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Introduction

The piezoelectric effect describes the relation between a mechanical stress and an electrical voltage in solids. The piezoelectric ceramic is a functional material that can convert mechanical energy to electrical energy with very high efficiency.
It is reversbile: an applied mechanical stress will generate a voltage and an applied voltage will change the shape of the solid by a small amount (up to a 4% change in volume).

Characteristics

  • Various shape of piezoelectric ceramics
  • Uniform microstructure (Good mechanical strength)
  • Excellent energy conversion efficiency
  • Excellent mass production

Applications

Classification Products Classification Products
Telecommunication parts Resonator Appliance parts Ignitor
Filter(KHz) Buzzer Sounder
Filter(MHz) Transformer (Inverter)
SMD type filter Medical instrument parts Hifu
Actuator Linear actuator Ultrasonic Probe
Sensor Ultrasonic sensor Hydrophone
Ultrasonic Position sensor Etc. Ultrasonic Motor
Shock Sensor Mirror Tilter

Piezoelectric characteristics

Piezoelectric materials for ultrasonic transducer, hifu

category unit ECO DM LAB
DM1 DM2 DM3
Relative Dielectric Constant at 1kHz, K33T 2000 1320 1350
Dielectric Loss at 1kHz, Tanδ % 3.0 0.15 0.15
Electro-mechanical coupling Coefficient, kp 0.69 0.61 0.62
Mechanical Q value 70±20 2000±200 2000±200
Curie Temperature, Tc 340 320 320
Piezoelectric Charge constant, d33 pC/N 550~600 310 320
Application Sensor Ultrasonic Cleaners, Piezoelectric transformers, Actuators for high power

Piezoelectric materials for medical instrument

category unit ECO DM LAB
DM4 DM5 DM6
Relative Dielectric Constant at 1kHz, K33T 4400±100 3900±100 3300±100
Dielectric Loss at 1kHz, Tanδ % 302 3.0 2.5
Electro-mechanical coupling Coefficient, kp 0.69 0.65~0.66 0.65
Electro-mechanical coupling Coefficient, kt 0.51 0.55 0.50
Mechanical Q value 41±5 55±5 55±5
Curie Temperature, Tc 184 225 230
Piezoelectric Charge constant, d33 pC/N 810 760 710
Application Sensor Medical ultrasonic probe

Piezoelectric materials for energy harvesting

category unit ECO DM LAB
DME
Relative Dielectric Constant at 1kHz, K33T 750±20
Dielectric Loss at 1kHz, Tanδ % 3.2
Electro-mechanical coupling Coefficient, kp 0.65
Mechanical Q value 70±5
Curie Temperature, Tc 370
Piezoelectric Charge constant, d33 pC/N 350
Piezoelectric Charge constant, d31 pC/N -181
Piezoelectric Charge constant, g33 10-3 Vm/N 53
Piezoelectric Charge constant, g31 10-3 Vm/N -27
d33X g33 (Iongitudinal mode FoM) 10-15 (㎡/N) 18,600~21,000
d31X g31 (Transverse mode FoM) 10-15 (㎡/N) -4,960~5,600
Application Energy harvesting Ignitor