Issue Eur. Phys. J. AP Volume 18, Number 1, April 2002 Page(s) 17 - 24 Section Characterization of Materials DOI 10.1051/epjap:2002022

Eur. Phys. J. AP 18, 17-24 (2002)
DOI: 10.1051/epjap:2002022

Dielectric behavior study of some composites polyester/MTiO by time domain spectroscopy

A.-M. Bottreau¹, N. Bouzit^{1, 2} and Az. Merzouki<sup>2

1</sup>  Physique des Interactions Ondes-Matière (UMR 5501) , ENSCPB, Universitéé de Bordeaux I, avenue Pey Berland, BP 108, 33402 Talence Cedex, France
²  Département d'électronique, Facultéé des Sciences de l'ingénieur, Universitéé Ferhat Abbas, 19000 Sétif, Algeria

bouzitnacerdine@yahoo.fr

(Received: 21 March 2001 / Received in final form: 23 October 2001 / Accepted: 4 December 2001 )

Abstract
The objective of this paper is to explore the possibility to use composites polyester/titanates (M ²⁺Ti ⁴⁺O ₃^2- with , Sr ²⁺, Ca ²⁺, Mg ²⁺) to get a miniature high- frequency components, and the proposal of signal processing allowing to minimize the different errors particular to the temporal spectroscopy in matched line for two spaces (time, frequency), and the establishment of an expression that determines directly the permittivity without having to make the inverse resolution transcendent equations related to the propagation. Analysis of results obtained by this signal processing, confirms the validity of Bottreau's modeling law, in low frequency according to the volume fraction and the spectral viewpoint, which allows to anticipate the composition of materials to be used to reply to electromagnetic predefined characteristics.

PACS
77.84.Dy - Niobates, titanates, tantalates, PZT ceramics, etc..
77.84.Lf - Composite materials.
78.20.Bh - Theory, models, and numerical simulation.


© EDP Sciences 2002

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