Terms and Conditions

Lead Zirconate Titanates

Performance, Quality, and Service for Every Application

  • Wide variety of material types
  • 100% inspection
  • Precision tolerances invited

For superior performance in your ultrasonic devices, select EBL lead zirconate titanate piezoceramics.

EBL offers an extensive range of both "hard" and "soft" lead zirconate titanate compositions. Hard materials exhibit low dielectric losses, high mechanical Q, and low dielectric constants. These materials are recommended for ultrasound therapy assemblies, cleaners, sonar projectors, and related applications in which the piezoceramic is exposed to high drive fields and/or mechanical stress. Soft materials provide high coupling coefficients and low mechanical Q for micropositioners, NDT and medical imaging transducers, hydrophones, and similar high sensitivity devices. Additionally, we will fabricate from any manufacturer's piezoceramic that you specify.

EBL's lead zirconate titanates are available with fired-on or electroless electrodes. Fired electrodes are applied to teh surface of the piezoceramic by screen-printing or airburshing, and then fused onto the ceramic at high temperature. Electroless electrodes are applied by an aqueous immersion process developed by EBL.

EBL Lead Zirconate Titanate Characteristics

Material Properties

EBL#1

EBL#2

EBL#3

EBL#4

EBL#5

EBL#6

EBL#9

EBL#23

EBL#25

Density g/cm3
7.5
7.5
7.45
7.5
7.7
7.45
7.6
7.8
7.7
Dielectric constant KT3
1300
1725
3450
1050
425
2750
1450
3800
1800
Mechanical Q
400
100
65
960
600
75
600
30
80
Dissipation % @ 1 KHz
0.4
2.0
2.0
0.4
2.5
2.0
0.4
2.4
1.8
Curie Temperature °C
320
350
190
300
350
220
320
250
350

d constant m/Vx10-12

d33
295
380
583
220
150
480
315
650
350
d31
-127
-173
-262
-95
-60
-260
-135
-320
-179
d15
506
584
730
330
360
670
---
---
---

g constant Vm/Nx10-3

g33
25.0
25.0
19.1
24.5
41.0
20.9
24.6
19.0
24.2
g31
-10.7
-11.5
-8.6
-10.5
-16.0
-9.8
-10.5
-9.0
-11.0
g15
39.8
38.2
28.9
28.9
50
35.0
---
---
---

Coupling coefficients

kp
0.60
0.62
0.64
0.52
0.52
0.63
0.60
0.75
0.63
k33
0.69
0.72
0.75
0.62
0.67
0.74
0.71
0.75
0.70
k31
0.36
0.36
0.38
0.31
0.30
0.37
0.34
0.44
0.30
k15
0.72
0.69
0.68
0.55
0.68
0.67
---
0.68
---

Frequency constants Hzm

Thickness
2026
1778
1765
2181
2050
1727
1990
2030
2050
Planar
2149
1994
1981
2311
2340
1943
2110
---
2020
Transverse
1321
1092
1105
1415
1750
1058
---
---
---

Industry Types

PZT-4
PZT-5A
PZT-5H
PZT-8
PZT-7A
PZT-5J
PZT-4D
---
---

EC-64
EC-65
EC-76
EC-69
---
EC-70
---
---
---

Navy Type

I
II
VI
III

V

II

polarization:

Thickness, shear, radial, or mixed modes. (+) polarity indicated

Geometries:

disc, rectangle, rod, washer, tube, D-shape, spherical focus, cylindrical focus, plano-concave, axicon, truncated cone

Dimensions Available:

Size: 0.06" min., 3" max.
Thickness Mode Frequency: 200 KHz to 20 MHz
Shear Mode Frequency: 250 KHz to 7.5 MHz
Cylindrical Radii: 1.0", 1.5", 2.0", 2.5", 3.0", and 3.94" standard
Spherical Radii: 0 to 33 diopter standard

Standard Tolerances:

Disc Diameter: up to 1.00" +0/-.003", 1.001" and up +0/-.005"
Rectangle and Squares: up to 1.00" +/-.005", 1.001" and up +/-.015"
Washers: Type 1-OD & ID +/- .002", Type 2-OD & ID +/- .005"
Thickness: up to 0.100" +/- .001", 0.101 and up +/- .003"

Thickness Mode Frequency:

+/- 5% to 10 MHz, +/- 10% above 10 MHz

Thickness Uniformity:

+/- .0003" up to 3.5" max dimension (flat parts)
+/- .0008" above 3.5" max dimension (flat parts)
+/- .001" for tubes or washers
+/- .0005" for spherical or cylindrical radius

Spherical Radius:

Quoted upon request

Electrodes:

Types: silver, gold, nickel or copper
Thickness: 0.0005" typical per side for fired electrodes, 0.0002" typical per side for electroless nickel, <100µ in typical per side for electroless copper or gold

Surface Finish:

35µ in rms typical for fired electrodes
32µ in rms typical for electroless nickel

Options:

wrap around electrodes or other special electrode patterns
3% frequency tolerance
lead wire attachment

Other dimensions, tolerances, electrodes, and options available upon request. Drawings or sketches are strongly urged. Dimensions above are for reference only and may not be available for all material compositions and geometries. All appropriate dimensions are inclusive of plating thickness.

NOTE: All values are nominal, actual production values may vary up to 20%.




EBL Products Inc.
22 Prestige Park Circle, East Hartford, CT 06108
PH (860) 290-3737 FAX (860) 291-2533
EMAIL eblpzt.paul@sbcglobal.net
Or eblproducts@gmail.com