PiezoTechnologies K-81



  Basic Information


Density:

ρ :
6.20
g/cm3


Curie temperature:

TC:
400
°C


Material class:

Lead Metaniobate

Reviewed:

Yes


Z:
19
MRayl



vs:
3100
m/s



α :
1.30
*10-6 K-1


Description:

Low mechanical Q makes K-81 well suited for use in flaw detectors, thickness gages and in applications where a broad bandwidth is desirable. Negligible aging of the piezoelectric constant increases the stability and reliability of transducers made from K-81. The high stability of dielectric constant and piezoelectric constant with variations of temperature and pressure make K-81 well suited for deep water and High Temperature transducer applications.

   Electric Properties



ρ:
101300
Ωm



d15:
95.0
*10-12 C/N

d31:
-7.0
*10-12 C/N

d33:
85.0
*10-12 C/N



g15:
31.0
*10-3 Vm/N

g31:
-2.6
*10-3 Vm/N

g33:
32.0
*10-3 Vm/N




tan δ:
0.010
@1000
Hz


ε33T:
300



kt:
0.33

k15:
0.25


   Elastic Properties



Y33E:
6
*1010 N/m2



NT:
1570
Hzm


Availability


Piezo Technologies
http://www.piezotechnologies.com



Applications


High Temperature Applications
Non-Destructive Testing
Thickness Gauges