Material Properties

We recognize the need to perform FEA and modeling to predict and design a piezoelectric transducer.  This article provides resources on our material properties.

In this Article


Piezoelectric Materials

A full comparison of the material properties we have is  available on the main site.  The table comparing PZT-5A to PZT-5J and PZT-5H is included below.  Here is a brief summary:

  • PZT-5A - is best for applications that have extreme temperatures and/or a widely varying temperature but the performance is desired to remain constant.
  • PZT-5H - has the best piezoelectric material properties but is influenced by temperature change and has a slightly reduced temperature range.
  • PZT-5J - a compromise between 5H and 5A
PIEZO.COM'S Designation Symbol Units PSI-5A4E PSI-5J1E PSI-5H4E
PIEZOELECTRIC
Industry Designations Navy type II; Industry Type 5A Navy type V; Industry Type 5J Navy type VI; Industry Type 5H
Composition Lead Zirconate Titanate (PZT) Lead Zirconate Titanate (PZT) Lead Zirconate Titanate (PZT)
Relative Dielectric Constant (@ 1 KHz) K T3 1800 2100 3800
Piezoelectric "d" coefficients relate the Strain Produced / Electric Field Applied   or   the Short Circuit Charge Density Produced / Stress Applied
d 33 meter/Volt   or
Coulomb/Newton
390 x 10 -12 500 x 10 -12 650 x 10 -12
d 31 meter/Volt   or
Coulomb/Newton
-190 x 10 -12 -210 x 10 -12 -320 x 10 -12
Piezoelectric "g" coefficients relate the Open Circuit Electric Field Produced / Stress Applied   or   the Strain Produced / Charge Density Applied
g 33 Volt-meter/Newton   or
meter 2/Coulomb
24.0 x 10 -3 23.0 x 10 -3 19.0 x 10 -3
g 31 Volt-meter/Newton   or
meter 2/Coulomb
-11.6 x 10 -3 -10.4 x 10 -3 -9.5 x 10 -3
Coupling Coefficient k 33 0.72 0.74 0.75
k 31 0.35 0.37 0.44
Polarizing Field Ep Volt/meter > 2 x 10 6 > 1.7 x 10 6 > 1.5 x 10 6
Initial Depolarizing Field Ec Volt/meter ~ 5 x 10 5 ~ 4 x 10 5 ~ 3 x 10 5
Coercive Field Ec Volt/meter ~ 1.2 x 10 6 ~ 1.0 x 10 6 ~ 8 x 10 5
MECHANICAL
Density δ Kg/meter 3 7800 7800 7800
Mechanical Q 80 60 32
Elastic (Young's) Modulus Y E3 Newton/meter 2 5.2 x 10 10 5.1 x 10 10 5.0 x 10 10

Some additional material properties can be gleaned from the  attached datasheet. The 3203 material is PZT-5H and 3195 is PZT-5A.


Thermal Dependency of Material Properties

The material properties can change due to temperature.  PZT 5J is not pictured but it is a hybrid between PZT-5A and PZT-5H.


MSDS: PZT-5A & PZT-5H

The material safety datasheet (MSDS) of our piezoelectric materials is included here:

MSDS PDFA breakdown of the lead content and other materials is included below.

PZT materials, although they contain lead, are ROHS exempt under Article 58(2).

Here is the MSDS of the solder and the solder flux we use and recommend in our kit.


Packaging Materials

There are thin layers of epoxy between each material; but for modeling purposes this layer can be ignored (<0.02 mm thick). The operating temperature range for sealed products is -40 to 120 C due to the epoxy used. Higher temperature, up to 150 C, is available with alternative epoxy.  

Properties Units FR4 Copper Polyimide 304 Steel Polysulfone Polyester Brass
Young’s Modulus GPa  26 110 4.1 193 5.72 3.65  100
Poisson’s ratio   0.17 0.34 0.34 0.29 0.4 0.48 0.32 
Density g/cc 1.9 8.93 1.81 8.00 1.37 1.38 8.30 
Ultimate Tensile Strength  MPa 368 210 231 505 81 177 800
Tensile Yield Strength MPa 340 33.3 90 215 87.9 92.8 500 
Thermal Expansion Coefficient µm/m-C 15  16.4  34.3 17.3 31  17 22.0 
Thermal Conductivity W/m-K 0.4 398 0.26 16.2 0.26 0.15 200
Specific Heat J/g-C 0.6 0.39 1.09 0.5 910 1.17 0.38
Maximum Operating Temperature C 130 1083 275 1400 160 220 750