Perforated Pzt-Polymer Composites For Piezoelectric Transducer Applications

A. Safari, R. E. Newnham, W. A. Schulze

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Composites of PZT and polymer with 3–1 and 3–2 connectivity patterns have been fabricated by drilling holes in sintered PZT blocks and Filling the holes with epoxy. The influence of hole size and volume fraction PZT on the hydrostatic properties of the composite was evaluated. By decoupling the piezoelectric d33 and dn coefficients in the composite, the hydrostatic coefficients are greatly enhanced. On samples optimized for hydrophone performance, the dielectric constants of 3–1 and 3–2 composites are 600 and 300 respectively. The piezoelectric coefficients dh, gh and ghdh for 3–1 composites are 230 (pCN-1), 34 (x!03VmN’1), and 7800 (10’15m2N_1) respectively, and the corresponding values for 3–2 composites are 372 (pCN‘1), 123 (10“‘ VmN-1), and 45000 (10“, s mJN”).

Original languageEnglish (US)
Pages (from-to)197-205
Number of pages9
JournalFerroelectrics
Volume41
Issue number1
DOIs
StatePublished - May 1 1982

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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