Low-losses, highly tunable Ba0.6Sr0.4TiO3/MgO composite
Langue
en
Article de revue
Ce document a été publié dans
Applied Physics Letters. 2008-01-29, vol. 92, n° 4, p. 042902 (3 p.)
American Institute of Physics
Résumé en anglais
Spark plasma sintering SPS is an efficient tool to obtain highly densified ferroelectric-dielectric ceramic composites with clean interfaces and tunable properties. Dielectric MgO and ferroelectric Ba0.6Sr0.4TiO3 BST were ...Lire la suite >
Spark plasma sintering SPS is an efficient tool to obtain highly densified ferroelectric-dielectric ceramic composites with clean interfaces and tunable properties. Dielectric MgO and ferroelectric Ba0.6Sr0.4TiO3 BST were combined in two-dimensional multilayer and three-dimensional random powders design. Their unmodified BST Curie temperature proves the suppression of interdiffusion while dielectric losses are below 0.5% and the tunability is 40% at room temperature. The composites and pure BST with similar densities 95% were obtained, owing reliable comparison of their dielectric properties. Such SPS ceramics can be used as experimental input for simulation and are potential candidates for high frequency applications.< Réduire
Mots clés en anglais
Composite
Dielectric loss and relaxation
Ferroelectricity
Ceramic
Spark plasma sintering
SPS
Origine
Importé de halUnités de recherche