New oxyfluoride lead-free ferroelectric relaxors in the BaTiO3-BaZrO3-BaLiF3 system

X-ray powder diffraction was used to determine the limits of solid solution in the ternary system BaTiO3-BaZrO3-BaLiF3. Dielectric measurements were performed in the frequency and temperature range 10 exp(2) to 2 x 10 exp(5) Hz and 77-450 K, respectively. This ternary system showed both classical fe...

Full description

Saved in:
Bibliographic Details
Published in:Materials letters 2000, Vol.42 (3), p.189-193
Main Authors: KERFAH, A, TAÏBI, K, GUEHRIA-LAÏDOUDI, A, SIMON, A, RAVEZ, J
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric properties of solids and liquids
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Ferroelectricity and antiferroelectricity
Niobates, titanates, tantalates, pzt ceramics, etc
Permittivity (dielectric function)
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:X-ray powder diffraction was used to determine the limits of solid solution in the ternary system BaTiO3-BaZrO3-BaLiF3. Dielectric measurements were performed in the frequency and temperature range 10 exp(2) to 2 x 10 exp(5) Hz and 77-450 K, respectively. This ternary system showed both classical ferroelectric and relaxor ferroelectric behaviours depending on the composition. The results were related to ionic substitution and chemical bonding. A spontaneous classical ferroelectric-relaxor ferroelectric transition was observed for the first time in a lead-free perovskite-type phase. These compositions are of interest for applications (dielectrics for capacitors, actuators) since they are environment-friendly. 11 refs.
ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(99)00182-2