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| Name: | Lanthanum Gallium Silicate (LGS) | Chemical Formula: | La3Ga5SiO14 |
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| 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: | BAW Devices LGS Crystal,5.754 g/cm3 Lanthanum Gallium Silicate Crystal,5.754 g/cm3 La3Ga5SiO14 LGS Crystal |
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Langasite - La3Ga5SiO14, is a piezoelectric crystal of gallogermanate family .it is new and excellent piezoelectric crystal for BAW and SAW devices due to its excellent spectroscopic and acoustic characteristics.LGS also can be used as an electro-optic crystal .The electro-optic Q-switch made by LGS is actually a new kind of rotation-electro-optical Q-switch. Because of the effect of optical rotation, it can be used as a practical switch and a good Q-modulation result can be obtained.
| Crystal Structure | rigonal 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: Zheng
Tel: +86 18255496761
Fax: 86-551-63840588
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