| 摘要 |
<p>A glass ceramic represented by the chemical composition formula: aRO·bNb2O5·cSiO2·dB2O3·eTeO2·fX (wherein R represents Ba and/or Sr; X represents at least one oxide selected from the group consisting of TiO2, ZrO2, P2O5 and ZnO; a>b≥0.05; 0.60≥c≥0; 0.70≥d≥0; 0.70≥e≥0; c+d+e≥0.175; a+b+c+d+e=1.0; and 0.10≥f>0). The ratio of dielectric constant at 1 kHz (&epsiv;1) to dielectric constant at 100 kHz (&epsiv;100), &epsiv;1/&epsiv;100, is 10 or greater.</p> |
