| 摘要 |
PROBLEM TO BE SOLVED: To obtain an electric-field-inducible deformable material in which 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. SOLUTION: This electric-field-inducible deformable material comprises as a main component BaTiO3 containing 0.05 to 2 wt.% of at least one metal selected from Mn, Cu and Co in terms of metal, wherein a crystal phase in a ceramic is a single perovskite phase and the value of the transversal electric- field-induced deformation is >=300×10-6 at a field strength of 2,000 V/mm. |
