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Piezoelectric Properties of Spark-Plasma-Sintered (Na<sub>0.5</sub>K<sub>0.5</sub>)NbO<sub>3</sub>–PbTiO<sub>3</sub>Ceramics
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Citations
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References
2002
Year
Materials ScienceCrystal StructureElectrical EngineeringSolid SolutionEngineeringFerroelectric ApplicationApplied PhysicsHigh-performance PiezoelectricsCeramics MaterialsFerroelectric MaterialsPiezoelectric MaterialsPiezoelectric PropertiesPiezoelectric MaterialPiezoelectricityCeramic PowdersFunctional Materials
In the search for high-performance piezoelectrics, (1-y)(Na0.5K0.5)NbO3–yPbTiO3 (y≤0.50) solid solution has been prepared using the spark-plasma-sintering method. Dielectric investigation reveals that both the ferroelectric phase transition temperatures and the peak value of the dielectric constant are strongly suppressed in the low y range. However, improved electromechanical coupling constants are observed at the same y range. These properties are explained by considering factors such as composition, crystal structure, ferroelectric domain microstructure, and poling conditions.
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