| 摘要 |
In a multilayer electrostrictive element wherein electrostrictive sections (31) are defined by internal electrodes (32) in a stack having a peripheral surface which has a predetermined outline perpendicularly of an axis of the stack, each internal electrode is given an outline which is approximately congruent with the predetermined outline. In order that external electrodes (33, 34) may readily be connected to the internal electrodes grouped into two, each internal electrode may have a peripheral end which is partly recessed from the predetermined outline. Alternatively, the internal electrodes of each group may be connected together by a conductor rod which passes through the electrostrictive sections. For a great number of internal electrodes, an element may be manufactured by laminating conductive-paste-printed green sheets transversely of the stack axis and then sintering the lamination. Each internal electrode may include a ceramic material, such as an electrostrictive material of the electrostrictive sections, another electrostructive material of a lower sintering temperature, or glass. |
