Sapphire Tubes Optical Al2O3 Tubes High Hardness Customized Tubes Transparent
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Sapphire Optical Tubes Feature
+ allow to be customized by design artwork
+ made by synthetic sapphire (99.999%Al2O3)
+ high-hardness 9 Mohs, outstanding scratch resistance and chemical stability
+ great transmittance, about 80%-90% in the visible light spectrum
(approximately 400-700 nm).
+ widely used for high-temperature, chemical-resistant, and optical applications
Description of Sapphire Optical Tubes
Sapphire tube is a tubular material made of high-purity aluminum oxide (Al₂O₃) with excellent optical and mechanical properties.
Its Mohs hardness reaches 9, second only to diamond, giving it extremely high wear resistance and scratch resistance.
In addition, sapphire tubes show excellent light transmittance in the spectral range of 200nm to 5500nm, are almost unaffected by temperature changes, and can work stably in high temperature environments up to 1900°C.
The corrosion resistance of sapphire tubes makes it widely used in the chemical industry and suitable for use in harsh environments.
Its excellent electrical insulation properties make it an important material in semiconductor manufacturing, and it is often used as components such as plasma vacuum tubes and process gas nozzles.
In the field of analytical instruments, sapphire tubes are used in equipment such as nuclear magnetic resonance spectrometers and mass spectrometers, because of their high light transmittance and stability, ensuring the accuracy of measurements.
Sapphire tubes are also suitable for infrared, ultraviolet lighting and high-intensity lamps, showing a wide range of application potential.
Its manufacturing process usually involves high-temperature melting and crystal pulling technology to ensure the integrity and high purity of the crystal structure.
With the advancement of science and technology, the importance of sapphire tubes in modern industry and scientific research has become increasingly prominent.
More Details of Sapphire Tube
| Product Name | Sapphire Optical Tubes |
| Hardness | 9 Mohs |
| Melting Point | 2,050°C (3,722°F) |
| Density | 3.98 g/cm³ |
| Thermal Conductivity | 25 W/m·K at 20°C |
| OD/ID/Length | 20/16/320 |
| Refractive Index | 1.76 at 589 nm |
| Optical Transparency | 5.3 × 10⁻⁶ /°C |
| Electrical Resistivity | > 10¹⁴ Ω·cm |
| Poisson's Ratio | 0.25 |
Other samples of Sapphire Tube
*Also, we accept the cutomized one.
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FAQ
1. Q: Are sapphire tubes easy to break?
A: Sapphire tubes are strong due to their hardness but can be prone to breakage under high impact or stress due to their brittleness.
2. Q: Compared with the quartz tubes, what is the advantage of sapphire?
A: Compared with quartz tubes, sapphire tubes are much harder, much better performance and they can be used in harsh situations due to their higher temperature resistance and scratch resistance.
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