| 摘要 |
The present invention provides a dielectric ceramic composition for use in a high-frequency range represented by the general formula (1-x)Ba1-y(Zn1/3, Ta2/3)O3+xBa1-yZrO3. In the formula, y is 0.004</=y</=0.013 and x is the amount of substitution of Ba1-yZrO3 and 0<x</=0.06. This composition is prepared by weighing raw materials so that the mixing ratio of Ba is slightly smaller than that of the stoichiometric composition, calcining the resultant mixture to prepare a calcination product, grinding the calcination product through only dry process without conducting wet pulverization, molding the resultant powder, and sintering the molded product at 1600 DEG to 1700 DEG C. for 1 to 10 hr. |
