Raman Spectra of Bismuth Titanate Ceramics
Bismuth titanate is a typical layer-structured ferroelectric material and belongs to the Aurivilius type-structure compounds family. A bismuth titanate ceramic material could be obtained by mechanically activated synthesis after thermal treatment at a temperature slightly lower than in conventional solid-state reaction. In this case bismuth titanate was prepared through mechanochemical synthesis starting from bismuth oxide and titanium oxide in rutile form. The mixture of oxides was milled in a zirconium oxide jar in a planetary ball-mill in intervals from 1 to 12 hours. The ratio of powders to zirconium oxide balls during milling was 1:20. Bismuth titanate was formed after 1 h. The Raman spectroscopy analysis was performed.
Dragan P. Uskoković, Slobodan K. Milonjić and Dejan I. Raković
Z.Ž. Lazarević et al., "Raman Spectra of Bismuth Titanate Ceramics", Materials Science Forum, Vol. 555, pp. 243-247, 2007