Piezoelectric ceramic body having silver-containing internal electrodes
AssigneeRobert Bosch GmbH
InventorsMarianne Hammer, Friederike Lindner, Petra Kuschel
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Abstract
A piezoelectric ceramic body includes a multiplicity of insulating layers, arranged one on top of the other, made of a piezoactive ceramic material, the insulating layers being separated from each other at least in areas by internal electrodes, of which at least one has a silver-containing material at least in areas. The material of the silver-containing internal electrode furthermore has a component reducing or inhibiting the diffusion of silver from the internal electrodes into an insulating layer, in particular a ceramic component on the basis of a PZT ceramic.
Claims10
A piezoelectric ceramic body comprising:
- a plurality of insulating layers situated one over the other, the insulating layers being composed of a piezoactive ceramic material;
- and
- internal electrodes separating at least portions of the insulating layers from each other, at least a part of at least one of the internal electrodes containing a silver-containing material, the material of the at least one internal electrode having a component which at least one of reduces and inhibits a diffusion of silver from the at least one internal electrode into an insulating layer.
Dependencies are inferred from the claim text.