Verformbares, durch eine elektrisches Feld induzierbares Material

摘要

There is disclosed an electric-field-inducible deformable material comprising as a main component BaTiO3 containing 0.05 to 2 wt% of at least one of Mn, Cu and Co in terms of metal, wherein a crystal phase in a porcelain is a single perovskite phase and the value of the transversal electric-field-induced deformation is 300 x 10<-6> or more at a field strength of 2000 V/mm. It is presumed that the amount of a rotating 90 DEG domain becomes greater and the electric-field-induced deformation due to this is increased and, thus, sufficient displacement as a piezoelectric material is obtained.