Piezoelectric multilayer ceramic/polymer composite transducer with 2-2 connectivity

Chang Bun Yoon, Seung Ho Lee, Sung Mi Lee, Young Hag Koh, Hyoun Ee Kim, Kyung Woo Lee

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


A multilayer piezoelectric ceramic/polymer composite with 2-2 connectivity was fabricated by thermoplastic green machining after co-extrusion. The multilayer ceramic body was composed of piezoelectrically active lead zirconate titanate (PZN)-lead zinc niobate (PZN)-lead zirconate titanate (PZT) layers and electrically conducting PZN-PZT/Ag layers. After co-extruding the thermoplastic body, which consisted of five piezoelectric layers interspersed with four conducting layers, it was computer numeric-controlled machined to create periodic channels within it. Following binder burnout and sintering, an 18 vol% array of 190 μm thin PZT slabs with a channel size of 880 μm was fabricated. The channels were filled with epoxy in order to fabricate a PZN-PZT/epoxy composite with 2-2 connectivity. The piezoelectric coefficient (effective d 33) and hydrostatic figure of merit (d h×g h) of the PZN-PZT/epoxy composite were 1200 pC/N and 20130 × 10 -15 m 2/N, respectively. These excellent piezoelectric characteristics as well as the relatively simple fabrication procedure will contribute in widening the application range of the piezoelectric transducers.

Original languageEnglish
Pages (from-to)2509-2513
Number of pages5
JournalJournal of the American Ceramic Society
Issue number8
Publication statusPublished - 2006 Aug
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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