fused quartz glass

Key properties of fused silica glass

Density: 2.20 grams per cubic centimeter

Young's modulus: 72 GPa

Poisson's ratio: 0.17

Compressive strength: approximately 1.1 GPa

Coefficient of thermal expansion (CTE): 0.55 × 10 ^ -6/° C (20 ° C to 320 ° C)

Thermal conductivity: 1.4 W/m · K at room temperature, can withstand temperatures up to 1200 ° C in continuous use, and can withstand 1700 ° C in short-term use.

Thermal shock resistance: Due to low thermal expansion, it has excellent resistance to rapid temperature changes.

Optical properties: Extremely high transparency over a wide wavelength range from ultraviolet (UV) to infrared (IR)

Refractive index: 1.458 at 589.3nm (sodium D-line)

Fused silica glass is a multifunctional material with excellent thermal, mechanical and optical properties. Its low thermal expansion, high thermal resistance, and excellent chemical stability make it suitable for various high-performance applications in industries such as optics, photonics, semiconductor manufacturing, and aerospace