Guo C.,Key Laboratory of Acoustic and Photonic Material and Device |
Guo C.,Wuhan University |
Pu S.,Key Laboratory of Acoustic and Photonic Material and Device |
Pu S.,Wuhan University |
And 5 more authors.
Ceramics International | Year: 2010
A commensurate modulated structure of (1 - x)Bi2O3·xFe2O3 is found in the BiFeO3 ceramics synthesized by the rapid liquid-phase sintering method. Transmission electron microscopy studies show that the superstructure is based on fluorite-type δ-Bi2O3 and modulated probably by oxygen vacancy ordering. The existence of such a superstructure may increase the leakage current of BiFeO3 ceramics. © 2009 Elsevier Ltd and Techna Group S.r.l.