Dielectric proprieties of ferroelectric ceramics derived from the system BaTiO3-NaNbO3-based solid solutions

Helmi Abdelkefi (1) , Hamadi Khemakhem (1) , Gabriel Vélu (2) , Jean-Claude Carru (2) , Régnault von Der Mühll (3)

1 LPA - Laboratoire de Physique Appliquée [Université de Sfax]
2 LEMCEL - Laboratoire d'Etude des Matériaux et des Composants pour l'Electronique
3 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

Dielectric studies performed on the solid solution Ba1−xNaxTi1−xNbxO3 (BNTN) show that all compositions (x= 0.1, 0.15, 0.2, 0.4, 0.5 and 0.025, 0.05, 0.6, 0.7, 0.8) exhibit a ferroelectric–paraelectric phase transition where the Curie temperature is a function of the composition...

Mots clés: Dielectric; Ferroelectric; Ceramics; Relaxor behaviour; Lead-free

Domaines: Matériaux

Helmi Abdelkefi, Hamadi Khemakhem, Gabriel Vélu, Jean-Claude Carru, Régnault von Der Mühll. Dielectric proprieties of ferroelectric ceramics derived from the system BaTiO3-NaNbO3-based solid solutions. Solid State Sciences, 2004, 6 (12), pp.1347-1351. ⟨10.1016/j.solidstatesciences.2004.07.012⟩. ⟨hal-00160936⟩