SiO2 Quartz Crystal
Quartz Crystal
(
SiO2
)| Eigenschaften | |
| Transmission Range % | 50 |
| Transmission Range | 0.15 - 4.1 µm (thickness 2mm) |
| Refractive Index | no = 1.543, ne = 1.552 @633 nm |
| Reflection Loss | 4.5% @0.633 µm |
| Density | 2.65 g/cm3 |
| Melting point | 1723°C |
| Molecular Weight | 60.06 |
| Thermal Conductivity | || C: 11.7 W/(m·K) @293K; ⊥ C: 6.5 |
| Spec. Heat Capacity | 744 J/(kg·K) |
| Thermal Expansion | || C: 7.97 · 10-6/K ; ⊥ C: 13.37 · 10-6 /K @273...353K |
| Hardness (Mohs) | 820 (Indenter load 100g) |
| Young's Modulus | || C: 97; ⊥ C: 76.5 GPa @25°C |
| Shear Modulus | 31.14 GPa |
| Bulk Modulus | 98 GPa |
| Elastic Coefficient | C11 = 86.6; C12 = 6.7; C13 = 12.6; C14 = 17.8; C33 = 106.1; C44 = 57.8 GPa |
| Dielectric Constant | || C: 4.27; ⊥ C: 4.34 @30 MHz 298K |
| Solubility in Water | unsoluble |
| Crystal Structure | Single crystal, synthetic |
| Crystal Type | trigonal, a = 4.9138 Å, c = 5.4052 Å |
| Poisson Ratio | 0.08 |
| Application | polarizing optics, piezoelectric components, VUV filter, FIR optics |
| Remarks | dextrorotatory Quartz is common, max. temperature for application > 1200°C, chemical constant, will be damaged by contact with HF and hot concentrated alkalines. Unsoluble in acids. |
| Remarkable |
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SiO2 – Quartz Crystal: Korth Kristalle - Vom Rohkristall zur hochpräzisen Optik. Durchblick für alle Wellenlängen - Seit 72 Jahren züchten wir Kristalle und fertigen daraus hochpräzise optische Komponenten für alle Wellenlängen vom IR- bis zum VUV-Bereich. Unsere Produkte kommen in allen Bereichen zum Einsatz, in denen eine hochentwickelte, präzise technische Ausstattung unerlässlich ist – von der Analytik bis hin zur Medizin- und Raumfahrttechnik.
Contact/Inquiry
Korth Kristalle
Am Jägersberg 3
24161 Altenholz
+49 (0)431 - 36 90 50
+49 (0)431 - 36 90 525
Remarkable
- Birefringent crystal with main applications as a polarizer, wave or retardation plate and VUV filter (steep absorption edge in the VUV)
- The standard is the crystalline modification alpha-quartz (deep quartz), which changes to beta (high) quartz at higher temperatures. The process is reversible but can lead to breaks or cracks in the material. You can still distinguish between left and right-handed quartz
- The manufacturing process is hydrothermal synthesis at high temperatures and pressures
Transmission spectrum 100mm