Maxima of effective parameters of novel piezo-composites based on relaxor-ferroelectric single crystals

V Y Topolov, A V Krivoruchko, C R Bowen

Research output: Contribution to journalArticle

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Abstract

This paper is devoted to the analysis of effective electromechanical properties and their maxima in 0-3-type composites based on (1 - x)Pb(Mg1/3Nb2/3)O-3 - xPbTiO(3) single crystals. It is shown that the electromechanical interaction between the single-crystal e(33)((n)) / vertical bar e(31)((n))vertical bar and polymer components with the anisotropy of their piezoelectric coefficients e33 31 >= 5 results in relations d(33)* approximate to e(33)* s(33)*(E), g(33)* approximate to h (33)*s(33)*(D) and k(t)* approximate to k(33)* for the electromechanical constants. These relations hold in a wide range of volume fraction and aspect ratio of the spheroidal inclusions in the 0-3 composite. An increase in the maximum values of different effective parameters is expected by.forming a system of oblate air pores in the matrix.
Original languageEnglish
Pages (from-to)145-152
Number of pages8
JournalFerroelectrics
Volume351
DOIs
Publication statusPublished - 2007

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Ferroelectric materials
Single crystals
composite materials
single crystals
Composite materials
aspect ratio
Aspect ratio
Volume fraction
Polymers
Anisotropy
inclusions
porosity
anisotropy
air
polymers
coefficients
matrices
Air
interactions

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Maxima of effective parameters of novel piezo-composites based on relaxor-ferroelectric single crystals. / Topolov, V Y; Krivoruchko, A V; Bowen, C R.

In: Ferroelectrics, Vol. 351, 2007, p. 145-152.

Research output: Contribution to journalArticle

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