New lead-free non-stoichiometric perovskite relaxor ceramics derived from BaTiO3
Langue
en
Article de revue
Ce document a été publié dans
Solid State Sciences. 2003, vol. 5, n° 11-12, p. 1459-1464
Elsevier
Résumé en anglais
The present work concerns the preparation and dielectric characterization of some new non-stoichiometric lead-free ceramics with perovskite compositions derived from BaTiO3. Lead-free compositions could be of great interest ...Lire la suite >
The present work concerns the preparation and dielectric characterization of some new non-stoichiometric lead-free ceramics with perovskite compositions derived from BaTiO3. Lead-free compositions could be of great interest for environment-friendly applications (dielectric for capacitors, actuators, etc.). These materials have been shown to be either classical or relaxor ferroelectrics. In the first part of this article, the BaTiO3---Ba0.5NbO3 system concerns the cationic non-stoichiometry occurring only in the 12-coordination crystallographic site. In the second part, the influence of non-stoichiometry also occurring in the anionic site was determined in compositions belonging to the ternary system 2BaO---TiO2---Nb2O5...< Réduire
Mots clés en anglais
Dielectric studies
Lead-free relaxor ceramics
Origine
Importé de halUnités de recherche