Journal of the American Ceramic Society, Vol.93, No.11, 3604-3606, 2010
Electron Backscattered Diffraction of MonoCrystalline Bismuth Titanate
Bismuth titanate (Bi(4)Ti(3)O(12)) is an important precursor in the fabrication of textured piezoelectric materials using reactive template grain growth. We report on a study of the crystallographic orientation of bismuth titanate platelets, grown via molten salt synthesis. Electron backscattered diffraction (EBSD) of single platelets reveals that they have a unique crystallographic orientation, with the small thickness direction commensurate with the c-axis. X-ray diffraction of platelets drop cast onto a glass substrate confirm this orientation; this time, the platelets are strongly textured with the c-axis normal to the glass substrate surface. Contrary to EBSD experiments on ceramic materials, no specialist sample preparation such as polishing or coating was required; a suspension of the powders in isoproponal alcohol was simply drop cast onto an scanning electron microscopic stub.