3D modelling of ferroelectric composite properties using X-ray micro tomography images : effective permittivity and tunability

Dominique Bernard (1) , Catherine Elissalde (1) , Claude Estournès (2) , Julien Lesseur (1) , Erwan Plougonven (1) , Mario Maglione (1)

1 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux
2 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

Ferroelectric materials are widely used for microelectronic applications and different approaches are explored to produce new materials with well-controlled properties (permittivity, Curie temperature, dielectric losses, tunability, …). In the composite approach we selected, dielectric particles are introduced in a ferroelectric powder to obtain, by Spark Plasma Sintering (SPS), a composite with dielectric inclusions distributed within a ferroelectric matrix. Optimisation of the process relies on diverse characterization methods and different numerical methods...

Domaines: Matériaux

Dominique Bernard, Catherine Elissalde, Claude Estournès, Julien Lesseur, Erwan Plougonven, et al.. 3D modelling of ferroelectric composite properties using X-ray micro tomography images : effective permittivity and tunability. François Willot; Samuel Forest. Physics & Mechanics of Random Media : From morphology to materials properties : a tribute to Dominique Jeulin’s contributions to science, research and teaching at Mines ParisTch., Presses des MINES-TRANSVALOR, pp.21-22, 2018, 978-2-35671-529-6. ⟨hal-03143142⟩