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Customized High-Purity Quartz Products from China Suppliers - Factory Direct for Semiconductor and Optical Applications
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Mechanical & Physical Properties — Standard Values
| Mechanical Behavior | Standard Values |
|---|---|
| Density | 2.2 g/cm³ |
| Compressive Strength | 1100 MPa |
| Flexural Strength | 67 MPa |
| Poisson's Ratio | 0.14 ~ 0.17 |
| Young's Modulus | 72,000 MPa |
| Modulus of Rigidity | 31,000 MPa |
| Mohs Hardness | 5.5 ~ 6.5 |
| Transformation Point | 1280 °C |
| Softening Point | 1780 °C |
| Annealing Point | 1250 °C |
| Specific Heat (20 ~ 350 °C) | 670 J/kg·°C |
| Thermal Conductivity (20 °C) | 1.4 W/m·°C |
| Index of Refraction | 1.4585 |
| Low Thermal Expansion Coefficient | 5.5 × 10⁻⁷ cm/cm·°C |
| Thermal Processing Temperature | 1750 ~ 2050 °C |
| Short-Term Use Temperature | 1300 °C |
| Long-Term Use Temperature | 1100 °C |
| Material | Silicon Dioxide (Natural Quartz) |
| Color | Transparent or Colorless |
| Surface | No Air Bubble, No Line |
| Strain | 1270°C Fused Quartz Glass Brick |
| PPM Grade | Controlled 10 / 20 / 100 PPM |
| Shape | Circle |
| Thickness | 2 mm – 20 mm |
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Frequently Asked Questions
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What is the maximum long-term use temperature for this quartz glass material?
The material supports a long-term use temperature of up to 1100 °C, while it can withstand short-term exposure up to 1300 °C. This makes it highly suitable for demanding high-temperature industrial applications.
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What material is used, and why is it preferred for high-performance applications?
The material is Silicon Dioxide (Natural Quartz). It is preferred due to its exceptional thermal stability, very low thermal expansion coefficient (5.5 × 10⁻⁷ cm/cm·°C), high compressive strength of 1100 MPa, and excellent optical clarity.
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What thickness options are available for this quartz glass product?
The quartz glass is available in thicknesses ranging from 2 mm to 20 mm, offering flexibility for a wide range of engineering and optical applications.
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What PPM purity grades are available, and how does purity affect performance?
The product is available in controlled purity grades of 10 PPM, 20 PPM, and 100 PPM. Higher purity (lower PPM) grades are critical for semiconductor, optical, and precision laboratory applications where contamination must be minimized.
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What is the softening point of this quartz glass, and why does it matter?
The softening point is 1780 °C, which is significantly higher than standard glass. This property ensures the material maintains its structural integrity under extreme thermal conditions, making it ideal for furnace components, laboratory equipment, and high-temperature optical systems.
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Does this quartz glass have any surface defects such as bubbles or lines?
No. The surface quality specification confirms no air bubbles and no lines, ensuring optical clarity and structural uniformity. This is essential for applications requiring precise light transmission or consistent mechanical performance.