New oxyfluoride lead-free ferroelectric relaxors in the BaTiO3-BaZrO3-CaLiF3 system

Authors
Aliouane, K Hamadene, M Guehria-Laidoudi, A Simon, A Ravez, J
Citation
K. Aliouane et al., New oxyfluoride lead-free ferroelectric relaxors in the BaTiO3-BaZrO3-CaLiF3 system, J FLUORINE, 105(1), 2000, pp. 71-76
Citations number
8
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF FLUORINE CHEMISTRY
ISSN journal
00221139 → ACNP
Volume
105
Issue
1
Year of publication
2000
Pages
71 - 76
Database
ISI
SICI code
0022-1139(200008)105:1<71:NOLFRI>2.0.ZU;2-G
Abstract
New dielectric oxyfluoride ceramics have been obtained in the ternary syste m BaTiO3-BaZrO3-CaLiF3. X-ray powder diffraction studies determined the lim its of perovskite-type solid solutions. Dielectric measurements were perfor med over the frequency and temperature ranges 10(2)-2x10(5) Hz and 77-450 K respectively. This ternary system shows both classical ferroelectric and r elaxer ferroelectric behaviours depending on the composition. These results are related to ionic substitution and chemical bonding. These compositions are of interest for applications (dielectrics for capacitors, actuators) s ince they are environment-friendly. (C) 2000 Elsevier Science S.A. All righ ts reserved.