Determination of the piezoelectric properties of fine scale PZT fibres

L J Nelson, C R Bowen

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Finite Element (FE) modelling is used to determine the effect of fibre volume fraction, aspect ratio and polymer matrix stiffness on the d(33) coefficients of 1-3 connectivity piezoelectric fibre composites. The aim is to use these observations as a means of determining the d(33) of fine scale lead zirconate titanate (PZT) fibres. Results from a I-D analytical model fit well with FE predictions for low aspect ratios. Two commercially available PZT-5A fibres, produced via the viscous suspension spinning process (VSSP) and an extrusion process, were fabricated into 1-3 composites with varying fibre volume fi-actions. The composite d(33) measurements are compared to the model predictions and used to determine the d(33) coefficients of the fibers. The d(33) of the VSSP fibres and extruded fibres is measured as 365 pCN(-1) and 235 pCN(-1) respectively using this method. The large difference in the piezoelectric coefficients is possibly linked to the grain size and porosity, which is examined using scanning electron microscopy.
Original languageEnglish
Pages (from-to)1509-1512
Number of pages4
JournalKey Engineering Materials
Volume206-213
DOIs
Publication statusPublished - 2001

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Fibers
Aspect ratio
Suspensions
Composite materials
Polymer matrix
Extrusion
Analytical models
Volume fraction
Porosity
Stiffness
Scanning electron microscopy

Cite this

Determination of the piezoelectric properties of fine scale PZT fibres. / Nelson, L J; Bowen, C R.

In: Key Engineering Materials, Vol. 206-213, 2001, p. 1509-1512.

Research output: Contribution to journalArticle

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