Piezoelectric effect in composite polyurethane-ferroelectric ceramics
MetadataShow full item record
Flexible 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.
How to cite this document
Showing items related by title, author, creator and subject.
Carvalhal, Ricardo ; Da Silva, Samuel ; Júnior, Vicente Lopes (Conference Proceedings of the Society for Experimental Mechanics Series, 2005) [Trabalho apresentado em evento]A finite element modeling of an intelligent truss structure with piezoelectric stack actuators for the purpose of active damping and structural vibration attenuation is presented. This paper concerns with the following ...
Marqui, Clayton Rodrigo ; Bueno, Douglas Domingues ; Cordeiro, Leandro ; Silva, Carlos Renato ; Lopes Jr., Vicente (Conference Proceedings of the Society for Experimental Mechanics Series, 2006) [Trabalho apresentado em evento]Nowadays there is great interest in structural damage detection in systems using nondestructive tests. Once the failure is detected, as for instance a crack, it is possible to take providences. There are several different ...
Sakamoto, Walter K. ; Malmonge, José A. ; Malmonge, Luiz F. ; Da Silva, Alberto F.G. ; Higuti, Ricardo T. (IEEE Transactions on Dielectrics and Electrical Insulation, 2006) [Trabalho apresentado em evento]Composites made of Calcium-modified lead titanate (PTCa) and poly (ether-etherketone) (PEEK) high performance polymer matrix were prepared in the film form using a hot press. The ceramic volume fraction reaches up to 60 ...