Quartz Disc
Quartz discs are precision optical and industrial components manufactured from high-purity fused quartz material. With silicon dioxide (SiO₂) content typically exceeding 99.9%, they exhibit exceptional optical transparency, extremely low coefficient of thermal expansion, and outstanding chemical stability. These discs demonstrate high light transmission across ultraviolet to infrared spectral ranges, particularly offering irreplaceable transparency advantages in the UV spectrum.
- Custom and standard options available.
- Fast lead times guaranteed.
- High performance at a competitive price.
Quartz Disc Data Sheet
| Color: | White |
| Shape: | Round |
| Dimension: | Customized |
| Chemical Formula: | SiO2 |
Quartz Disc Description
Quartz discs are precision optical and industrial components manufactured from high-purity fused quartz, featuring an ultra-low coefficient of thermal expansion (approx. 0.5×10⁻⁶/℃), excellent optical transparency across UV to IR spectra, and outstanding chemical stability. With remarkable high-temperature resistance enabling stable long-term use above 1000℃, strong thermal shock resistance, high hardness, and low dielectric loss, these discs serve as photomask substrates and etching process windows in semiconductor fabrication, optical windows/laser substrates in optoelectronic systems, and critical components in high-temperature viewports, analytical instruments, and aerospace observation equipment. They can be further processed through precision polishing and coating to meet stringent requirements for light transmittance, environmental durability, and dimensional accuracy.
Quartz Ceramic Material Properties
| Purity (%) | >99.8 | >99.5 |
| Density (g/cm3) | 1.9-1.95 | 1.9-1.95 |
| Flexture strength (MPa) | 28 | 28 |
| Compressive strength (MPa) | >50 | >50 |
| Bending strength (MPa) | 25 | 25 |
| Maximum working temperature (℃) | 1650 | 1650 |
| Thermal conductivity (W/m*K) | <1 | <1 |
| Thermal expansion coefficient (/℃) | 8.5*10-7 | 8.5*10-7 |
| number of use | ≥10 | ≥10 |
Quartz Disc Features
- High optical transparency – Excellent light transmission from UV to IR.
- Ultra-low thermal expansion – Maintains dimensional stability under temperature changes.
- Thermal shock resistance – Withstands rapid temperature cycling without damage.
- High temperature resistance – Continuous operation up to 1100°C.
- Chemical inertness – Resists most acids and solvents (except HF).
- Excellent electrical insulation – Low dielectric loss at high frequencies.
- High hardness – Mohs 7, resistant to scratching and abrasion.
- Laser damage resistant – Suitable for high-power laser applications.
- Dimensional precision – Can be manufactured to tight tolerances.
- Surface versatility – Compatible with polishing and coatings.
Quartz Disc Applications
- Semiconductor Manufacturing – Used as photomask substrates and etching chamber windows.
- Optical & Laser Systems – Serve as laser windows, lenses, and optical substrates.
- Analytical Instruments – Applied in spectroscopy cells and lab reactor windows.
- High-Temperature Viewing – Act as viewports in furnaces and vacuum systems.
- Medical & Biotech Devices – Used in diagnostic tools and sterilization components.
- Industrial Monitoring – Provide observation windows in harsh process environments.
- Telecommunications – Function as fiber optic component substrates and covers.
Quartz Ceramic Packaging
Quartz ceramic products are typically packaged in vacuum-sealed bags to prevent moisture or contamination and wrapped with foam to cushion vibrations and impacts during transport, ensuring the quality of products in their original condition.
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- SAFETY DATA SHEET (SDS) -Quartz Disc
FAQ
What material are quartz discs made of?
Quartz discs are made from high-purity fused quartz (silicon dioxide), typically exceeding 99.9% purity.
How high temperatures can quartz discs withstand?
They can withstand continuous temperatures up to 1100°C, with short-term exposure to even higher temperatures.
What are the light transmission properties of quartz discs?
They provide excellent light transmission from UV through visible to IR spectra, particularly in the UV range.
What surface treatment options are available for quartz discs?
Available treatments include optical polishing, coatings (AR, reflective, etc.), and chemical etching.
What are the main uses of quartz discs in the semiconductor industry?
Primarily used as photomasks, wafer carriers, and process chamber viewports.
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