Dielectric and thermal properties of xPbTiO 3- (1 - x)SrTiO 3 polycrystals

E. Martínez, S. García, E. Marin, O. Vasallo, G. Peña-Rodríguez, A. Calderón, J. M. Siqueiros

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8 Scopus citations

Abstract

SrTiO 3 and PbTiO 3 perovskites are combined to form the xPbTiO 3 -(1 - x)SrTiO 3 -(1 - x)SrTiO 3 (PST) solid solution. In this work, a study of its dielectric and thermal properties is reported as a function of PbTiO 3 content. The dielectric properties of the xPbTiO 3 -(1 - x)SrTiO 3 solid solution are determined through a thermoelectric analysis technique and hysteresis measurements. Such measurements made at room temperature for all compositions show the influence of one component upon the other resulting in a response to the electric field that involves a strained lattice behavior. A limiting case of antiferroelectric-like behavior is observed for x = 0.5. The thermal properties such as the specific heat capacity (c) and thermal diffusivity (α) were determined using a photoacoustic technique (PA) and the temperature relaxation method (TRM). The thermal conductivity was calculated from the results obtained for c and α.

Original languageEnglish
Pages (from-to)1233-1239
Number of pages7
JournalJournal of Materials Science
Volume39
Issue number4
DOIs
StatePublished - 15 Feb 2004
Externally publishedYes

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