High‐K Dielectric Ceramics from Donor/Acceptor‐Codoped (Ba1−xCax)(Ti1‐yZry)O3 (BCTZ)
- 1 May 1998
- journal article
- Published by Wiley in Journal of the American Ceramic Society
- Vol. 81 (5) , 1369-1373
- https://doi.org/10.1111/j.1151-2916.1998.tb02494.x
Abstract
(Ba1−xCax)(Ti1−yZry)O3 ceramics doped with various donors and acceptors were sintered in a reducing atmosphere and then annealed at different oxygen partial pressures. The dielectric maxima at the Curie point increased up to ∼30000 after reoxidation, depending on the grain size, the type of acceptor, and the annealing conditions. The increase of the dielectric maxima seems to be correlated with oxidation of the grain boundaries. The dielectric properties show relaxation effects with increased frequency.Keywords
This publication has 10 references indexed in Scilit:
- Dielectric Properties of Acceptor-Doped (Ba,Ca)(Ti,Zr)O3 CeramicsJournal of Electroceramics, 1998
- Ca-acceptors in dielectric ceramics sintered in reducive atmospheresJournal of the European Ceramic Society, 1995
- dc Electrical Degradation of Perovskite‐Type Titanates: I, CeramicsJournal of the American Ceramic Society, 1990
- Relaxor ferroelectricsFerroelectrics, 1987
- Phase relations and dielectric properties of BaTiO3 ceramics heavily substituted with neodymiumJournal of Materials Science, 1987
- Dielectric properties of fine-grained barium titanate ceramicsJournal of Applied Physics, 1985
- Diffuse Ferroelectric Phase Transitions in Ba(Ti1‐yZry)O3 CeramicsJournal of the American Ceramic Society, 1982
- Reversible Weight Change of Acceptor‐Doped BaTiO3Journal of the American Ceramic Society, 1981
- Valence change and phase stability of-doped BaTiannealed in oxygen and hydrogenPhysical Review B, 1979
- INTERPRETATION OF SOME EXPERIMENTAL RESULTSPublished by Elsevier ,1971