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

K-15

High-Temperature Piezoelectric Ceramic with High Piezoelectric Stability

High-temperature piezoelectric ceramic with high piezoelectric stablity.Piezo Technologies' K-15 is a piezoelectric ceramic developed for high-temperature applications. It has a high Curie temperature greater than 600°C, coupled with extremely stable piezoelectric activity over this entire temperature range. One particular application would be for ultra-high temperature accelerometers.

K-15 PHYSICAL & ELECTRICAL PROPERTIES
Note:  The above values are nominal. 

K3

 Relative Dielectric Constant 165

k33

 Longitudinal Coupling Coefficient 0.15
k31 Transverse Coupling Coefficient 0.02
k15 Shear Coupling Coefficient 0.08
kt Thickness Coupling Coefficient ≥ 0.15
kp Planar Coupling Coefficient 0.06
d33 Piezoelectric Strain Constant (x 10-12 Coul/Newton) ≥ 18
d31 Piezoelectric Strain Constant (x 10-12 Coul/Newton) NA
d15 Piezoelectric Strain Constant (x 10-12 Coul/Newton 14
g33 Piezoelectric Voltage Constant (x 10-3 Vm/N) 14.5
g31 Piezoelectric Voltage Constant (x 10-3 Vm/N) -2.8
g15 Piezoelectric Voltage Constant (x 10-3 Vm/N) 9.7
sE33 Compliance at Constant Field (x 10-12 m2 Vm/N) 10

Qm

 Mechanical Q (Thickness) 100

YE33

 Young's Modulus at Constant Field (x 1010 N/m2) 12
D Dissipation (factored at 1kHz) 0.01
Nt Thickness Frequency Constant (kHz-in)
(Hz-m)		 82
2080
ρ Density (g/cm3) 7.2
ZA Acoustic Impedance (Mega RayL) 29
Vs Sound Velocity (m/sec) 4165
TC Curie Temperature (°C) > 600
CTE Coefficient of Thermal Expansion (x 10-6 in/in/°F) 5.5

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