Ceramic device

Details Ceramic device Ceramic device

2006-02-14

2006-02-14

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S330000

Reexamination Certificate

active

06998763

ABSTRACT:
A ceramic device has an actuator element which includes a shape-retaining layer, an upper electrode formed on an upper portion of the shape-retaining layer, and a lower electrode formed on a lower portion of the shape-retaining layer. A vibrating section of ceramics supports the actuator element and a fixed section of ceramics vibratingly supports the vibrating section. An electrode material of the lower electrode contacting the vibrating section contains an additive in an amount of 0.01% by weight to 20% by weight. The electrode material contains platinum as a major component, for example. The additive to the electrode material is preferably zirconium oxide, cerium oxide, or titanium oxide.

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