Title :
Development of novel (2-2) piezoelectric composites by direct-write technique
Author :
J. Sun;E.K. Akdogan;M. Vittadello;A. Safari
Author_Institution :
The Glenn Howatt Electronic Ceramic Laboratory, Department of Materials Science and Engineering, Rutgers-the State University of New Jersey, Piscataway, 08854, USA
Abstract :
The Micropen? direct-write technique was used to fabricate ceramic skeletal structures to develop ceramic/polymer (2-2) composites for high frequency transducers in medical imaging applications. Both regular and volume fraction gradient (VFG) patterns were designed. By this approach, transducers were fabricated with 1 cm2 transduction area, operating at 4?5 MHz. The composites had ~30 vol% of ceramic, with thickness ranging 290 to 380 ?m. They had a dielectric loss of 2.0?2.1%, a dielectric constant of 500?670, a d33 of 190, and kt of 56%?61%.
Keywords :
"Bioceramics","Ceramics","Frequency","Writing","Polymers","Biomedical transducers","Dielectric losses","Impedance","Sun","Laboratories"
Conference_Titel :
Applications of Ferroelectrics, 2008. ISAF 2008. 17th IEEE International Symposium on the
Print_ISBN :
978-1-4244-2744-4
Electronic_ISBN :
2375-0448
DOI :
10.1109/ISAF.2008.4693826
