| 摘要 |
A glass ceramics having a chemical composition of aRO.bNb<SUB>2</SUB>.O<SUB>5</SUB>.cSiO<SUB>2</SUB>.dB<SUB>2</SUB>O<SUB>3</SUB>.eTeO<SUB>2</SUB>.fX (where R represents Ba and/or Sr, X represents one or more oxide selected from the group consisting of TiO<SUB>2</SUB>, ZrO<SUB>2</SUB>, P<SUB>2</SUB>O<SUB>5 </SUB>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 dielectric constant at 1 kHz epsilon<SUB>1 </SUB>to dielectric constant at 100 kHz epsilon<SUB>100 </SUB>(epsilon<SUB>1</SUB>/epsilon<SUB>100</SUB>) is 10 or more.
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