Fused Silica – SiO2

lenses, windows, mirrors, filters and prisms


Transmission Range 0.2 – 4.5 µ
Crystal Structure
Cleavage Plane None
Colour Colourless
Density 32.202
Melting Point (°) 1710 (Softening Point)
Reflection Loss 6.3% (2µ) for 2 surfaces
Solubility index Insoluble
Hardness (Knoop) 461.0
Thermal Conductivity (cal/cm sec°C) 2.82×10-3 (41°C)
Thermal Expansion coefficient (/°C) 0.5×10-6 (20-900°C)
Fused Silica (SiO2) windows and Fused Silica (SiO2) lenses

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