PIEZOELECTRIC CERAMIC COMPOSITION, PIEZOELECTRIC ELEMENT AND PIEZOELECTRIC VIBRATION MODULE INCLUDING THE SAME

摘要

Disclosed are a piezoelectric ceramic composition, a piezoelectric element and a piezoelectric vibration module including the same. The piezoelectric ceramic composition according to an aspect of the present invention includes a sintering additive as an oxide of a solid solution or a carbonate in a ceramic having a composition of xPb(Ni_(1/3)Nb_(2/3))O_3-(1-x)Pb(Zr_(1-y)Ti_y)O_3 (0.05<=x<=0.2, 0.4<=y<=0.7).