| 摘要 |
PURPOSE:To provide a piezoelectric porcelain composition having a high electromechanical coupling coefficient, a low temperature dependence of the relative dielectric constant and a low and uniform crystalline particle size, and capable of maintaining high reliability. CONSTITUTION:A piezoelectric porcelain composition characterized by its composition obtained by adding 0.05-0.20wt.% Mn, 0.03-0.15wt.% Ni and 0.02-1.10wt.% Sb2O3 as secondary components to a fundamental composition represented by a general formula of Pb1-ABaA(ZrBTiC)O3 (provided that B+C=1) and satisfying 0.05<=A<=0.15 and (B/C)=1.01-1.07. |
