PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, AND ELECTRONIC EQUIPMENT

摘要

There is provided a lead-free piezoelectric material having a high and stable piezoelectric constant and mechanical quality factor in a wide operating temperature range. A piezoelectric material mainly composed of a perovskite type metal oxide having the general formula (1), wherein manganese is incorporated in the metal oxide, and the Mn content is 0.12 parts by weight or more and 0.40 parts by weight or less on a metal basis per 100 parts by weight of the metal oxide. (Ba1-xCax)a(Ti1-y-zSnyZrz)O3  (1) (1.00≦̸a≦̸1.01, 0.125≦̸x≦̸0.300, 0