Title :
Field-induced piezoelectric materials for 100 kHz-10 MHz transducer applications
Author :
Fielding, J.T., Jr. ; Jang, S.J. ; Shrout, T.R.
Author_Institution :
Mater. Res. Lab., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Several electrostrictive materials were investigated as candidates for high frequency transducer applications. Families investigated included (1-x)Pb(Mg1/3Nb2/3)O3-(x)PbTiO 3 and PLZT relaxors, and Srand Sn-substituted BaTiO3 normal ferroelectrics. The field dependent dielectric, piezoelectric and elastic properties were characterized at frequencies between 100 kHz and 5 MHz. The large magnitude and E-field tunability of the electromechanical and elastic properties observed in several of the materials may present opportunities for several new transducer applications, such as biomedical imaging and non-destructive evaluation
Keywords :
barium compounds; elastic constants; electrostriction; ferroelectric materials; lanthanum compounds; lead compounds; piezoceramics; piezoelectric materials; piezoelectric transducers; strontium compounds; tin compounds; 100 kHz to 10 MHz; BaSnTiO3; BaSrTiO3; E-field tunability; PLZT; PLZT relaxors; PMN-PbTiO3; Pb(Mg13/Nb23/)O3--PbTiO3; PbLaZrO3TiO3; PbMgO3NbO3-PbTiO3; Sn-substituted BaTiO3 normal ferroelectrics; Sr-substituted BaTiO3 normal ferroelectrics; biomedical imaging; elastic properties; electromechanical properties; electrostrictive materials; field dependent dielectric; field-induced piezoelectric materials; high frequency transducer applications; nondestructive evaluation; piezoelectric properties; transducer applications; Biological materials; Biomedical materials; Biomedical transducers; Dielectric materials; Electrostriction; Ferroelectric materials; Frequency; Niobium; Piezoelectric materials; Piezoelectric transducers;
Conference_Titel :
Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on
Conference_Location :
University Park, PA
Print_ISBN :
0-7803-1847-1
DOI :
10.1109/ISAF.1994.522378
