Fabrication of combined 0-3 and 1-3 connectivities PZT/epoxy resin composites

• Main Authors: W. Thamjaree, W. Nhuapeng, A. Chaipanich, T. Tunkasiri
• Format: Journal
• Published: 2018
• Subjects: Chemistry; Materials Science
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=24944494492&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/62140
• Institution: Chiang Mai University

PZT/epoxy resin composites of combined 0-3 and 1-3 connectivities were fabricated, for the first time, using suction, dice and fill techniques. Two types of composites (PZT(m)/epoxy resin and PZT(sp)/epoxy resin) were produced using PZT powders prepared by mixed oxide and spray-drying methods. Physical, mechanical, dielectric and piezoelectric properties of the composites were examined. Generally, overall results between the two composites were found to be very similar (volumetric changes ∼ 34-37%, d33∼20.2-25.3 pC/N, Kp^sim;0.54-0.61). Higher density was found in PZT(sp)/epoxy resin, however, due to better packing of particles. Moreover, both PZT/epoxy resin composites exhibited very low acoustic impedance (Z∼4.12-4.84 Mrayls), which is very close to that of human tissue and water. Therefore, these new composites may be suitable for use in medical applications. © Springer-Verlag 2004.