A general formula for the effective pyroelectric coefficient of composites

Author

Ploss, B. ; Ploss, B. ; Shin, F.G.

Author_Institution

Univ. of Appl. Sci., Jena

Volume

13

Issue

5

fYear

2006

Firstpage

1170

Lastpage

1176

Abstract

We have derived a general formula for the prediction of the effective pyroelectric coefficient of composites. In this relation, the pyroelectric coefficient of the composite is written as a function of the pyroelectric coefficients and dielectric constants of the constituents and the effective dielectric constant of the composite material. In contrast to other formulas in the field, shape and spatial arrangement of the components and the volume ratio are not directly involved in our relation. The influence of these is completely included in the effective dielectric constant of the composite. Therefore, the new relation gives a correct description for all kinds of connectivities and provides an easy tool for the optimization of pyroelectric composites

Keywords

composite materials; permittivity; pyroelectricity; dielectric constants; optimization; pyroelectric coefficient; pyroelectric composites; spatial arrangement; volume ratio; Composite materials; Conductivity; Dielectric constant; Ferroelectric materials; Permittivity; Physics; Polymers; Pyroelectricity; Shape; Topology;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2006.247846

Filename

1714944