Abstract
Magnetic-field-assisted electrophoretic deposition method has been employed for synthesizing a(b)-axis-oriented Bi5FeTi3O15 ceramics, and the effects of grain orientation and microstructure on the polarization and piezoelectric properties have been investigated. Grain-oriented Bi5FeTi3O15 ceramics with a high relative sintered density of 98% is shown to exhibit enhanced polarization and piezoelectric properties with a remanent polarization (P r) of 19 μC/cm2 and a piezoelectric strain constant (d 33) of 23 pm/V, which are much superior to those of randomly-oriented ceramics (P r of 7 μC/cm2 and d 33 of 5 pm/V).
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