Piezoelectric/electrostrictive device

Details Piezoelectric/electrostrictive device Piezoelectric/electrostrictive device

2005-04-19

2005-04-19

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S364000, C310S365000, C029S025350

Reexamination Certificate

active

06882089

ABSTRACT:
A piezoelectric/electrostrictive device is provided, including a ceramic substrate having at least one piezoelectric/electrostrictive layer made of a piezoelectric/electrostrictive ceramic composition and at least one pair of electrodes electrically connected to the piezoelectric/electrostrictive layer formed thereon. The piezoelectric/electrostrictive ceramic composition contains a PbMg1/3Nb2/3O3—PbZrO3—PbTiO3system composition as a major component, wherein part of Pb is substituted with at least one of Sr and La, and contains Ce in an amount of 0.01 to 0.50% by mass in terms of CeO2. The piezoelectric/electrostrictive layer is solidly attached to the substrate directly or via part of the electrodes.

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