Low-Loss Ceramic Composition Cofirable with Silver at a Reduced Sintering Temperature and Process for Producing same

摘要

The invention can be performed with the cow is in the lowered the sintering temperature low loss (low-loss) term piezoelectric ceramic composition and a process for their preparation. The composition formula _{Pb (Zr x Ti 1-x} ) O 3 + yMnO 2 of 95.0 to 99.5 wt% characterized in that it comprises a system (and 0≤x≤1.0 Here, the 0.1≤y≤1.0wt%) a two-component piezoelectric term consisting of primary composition is a ceramic composition. The composition also formula _{wB 2 O 3 -xBi 2 O 3} -yMeO-zCuO ( where w, x, y and z of 0.5 to 5.0% by weight is the weight percentage of each component, w + x + y + z = contains an additive of a 1). Composition in Me is one metal selected from the group consisting of Ca, Sr, Ba, and Zn; A 0.01≤x≤0.15wt%, 0≤x≤0.80wt%, 0≤y≤0.60wt% and 0≤z≤0.55wt%. Importantly, the piezoelectric ceramic composition when sikyeoteul term performance cattle with the sintering temperature of about 900 ℃ is is an electrode layer and a non-reactive.