Barium Fluoride - BaF2
lenses, windows, mirrors, filters and prisms
Click here to download PDF version of this page.Used for optical windows, prisms and lenses transmitting from the vacuum ultraviolet into the Infrared. BaF² is also a scintillation material that exhibits one of the fastest known decay constants among inorganic materials.
Typical Applications: UV, Visible and Infrared imaging systems, scintillators, IR cut-off filters.
| Transmission Range | 0.15 - 12.5 microns |
| Crystal Structure | Fluorite |
| Cleavage Plane | 111 |
| Colour | Colourless |
| Density | 4.884 (20°) |
| Melting Point (°) | 1280 |
| Reflection Loss | 6.0% (4µ) for 2 surfaces |
| Solubility index | 0.17gm/100gm water at 23 °C |
| Hardness (Knoop) | 82.0/500 gm indenter |
| Thermal Conductivity (cal/cm sec°C) | 11.72 Wm-1°K-1 at 13 °C |
| Thermal Expansion coefficient (/°C) | 18.1x10-6/°C at -100° to +120°C |
Whilst every effort has been made to verify the data provided, no responsibility can be accepted for its accuracy