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Home > Advanced Piezoelectrics > Materials Selector

Piezo Technologies' Materials Specifications

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Symbol Property Composites K-12 K-15 K-81 K-83 K-85 K-180 K-181 K-182 K-270 K-278 K-300 K-350 K-500 K-600 K-700 Nova 3B
KT33 Free Dielectric Constant 900 to 2000 145 145 300 180 800 425 380 540 1300 1100 1450 1700 2700 3100 4000 215
KS33 Clamped
Dielectric Constant		 400 to 1280 140 140 270 145 630 225 225 310 665 650 710 830 1250 1350 2910 160
KT1 Shear Dielectric N/A N/A 165 261 277 660 723 500 780 1535 1220 1600 1650 2500 2610 3500 250
KS1 Shear Dielectric N/A N/A 164 240 260 600 400 370 570 885 800 1100 1000 1450 1400 1680 228
k33 Longitudinal Coupling Coefficient N/A 0.12 0.15 0.35 0.42 0.43 0.68 0.64 0.65 0.70 0.64 0.71 0.71 0.73 0.75 0.77 0.52
k31 Tansverse Coupling Coefficient N/A 0.02 0.02 <0.10 0.13 0.13 0.30 0.22 0.23 0.33 0.30 0.34 0.35 0.37 0.39 0.42 Not Detectable
k15 Shear Coupling Coefficient N/A 0.075 0.08 0.28 0.25 0.30 0.68 0.51 0.52 0.71 0.55 0.70 0.65 0.65 0.68 0.72 0.30
kt Thickness Coupling Coefficient 0.60 to 0.75 0.12 0.15 0.30 0.38 0.35 0.53 0.50 0.48 0.41 0.45 0.50 0.49 0.50 0.50 0.52 0.52
kp Planar Coupling Coefficient <0.01 0.07 0.06 <0.10 0.10 0.35 0.52 0.46 0.50 0.58 0.51 0.60 0.60 0.62 0.65 0.71 <0.01
kt/kp Ratio 60.000 to 75.000 N/A 2.500 3.000 3.800 1.094 1.020 1.090 0.960 0.830 0.880 0.830 0.820 0.810 0.770 0.730 20.600
d33 Piezoelectric Strain Constant (x 10-12 m/V) 300 to 650 ≥12 ≥18 85 60 180 180 150 180 270 240 350 380 500 600 700 70
d31 Piezoelectric Strain Constant (x 10-12 m/V) N/A -5 N/A -15 -15 -65 -60 -70 -80 -120 -95 -150 -170 -220 -250 -290 0
d15 Piezoelectric Strain Constant (x 10-12 m/V) N/A 10 14 105 54 160 350 390 330 490 325 500 575 700 730 950 60
dh Hydrostatic Constant
(x 10-12 m/V)		 N/A N/A 11 55 30 50 33 10 20 30 50 50 40 60 50 120 70
g33 Piezoelectric Voltage Constant (x 10-3 Vm/N) 37.00 9.40 14.50 32.00 38.00 27.00 44.00 45.00 37.00 26.00 25.00 26.00 25.00 21.00 21.00 20.00 37.00
g31 Piezoelectric Voltage Constant (x 10-3 Vm/N) N/A -4.00 -2.80 -7.00 -9.70 -10.00 -15.00 -15.00 -22.00 -11.00 -10.90 -10.00 -11.00 -9.00 -8.80 -9.00 0.00
g15 Piezoelectric Voltage Constant (x 10-3 Vm/N) N/A 6.70 9.70 31.00 22.00 27.00 50.00 49.00 65.00 38.00 29.00 39.00 37.00 25.00 28.00 28.00 23.00
SE33 Compliance at Constant Field (x 10-10 m2/N) 23.00 9.50 10.00 23.00 10.00 20.00 11.00 11.00 12.00 15.50 13.50 16.00 18.00 22.00 19.00 19.00 8.50
YE33 Young's Modulus at Constant Field
(x 1010 N/m2)		 5.50 10.50 12.00 5.50 13.00 4.60 7.10 9.00 8.40 6.50 7.40 5.50 5.40 4.50 5.00 5.00 12.00
QM Mechanical Q (Thickness)
Valid Frequency		 2 to 30 200 100 <15 650 <15 200 220 200 <200 200 400 75 70 50 30 300
QM Mechanical Q (Radial) N/A 750 1000 N/A N/A 20 400 900 750 500 1000 1000 75 70 80 60 N/A
D Q (Radial) Dielectric Loss / Dissipation Factor 0.030 0.004 0.010 0.010 <0.035 <0.020 0.030 0.004 0.004 0.008 0.004 0.004 0.020 0.020 0.020 0.025 0.015
Nt Thickness Frequency Constant
Hz-m (kHz-in)		 1395 to 1525
