The piezoelectric material, the piezoelectric element and the electronic device

Abstract

The present invention relates to a piezoelectric material, the piezoelectric element and the electronic device. To provide a satisfactory piezoelectric constant and mechanical quality factor of the lead-free piezoelectric material within the device driving temperature range (-30 ℃ to 50 ℃). Said piezoelectric material comprises a main component containing perovskite-type metal oxide represented by formula 1, a first auxiliary component composed of Mn, and a second sub-component of Bi or Bi and Li thereof. Based on 100 parts by weight of a metal oxide, a metal basis, the content of Mn is 0.040 parts by weight to 0.500 parts by weight. Based on 100 parts by weight of a metal oxide, a metal basis content of Bi is 0.042 parts by weight to 0.850 parts by weight, and the content of Li is 0.028 parts by weight or less (including 0 parts by weight), (Ba1-xCax) a (Ti1-yZry ) O3 (1), wherein, 0.030≤x <0.090,0.030≤y≤0.080, and 0.9860≤a≤1.0200.