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| Barium Fluoride (BaF2) |
BaF2 crystals are transparent in wide spectrum band. The product finds use in windows, lenses of special types of objectives, as mirrors substrate in optical systems operating in UV and IR spectrum band.
Safetyri Optical welcome customer send us your drawing ,specification and the raw material as well,we could provide high precision polished BaF2 as customer request.
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Transmittance Property (Reference Data)
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| Refractive Index |
Wevelength (µm) |
n |
Wevelength (µm) |
n |
0.26 |
3.49 |
5.14 |
3.43 |
0.30 |
3.48 |
6.50 |
1.44 |
0.36 |
3.47 |
8.00 |
1.43 |
0.48 |
3.46 |
8.60 |
1.42 |
0.85 |
3.45 |
9.20 |
1.41 |
3.24 |
3.44 |
9.80 |
1.40 |
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| Optical property |
| Crystal Class |
Cubic |
| Density at 20°C ,g/cm3 |
4.89 |
Thermal Conductivity W/(mk)at 286K |
11.7 |
| Thermal Expansion 1K at 300K |
19.6X10-6 |
| Lattice Constant,Å |
6.196 |
| Molecular Weight |
175.36 |
| Dielectric Constant for 2X106Hz |
7.33 |
| Melting Point,K |
1550 |
Specific Heat,cal/(gK)at 274K
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0.096 |
| Knoop Hardness,kg/mm2 |
82 |
| Young's Modulus,GPa |
53.05 |
| Shear Modulus,Gpa |
25.4 |
| Bluk Modulus,GPa |
56.4 |
| Poisson's Ratio |
0.343 |
| Bandgap,eV |
9.1 |
| Apparent Elastic Limited MPa |
26.89 |
| Water Solubility g/100g H2O |
0.17 |
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