(54 to 60)		 2260
(89)		 2080
(82)		 1525
(60)		 2740
(108)		 1675
(66)		 2005
(79)		 2080
(82)		 2180
(86)		 2030
(80)		 2030
(80)		 2080
(82)		 1980
(78)		 2006
(79)		 2006
(79)		 2006
(79)		 2135
(84)
Np Planar Frequency Constant
Hz-m (kHz-in)		 N/A 2438
(96)		 2590
(102)		 1956
(77)		 3530
(139)		 1981
(78)		 2340
(92)		 2490
(98)		 2490
(98)		 2150
(85)		 2325
(92)		 2235
(88))		 2000
(79)		 2058
(81)		 2032
(80)		 2032
(80)		 2718
(107)
N15 Shear Frequency Constant
Hz-m (kHz-in)		 N/A N/A 1290
(51)		 970
(38)		 1725
(68)		 940
(37)		 1350
(53)		 1080
(43)		 1050
(41)		 1315
(52)		 1415
(56)		 950
(37)		 1080
(43)		 1050
(41)		 1100
(43)		 1150
(45)		 1400
(55)
Nc Circumferential Frequency Constant
Hz-m (kHz-in)		 N/A N/A 850
(33)		 1450
(57)		 2600
(102)		 1900
(75)		 1070
(42)		 880
(35)		 900
(35)		 1020
(40)		 1075
(42)		 1000
(39)		 880
(35)		 900
(35)		 880
(35)		 900
(35)		 2200
(87)
NL Transverse Length Frequency Constant
Hz-m (kHz-in)		 N/A N/A 1980
(78)		 1475
(58)		 2715
(107)		 1500
(59)		 1700
(67)		 1770
(70)		 1730
(68)		 1650
(65)		 1750
(69)		 1700
(67)		 1400
(55)		 1350
(53)		 1380
(54)		 1420
(56)		 N/A
N3L Parallel Longitudinal Frequency Constant
Hz-m (kHz-in)		 N/A N/A 2032
(80)		 1350
(53)		 1675
(66)		 1320
(52)		 1725
(68)		 1700
(67)		 1660
(65)		 1625
(64)		 1750
(69)		 1600
(63)		 1400
(55)		 1400
(55)		 1450
(57)		 1450
(57)		 2100
(83)
ρ Density (kg/m3 x 103) 4.20 to 5.20 6.90 7.20 6.20 4.50 5.70 7.70 7.70 7.70 7.50 7.60 7.70 7.70 7.65 7.65 7.80 7.65
ZA Acoustic Impedance (MRayL) 9.00 to 15.00 28.50 29.00 19.00 24.50 18.50 31.00 31.00 34.00 31.00 31.00 31.00 30.50 35.00 35.00 35.00 33.00
VS Sound Velocity (m/sec) 3200 to 3800 4100 4165 3050 5480 3350 4000 4060 4360 4065 4065 4060 3960 4615 4615 4010 4750
TC Curie Temperature
(°C)		 150 to 350 820 >600 400 200 300 350 360 330 325 300 300 360 245 230 210 350
Resistivity (ohm-m) Varies with composition
>109		 N/A >1011 1013 >109 >1010 >107 >1010 >1010 >1010 >1011 >109 >1010 >1010 >1010 >109 >5 x 109
CTE Coefficient of Thermal Expansion
(x 10-6 cm/cm/°C)
Valid Temperature Range		 Varies with composition & volume fraction TBD Poling Direction - 9.30 (50 - 500°C)
Transverse Direction - 8.80 (50 - 500°C)		 1.28
(25 - 400°C)		 N/A 1.62 3.60 2.88 3.06 3.60 3.60 6.84 3.60
(25 - 250°C)		 9.54 9.54 Poling Direction - 7.5 (50 - 100°C)
Transverse Direction - 9.9 (50 - 100°C)		 Increases in Thickness, Decreases in Diameter / Length
dave Average Grain Size (µm) N/A 5 to 10 7 to 10 10 to 15 5 to 7 7 to 10 5 to 7 5 to 7 5 to 7 5 to 7 5 to 7 3 to 5 5 to 7 3 to 5 3 to 5 2 to 5 3 to 5
  Max DC Field
(MV/m)		 0.40 N/A 0.20 0.64 0.50 0.64 0.50 0.60 0.55 0.60 0.65 0.65 0.55 0.45 0.40 0.40 0.80
  Vickers Hardness N/A N/A 300 220 390 280 160 385 440 430 410 450 330 385 390 410 475

NOTE:  All values are nominal unless otherwise noted.  Actual readings, measurements, and calculations will vary with part geometry.
All measurements are made in accordance with all relevant Military and Industry Standards including IEEE, ANSI, IEC.

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