Title :
Single layer piezoelectric-epoxy composite
Author :
Slayton, M.H. ; Setty, H.S.N.
Author_Institution :
Acoustic Imaging Technologies Corp., Tempe, AZ, USA
Abstract :
A single-particle-layer piezoelectric-epoxy composite is proposed, and the relatively simple fabrication process is discussed. The optimized piezocomposite shows a low acoustic impedance (Z=9.9 Mrayl) and a low Qm of 9.1 with a high electromechanical coupling factor of 0.61 (which correlates closely with other composites-see). Apparently, due to the irregular mechanical structure of the piezocomposite, spurious resonance modes are suppressed in the radial direction. Further optimization of the single-particle-layer piezocomposite should include an effort to increase the fairly low dielectric constant and d33 for wider practical possibilities
Keywords :
electromechanical effects; particle reinforced composites; permittivity; piezoelectric materials; fabrication process; high electromechanical coupling factor; irregular mechanical structure; low acoustic impedance; low dielectric constant; optimization; optimized piezocomposite; radial direction; resonance modes; single-particle-layer piezoelectric-epoxy composite; Ceramics; Fabrication; Gravity; Piezoelectric materials; Piezoelectric polarization; Polymers; Powders; Resonance; Resonant frequency; Sheet materials;
Conference_Titel :
Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on
Conference_Location :
Urbana-Champaign, IL
Print_ISBN :
0-7803-0190-0
DOI :
10.1109/ISAF.1990.200201
