| 摘要 |
Provided are a composite ceramic powder which is excellent in distribution at nanometer level, controllability of composition, formation of oxide ions, and electronic conductivity; a process for the production of same, and a solid oxide fuel cell. The composite ceramic powder is a powder which contains either an oxide represented by formula: A1-xBxC1-yDyO3 or nickel oxide, and zirconia and which is produced by adding a zirconia acidic dispersion containing both yttria-stabilized zirconia particles and either ions of one or more elements selected from the group consisting of the elements defined for A, B, C and D or nickel ions to an alkali solution to form a precipitate via neutralization, and heat-treating the precipitate at 200°C or above. In the formula, A is one or two elements selected from the group consisting of La and Sm; B is one or more elements selected from the group consisting of Sr, Ca and Ba; C is one or two elements selected from the group consisting of Co and Mn; D is one or two elements selected from the group consisting of Fe and Ni; 0.1 = x = 0.5 and 0 = y = 0.3. |
