Abstract
In this work, sintering behaviour of Bi 2O 3–ZnO–Nb 2O 5 compounds was investigated in order to develop LTCC materials with suitable microwave properties. Structure, dielectric properties and sintering were studied for ceramic dielectrics based on the system: Bi 2ZnNb 2O 9 with the pyrochlore structure and ZnNb 2O 6 with a columbite one. The work was carried out over a wide range of initial components concentration. Ceramic samples of these materials were prepared by the mixed oxide technique. The effect of adding glass to the materials have been discussed. The sintering behaviour, dielectric permittivity, quality factor and crystal structures have been characterized for ceramic samples depending on compositions. Low-temperature co-firable ceramic material with ɛ ∼ 30, τ ɛ = 0 and Q × f = 3500 GHz based on the above system was synthesized.
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