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SeriesComposite Piezoelectric Ceramics

Applicationsultrasonic detectors and NDT etc.

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Detail Introduction

Composite Piezoelectric Ceramics

Since the acoustic impedance of the piezoelectric ceramic is greatly different from that of the air, water, or organism, the acoustic wave is difficult to be incident. In order to solve this problem, various resins are compounded with the piezoelectric ceramic. After the composite, piezoceramic acoustic impedance is low, with good incident characteristics, and piezoelectric properties can be adjusted by the volume ratio of ceramic.


Main Applications and Parameters

Non-destructive Inspection

Medical Ultrasonic Detector

Long Distance Ultrasonic Transmitting and Receiving in Solid

Part NumberHTCT
External Diameterφ6~φ70mm
Length 10~80mm
Width10~30mm
Thickness1~15mm
Electrode Materialsilver/copper/gold
Recommended MaterialP-679.P-672.P-666


Electrical Data

Symbol

Main Materials

P-659

P-660

P-663

P-664

P-666

P-667

P-668

P-669

P-672

P-673

P-676

P-678

P-679

P-690

Piezoelectric coupling coefficien

kp

0.58

0.70

0.67

0.67

0.78

0.10

0.68

0.62

0.70

0.68

0.7

0.72

0.65

0.74

k31

0.32

0.39

0.38 

0.37

0.42


0.39

0.35

0.41

0.39

0.45

0.42

0.38

0.40

k33

0.60

0.73

0.70 

0.70

0.78


0.70

0.68

0.72

0.70

0.80

0.72

0.70

0.75

kt

0.42

0.46

0.45

0.45

0.50

0.45

0.46

0.44

0.46

0.46

0.50

0.47

0.46

0.48

Relative dielectric constant

εT33 / ε0

1100

3200

2200

2800

4500

180

2300

1400

3400

2200

6000

2750

1600

3800

Piezoelectric charge constant

d33×10-12C/N

280

700

400

480

780

70

430

250

600

430

850

540

320

710

d31×10-12C/N

-120

-350


-200

-350


-230

-130

-280

-230

-420

-260

-150

-360

Mechanical quality factor

Qm

100

60

80

500

60

2500

90

1000

80

90

60

80

1000

70

Frequency constant

fr·d     kHz·cm

230

190

 200

220

180


200

230

190

200

180

190

230

190

fr·t     kHz·cm

210

200

200




225

200


225



200

200

Temperature characteristics

| TKf| (-20~80)
×10
-6 / 

100

260

300

120 

400 

30 

150

100

300

100

400

200

100

260

| TKC| (-20~80)
×10
-6 / 

1500

4500

5000 

2500 

6000


1800

1500

4000

2000

6000

3000

1500

4000

Curie temperature

Tc

320

220

220

230

180

450

355

340

230

325

140

280

330

210

Dielectric loss

tgδ(%)

1.20

1.80

2.00

0.50

2.60

0.70

2.00

0.30

2.30

2.00

2.60

1.50

0.40

1.80

Dielectric loss

tgδ(400V/mm,%)








1.00





1.00



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Zhejiang Jiakang Electronics Co., Ltd.
浙江嘉康电子股份有限公司

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Fax:+86-573-82600916

E-mail:overseas_sales@jkelec.com

Address:No.1188 Jiahang Road, Jiaxing City, Zhejiang Province, China