| 摘要 |
The invention relates to ceramic materials based on titanium dioxides and can be used for producing multilayer high frequency thermostable ceramic condensers provided with electrodes based on an alloy which comprises Ag and Pd, and also for producing microwave filters. The aim of the invention is to develop the high frequency ceramic material with a low sintering temperature T>sin< = 1080 - 1120 DEG C for silver-vanadium electrodes with a silver content of not less than 70 %. In a first embodiment, the high frequency ceramic material comprises the following components, expressed in mass % : zinc oxide between 16.0 and 23.9 ; niobium oxide between 47.4 and 75.9; titanium oxide having a rutile structure ranging from 0.9 to 35.9. In the second embodiment, a (Zn>x< Nb>y< Ti>z<)O>2< composition oxide, where generally, X is equal to 0.17, Y is equal to 0.332, Z is equal to 0.5, is used in the high frequency ceramic material as the titanium oxide having the rutile structure. In addition, a zinc niobate ZnNb>2<O>6< is added to said ceramic material so that it has the following component ratio expressed in mass % : the (Zn>x< Nb>y< Ti>z<)O>2< composition oxide ranging from 2 to 8 and the zinc niobate ZnNb>2<O>6< ranging from 20 to 98.
|
