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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: | Q Switch LGS Crystal,sensor LGS Crystal,Q Switch Lanthanum Gallium Silicate |
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Lanthanum gallium silicate crystal is referred to as LGS, which is a kind of multifunctional crystal with excellent performance. The dielectric, elastic and piezoelectric constants of LGS crystals are significantly higher than those of quartz, and the electromechanical coupling coefficient is 2 to 3 times that of quartz, which can be used to manufacture surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices. At the same time, LGS crystal can be used to make electro-optic Q switches, and the effect is comparable to that of DKDP crystal Q switches. The devices using LGS crystal as the material all have higher thermal stability.
| 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: Chen Dongdong
Tel: +86 18326013523
Fax: 86-551-63840588
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