Author/Authors :
Chao Guo، نويسنده , , Shizhou Pu، نويسنده , , Zhenlian Chen، نويسنده , , Meiya Li، نويسنده , , Jiefeng Cao، نويسنده , , Huamin Zou، نويسنده ,
Abstract :
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.
Keywords :
A. Sintering , B. Electron microscopy , microstructure , Ferroelectric
