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Item |
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Melting
Point |
1650° C |
|
Crystal
System |
Trigonal |
|
Point
Group |
3m |
|
Crystal
Density |
7.465
x 103
kg / m3 |
|
Curie
Temperature (Tc) |
603.5 ± 5.5°C |
|
|
Heat Capacity (Cp) |
100
J / k.mol |
|
Dielectric
Constants |
(T11) |
53.6 |
(T33) |
43.4 |
|
Elastic
Constants |
(CE11) |
2.331
x 1011
N / m2 |
(CE12) |
0.464 |
|
(CE13) |
0.852 |
|
(CE14) |
-0.161 |
|
(CE33) |
2.761 |
|
(CE44) |
1.029 |
|
Piezoelectric
Strain Constants |
(e15) |
2.63
C / m2 |
(e22) |
1.84 |
|
(e31) |
-0.11 |
|
(e33) |
1.93 |
| Description | Propagation | Design | Surface Wave Velocity (m/s) | Coupling Coefficient k2 (%) | Group Delay Time Temp Coefficient (ppm/°C) | Propagation Loss of SAW (dB/cm) |
| 36 ° Y - Cut | X - Axis | SSBW | 4160 | 5.0 | 28 ~ 32 | - |
| 42° Y - Cut | X - Axis |
SSBW
|
4022 | 7.6 | 40 | - |
| X - Cut | 112.2 Y Direction | SAW | 3290 | 0.75 | 18 | - |
|
SAW
= Surface Acoustic
Wave
SSBW = Surface
Skimming Bulk Wave
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Plate
Orientation |
Wave Type |
Coupling
Factor |
Resonance Frequency
Constant (MHz-mm) |
X |
S |
0.44 |
1.906 |
Z |
E |
0.19 |
3.040 |
36° Y - Cut |
QE |
- |
- |
163° Y - Cut |
QS |
- |
- |
E
= extensioal S
= shear QE
= quasi - extensional
QS
= quasi - shear |
|||
rT13 |
8.4 |
rS13 |
7 |
rT22 |
- |
rS22 |
1 |
| rT33 |
30.5 |
rS33 |
30.3 |
rT51 |
- |
rS51 |
20 |
d22
/ l d36KDP
l |
4.4 |
d31/ l d36KDP l |
-2.7 |
d33/ l d36KDP l |
-4.1 |
no |
2.1787 |
ne |
2.1821 |
|
no:
TE mode ne:
TM mode |
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