Characteristics of 1-3-type ferroelectric ceramic/auxetic polymer composites

V Y Topolov, C R Bowen

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9 Citations (Scopus)

Abstract

This paper presents modelling and simulation results on 1-3 piezoactive composites comprising a range of ferroelectric ceramics, which are assumed to have variable properties and an auxetic polymer (i.e. a material with a negative Poisson ratio) that improves the hydrostatic piezoelectric response of the composite. Dependences of the effective piezoelectric coefficients and related parameters of the 1-3 composites on the degree of poling, mobility of the 90 degrees domain walls within ceramic grains, on the volume fraction of the ceramic component and on the Poisson ratio of the polymer component have been calculated and analysed. The role of the piezoelectric anisotropy and domain-orientation processes in improving and optimising the effective parameters, piezoelectric activity and sensitivity of 1-3 ferroelectric ceramic/auxetic composites is discussed.
Original languageEnglish
Article number015007
JournalModelling and Simulation in Materials Science and Engineering
Volume16
DOIs
Publication statusPublished - 2008

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Ferroelectric ceramics
Polymer Composites
Polymers
Composite
ceramics
composite materials
Poisson's Ratio
Composite materials
polymers
Poisson ratio
Hydrostatics
Domain walls
Domain Wall
hydrostatics
Volume Fraction
domain wall
Modeling and Simulation
Anisotropy
Volume fraction
anisotropy

Cite this

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AB - This paper presents modelling and simulation results on 1-3 piezoactive composites comprising a range of ferroelectric ceramics, which are assumed to have variable properties and an auxetic polymer (i.e. a material with a negative Poisson ratio) that improves the hydrostatic piezoelectric response of the composite. Dependences of the effective piezoelectric coefficients and related parameters of the 1-3 composites on the degree of poling, mobility of the 90 degrees domain walls within ceramic grains, on the volume fraction of the ceramic component and on the Poisson ratio of the polymer component have been calculated and analysed. The role of the piezoelectric anisotropy and domain-orientation processes in improving and optimising the effective parameters, piezoelectric activity and sensitivity of 1-3 ferroelectric ceramic/auxetic composites is discussed.

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