ABSTRACT Single crystals of BaTiO3 were grown by templated grain growth (TGG). TGG involves contacting a single crystal “template” to a sintered polycrystalline matrix, then heating the assemblage to a temperature that promotes the migration of the single crystal boundary through the matrix. In this investigation the properties of millimeter-sized, plate-shaped and bar-shaped, single crystals of BaTiO3 grown by TGG were examined in order to compare the results to single crystals grown by conventional methods. A dielectric constant, ε33T/ε0, of 260, polarizations of PR ~ 16 μ C/cm2 and Psat ~ 21.5μ C/cm2, electromechanical coupling coefficients of k33 ~ 0.51 and k31 ~ 0.18, and a piezoelectric coefficient of d33 ~ 140 pC/N were achieved. Entrapped porosity in the crystals made fully poling the crystals difficult.
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