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Products » Piezoelectric Ceramic » Piezoelectric Ceramic Materials


Bochuang has several types of piezoelectric ceramic materials available, the standard piezoelectric ceramic material value as follow.  
Typical values of standard piezoelectric ceramic materials. 

Material types

BaTiO3

PZT-2

PZT-4

PZT-8

PZT-5

Properties

Items

BT-1

PZT-2

PZT-4A

PZT-4D

PZT-4E

PZT-8

PZT-5A

PZT-5B

PZT-5J

PZT-5H

PZT-5X

Dielectric constants

ET33 /E0

1500 

560

1150

1300

1650

1000

1800

2300

2800

3200

4400

Dissipation factor[%]

tanδ

0.50 

0.40

0.50

0.50

0.50

0.20

1.50

1.50

1.30

1.10

1.50

Coupling coefficients

Kp

0.35 

0.54

0.58

0.60

0.62

0.57

0.62

0.62

0.65

0.72

0.72

K33

 

 

0.69

0.71

0.70

0.68

0.71

0.72

0.72

0.76

0.78

K31

 

 

0.33

0.33

0.35

0.34

0.34

0.35

0.38

0.40

0.40

Piezoelectric charge

d33

150 

230

300

320

400

280

450

480

550

640

700

constants[pC/N]

d31

 

 

-120

-145

-140

-105

-175

-210

-258

-283

-322

Piezoelectric

g33

11.4 

39

23.5

31.7

24.5

31

28.2

24.5

20.7

21.1

19.1

Voltage constants

g31

 

 

-11.5

-12.8

-10.5

-11.9

-11

-10

-9.6

-9.3

-8.2

[X10-3Vm/N]

Mechanical Q

Qm

2000 

1600

600

800

400

800

60

60

80

60

60

Frequency constants

[Hz/M]

Nt

2680 

 

2050

2010

 2015

2090

2150

2100

2160

2200

2210

Np

3160

 

2235

2180

 2120

2330

2020

1990

1900

1950

1975

N31

 

 

1600

1560

 1650

1670

1400

1420

1400

1400

1450

Elastic constants

YE11

 

 

7.9

7.5

 7.8

8.6

6

7.4

5.9

6

6.1

[X1010 N/m ]

YE33

 

 

6.6

6.2

 6.4

7.1

5.3

5

4.8

4.3

4.3

Poison's ratio

 

0.30 

0.32 

0.33

0.35

0.30

0.33

0.35

0.35

0.35

0.34

0.35

Curie temperature[]

Tc

110

310 

320

310

300

310

310

305

260

250

185

Density [g/cm3 ]

r

5.70 

7.60

7.74

7.73

7.50

7.73

7.72

7.74

7.65

7.60

7.60


Material description: Hard, Soft,lead-free and Custom Materials.

• Hard Materials: PZT-2,PZT-4,PZT-8
  Hard or high power ceramics can withstand high levels of electrical excitation and 
  mechanical
  stress. These materials are suited for high voltage or high power generators and 
  transducers. (EX: PZT-4 for ultrasonic clearing ,fog discs and humidfy transducer,
  PZT-8 for ultrasonic welding.)
• Soft Materials: PZT-5 Soft or high sensitivity ceramics feature high sensitivity  and
  permittivity,  but under high drive conditions are susceptible to self-heating beyond 
  their operating temperature range. These ma-
  terials are used in various sensors,  low-power motor-type transducers, receivers,  
  and low power generators.(EX: PZT-5A  accelerometer transducer, PZT-5H for medical 
  transducer,PZT-5X for actuator.)
• Lead-free material BT-1 most apply for fish-finder transducer and other marine testing
  fixture.
• Custom Materials
  Several ceramic materials have been formulated to meet the particular needs of 
  specific applications.
Equivalent table for manufacture designation:

Bochuang

BT-1

PZT-4D

PZT-8

PZT-5A

PZT-5J

PZT-5H

Navy

IV

I

III

II

V

VI

Industry

 

PZT-4

PZT-8

PZT-5A

PZT-5J

PZT-5H

MOTOROLA

 

 

 

3195

 

3203

APC

 

840

880

850

855

856

Morgan Electroceramics

3

4

8

5A

5J

5H

EDO

EC-31

EC-64

EC-67

EC-65

 

EC-70

High Temperature Piezoelectric Ceramic

Typical values of high temperature piezoelectric ceramic materials

Properties

Materials

PT

K81

K85

PNA

HT

Dielectric constants

E33T/E0

160

350

650

230

134

Dissipation factor (%)

tanδ

0.8

0.6

1.7

0.7

0.1

Coupling Coefficients

Kp

0.08

0.29

0.28

0.04

0.05

Kt

0.44

0.3

0.4

0.41

0.3

Piezoelectric Charge Constants (pC/N)

d33

48

85

160

74

18

Piezoelectric voltage constants (X10-3Vm/N)

g33

33.8

27.2

29

36.4

15.2

Mechanical Q

Qm

50

15

30

16

7800

Frequency contents(Hz.M)

Nt

2100

1720

1700

1600

2590

Poison's ratio

qE

0.28

0.41

0.41

0.19

0.24

Curie temperature()

Tc

450

400

405

560

850

Density (g/cm3)

r

7.7

5.4

5.5

6

7.2

 Above materials are used as design reference only, standard tolerances are approximately
±20%.  Material properties are measured based  on the standard IEEE and DOD definitions
and measuring techniques. All data here represent nominal characteristics (20+/-1 oC) 72 hours after polarization.

 
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