Title :
Microstructure study of Bi4Ti3O12-SrBi4O15 and Bi3.25La0.75Ti3O12-SrBi4Ti4O15 ceramics
Author :
Su, D. ; Zhu, J.S. ; Wang, D.Y. ; Chad, H.L.W. ; Choy, C.L. ; Wang, Y.N.
Author_Institution :
Nat. Lab. of Solid State Microstructures, Nanjing Univ., China
fDate :
28 May-1 June 2002
Abstract :
TEM study is preformed on mixed-layer type bismuth compounds: Bi4Ti3O12-SrBi4T4O15 (BT-SBTi) and Bi3.25La0.75Ti3O12-SrB4T4O15 (BLT-SBTi) ceramics. Meeting the prediction of space group theory, APBs and 90° domain wall are observed by bright- and dark-field imaging in both materials. Besides, other planer defects are found and confirmed to be stacking faults.
Keywords :
antiphase boundaries; bismuth compounds; crystal microstructure; electric domain walls; ferroelectric ceramics; lanthanum compounds; stacking faults; strontium compounds; transmission electron microscopy; 90° domain wall; Bi3.25La0.75Ti3O12-SrBi4Ti4O15; Bi4Ti3O12-SrBi4O15; TEM; antiphase boundaries; ferroelectric ceramics; microstructure; planer defects; space group theory; stacking faults; Argon; Bismuth; Ceramics; Diffraction; Ferroelectric materials; Microstructure; Milling; Prototypes; Superlattices; Transmission electron microscopy;
Conference_Titel :
Applications of Ferroelectrics, 2002. ISAF 2002. Proceedings of the 13th IEEE International Symposium on
Print_ISBN :
0-7803-7414-2
DOI :
10.1109/ISAF.2002.1195873