Title :
Piezoelectric and pyroelectric properties of PT/P(VDF-TrFE) 0-3 composites
Author :
Chan, H.L.W. ; Chan, W.K. ; Choy, C.L. ; Lei, Deming
Author_Institution :
Dept. of Appl. Phys., Hong Kong Polytech., Kowloon, Hong Kong
Abstract :
Lead titanate (PT)/vinylidene fluoride-trifluoroethylene (P(VDF-TrFE)) copolymer 0-3 composites have been fabricated by solution blending followed by compression-molding. In order to obtain piezoelectric and pyroelectric activities the composites have been polarized by a stepwise poling method. Samples with (i) polarization in the ceramic phase only and (ii) parallel polarization in the ceramic and copolymer have been prepared. The piezoelectric and pyroelectric coefficients of these two types of composites have been measured and the results are discussed
Keywords :
composite materials; lead compounds; piezoelectric materials; polymer blends; pyroelectricity; PT/P(VDF-TrFE) 0-3 composite; PbTiO3; compression-molding; lead titanate/vinylidene fluoride-trifluoroethylene copolymer; piezoelectric properties; polarization; pyroelectric properties; solution blending; stepwise poling; Ceramics; Dielectric losses; Ferroelectric materials; Heating; Impedance; Permittivity measurement; Piezoelectric polarization; Pyroelectricity; Temperature; Titanium compounds;
Conference_Titel :
Electrets, 1996. (ISE 9), 9th International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-2695-4
DOI :
10.1109/ISE.1996.578220
