abstract |
The present invention relates to an alumina-based ceramic material mainly comprising alumina, produced by shaping mixture of manganese-titanium composite oxide and a vanadium oxide and sintering the resulting shaped article, and a production method therefor. The alumina-based ceramic material in the present invention can be applied to uses for dielectric porcelain, dielectric antenna and dielectric resonator and a supporting stand therefor, dielectric filter, dielectric duplexer, and communication device. |