Preparation of Barium Titanate Grain-Oriented Ceramics and their Piezoelectric Properties
Barium titanate (BaTiO3, BT) grain-oriented ceramics along  direction were prepared by a templated grain growth (TGG) method. The  oriented BT platelike particles (t-BT) were used as template particles. BT grain-oriented ceramics with higher relative density (Drel) over 95 %, high degree of orientation along  direction (F110) over 80 % and grain sizes around 30 µm were successfully prepared using only the template particles. The relationship between microstructures and piezoelectric constant (d33) was investigated. The higher F110 was, the higher Drel and the smaller grain size were required for enhancement of the piezoelectric properties.
Shinobu Fujihara and Tadashi Takenaka
R. Mori et al., "Preparation of Barium Titanate Grain-Oriented Ceramics and their Piezoelectric Properties", Key Engineering Materials, Vol. 445, pp. 3-6, 2010