PELCO® Quartz Glass Substrate Discs


  • The PELCO® Quartz Glass Discs or Wafers are made from high quality fused quartz (glassy, amorphous material - not a single crystal) ground and optical-grade clear polished on both sides. The discs are ideal as substrates for thin film research and are also suitable for optical research. These quartz wafers have excellent chemical resistance against a wide variety of solvents. They have also excellent heat resistance with high dimensional stability over a wide temperature range. Transparency is provided for 0.19 to 4.2µm with very low absorbance in the 0.26 to 2.6µm range. Surface flatness is ±1 degree with 60/40 scratch/dig specifications. Available in sizes from 1" to 4" diameter with thickness of 1/16" and 1/8".

    16001-1 - Quartz Disc, Ø25.4mm x 1.6mm (Ø1" x 1/16"), polished

    16001-2 - Quartz Disc, Ø25.4mm x 3.2mm (Ø1" x 1/8"), polished

    16002-1 - Quartz Disc, Ø50.8mm x 1.6mm (Ø2" x 1/16"), polished

    16002-2 - Quartz Disc, Ø50.8mm x 3.2mm (Ø2" x 1/8"), polished

    16003-1 - Quartz Disc, Ø76.2mm x 1.6mm (Ø3" x 1/16"), polished

    16003-2 - Quartz Disc, Ø76.2mm x 3.2mm (Ø3" x 1/8"), polished

    16004-1 - Quartz Disc, Ø101.6mm x 1.6mm (Ø4" x 1/16"), polished

    16004-2 - Quartz Disc, Ø101.6mm x 3.2mm (Ø4" x 1/8"), polished

    Technical Information about GE 124 Quartz Material

    The fused quartz material used for our Quartz Discs, Quartz Microscope Slides, and Quartz Cover Slips is a high quality, high purity GE124 quartz. This quartz material is well documented and used in many microscopy applications. Fused quartz is an amorphous, glassy material.

    Typical Trace Element Composition (ppm by weight)
    Analysis via Direct Reading Spectrometer
    Type Al As B Ca Cd Cr Cu Fe K Li Mg Mn Na Ni P Sb Ti Zr *OH
    GE 124 14 <0.002 <0.2 0.4 <0.01 <0.05 0.05 0.2 0.6 0.6 0.1 <0.05 0.7 <0.1 <0.2 <0.003 1.1 0.8 <5

    Typical Physical Properties
    Density 2.2 x 103 kg/m3
    Refractive index 1.4585
    Softening point 1683°C
    Annealing point 1215°C
    Strain point 1120°C
    Hardness 5.5 - 6.5 Mohs Scale
    Compressive Strength 1.1 x 109 Pa (160,000 psi)
    Tensil strength 4.8 x 107 Pa (7000 psi)
    Electrical resistivity @350°C: 7 x 107 ohm/cm
    Young's Modulus 7.2 x 1010 Pa (10.5 x 106 psi)
    Thermal Expansion Coefficient 5.5 x 10-7 mm/mm.°C
    Thermal Conductivity 1.4 w/m.°C

    Optical Transmission
    The curve shows the typical optical transmission curve with the absorption edges for GE 124 from the UV through visible into the infra-red range. In the typical 250-290nm range for UV microscopy applications the material exhibits excellent transmittance.

    Graphs Compliments of Supplier