Multilayered piezoelectric element and method of producing...

Details Multilayered piezoelectric element and method of producing... Multilayered piezoelectric element and method of producing...

2011-08-23

2011-08-23

Benson, Walter (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S364000

Reexamination Certificate

active

08004161

ABSTRACT:
A multilayered piezoelectric element and a method of producing the multilayered piezoelectric element are disclosed. The multilayered piezoelectric element is made of piezoelectric ceramic layers and electrode formation layers which are alternately laminated. The piezoelectric ceramic layers are made of crystal oriented ceramic as polycrystalline material. The crystal oriented ceramic is made mainly of an isotropic perovskite type compound in which the specific {100} crystal plane of each of crystal grains that form the polycrystalline material is oriented. The electrode formation layers have electrode parts forming inner electrodes containing a conductive metal. The isotropic perovskite type compound is expressed by a general formula (1):in-line-formulae description="In-line Formulae" end="lead"?[Agh{Lix(K1-yNay)1-x}1-h]j(Nb1-z-wTazSbw)O3-k  (1),in-line-formulae description="In-line Formulae" end="tail"?where 0≦x≦0.2, 0≦y≦1, 0≦z≦0.4, 0≦w≦0.2, x+z+w>0, 0<h≦0.05, 0.94≦j≦1, and 0≦k≦0.5).

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