Overview: Single Synthetic Crystal Quartz is grown by hydrothermal method in autoclaves. It has trigonal
crystal structure with right-handed or left-handed modification.
Quartz crystals have low stress birefringence and high refractive
index homogeneity. The optical transmission range of crystal quartz
is 0.2-2.5microns. Due to its piezoelectric properties, low thermal
expansion, good mechanical parameters and excellent optical
characteristics, crystal quartz is widely used in electronics,
precision and laser optics, fiber communications, X-ray optics,
pressure sensors and etc. General Specifications Of Crystal Quartz: | Dimension Tolerance | ±0.1mm | | Optical Axis Orientation | ±0.5° | | Surface Quality | 20/10 | | Clear Aperture | >90% | | Flatness | <λ/8@633nm | | Transmitted Wavefront Distortion | <λ/10@633nm | | Parallelism | Up to 1 arc second | | Coating | Upon Request |
Physical and Optical Properties of Crystal Quartz: | Transmission Range | 0.150-4.0µm | | Refractive Index | no=1.5350, ne=1.5438@1µm | | Density | 2.65 g/cm3 | | Melting Point | 1710°C | | Molecular Weight | 60.06 | | Thermal_Conductivity | || C: 11.7 W/(m·K) @ 20°C; ⊥C: 6.5 | | Specific Heat | 744 J/(kg·K) | | Thermal Expansion | || C: 7.97 x 10-6 /°C ; ⊥C: 13.37 x 10-6 /°C @ 0°-80°C | | Hardness (Mohs) | 7 | | Young`s Modulus | || C: 97; ⊥C: 76.5 GPa @ 25°C | | Elastic Coefficient | C11 = 86.6; C12 = 6.7; C13 = 12.4; C14 = 17.8; C33= 106.4; C44 = 58
GPa | | Dielectric Constant | || C: 4.27@30 MHz@25°C; ⊥C: 4.34 | | Solubility in Water | insoluble | | Type of Material | Single crystal, synthetic | | Crystal Structure | trigonal, point group 32, a=4.9138Å, c=5.4052Å |
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