| 摘要 |
This invention provides an electrolyte sheet for solid oxide fuel cells, characterized in : being formed by a doctor blade method or an extrusion molding method; being a scandia partially stabilized zirconia sheet, wherein 4 mol % to 6 mol % scandia is doped in a solid zirconia; a crystal structure thereof has a polycrystalline structure having a main body of tetragonal and including monoclinic phase, wherein a ratio of monoclinic phase (M), calculated by below described formula (1) from a diffraction peak intensity using X-ray diffraction, is 1 % to 80 %; and a Weibull modulus (m) thereof is not less than 10: a ratio of monoclinic phase (M: %) = [{monoclinic (1, 1, 1) + monoclinic (-1, 1, 1)}/{tetragonal and cubic (1, 1, 1) + monoclinic (1, 1, 1) + monoclinic (-1, 1, 1)}] x 100 ····· (1). |
