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| Item | ||
| Melting Point | 1253° C |
|
| Crystal System | Trigonal |
|
| Point Group | 3m |
|
| Crystal Density | 4.647 x 103 kg / m3 |
|
| Curie Temperature (Tc) | 1133 ± 3°C |
|
| Heat Capacity (Cp) |
89 J / k.mol |
|
| Dielectric Constants | (T11) |
85.2 |
(T33) |
28.7 |
|
| Elastic Constants | (CE11) |
2.03 x 1011 N / m2 |
(CE12) |
0.573 |
|
(CE13) |
0.752 |
|
(CE14) |
0.085 |
|
(CE33) |
2.424 |
|
(CE44) |
0.595 |
|
| Piezoelectric Strain Constants | (e15) |
3.7 C / m2 |
(e22) |
2.5 |
|
(e31) |
0.23 |
|
(e33) |
1.33 |
| Description | Propagation | Design | Surface Wave Velocity (m/s) | Coupling Coefficient k2 (%) | Group Delay Time Temp Coefficient (ppm/°C) | Propagation Loss of SAW (dB/cm) |
| 127.86° Y - Cut | X - Axis | SAW | 3980 | 5.5 | 75 | - |
| 64° Y - Cut | X - Axis | L, SAW |
4742 | 11.3 | 70 | - |
| 41° Y - Cut | X - Axis | L, SAW | 4792 | 17.2 | 50 | - |
| Y - Cut | Z - Axis | SAW | 3488 | 4.9 | 94 | 0.31 (1GHz) |
| SAW = Surface Acoustic Wave L, SAW =Leaky SAW | ||||||
Plate Orientation |
Wave Type |
Coupling Factor |
Resonance Frequency Constant (MHz-mm) |
X |
S |
0.68 |
1.838 |
Z |
E |
0.17 |
3.615 |
36° Y - Cut |
QE |
0.49 |
3.300 |
163° Y - Cut |
QS |
0.62 |
1.866 |
E = extensional S = shear QE = quasi - extensional QS = quasi - shear |
|||
rT13 |
10 |
rS13 |
11 |
rT22 |
6.8 |
rS22 |
3.4 |
rT33 |
32.2 |
rS33 |
36.7 |
rT51 |
32 |
rS51 |
18.2 |
d22 / l d36KDP l |
6.5 |
d31 / l d36KDP l |
-12.3 |
d33 / l d36KDP l |
-86 |
no |
2.2880 |
ne |
2.2030 |
| no: TE mode ne: TM mode |
|