| 摘要 |
PURPOSE:To provide a separator for a solid electrolyte fuel cell having an excellent characteristic by baking iron or an iron group alloy and heat resistant inorganic compound or a compound formable thereof in the nonoxidation atmosphere or in a vacuum. CONSTITUTION:Iron and/or an iron group alloy of Fe-Ni-Cr alloy or the like and a heat resistant inorganic compound such as alumina and rare earth conductive ceramic or a compound formable thereof are mixed in a powder state of 0.05 to 500mum grain size and pressure molded by a static hydraulic press or the like. Next, baking is performed at 1100 to 1500 deg.C in the nonoxidation atmosphere or in a vacuum to obtain a separator 44. In this sintered material with high accuracy, by changing ratio of a metal material excellent in heat resistance, corrosion resistance and moldability to an inorganic compound, a thermal expansion characteristic can be controlled while maintaining good electric conductivity, to stabilize a gas seal pressure by enabling each battery member to firmly connect together, and a battery characteristic can be improved. |
