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PMNT Piezoelectric Crytal

Perovskite type relaxor-based ferroelectric single crystals of lead magnesium niobate titanate (Pb(Mg1/3Nb2/3)O3-PbTiO3, PMNT) and lead zinc niobate titanate (Pb(Zn1/3Nb2/3)O3-PbTiO3,PZNT) are attractive piezoelectric materials due to their excellent piezoelectric properties. PMNT single crystals with d33>2000pC/N and  k33>92%  offer great potential as the novel next-generation super-high performance piezoelectric material in a very broad range of applications, such as high-resolution medical  ultrasonic  diagnostic equipments , undersea sonars, high strain piezoelectric actuators and ultrasonic motors.
We have grown large and high-quality PMNT single crystals since 1997 using the modified Bridgman technique. Now we are in the mass production of high quality PMNT single crystals with the size of Φ55mm×80mm, and are capable to provide PMNT crystal piezoelectric elements with excellent piezoelectric performance to meet various applications. Meanwhile, we are also capable to produce other high-quality relaxor-based ferroelectric single crystals, such as PZNT, PINT, PFMNT, PSMNT, and PFNT.
 We have also found excellent pyroelectric and electro-optic performance of PMNT single crystals after special processes. Thus, we could provide versatile relaxor-based ferroelectric single crystals to meet different application areas, such as piezoelectric devices, electro-optic modulation devices, pyroelectric devices for IR and UV detecting and imaging, and other complex effects, such as high performance magnetoelectric laminates and devices.  We are capable to meet the requirements upon request.
 

Typical Product Parameters
Piezoelectric PMNT Crystal
Electro-optic PMNT Crystal
Pyroelectric PMNT Crystal
Longitudinal and thickness mode:
 
 
 
d33
15002500pC/N
no
2.620632.8nm
Pyroelectric coeff.:
12.8×10-4C/m2K
Freq. const. N33
660 kHz×mm
Ne
2.601632.8nm
Dielectric const.:
500  (1kHz)
Freq. const. Nt
1800 kHz×mm
EO coeff. r33
70 pm/V
Dielectric loss:
<0.5% (1kHz)
k33
9094%
r13
25 pm/V
Specific heat c ':
2.5×106J/m3K
kt
5862%
rc
44.4 pm/V
Thermal diffusivity:
3.8×10-7m2/s
ε33T
50007000(1kHz)
Absorption Edge:
400 nm
Current response Fi
5.12×10-10Am/W
tanδ
<0.7%(1kHz)
Transmission:
70%
Voltageresponse Fv
0.11 m2/C
Lengthwise mode
Reflection Loss:
20
Detectivity figure Fd
10.2×10-5Pa-1/2
-d31
18002500 pC/N
Work threshold:
160 ºC
Work threshold:
90 ºC
Freq. const. N31
520 kHz×mm
 
 
 
 
k31
92~95%
 Density
 8.1 g/cm3 (RT
Shear mode
Size
Wafer max: 40×40mm (50mm for one dimension)
d15
5000~7000 pC/N
 
Bulk: 30×30×30mm(40mm for one dimension) 
Freq. const. N15
1200 kHz×mm
Note: Special shape, size and cut components are available upon request.
k15
9497%
  
 
Electric-field induced strain
 
Linear strain
0.37%2kV/mm
Maximum strain
1.8%  7kV/mm
Work threshold
85 ºC
 
 
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