title: X-ray powder diffraction structural characterization of Pb1-xBaxZr0.65Ti0.35O3 ceramic.
abstract: The structure of Pb(1-x)Ba(x)Zr(0.65)Ti(0.35)O(3) (PBZT) ceramic materials with 0.00 < or = x < or = 0.40 was studied using synchrotron X-ray powder diffraction data. According to the Rietveld refinements, the structure of PBZT ceramics with x = 0.00, 0.10 and 0.20 at room temperature was rhombohedral R3c. A phase transition from rhombohedral to cubic was observed at 543 and 463 K for x = 0.10 and 0.20, respectively. The refinement for the compositions x = 0.30 and x = 0.40 showed a cubic structure from 10 to 450 K, in good agreement with the dielectric properties of these samples.
authors.affiliation: Instituto de Fisica de Sao Carlos, Universidade de Sao Paulo, Caixa Postal 369, CEP 13560-970, Sao Carlos, SP Brasil. mimir@ifsc.usp.br
authors.forename: M
authors.initials: M
authors.lastname: Mir
authors.forename: V R
authors.initials: VR
authors.lastname: Mastelaro
authors.forename: P P
authors.initials: PP
authors.lastname: Neves
authors.forename: A C
authors.initials: AC
authors.lastname: Doriguetto
authors.forename: D
authors.initials: D
authors.lastname: Garcia
authors.forename: M H
authors.initials: MH
authors.lastname: Lente
authors.forename: J A
authors.initials: JA
authors.lastname: Eiras
authors.forename: Y P
authors.initials: YP
authors.lastname: Mascarenhas