Compare Soft PZT Materials

Soft PZT
SymbolsUnitsBM500BM527BM532
ElectricalNavy Type IINavy Type VNavy Type VI
Relative Dielectric ConstantKT33---175027503250
Dissipation FactorTan δ%1.62.02.0
Piezoelectric
Coupling Factorkp---0.620.620.65
k31---0.370.370.39
k33---0.720.720.75
Charge Constantd3110-12 C/N-175-215-270
d3310-12 C/N365500590
Voltage Constantg3110-3 V·m/N-11.5-9.5-9.0
g3310-3 V·m/N252220
Mechanical Quality FactorQM---807070
Frequency Constants2NpHz·m205020502000
N1Hz·m140014001425
N4Hz·m180018501850
Mechanical
ComplianceSE1110-12 m2/N15.514.514.0
SE3310-12 m2/N19.019.520.0
Densityρg/cm37.657.67.65
Curie TemperatureTcoC360225210
Ageing Characteristics3 (% change/time decade)
Coupling Factorkp----0.5-1.0-1.0
Relative Dielectric ConstantKT33----1.0-1.0-1.0
Frequency ConstantN4Hz·m0.51.01.0

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