| |
| Physical Properties | Original Value | Comments |
|---|
| Density | 4.41 g/cc |
| |
| Chemical Properties | Original Value | Comments |
|---|
| Acid Class, SR | 2.0 |
| Alkali Class, AR | 1.0 |
| Stain Resistance Class, FR | 0.00 |
| |
| Mechanical Properties | Original Value | Comments |
|---|
| Hardness, Knoop | 515 |
| Modulus of Elasticity | 109 GPa |
| Poissons Ratio | 0.288 |
| Shear Modulus | 42.3 GPa |
| |
| Thermal Properties | Original Value | Comments |
|---|
| CTE, linear | 7.40 µm/m-°C
@Temperature -30.0 - 70.0 °C |
| | 8.40 µm/m-°C
@Temperature 20.0 - 300 °C |
| Specific Heat Capacity | 0.530 J/g-°C |
| Thermal Conductivity | 0.790 W/m-K |
| Transformation Temperature, Tg | 683 °C |
| Softening Point | 817 °C |
| Annealing Point | 700 °C |
| |
| Optical Properties | Original Value | Comments |
|---|
| Refractive Index | 1.80
@Wavelength 2323.4 nm |
| | 1.80
@Wavelength 589.3 nm |
| | 1.806
@Wavelength 1970.1 nm |
| | 1.813
@Wavelength 1529.6 nm |
| | 1.822
@Wavelength 1060 nm |
| | 1.824
@Wavelength 1014 nm |
| | 1.829
@Wavelength 852.1 nm |
| | 1.838
@Wavelength 706.5 nm |
| | 1.842
@Wavelength 656.3 nm |
| | 1.843
@Wavelength 643.8 nm |
| | 1.844
@Wavelength 632.8 nm |
| | 1.85
@Wavelength 587.6 nm |
| | 1.856
@Wavelength 546.1 nm |
| | 1.868
@Wavelength 486.1 nm |
| | 1.87
@Wavelength 480 nm |
| | 1.884
@Wavelength 435.8 nm |
| | 1.898
@Wavelength 404.7 nm |
| Abbe Number | 31.93 |
| | 32.17 |
| Optical Dispersion | 0.02643 |
| | 0.026827 |
| Transmission, Visible | 80.1 %
@Thickness 25.0 mm,
Wavelength 420 nm |
| | 85.5 %
@Thickness 25.0 mm,
Wavelength 436 nm |
| | 89.8 %
@Thickness 25.0 mm,
Wavelength 460 nm |
| | 91.5 %
@Thickness 10.0 mm,
Wavelength 420 nm |
| | 93.9 %
@Thickness 10.0 mm,
Wavelength 436 nm |
| | 94.5 %
@Thickness 25.0 mm,
Wavelength 500 nm |
| | 95.8 %
@Thickness 10.0 mm,
Wavelength 460 nm |
| | 97.2 %
@Thickness 25.0 mm,
Wavelength 546 nm |
| | 97.8 %
@Thickness 10.0 mm,
Wavelength 500 nm |
| | 97.8 %
@Thickness 25.0 mm,
Wavelength 580 nm |
| | 97.9 %
@Thickness 25.0 mm,
Wavelength 620 nm |
| | 98.1 %
@Thickness 25.0 mm,
Wavelength 660 nm |
| | 98.1 %
@Thickness 25.0 mm,
Wavelength 700 nm |
| | 98.9 %
@Thickness 10.0 mm,
Wavelength 546 nm |
| | 99.1 %
@Thickness 10.0 mm,
Wavelength 580 nm |
| | 99.2 %
@Thickness 10.0 mm,
Wavelength 660 nm |
| | 99.2 %
@Thickness 10.0 mm,
Wavelength 620 nm |
| | 99.4 %
@Thickness 10.0 mm,
Wavelength 700 nm |
| IR Transmittance | 59.8 %
@Thickness 25.0 mm,
Wavelength 2500 nm |
| | 71.2 %
@Thickness 25.0 mm,
Wavelength 2325 nm |
| | 81.4 %
@Thickness 10.0 mm,
Wavelength 2500 nm |
| | 87.3 %
@Thickness 10.0 mm,
Wavelength 2325 nm |
| | 91.9 %
@Thickness 25.0 mm,
Wavelength 1970 nm |
| | 96.7 %
@Thickness 10.0 mm,
Wavelength 1970 nm |
| | 98.6 %
@Thickness 25.0 mm,
Wavelength 1530 nm |
| | 99.4 %
@Thickness 10.0 mm,
Wavelength 1530 nm |
| | 99.4 %
@Thickness 25.0 mm,
Wavelength 1060 nm |
| | 99.8 %
@Thickness 10.0 mm,
Wavelength 1060 nm |
| UV Transmittance | 0.50 %
@Thickness 10.0 mm,
Wavelength 350 nm |
| | 3.0 %
@Thickness 25.0 mm,
Wavelength 365 nm |
| | 9.5 %
@Thickness 25.0 mm,
Wavelength 370 nm |
| | 24.6 %
@Thickness 10.0 mm,
Wavelength 365 nm |
| | 31.4 %
@Thickness 25.0 mm,
Wavelength 380 nm |
| | 39 %
@Thickness 10.0 mm,
Wavelength 370 nm |
| | 51.3 %
@Thickness 25.0 mm,
Wavelength 390 nm |
| | 62.9 %
@Thickness 10.0 mm,
Wavelength 380 nm |
| | 65.3 %
@Thickness 25.0 mm,
Wavelength 400 nm |
| | 70.3 %
@Thickness 25.0 mm,
Wavelength 405 nm |
| | 76.6 %
@Thickness 10.0 mm,
Wavelength 390 nm |
| | 84.3 %
@Thickness 10.0 mm,
Wavelength 400 nm |
| | 86.9 %
@Thickness 10.0 mm,
Wavelength 405 nm |
| |
| Descriptive Properties |
|---|
| Climatic resistance | 1 |
| Grindability | 120 |
| Phosphate resistance | 1 |
| Stress optical coefficient | 1.72 |
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