Title
Mesoseopic ordering in the 0.9 <tex>$Pb(Mg_{1/3}Nb_{2/3})O_{3}-0.1$</tex> <tex>$PbTiO_{3}$</tex> relaxor ferroelectric : a HRTEM study Mesoseopic ordering in the 0.9 <tex>$Pb(Mg_{1/3}Nb_{2/3})O_{3}-0.1$</tex> <tex>$PbTiO_{3}$</tex> relaxor ferroelectric : a HRTEM study
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Berlin ,
Subject
Physics
Source (journal)
Physica status solidi: C: conferences and critical reviews. - Berlin
Volume/pages
4(2007) :3 , p. 736-739
ISSN
1610-1634
ISI
000246104300008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We report a microstructural and compositional study of a 90% Pb(Mg1/3Nb2/3)O-3 - 10% PbTiO3 ceramic sample. High resolution transmission electron microscopy (HRTEM) revealed the presence of compositional ordered nano-domains (1 - 4 mn), observable in two specific orientations, [0 (1) over bar 1] and [1 1 (2) over bar]. However, the visibility and the ordering degree of the nano-domains on the HRTEM images are not at all obvious. Fourier filtering of the images clearly revealed the ordered domains. Antiphase boundaries lying in the (111) planes separate them, while (100) and (111) facets separate the ordered domains from the disordered matrix. Their shape is plate-like, not uniformly spread in the disordered matrix. Their average size varies in different regions of the sample, most probably due to a non-uniform distribution of Ti, as observed by energy dispersive X-ray spectroscopy. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
E-info
https://repository.uantwerpen.be/docman/iruaauth/e6be18/cc31866.pdf
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