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Quartz glass

Quartz glass's Spectra

Quartz glass's Spectra
 Optical constants of Quartz glass

A variety of optical quartz glass can achieve the highest category
  ZS-1 ZS-2 HS
Spectral characteristics
The average transmittance
180-2500nm 200-2500nm 260-3500nm
90% 85% 85%
Bubble class 0 2 2
Birefringence 1-2 1-2 1-2
Grain structure 1 2 2
Stripe 1-2 1-2 2
Uniformity 1-2 2 2
Fluorescence 1 2 2
Radiation Performance Does not change color Slight discoloration Change color

Physical properties of quartz glass

Table 1.
Mechanical properties Standard value
Density 2.2g/cm3
Compressive strength 1100Mpa
Bending strength 67Mpa
Tensile strength 48Mpa
Poisson's ratio ¦Ì 0.14¡«0.17
Young's modulus E 72000Mpa
Rigidity modulus 31000Mpa
Mohs hardness 5.5¡«6.5

Table 2.
Thermal properties Standard value
Transformation point 1280¡æ
Softening point 1780¡æ
Annealing Point 1250¡æ
Specific heat(20¡«350¡æ) 670J/kg.¡æ
Thermal conductivity(20¡æ) 1.4W/m.¡æ
Index of refraction 1.4585
Coefficient of thermal expansion 5.5×10-7cm/cm. ¡æ
Thermal processing temperature 1750¡«2050¡æ
Short-term use temperature 1300¡æ
Long-term use temperature 1100¡æ
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