| 简介 |
A dielectric ceramic composition contains a substance represented by general formula 100(Ba1-xCax)mTiO3+aMnO+bCuO+cROn (wherein the coefficients 100, a, b, and c each represent mols; R represents at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; and n represents a number determined by the valence of the rare-earth element R and is a positive number required for maintaining electroneutrality) and a sintering aid. The dielectric ceramic composition satisfies the relationships 0.990≦m≦1.050; 0.01≦x≦0.20; 0.5≦a≦3.5; 0.1≦b≦5.0; and 10≦c≦20, and the amount of the sintering aid represented by d in terms of parts by weight per 100 parts by weight of the compound represented by (Ba1-xCax)mTiO3 satisfies 0.8≦d≦5.0 Furthermore, VO3/2 may be added to increase the breakdown field. |
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