Product/Service

High Purity Synthetic Fused Silica: Suprasil® CG

Source: Heraeus Quartz America, LLC.

 	High Purity Synthetic Fused Silica: Suprasil

Suprasil ® CG is a high purity synthetic fused silica manufactured by flame hydrolysis, ideal for DUV to UV/VIS commercial grade optics. This silica features a low bubble and inclusion content, typical UV transmission of k200: 3,5 x 10-3/ cm, stress induced birefringence, a well-established production process, and much more.

Suprasil ® CG at a glance:

Refractive Index and Dispersion:

  • nC = 1,45637 bei 656,3 nm
  • nd = 1,45846 bei 587,6 nm
  • nF = 1,46313 bei 486,1 nm
  • ng = 1,46669 bei 435,8 nm
  • n = 1,50855 bei 248 nm
  • At 20°C, 1 bar atmospheric pressure
  • Accuracy: ± 3 x 10 -5

Mechanical Properties:

  • Density (g/cm3) - 2,2
  • Mohs hardness - 5,5 ... 6,5
  • Micro hardness (N/mm2) - 8600... 9800
  • Knoop hardness (N/mm2) - 5800...6200
  • Moduls of elasticity at 20°C (N/mm2) - 7,0 ∙ 104
  • Modulus of torsion (N/mm2) - 3,0 ∙ 104
  • Poisson´s ratio - 0,17
  • Compressive strength (approx.) (N/mm2) - 1150
  • Tensile strength (approx.) (N/mm2) - 50
  • Bending strength (approx.) (N/mm2) - 67
  • Torsiona strength (approx.) (N/mm2) - 30
  • Sound velocity (m/s) - 5720

For information on thermal properties, minimum order lengths, and more, download the datasheet.