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Title:
PIEZOELECTRIC CERAMICS, PIEZOELECTRIC ELEMENT AND LAMINATED PIEZOELECTRIC ELEMENT
Document Type and Number:
Japanese Patent JP2003128459
Kind Code:
A
Abstract:

To provide lead-free piezoelectric ceramics whose strains show little temperature dependency near a phase transition temperature.

The piezoelectric ceramics essentially comprise a BaTiO3 ceramics composition and do not satisfy the Curie-Weiss' law: =C/(T-T0) (provided that is the dielectric constant; C is the Curie constant; T is a given temperature in a paraelectric phase; and T0 is the Curie-Weiss temperature).


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Inventors:
OGISO KOJI
HAYASHI KOICHI
ANDO AKIRA
SAKABE YUKIO
Application Number:
JP2001324938A
Publication Date:
May 08, 2003
Filing Date:
October 23, 2001
Export Citation:
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Assignee:
MURATA MANUFACTURING CO
International Classes:
C04B35/46; C04B35/49; H01L41/083; H01L41/09; H01L41/187; (IPC1-7): C04B35/46; C04B35/49; H01L41/083; H01L41/09; H01L41/187



 
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