| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric ceramic capable of preparing a piezoelectric element maintaining high piezoelectric characteristics without deteriorating piezoelectric characteristics even if a piezoelectric body is thinned and to provide a piezoelectric element using the same.SOLUTION: There is provided a composite oxide-type piezoelectric ceramic essentially consisting of lead zirconate titanate, which comprises crystal particles essentially consisting of lead zirconate titanate and hetero-phase particles essentially consisting of ZnO unevenly distributed between the crystal particles, wherein 0.3 wt.% or less (excluding 0) of Fe is contained in terms of Fe2O3 based on the total weight of the piezoelectric ceramic.SELECTED DRAWING: Figure 4 |
