BM200

BM200 - Lead Zirconate Titanate

Overview
BM200 is a lead zirconate titanate composition that has a low dielectric loss combined with excellent piezoelectric properties. The properties make it attractive for applications requiring extreme mechanical drive amplitudes. The material can also be exposed to highly-repetitive quasi-static loads.

Features

  • Low dielectric loss
  • Excellent piezoelectric properties

Applications

  • Large mechanical drive amplitudes 
  • Sonar projectors
  • Hydrophones
  • Depth sounders
  • Communication
  • Linear arrays
  • Level, flow measurement
  • Flaw detection (NDE)
  • Thickness measurement
  • Accelerometers
  • Actuators
  • Transducers
  • Sterilizers
  • Cleaners
  • Degreasers
  • Alarms 

 

PROPERTY SYMBOL BM200 UNITS
Electrical1      
Relative Dielectric Constant   KT33 1080 —
Dissipation Factor   Tan d 0.3 %
Piezoelectric
Coupling Factor   kp 0.6 —
  k31 0.31 —
  k33 0.64 —
Charge Constant   d31 -100 10-12 C/N
  d33 250 10-12 C/N
Voltage Constant   g31 -10.0 10-3 Vm/N
  g33 26 10-3 Vm/N
Mechanical Quality Factor   QM 1000 —
Frequency Constants 2   Np 2350 Hz.m
  N1 1770 Hz.m
  N3 1900 Hz.m
Elastic Modulus
Compliance   SE11 10.8 10-12 m2 /N
  SE33 15.4 10-12 m2 /N
Density   P 7.6 g/cm3
Curie Temperature   Tc 330 °C
Ageing Characteristics 3 (% change/time decade)
Coupling Factor   kp -2.5 —
Dielectric Constant   kT33 -6 —
Frequency Constant   Np

1.5

 Hz.m

BM300 Series ceramics

BM300 Series ceramics

Notes:
1  Low field parameters;
    measured at 1 KHz

2  NP - Planar
    N1 - Longtitudinal
    N4 - Thickness

3  Reference point of time;
    24 hours after polarization