| abstract |
PROBLEM TO BE SOLVED: To provide a lead-free piezoelectric material having a high piezoelectric constant and a mechanical quality factor in a wide practical temperature range. To that end, the following general formula (1): General formula (1) (Ba 1-x Ca x ) a (Ti 1-y Zr y ) O 3 (1.00 ≦ a ≦ 1.01, 0.125 ≦ x <0.155, 0.041 ≦ y ≦ 0.074) A piezoelectric material mainly composed of a perovskite type metal oxide represented by the formula, wherein the metal oxide contains Mn, and the Mn content is in metal conversion with respect to 100 parts by weight of the metal oxide. Provided is a piezoelectric material characterized by being 0.12 part by weight or more and 0.40 part by weight or less. [Selection] Figure 1 |