Sintered piezoelectric ceramic, piezoelectric ceramic device, mo

Details Sintered piezoelectric ceramic, piezoelectric ceramic device, mo Sintered piezoelectric ceramic, piezoelectric ceramic device, mo

1998-06-26

1999-09-28

Koslow, C. Melissa

Compositions

Piezoelectric

252 629PZ, 310311, 310364, 310366, 501103, 501104, 501134, 501135, 501136, 501137, 501138, 501139, C04B 3549, H01L 41187

Patent

active

059582855

ABSTRACT:
Disclosed is a sintered piezoelectric ceramic which is resistant to the high voltage for polarization with no dielectric breakdown and has good moisture resistance. When a plurality of the ceramics are fired, they are prevented from being fused and combined together. The production costs of the ceramic are low. The sintered piezoelectric ceramic comprises particulate or agglomerate zirconia grains dispersed in piezoelectric ceramic grains, in which the mean grain size of the piezoelectric ceramic grains is smaller than that of the zirconia grains.

REFERENCES:
patent: 2708243 (1955-05-01), Brajer
patent: 3103441 (1963-09-01), Cline et al.
patent: 5486491 (1996-01-01), Sengupta et al.

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