(Pb, bi)(ti, fe, mn)03/polymer 0-3 composites for hydrophone applications

J. R. Giniewicz, R. E. Newnham, A. Safari, Dawne Moffatt

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The hydrostatic piezoelectric response of composite materials incorporating (Pbl-,Bix)(Til-,Fe,)O, ceramic fillers from the highly anisotropic tetragonal region of the solid solution system in the vicinity of the morphotropic phase boundary were measured and compared. The considerable difficulty in poling and, hence, the diminished piezoelectric response encountered as the composition of the filler is shifted closer to the phase boundary was determined to be largely due to the high conductivity of the BiFe03-rich compositions. The ceramic was modified with Mn in an attempt to lower its conductivity. Composites incorporating the Mn-doped filler poled more rapidly and easily than the undoped material and ultimately achieved a hydrostatic figure of merit, dhghr 40% better than that observed for the undoped samples. Among the samples investigated, the highest hydrostatic figures of merit were exhibited by samples containing the doped and undoped x = 0.5 fillers. The hydrostatic response remains stable over a broad pressure range.

Original languageEnglish (US)
Pages (from-to)405-417
Number of pages13
JournalFerroelectrics
Volume73
Issue number1
DOIs
StatePublished - Jun 1 1987

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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