首页>
外国专利>
A dielectric material, a method for producing the same and a dielectric resonator device comprising same
A dielectric material, a method for producing the same and a dielectric resonator device comprising same
展开▼
机译：电介质材料，其制造方法以及包括该电介质材料的电介质谐振器装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
Dielectric materials are disclosed that are based on BaO-ZnO-Ta2O5 represented by the formula Ba(Zn1/3Ta2/3)O3. Ba has been partly replaced by K and either Zn or Ta has been replaced by at least one element selected from Mg, Zr, Ga, Ni, Nb, Sn. The dielectric materials have a relatively high permittivity, a small absolute value of the temperature coefficient of resonance frequency, and a high unloaded quality factor. A method for producing the dielectric materials is also disclosed which includes mixing given amounts of starting materials, such as, for example, BaCO3, ZnO, Ta2O5, K2CO3, MgCO3, SnO2 or ZrO2, compacting the mixture to produce a compact, sintering the compact in an oxidizing atmosphere such as, for example, air, at 1,400 to 1,600°C, more preferably at 1,550 to 1,600°C for 2 hours, and then heating the sintered compact at a temperature lower than the sintering temperature by from 50 to 250°C, e.g., by 100°C, for at least 12 hours, preferably for 24 hours. A dielectric resonator comprising the dielectric material of the present invention is also disclosed.
展开▼
机译：公开了基于由式Ba（Zn1 / 3Ta2 / 3）O3表示的BaO-ZnO-Ta2O5的介电材料。 Ba已被K部分取代，Zn或Ta已被选自Mg，Zr，Ga，Ni，Nb，Sn中的至少一种元素取代。介电材料具有相对高的介电常数，谐振频率的温度系数的绝对值小和空载品质因数高。还公开了一种制造介电材料的方法，该方法包括混合给定量的起始材料，例如BaCO 3，ZnO，Ta 2 O 5，K 2 CO 3，MgCO 3，SnO 2或ZrO 2，将混合物压实以产生压块，将压块烧结在例如空气的氧化气氛中，在1400至1600℃，更优选在1550至1600℃下进行2小时，然后在比烧结温度低50至250℃的温度下加热烧结体。 ℃，例如100℃，持续至少12小时，优选24小时。还公开了包括本发明的介电材料的介电共振器。
展开▼
