| 摘要 |
PURPOSE:To produce a conductive ceramic improved in conductivity by forming a perovskite type oxide having a composition of specific formula. CONSTITUTION:Farious raw material powder of La2O3, Y2O3, CaCO3, SrCO3, CeO2, Yb2O3, Mn2O3, CoO, Fe2O3, ZrO2 and NiO are weighed and mixed each other so as to give a prescribed ratio. The mixture is calcined, mixed with a binder, press-molded and subsequently calcined at 1300-1700 deg.C in the atmosphere to provide a conductive ceramic comprising a perovskite type complex oxide of the formula (A is one or more kind of Y, Ce and Yb; B is one or more kinds of Ba, Sr and Ca; C is one or more kinds of Co, Fe, Ni, Ce and Zr; 0<x<=0.5; 0.1<=y<=0.6; 0.9<z<=1; 0<=u<=0.5; 0.0<v<=1). |
