| 摘要 |
The dielectric composition for multilayer ceramic condenser satisfies X7R temperature standard. The composition comprises: A) niobium oxide and tantalum oxide; B)cerium oxide; and C) cobalt oxide, manganese oxide and zinc oxide. The composition formula is 100BaTiO3 + aNb2O5 + bTa2O5 + cCeO2 + dCo2O3 + eMnO2 + fZnO. (0.0<=a<=1.0 mol%, 0.0<=b<=0.5 mol%, 0.20<=c<=0.5 mol%, 0.20<=d<=1.00 mol%, 0.0<=e<=1.0 mol%, and 0.0<=f<=0.25 mol%) The dielectric temperature property of this composition is very good.
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