Piezoelectric Lead Zirconate Titanate Ceramic Fiber/Polymer Composites

David J. Waller, Ahmad Safari

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Piezoelectric lead zirconate titanate (PZT) ceramic fiber/polymer composites were fabricated by a novel technique referred to as “relic” processing. Basically, this involved impregnating a woven carbon‐fiber template material with PZT precursor by soaking the template in a PZT stock solution. Careful heat treatment pyrolized the carbon, resulting in a PZT ceramic relic that retained the fibrous template form. After sintering, the densified relic was backfilled with polymer to form a composite. Optimized relic processing consisted of soaking activated carbon‐fiber fabric twice in an intermediate concentration (405‐mg PZT/(1‐g solution)) alkoxide PZT solution and sintering at 1285°C for 2 h. A series of piezoelectric composites encompassing a wide range of dielectric and piezoelectric properties was prepared by varying the PZT‐fiber orientation and polymer‐matrix material. In PZT/Eccogel polymer composites with PZT fibers orientated parallel to the electrodes, K= 75, d33= 145 pC/N, dh= 45 ± 5 pC/N, and dhgh= 3150 × 10−15 m2/N were measured. Furthermore, in composites with a number of PZT fibers arranged perpendicular to the electroded surfaces, K= 190, d33= 250 pC/N, dh= 65 ± 2 pC/N, and dh gh= 2600 × 10−15 m2/N.

Original languageEnglish (US)
Pages (from-to)1648-1655
Number of pages8
JournalJournal of the American Ceramic Society
Volume75
Issue number6
DOIs
StatePublished - Jun 1992

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Keywords

  • composites
  • fabrication
  • fibers
  • lead zirconate titanate (PZT)
  • piezoelectric properties

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