Sakamoto, W. K. [UNESP]Higuti, R. T. [UNESP]Da Silva, A. F G [UNESP]Malmonge, J. A. [UNESP]Malmonge, L. F. [UNESP]2014-05-272014-05-272005-12-01Proceedings - International Symposium on Electrets, v. 2005, p. 400-403.http://hdl.handle.net/11449/68535Composites made of calcium modified lead titanate ceramic powder and poly (ether-ether-ketone) high performance polymer matrix were prepared in the film form using a hot press. The acoustic and electromechanical properties of the composites have been determined using the ultrasonic immersion technique and piezoelectric spectroscopy, respectively. The composite film with 60 - 40 vol.% PTCa/PEEK was tested as acoustic emission detector. Preliminary results shown that the piezo composite can be used as sensor to evaluate the behavior of materials.400-403engAcoustic emission sensorsElectromechanical propertiesLead titanatehigh performance polymer matrixPiezoelectric spectroscopyAcoustic emissionsCalciumChemical modificationHot pressingLead compoundsPolyether ether ketonesSensorsComposite filmsTrabalho apresentado em evento10.1109/ISE.2005.1612408WOS:000236764500105Acesso aberto2-s2.0-338477106400896348165708140640533951088320310168699749881900000-0003-4201-5617