Abstract
Single‐phase bismuth tungstate (Bi2WO6) ceramics with high relative density (>99%) were fabricated by spark plasma sintering. Ferroelectric, dielectric, and piezoelectric properties of Bi2WO6 ceramics were investigated. Almost saturated polarization–electric field (P–E) hysteresis loops with a remanent polarization (Pr) of ∼16.1 μC/cm2 and a coercive field (Ec) of ∼3.7 kV/mm were obtained. Curie point and second phase transition temperatures were observed at 937°±5° and 665°±5°C, respectively. The average piezoelectric constant (d33) of this high Curie point ceramic is 15±0.2 pCN−1.
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