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3D mapping of anisotropic ferroelectric/dielectric composites

Lesseur, Julien and Bernard, Dominique and Chung, U-Chan and Estournès, Claude and Maglione, Mario and Elissalde, Catherine 3D mapping of anisotropic ferroelectric/dielectric composites. (2015) Journal of the European Ceramic Society, 35 (1). 337-345. ISSN 0955-2219

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Official URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2014.07.032

Abstract

Macroscopic anisotropy in polycrystalline materials is of key interest since it may help filling the gap between randomly oriented polycrystalslike ceramics and single crystals. Non-destructive X-ray Computed Micro Tomography (XCMT) is a necessary step towards the full controland modelling of such anisotropy, beyond the standard scheme of interfaces. To ascertain this progress, XCMT is applied to 3D mixtures offerroelectric and dielectric oxides processed by Spark Plasma Sintering (SPS). In such conditions, not only is this anisotropy seen in the overalldielectric parameters but it also shows up in ferroelectric properties. Experimental macroscopic parameters are linked to the 3D morphologicalanisotropy of individual MgO inclusions induced during SPS.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Journal of the European Ceramic Society website : http://www.sciencedirect.com/science/journal/09552219/science/journal/00406031
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université de Bordeaux (FRANCE)
Laboratory name:
Funders:
ANR-12-BS08-009 of the French National Research Agency
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Deposited By: cirimat webmestre
Deposited On:01 Feb 2017 15:53

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