03 May Barium Fluoride (BaF2)
Posted at 21:35h
in BaF2
Barium Fluoride (BaF2) has a good transmission from UV till FIR, it is commonly used for various applications especially for IR spectroscopy.
| Specification | |
|---|---|
| Transmission wavelength | 150nm - 12500nm |
| Material | BaF₂ |
| Density (gr/cm³) | 4.89 |
| Dielectric constant | 7.33@2HMZ |
| Melting point (°C) | 1280 |
| Band gap (ev) | 26.89 |
| Thermal expansion coefficient (1/°C) | 1.81*10¯⁶ |
| Thermal Conductivity (J/k.m.s.) | 11.72 @286k |
| Water solubility (g/l) | 1.7 |
| Knoop hardness (Kg/mm²) | 82 |
| Young modulus (GPa) | 53.07 |
| Poisson ratio | 0.343 |
Barium Fluoride (BaF2)
prism
| Technical parameters | Commercial grade | Precision grade | High precision grade |
|---|---|---|---|
| Dimension range | 1-300mm | 2-300mm | 2-300mm |
| Dimension tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Thickness tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Angle tolerance | ±3' | ±30" | ±5" |
| Surface quality | 60-40 | 40-20 | 20-10 |
| Surface accuracy | 1.0λ | λ/10 | λ/20 |
| Bevelling | 0.1-0.5mmx45° | ||
| Substrate | BaF₂ | ||
Barium Fluoride (BaF2)
windows
| Technical parameter | Commercial grade | Precision grade | High precision grade |
|---|---|---|---|
| Dimension range | 1-600mm | 2-600mm | 2-600mm |
| Dimensioni tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Thickness tolerance | ±0.1mm | ±0.025mm | ±0.01mm |
| Angle tolerance | ±3' | ±1' | ±5" |
| Surface quality | 60-40 | 40-20 | 20-10 |
| Surface accuracy | 1.0λ | λ/10 | λ/20 |
| Bevelling | 0.1-0.5mmx45° | ||
| Substrate | CaF₂ | ||
Standard windows
| Diameter(mm) | Thickness (mm) | Coating | Diameter (mm) | Thickness (mm) |
|---|---|---|---|---|
| 10 | 1.0 | On demand | 75 | 3.0 |
| 12.5 | 1.0 | On demand | 75 | 5.0 |
| 20 | 2.0 | On demand | 76.2 | 6.0 |
| 25 | 3.0 | On demand | 80 | 8 |
| 30 | 3.0 | On demand | 90 | 10 |
| 38.1 | 3.0 | On demand | 100 | 10 |
| 40 | 4.0 | On demand | 150 | 15 |
| 50 | 3.0 | On demand | 180 | 18 |
| 50.8 | 3.0 | On demand | 200 | 20 |
| 63.5 | 5.0 | On demand | 300 | 35 |