PIEZOELECTRIC FILM, INK JET HEAD, METHOD OF FORMING IMAGE BY THE INK JET HEAD, ANGULAR VELOCITY SENSOR, METHOD OF MEASURING ANGULAR VELOCITY BY THE ANGULAR VELOCITY SENSOR, PIEZOELECTRIC GENERATING ELEMENT, AND METHOD OF GENERATING ELECTRIC POWER USING THE PIEZOELECTRIC GENERATING ELEMENT

摘要

The present invention provides a non-lead piezoelectric film having high crystalline orientation, the low dielectric loss, the high polarization-disappear temperature, the high piezoelectric constant, and the high linearity between an applied electric field and an amount of displacement. The present invention is a piezoelectric film comprising: a NaxLa1-x+yNi1-yO3-x layer having only an (001) orientation and a (1-alpha) (Bi, Na, Ba) TiO3-alphaBiQO3 layer having only an (001) orientation. The (1-alpha) (Bi, Na, Ba) TiO3-alphaBiQO3 layer is formed on the NaxLa1-x+yNi1-yO3-x layer. The character of Q represents Fe, Co, Zn0.5Ti0.5, or Mg0.5Ti0.5 The character of x represents a value of not less than 0.01 and not more than 0.05. The character of y represents a value of not less than 0.05 and not more than 0.20. The character of alpha represents a value of not less than 0.20 and not more than 0.50.