| abstract |
The present invention relates to an ABO 3 perovskite crystal material comprising a crystal lattice A-site and a B-site, and is represented by the general formula Pb x (Zr y Ti z ) M 1 -y - z O 3 , 0.64? Y? 0.55, and 0.43? Z? 0.55, and M is a metal element of +5 or +6 valence, and a piezoelectric device using the PZT piezoelectric ceramics material. According to this, it is possible to exhibit excellent electrical, dielectric, and piezoelectric characteristics because a Pb or PbO phase that does not add Pb is not formed in the PZT piezoelectric body. |