LESSEUR, Julien; BERNARD, Dominique; CHUNG SEU, U-Chan; ESTOURNÈS, Claude; MAGLIONE, Mario; ELISSALDE, Catherine

doi:10.1016/j.jeurceramsoc.2014.07.032

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LESSEUR, Julien
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

BERNARD, Dominique
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CHUNG SEU, U-Chan
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Article de revue

Este ítem está publicado en

Journal of the European Ceramic Society. 2015, vol. 35, n° 1, p. 337-345

Elsevier

Resumen en inglés

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

Palabras clave en inglés

3Dimensional imaging

X-ray computed micro tomography

Ferroelectric

Composite materials

Ceramics

DOI

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

Proyecto ANR

Corrélations entre Architecture, Interfaces et Fonctionnalités dans les multi-matériaux Ferroélectriques :Frittage Flash et caractérisations multi-échelle 3D - ANR-12-BS08-0009

Orígen

Importado de Hal

Centros de investigación

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026