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Piezo Tech is ISO 9001:2000 Certified. Certification No. C2006-02533. Keramos logo

K-500

Lead Zirconate Titanate with High Relative Dielectric Constant and Stable Piezoelectric Constants

Lead zirconate titanate with high relative dielectric constant and stable piezoelectric constants.Piezo Technologies' K-500 is a modified lead zirconate titanate having particularly high relative dielectric constant and stable piezoelectric constants. This material is particularly suited for low frequency, high sensitivity geophones and hydrophones.

K-500 PHYSICAL & ELECTRICAL PROPERTIES
Note:  The above values are nominal. 

KT33

 Free Dielectric Constant 2700

KS33

 Clamped Dielectric Constant 1250
k33 Longitudinal Coupling Coefficient 0.75
k31 Transverse Coupling Coefficient 0.37
k15 Shear Coupling Coefficient 0.65
kt Thickness Coupling Coefficient 0.50
kp Planar Coupling Coefficient 0.62
d33 Piezoelectric Strain Constant (x 10-12 m/V) 500
d31 Piezoelectric Strain Constant (x 10-12 m/V) -260
d15 Piezoelectric Strain Constant (x 10-12 m/V) 700
g33 Piezoelectric Voltage Constant (x 10-3 Vm/N) 20
g31 Piezoelectric Voltage Constant (x 10-3 Vm/N) -9
g15 Piezoelectric Voltage Constant (x 10-3 Vm/N) 25

sE33

 Compliance at Constant Field (x 10-12 m2/N) 22

QM

 Mechanical Q (Thickness) 70

QM

 Mechanical Q (Radial) 70

YE33

 Young's Modulus at Constant Field (x 1010 N/m2) 4.5
D Dissipation (factored at 1kHz) 0.002
Nt Thickness Frequency Constant (kHz-in)
(Hz-m)		 79
2006
Np Planar Frequency Constant (kHz-in)
(Hz-m)		 81
2058
ρ Density (g/cm3) 7.65
ZA Acoustic Impedance (Mega RayL) 35
Vs Sound Velocity (m/sec) 4615
TC Curie Temperature (°C) 245
CTE Coefficient of Thermal Expansion (x 10-6 in/in/°F)
(20°C to 100°C)		 5.3
dave Average Grain Size (mm) 3 - 5

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