| 摘要 |
PURPOSE:To obtain a laminated type piezoelectric body, the state of laminating thereof is maintained easily, which can be polarized after lamination and in which there is no absorption at the position of displacement, by mutually superposing, laminating and bonding piezoelectric bodies and metallic plates and integrally forming them. CONSTITUTION:Silver paste 2 having electrical conductivity is attached concentrically on both surfaces of a piezoelectric plate 1 obtained by molding a piezoelectric element to a discoid shape. Projections 4 are formed to the outer circumferential edge of the metallic plate 3. These piezoelectric plates 1 and metallic plates 3 are superposed and laminated alternately when silver paste 2 has adhesive capacity, and these piezoelectric plates 1 and metallic plates 3 are bonded by the adhesive action of silver paste 2, dried and thermally treated for 5-30min at 500-700 deg.C, thus integrally forming both laminates. |
