Piezoelectric ceramic compositions

Details Piezoelectric ceramic compositions Piezoelectric ceramic compositions

1984-01-18

1985-04-16

Cooper, Jack

Compositions

Piezoelectric

C04B 3546

Patent

active

045114838

ABSTRACT:
A piezoelectric ceramic composition comprises a major component, ##STR1## (where 0.01.ltoreq.X.ltoreq.0.40 and 0.ltoreq..alpha..ltoreq.1), and CuO contained therein as an additive in an amount of 0.05 to 2.5 wt % with respect to the weight of 1 mole of the major component. If required, this composition may contain 0.05 to 2.0 wt % of MnO.sub.2 with respect to the weight of 1 mole of the major component. The composition has excellent temperature characteristics in addition to excellent dielectric and piezoelectric characteristics suitable for use in various fields.

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