| abstract |
Production method of dielectric ceramic composition including a main component of (Ba 1-x-y Sr x Ca y ) m (Ti 1-z Zr z )O 3 comprises steps of preparing materials of a first main component of (Ba 1-x1-y Sr x1 Ca y ) m (Ti 1-z Zr z )O 3 and a second main component of (Ba 1-x2-y Sr x2 Ca y ) m (Ti 1-z Zr z )O 3 , obtaining a material of the main component by mixing materials of the first and second main component, and fixing the material of the main component. When molar numbers of main component, first main component and second main component are 1, “a” and “b”, respectively, a+b=1, a:b=20:80 to 80:20, 0.20≦x≦0.40, x=(ax1+bx2), x1/x2≧1.05, 0≦y≦0.20, 0≦z≦0.30 and 0.950≦m≦1.050. By the present invention, the dielectric ceramic composition in which capacitance change rate is, set to the predetermined range with respect to an absolute value of capacity temperature characteristic, which is large, within wide temperature range can be obtained. |