Piezoelectric ceramic energy trapping electronic device

Details Piezoelectric ceramic energy trapping electronic device Piezoelectric ceramic energy trapping electronic device

1984-11-07

1986-08-12

Cooper, Jack

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

252 629, 310320, H01L 4118

Patent

active

046058761

ABSTRACT:
Piezoelectric ceramic compositions comprising a principal component, ##EQU1## and manganese contained therein as an additive in the amount of 0.1 to 2.0 wt % of MnO.sub.2 with respect to the weight of 1 mol of the principal component. The piezoelectric ceramic compositions are suitable for use for pyroelectric devices, piezoelectric vibrators, resonators, oscillators, ceramic filters, surface acoustic wave filters and so on.

REFERENCES:
patent: 3526597 (1970-09-01), Ikegami et al.
patent: 3747176 (1973-07-01), Toyoshima
patent: 3763446 (1973-10-01), Toyoshima et al.
patent: 4078284 (1978-03-01), Capek et al.
patent: 4356421 (1982-10-01), Shimizu et al.

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