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| Chemical Formula: | La3Ga5SiO14 | Growth Method: | Czochralski |
|---|---|---|---|
| Hardness: | 6.6 Moh's | Density: | 5.754 G/cm3 |
| Melt Point: | 1470℃ | Thermal-expansion Coefficient: | α 11=5.10 α 33=3.61 |
| Acoustic Velocity, SAW: | 2400 ( M/sec ) | Frequency Constant, BAW: | 1380 ( KHz/mm ) |
| Temperature Frequency Coefficient: | 1.6х10-5 | ||
| High Light: | Piezoelectric La3Ga5SiO14,Piezoelectric LGS Crystal,Thermal Stable LGS Crystal |
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The electromechanical coupling coefficient of LGS crystal is three times that of quartz. It is a piezoelectric crystal material with excellent properties. It has good development prospects for the production of bulk acoustic wave (BAW) filters and surface acoustic wave (SAW) filters.
For a long time, the research on LGS crystal has mainly focused on its piezoelectric properties. Since LGS crystal belongs to a triangular crystal system with 32 point groups, it has not only piezoelectric properties, but also optical rotation, electro-optics, and other properties, which can be used to produce electro-optical Q switches.
| Crystal Structure | regional system, group 33 a= 8.1783 c = 5.1014 |
| Growth Method | Czochralski |
| Hardness | 6.6 Moh's |
| Density | 5.754 g/cm3 |
| Melt Point | 1470 o C ( phase transition point: N/A) |
| Thermal expansion (x10-6/ oC) | α 11: 5.10 α 33: 3.61 |
| Acoustic velocity, SAW | 2400 ( m/sec ) |
| Frequency constant, BAW | 1380 ( kHz/mm ) |
| Piezoelectric coupling | K2 (%) BAW: 2.21 SAW: 0.3 |
| Dielectric Constant | ε11/ε0=18.27 ε33/ε0=56.26 |
| Piezoelectric Strain Constant | d11=6.3 d14=5.4 |
| Inclusions | N0 |
Contact Person: Chen Dongdong
Tel: +86 18326013523
Fax: 86-551-63840588
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