Title :
A complete range of tape-cast piezoelectric thick films for high frequency ultrasonic transducers
Author :
Levassort, F. ; Bove, T. ; Ringgaard, E. ; Tran-Huu-Hue, L.P. ; Holc, J. ; Lethiecq, M.
Author_Institution :
LUSSIGIP Ultrasons, Francois Rabelais Univ., Blois, France
Abstract :
Tape casting technology has been used to produce stand-alone thick films (i.e. 65 to 200 micrometers) of piezoceramics with net final shape for high frequency ultrasonic transducer applications. Four commercially available powder compositions (Pz21, Pz27, Pz29 and Pz34 from Ferroperm piezoceramics) were used. Tape casting technology is first described. The samples are characterized using electrical impedance measurements. Bulk samples of the same compositions are also characterized by a similar method. Electromechanical constants are compared and shown to deliver similar performance. Finally, high frequency transducer simulations (35 MHz) are performed with tape-cast sample values to evaluate performance for medical imaging applications.
Keywords :
biomedical imaging; piezoceramics; piezoelectricity; tape casting; thick films; ultrasonic transducers; 35 MHz; Ferroperm piezoceramics; Pz21; Pz27; Pz29; Pz34; bulk samples; electrical impedance measurements; electromechanical constants; high frequency ultrasonic transducers; medical imaging applications; performance evaluation; powder compositions; standalone thick films; tape casting; tape-cast piezoelectric thick films; transducer simulations; Biomedical transducers; Frequency; Impedance measurement; Medical simulation; Piezoelectric materials; Powders; Shape; Tape casting; Thick films; Ultrasonic transducers;
Conference_Titel :
Ultrasonics, 2003 IEEE Symposium on
Print_ISBN :
0-7803-7922-5
DOI :
10.1109/ULTSYM.2003.1293310
