Innovative architectures in ferroelectric multi-materials: Chemistry, interfaces and strain

Catherine Elissalde (1) , U-Chan Chung (1) , Gilles Philippot (1) , Julien Lesseur (1) , Romain Berthelot (1) , David Sallagoïty (1, 2) , Marjorie Albino (1) , Romain Epherre (3) , Geoffroy Chevallier (3) , Sonia Buffiere (1) , Alicia Weibel (3) , Daniel Bernard (1) , Jérôme Majimel (1) , Cyril Aymonier (1) , Stéphane Mornet (1) , Claude Estournès (3) , Mario Maglione (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 UCL - Université Catholique de Louvain = Catholic University of Louvain
3 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

Breakthroughs can be expected in multi-component ceramics by adjusting the phase assembly and the micro–nanostructure. Controlling the architecture of multi-materials at different scales is still challenging and provides a great opportunity to broaden the range of functionalities in the field of ferroelectric-based ceramics. We used the potentialities of Spark Plasma Sintering (SPS) to control a number of key parameters regarding the properties: anisotropy, interfaces, grain size and strain effects. The flexibility of the wet and supercritical chemistry routes associated with the versatility of SPS allowed designing newferroelectric composite ceramics at different scales. These approaches are illustrated through various examples based on our work on ferroelectric/dielectric composites.

Mots clés: Ferroelectric; Nanostructures; Composites; Ceramics; Structure-property relationships; Dielectric; Spark plasma sintering

Domaines: Matériaux; Matériaux

Catherine Elissalde, U-Chan Chung, Gilles Philippot, Julien Lesseur, Romain Berthelot, et al.. Innovative architectures in ferroelectric multi-materials: Chemistry, interfaces and strain. Journal of Advanced Dielectrics, 2015, 5 (2), pp.1-11. ⟨10.1142/S2010135X15300017⟩. ⟨hal-01451103⟩