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To provide a dielectric having a high dielectric constant in a temperature range of 225°C or less, a small change rate of dielectric constant, and high insulating properties.SOLUTION: A ceramic material comprises, by mol: 0-15% of P2O5; 0-25% of GeO2; and 75-95% of Nb2O5, wherein the ceramic material further has: a dielectric constant of 700 or more in a temperature range of 225°C or less; a change rate of the dielectric constant of 30% or less; and an electrical conductivity of 10-8 S/cm or less. The ceramic material further includes (P(1-x)Gex)Nb9O25-α (00) as a crystal phase.SELECTED DRAWING: Figure 1
【課題】２２５℃以下の温度領域で誘電率が高く、その変化率が小さく、絶縁性の高い誘電体の提供。【解決手段】モル％でＰ２Ｏ５を０～１５％、ＧｅＯ２を０～２５％、Ｎｂ２Ｏ５を７５～９５％含有し、２２５℃以下の温度領域において誘電率が７００以上、その変化率が３０％以下、導電率が１０－８Ｓ/ｃｍ以下であることを特徴とするセラミックス材料。結晶相として（Ｐ（１－ｘ）Ｇｅｘ）Ｎｂ９Ｏ２５－α（０＜ｘ≦１、α＞０）を含有することを特徴とする請求項１に記載のセラミックス材料。【選択図】図１
To provide a dielectric having a high dielectric constant in a temperature range of 225°C or less, a small change rate of dielectric constant, and high insulating properties.SOLUTION: A ceramic material comprises, by mol: 0-15% of P2O5; 0-25% of GeO2; and 75-95% of Nb2O5, wherein the ceramic material further has: a dielectric constant of 700 or more in a temperature range of 225°C or less; a change rate of the dielectric constant of 30% or less; and an electrical conductivity of 10-8 S/cm or less. The ceramic material further includes (P(1-x)Gex)Nb9O25-α (00) as a crystal phase.SELECTED DRAWING: Figure 1
【課題】２２５℃以下の温度領域で誘電率が高く、その変化率が小さく、絶縁性の高い誘電体の提供。【解決手段】モル％でＰ２Ｏ５を０～１５％、ＧｅＯ２を０～２５％、Ｎｂ２Ｏ５を７５～９５％含有し、２２５℃以下の温度領域において誘電率が７００以上、その変化率が３０％以下、導電率が１０－８Ｓ/ｃｍ以下であることを特徴とするセラミックス材料。結晶相として（Ｐ（１－ｘ）Ｇｅｘ）Ｎｂ９Ｏ２５－α（０＜ｘ≦１、α＞０）を含有することを特徴とする請求項１に記載のセラミックス材料。【選択図】図１
CERAMIC MATERIAL AND CAPACITOR
セラミックス材料及びコンデンサ
FU JIE (author)
2022-12-01
Patent
Electronic Resource
Japanese