔隙率高达68%（体积分数）。在造孔剂的含量变化与材料烧成收缩率的关系中,造孔剂含量存在1个最佳含量值,当造孔剂含量在最佳值附近时,制备的共烧复合体质量最好。该最佳含量值随造孔剂颗粒尺寸大小不同而变化。

英文摘要：

In the processing of the preparation for the inter-temperature solid oxide fuel cell,the graphite powder modified with coat-ing by polyvinyl pyrrolidone（PVP） was used as pore-forming,8% in mole yttria-stabilized zirconia（YSZ） and graphite powders were used as the raw materials of the support layer.The YSZ added graphite–YSZ film composite was prepared via the co-pressing of the support layer and the aqueous tape casting YSZ electrolyte film,and the composite co-fired at 1 470 ℃ for 4 h to obtain high porosity YSZ support layer–high density YSZ film composite.The influence of the amount and particle size of the graphite in different solvent on the co-firing characteristic of composite was investigated.The results show that without cracking porous YSZ–YSZ film co-firing composite can be obtained via selecting the pore-forming graphite powder with a particle size less than 6 μm,and its structure is dou-ble-layer and uniform,layer tightly,and the porosity of porous YSZ is 68%.The results also indicate that there exists an optimal amount of pore-forming graphite according to the relationship between the amount of pore-forming and the shrinkage of the material.And the optimal amount of pore-forming graphite changes with its particle size.