The invention relates to ceramic materials based on bismuth niobate substituted
with zinc 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 multilayer microwave films. The aim of the invention
is to develop a ceramic material having a low sintering temperature sufficient
for using silver-palladium electrodes having a silver content of up to 90%. Said
material has an optimum dielectric permittivity and thermostability which are sufficient
for producing a wide range of items based on said material. Zinc niobate ZnNb2O6
having a structure of columbite with a quantity ranging from 7.0 to 99.0, expressed
in mass %, is added into a ceramic material based on the bismuth niobate substituted
with zinc having a crystal-chemical formula (Bi[ ])2(Zn2+Nd)2O6[
]1,[ ] being a vacancy with a pyrochlore structure. Glass having the following
component ratio, in mass %, can be added into the material: PbO ranging from 26
to 33, Bi2 ranging from 14 to 24, B2O3 ranging from 4 to 10, TiO2 ranging from
15 to 21, ZnO ranging from 21 to 28.
