期刊
FERROELECTRICS
卷 315, 期 -, 页码 123-147出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/001501990910276
关键词
ferroelectrics; perovskites A(0.5)(+)Bi(0.5)TiO(3)
Properties of the perovskite ferroelectrics Na0.5Bi0.5TiO3 (NBT), K0.5Bi0.5 TiO3 (KBT) and their solid solutions are reviewed. Consideration of the NBT behavior draws attention to phenomena of the ion ordering, coexistence of several phase regions within a crystal lattice, phase transition diffusion and to a quite new phenomenon: existence of the isotropization points (temperatures) in the AFE-phase-temperature interval. In the KBT the isotropic points are absent. NBT, KBT, and their solid solutions are considered as possible useful materials for technical (in particular, for piezoelectric) applications. There are also some other A(0.5)(+)Bi(0.5)B(4+)O(3) perovskites which are interesting for future research.
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