Piezoelectric properties of textured Bi3.25La0.75Ti2.97V0.03O12 ceramics fabricated by reactive templated grain growth method

摘要

We have fabricated Bi3.25La0.75Ti2.97V0.03O12 (BLTV) ceramics by reactive templated grain growth method using a Bi4Ti3O12 template and investigated the electromechanical coupling coefficient (k) and temperature coefficient of a resonant frequency as a function of temperature. The highly preferentially [00l] oriented BLTV ceramics were obtained and the grain-orientation factor (Lotgering factor) was 83%. The electromechanical coupling coefficient of the longitudinal vibration mode (k 33) and the temperature coefficient of resonant frequency of textured BLTV ceramics were enhanced compared to those of nontextured BLTV ceramics.