Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1982-08-16
1983-12-20
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
252 629, H01L 4108
Patent
active
044220030
ABSTRACT:
Composites of lead zirconate titanate (PZT) and inactive polymers with 3-1 and 3-2 patterns and a method of fabrication thereof are described. Fabrication is accomplished by drilling holes in sintered PZT blocks and filling the holes with epoxy or some other inactive polymer. The influence of hole size and volume fraction PZT on the hydrostatic properties of the composite is evaluated. By decoupling the piezoelectric coefficients d.sub.33 and d.sub.31 in the composite, the hydrostatic coefficients are greatly enhanced.
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Perforated PZT-Polymer Composite for Piezoelectric Transducer Applications, afari et al., Ferroelectrics 1982, vol. 41 pp. 197-205, public disclosure date 8-21-81.
Cross Leslie E.
Newnham Robert E.
Safari Ahmad
Schulze Walter A.
Beers Robert F.
Budd Mark O.
Lall Prithvi C.
McGill Arthur A.
The United States of America as represented by the Secretary of
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