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| Product 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: | Electro Optical Q Switch LGS Crystal,Lanthanum Gallium Silicate LGS Crystal,SGS Lanthanum Gallium Silicate Crystal |
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Introduction :
Langasite crystal (La3Ga5SiO14, LGS) is a multifunctional intraocular crystal, belonging to the space group P321, point group 32, has been reported to be promising new piezoelectric materials for fabrication of surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices. The devices made of langasite crystal could be used at high temperatures up to 900℃ because of its high thermal stability.
| 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: Zheng
Tel: +86 18255496761
Fax: 86-551-63840588
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