NDLI: Anisotropic piezoelectric properties of 1–3 ceramic / polymer composites comprising rods with elliptic cross section

Content Provider	Springer Nature Link
Author	Yu. Topolov, V. Bisegna, P.
Copyright Year	2009
Abstract	This paper is concerned with the study of effective piezoelectric properties of 1–3 ferroelectric ceramic / polymer composites. The aim of this paper is to show the role of a combination of the electromechanical properties of components and microgeometry of the 1–3 composite in determining its anisotropic piezoelectric response. The system of ceramic rods in the form of elliptic cylinders is an important microgeometric factor that influences the piezoelectric coefficients and their anisotropy. Examples of the piezoelectric response and anisotropy are analysed for the 1–3 composites based on either “soft” or “hard” ceramic and having either piezo-active or piezo-passive matrix. Combinations of the ceramic and polymer components are found that provide different volume-fraction dependences of the piezoelectric coefficients $$ d_{3j}^{} $$ and $$ g_{3j}^{} $$ : both monotonic, both non-monotonic, monotonic $$ d_{3j}^{} $$ and non-monotonic $$ g_{3j}^{} $$ , and vice versa. Examples of volume-fraction dependences of electromechanical coupling factors $$ k_{3j}^{*} $$ are also considered. A comparison of the effective piezoelectric coefficients calculated by the effective field method and the finite element method is carried out for different compositions in wide ranges of the ratio of semiaxes of the ellipse and of volume fractions of the components. Good agreement between data calculated by means of the aforementioned methods is obtained for the 1–3 structure comprising the elliptic cylinders.
Starting Page	26
Ending Page	37
Page Count	12
File Format	PDF
ISSN	13853449
Journal	Journal of Electroceramics
Volume Number	25
Issue Number	1
e-ISSN	15738663
Language	English
Publisher	Springer US
Publisher Date	2009-08-08
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Electromechanical properties Piezoelectric coefficients 1–3 piezo-active composite Effective field method Finite element method Crystallography Electrochemistry Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Optical and Electronic Materials
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Materials Chemistry Mechanics of Materials Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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