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Closed Access item Domain structure of Bi4Ti3O12 ceramics revealed by chemical etching

Authors:Jardiel, Teresa
Caballero Cuesta, Amador
Fernández Lozano, José Francisco
Villegas, Marina
Issue Date:2006
Citation:Journal of the European Ceramic Society 26 (2006) 2823–2826
Abstract:Chemical etching of bismuth titanate (Bi4Ti3O12) ceramics was developed using a mixture of different agents based on HF, NH4F and H2O. Thermal etching modifies the surface morphology and this give place to rounded plate-like grains. Suitable etching of Bi4Ti3O12 samples could be however achieved with chemical agents, because it preserves the original shape of the platelets. Furthermore with this kind of etching two relevant features of the microstructure arise in scanning electron microscopy (SEM) micrographs: the domain structure of the etched grains and the presence of square-shaped holes inside the platelets.
Publisher version (URL):http://dx.doi.org/10.1016/j.jeurceramsoc.2005.05.003
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