# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
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REFERENCES: |
    <a href="https://refractiveindex.info/download/data/2017/schott-infrared-chalcogenide-glasses-irg-22-english-us-11052017.pdf">SCHOTT Infrared Chalcogenide Glasses - IRG 22 Product flyer (Version Aptil 2017)</a>
DATA:
  - type: formula 2
    wavelength_range: 1.0 12
    coefficients: 2.4834 2.8203 0.1352 0.9773 1420.7
  - type: tabulated k
    data: |
        0.8 4.1386E-06
        1.0 7.1560E-07
        1.5 4.0055E-07
        2.0 4.0295E-07
        2.5 5.0368E-07
        3.0 4.0933E-07
        3.5 4.2095E-07
        4.0 4.1652E-07
        4.5 1.3501E-06
        5.0 1.2119E-06
        5.5 2.1939E-07
        6.0 1.4345E-07
        6.5 1.5541E-07
        7.0 1.6736E-07
        7.5 4.7938E-07
        8.0 3.1315E-06
        8.5 1.0223E-06
        9.0 8.6463E-07
        9.5 9.8923E-07
        10.0 9.6071E-07
        10.5 1.8588E-06
        11.0 5.6961E-06
        11.5 2.2738E-05
        12.0 8.7023E-05
        12.5 1.8354E-04
        13.0 1.8392E-04
        13.5 9.0667E-05
        14.0 4.7651E-05
        14.5 4.0662E-05
        15.0 5.2713E-05
        15.5 8.5743E-05
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.41e-05 0 0 1.68e-07 0 9.96e-01
    density:
      - value: 4410
    thermal_expansion:
      - temperature_range: 293 373
        value: 12.5e-06
    specific_heat:
      - value: 330
    thermal_conductivity:
      - value: 0.24
    transformation_temperature:
      - value: 641
    hardness:
      - type: Knoop
        value: 1.41e9
    fracture_toughness:
      - value: 0.55e6
    shear_modulus:
      - value: 8.9e9
    youngs_modulus:
      - value: 21.5e9