| 摘要 |
An improved dielectric ceramic composition for high frequencies and a method for preparation of the same, capable of being advantageously used for a dielectric resonator, a material of a substrate for an integrated circuit and the like in high frequency regions, which consists of a main component of ZrO2, TiO2, and SnO2 and a sintering aid component of ZnO, NiO, Nb2O5, and Mn(NO3)24H2. The main component consists of 38 to 58 wt % of ZrO2, 22 to 43 wt % of TiO2, and 9 to 26 wt % of SnO2. And the sintering aid component consists of, with respect to the total amount of the main component, less than 7 wt % of ZnO, less than 10 wt % of NiO, less than 7 wt % of Nb2O5, and less than 4 wt %, of Mn(NO3)24H2O, calculated on the basis of the weight ratio of MnO2.
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