Sakamoto, W. K. [UNESP]Shibatta-Kagesawa, S. [UNESP]Kanda, D. H F [UNESP]Fernandes, S. H. [UNESP]Longo, Elson [UNESP]Chierice, G. O.2014-05-272014-05-271999-03-01Physica Status Solidi (A) Applied Research, v. 172, n. 1, p. 265-271, 1999.0031-8965http://hdl.handle.net/11449/65720Flexible and free-standing films of piezoelectric composites made up of lead zirconate titanate (PZT) ceramic powder dispersed in a castor oil-based polyurethane (PU) matrix were obtained by spin coating and characterized as materials for sensor applications. The piezoelectric coefficients d 31 and d 33 were measured with the usual technique. The piezoelectric charge constant d 33 yields values up to ≤24 pC/N, even at lower PZT content (33 vol%). Some desirable properties like piezoelectricity, flexibility and good mechanical resistance show this new material to be a good alternative for use as sensors and actuators.265-271engCeramic materialsCoating techniquesElectric chargeLead compoundsNonmetallic matrix compositesPiezoelectric materialsPiezoelectricityPolyurethanesPowdersLead zirconate titanateMechanical resistancePiezoelectric charge constantPiezoelectric coefficientsSpin coatingDielectric filmsArtigo10.1002/(SICI)1521-396X(199903)172:1<265::AID-PSSA265>3.0.CO;2-NAcesso restrito2-s2.0-003309824708963481657081404802713321439692