PHILIPPOT, Gilles; ALBINO, Marjorie; CHUNG, U-Chan; JOSSE, Michaël; ELISSALDE, Catherine; MAGLIONE, Mario; AYMONIER, Cyril

doi:10.1016/j.matdes.2015.07.111

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PHILIPPOT, Gilles
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

ALBINO, Marjorie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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

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Article de revue

Ce document a été publié dans

Materials & Design. 2015, vol. 86, p. 354-360

Elsevier

Résumé en anglais

This paper addresses for the first time two of the main challenges in the field of electroceramics. The first one is the development of a continuous, fast and reliable synthesis method for producing sub-20 nm barium titanate zirconate (BaTi1-yZryO3 with 0 ≤ y ≤ 1–BTZ) nanocrystals over the whole solid solution, while keeping a narrow size distribution. The second one concerns the processing of dense and nanostructured lead free electroceramics highlighting the size effect on the crossover from ferroelectric to relaxor, in the case of grains smaller than 100 nm. This was achieved combining the supercritical fluid technology to produce in continuous and at moderate temperature (400 °C) BTZ nanocrystals, with Spark Plasma Sintering (SPS) to prevent grain growth during the sintering.< Réduire

Mots clés en anglais

Barium titanate zirconate (BTZ)

Supercritical fluid

Nanocrystal

Nanostructured ceramic

Lead free

Ferroelectric

Relaxor

DOI

http://dx.doi.org/10.1016/j.matdes.2015.07.111

Project ANR

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

Origine

Importé de hal

Unités de recherche

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