Laminated piezoelectric/electrostrictive device

Details Laminated piezoelectric/electrostrictive device Laminated piezoelectric/electrostrictive device

2006-10-31

2008-10-28

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S366000

Reexamination Certificate

active

07443080

ABSTRACT:
There is realized a piezoelectric/electrostrictive device of a laminated type from which a large displacement is obtained and which is highly reliable over a long period. A laminated piezoelectric/electrostrictive device1has: a laminated columnar article10constituted by alternately laminating a plurality of piezoelectric/electrostrictive layers14and inner electrode layers18, 19; and a pair of outer electrodes28, 29disposed on a peripheral surface of the laminated columnar article10to connect layers having the same polarity to each other among the inner electrode layers18, 19. This laminated piezoelectric/electrostrictive device1is characterized in that interfaces2a, 2bhaving a relatively low interface strength as compared with the other interfaces are disposed at a specific interval among the interfaces between layers of the laminated columnar article10.

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