METHOD FOR THE PRODUCTION OF A PIEZOELECTRIC LAYER STACK, AND PIEZOELECTRIC LAYER STACK

METHOD FOR THE PRODUCTION OF A PIEZOELECTRIC LAYER STACK, AND PIEZOELECTRIC LAYER STACK

The invention relates to a method for producing a piezoelectric layer stack (10), wherein a layer stack (10) having a plurality of piezoelectric ceramic layers (12) and having a plurality of electrically conductive inner electrodes (14) alternating along a longitudinal axis (L) is provided, wherein,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZUMSTRULL, Claus, WILDGEN, Andreas
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
ELECTRICITY
GRINDING
PERFORMING OPERATIONS
POLISHING
TRANSPORTING
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Beschreibung
Zusammenfassung:The invention relates to a method for producing a piezoelectric layer stack (10), wherein a layer stack (10) having a plurality of piezoelectric ceramic layers (12) and having a plurality of electrically conductive inner electrodes (14) alternating along a longitudinal axis (L) is provided, wherein, on the surface (16) thereof, the ceramic layers (12) have a first region (18) with a polycrystalline structure (20) and a second region (22) with a loose ceramic material (24) that is purely mechanically adhered to the polycrystalline structure (20), wherein the loose ceramic material (24) is removed from the polycrystalline structure (20) without damaging the polycrystalline structure (20). The invention also relates to a layer stack (10) produced in particular using a method of this type.