| |
| Physical Properties | Original Value | Comments |
|---|
| Density | 3.55 g/cc |
| |
| Chemical Properties | Original Value | Comments |
|---|
| Acid Class, SR | 1.3 |
| Alkali Class, AR | 1.0 |
| Stain Resistance Class, FR | 0.00 |
| |
| Mechanical Properties | Original Value | Comments |
|---|
| Hardness, Knoop | 580 |
| Modulus of Elasticity | 97.0 GPa |
| Poissons Ratio | 0.216 |
| Shear Modulus | 39.9 GPa |
| |
| Thermal Properties | Original Value | Comments |
|---|
| CTE, linear | 8.70 µm/m-°C
@Temperature -30.0 - 70.0 °C |
| | 10.0 µm/m-°C
@Temperature 20.0 - 300 °C |
| Specific Heat Capacity | 0.670 J/g-°C |
| Thermal Conductivity | 0.997 W/m-K |
| Transformation Temperature, Tg | 598 °C |
| Softening Point | 700 °C |
| |
| Optical Properties | Original Value | Comments |
|---|
| Refractive Index | 1.784
@Wavelength 2325.45 nm |
| | 1.791
@Wavelength 1970.1 nm |
| | 1.799
@Wavelength 1529.6 nm |
| | 1.811
@Wavelength 1060 nm |
| | 1.812
@Wavelength 1014 nm |
| | 1.82
@Wavelength 852.1 nm |
| | 1.83
@Wavelength 706.5 nm |
| | 1.836
@Wavelength 656.3 nm |
| | 1.838
@Wavelength 643.8 nm |
| | 1.839
@Wavelength 632.8 nm |
| | 1.846
@Wavelength 587.6 nm |
| | 1.846
@Wavelength 589.3 nm |
| | 1.855
@Wavelength 546.1 nm |
| | 1.872
@Wavelength 486.1 nm |
| | 1.874
@Wavelength 480 nm |
| | 1.894
@Wavelength 435.8 nm |
| | 1.914
@Wavelength 404.7 nm |
| Abbe Number | 23.43 |
| | 23.62 |
| Optical Dispersion | 0.035841 |
| | 0.036489 |
| Transmission, Visible | 52 %
@Thickness 25.0 mm,
Wavelength 420 nm |
| | 67 %
@Thickness 25.0 mm,
Wavelength 436 nm |
| | 77 %
@Thickness 10.0 mm,
Wavelength 420 nm |
| | 80 %
@Thickness 25.0 mm,
Wavelength 460 nm |
| | 85.2 %
@Thickness 10.0 mm,
Wavelength 436 nm |
| | 89 %
@Thickness 25.0 mm,
Wavelength 500 nm |
| | 91.5 %
@Thickness 10.0 mm,
Wavelength 460 nm |
| | 95.4 %
@Thickness 10.0 mm,
Wavelength 500 nm |
| | 95.5 %
@Thickness 25.0 mm,
Wavelength 546 nm |
| | 96.9 %
@Thickness 25.0 mm,
Wavelength 660 nm |
| | 97.1 %
@Thickness 25.0 mm,
Wavelength 620 nm |
| | 97.1 %
@Thickness 25.0 mm,
Wavelength 580 nm |
| | 97.6 %
@Thickness 25.0 mm,
Wavelength 700 nm |
| | 98.2 %
@Thickness 10.0 mm,
Wavelength 546 nm |
| | 98.7 %
@Thickness 10.0 mm,
Wavelength 660 nm |
| | 98.8 %
@Thickness 10.0 mm,
Wavelength 620 nm |
| | 98.8 %
@Thickness 10.0 mm,
Wavelength 580 nm |
| | 99 %
@Thickness 10.0 mm,
Wavelength 700 nm |
| IR Transmittance | 73 %
@Thickness 25.0 mm,
Wavelength 2500 nm |
| | 79 %
@Thickness 25.0 mm,
Wavelength 2325 nm |
| | 88.2 %
@Thickness 10.0 mm,
Wavelength 2500 nm |
| | 91 %
@Thickness 10.0 mm,
Wavelength 2325 nm |
| | 96 %
@Thickness 25.0 mm,
Wavelength 1970 nm |
| | 98.4 %
@Thickness 10.0 mm,
Wavelength 1970 nm |
| | 99 %
@Thickness 25.0 mm,
Wavelength 1530 nm |
| | 99.1 %
@Thickness 25.0 mm,
Wavelength 1060 nm |
| | 99.6 %
@Thickness 10.0 mm,
Wavelength 1060 nm |
| | 99.6 %
@Thickness 10.0 mm,
Wavelength 1530 nm |
| UV Transmittance | 3.0 %
@Thickness 25.0 mm,
Wavelength 390 nm |
| | 5.0 %
@Thickness 10.0 mm,
Wavelength 380 nm |
| | 20 %
@Thickness 25.0 mm,
Wavelength 400 nm |
| | 26 %
@Thickness 10.0 mm,
Wavelength 390 nm |
| | 29 %
@Thickness 25.0 mm,
Wavelength 405 nm |
| | 52.5 %
@Thickness 10.0 mm,
Wavelength 400 nm |
| | 60.9 %
@Thickness 10.0 mm,
Wavelength 405 nm |
| |
| Descriptive Properties |
|---|
| Climatic resistance | 1 |
| Grindability | 3 |
| Phosphate resistance | 1.3 |
| Stress optical coefficient | 2.73 |
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