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发明授权
CN101607819B 介电陶瓷组合物及其所制成的积层陶瓷电容器 失效 - 权利终止

介电陶瓷组合物及其所制成的积层陶瓷电容器
摘要：
本发明揭露一种介电陶瓷组合物及其所制成的积层陶瓷电容器。介电陶瓷组合物包括主成份、第一掺杂物、第二掺杂物及玻璃质成份。主成份由(BaxSryCa1-x-y)m(TizZr1-z)O3组成，其中0＜x＜0.6，0.1＜y＜0.7，0.03＜z＜0.1且0.8＜m＜1.2。第一掺杂物与主成份的摩尔比例值介于0.003～0.075之间，且第一掺杂物为锰、铬、钒或铁的氧化物。第二掺杂物与主成份的摩尔比例值介于0.003～0.03之间，且第二掺杂物为钇、铽、镝、钬、铒、铥或镱的氧化物。玻璃质成份与主成份的摩尔比例值介于0.002～0.02之间。此介电陶瓷组合物可在1150℃～1300℃完成烧结致密化。
摘要（英）：

The invention discloses a dielectric ceramic combination and a multilayer ceramic capacitor made from the dielectric ceramic combination. The dielectric ceramic combination comprises a principal ingredient, a first dopant, a second dopant and a vitreous ingredient. The principal ingredient consists of (BaSrCa<1-x-y>)m(TiZr<1-z>)O<3>, wherein x is more than 0 and less than 0.6, y is more than 0.1 and less than 0.7, z is more than 0.03 and less than 0.1, and m is more than 0.8 and less than 1.2. The mol ratio value of the first dopant to the principal ingredient ranges from 0.003 to 0.075, and the first dopant is the oxide of manganese, chromium, vanadium or ferrum. The mol ratio value of the second dopant to the principal ingredient ranges from 0.003 to 0.03, and the second dopant is the oxide of yttrium, terbium, dysprosium, holmium, erbium, thulium or ytterbium. The mol ratio value of the vitreous ingredient to the principal ingredient ranges from 0.002 to 0.02. The dielectric ceramic combination can finish sintering densification at the temperature of 1150-1300 DEG C.

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