| 摘要 |
PURPOSE:To efficiently obtain the titled easily sinterable, uniform feedstock powder which exhibits a high performance by preparing a precipitate in order by a wet method in a manufacturing of the feedstock powder of solid solution consisting of a perovskite structural composite oxide having a specific structure and a metallic oxide, and calcining the precipitate. CONSTITUTION:The feedstock powder of the solid solution consisting of the perovskite structural composite oxide indicated by a general formula (Ba1-xAx)BO3-aMO (A represents one or more of metals selected from Pb, Ca, Sr, Ce and La; B represents one or more of metals selected from Ti, Zr, Sn, Zn, Nb, Mg, Ni and Co; MO represents one or more of metallic oxides selected from MnO2, Nb2O5, Ta2O5, Ca2O3 and Al2O3; and 0<=x<1; 0<a<0.2) and the metallic oxide is manufactured. At that time, one or more of each ingredient solutions of the Ba ingredient, A ingredient, B ingredient and M ingredient is brought into contact with one or more of precipitant solutions at a multistage, hence the precipitate is formed in order, and is calcined.
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