Barium fluoride(BaF2)
ICC has barium fluoride for IR(high transparency)/ flicker (low background) applications in high-energy physics, multispectral cameras, infrared thermometry and thermal imaging.
It has the advantages of wide spectrum, large supply and low price. It can be used as windows, flat films, domes, lenses, prisms, etc., and has a wide range of applications in FTIR, LWIR, hyperspectral cameras and other fields.
Applications :
| lens | The ball cap | FTIR attachment | The IR light source | Focusing lens | Coated specimens |
Product Advantage :
Barium fluoride material:
Size: Single crystal is less than 120mm, the size available for mass production is D3-100mm, and the orientation size is less than D100mm;
Polycrystalline is smaller than D170 mm;
Crystal direction: 100, 111, 200, etc.
Product Parameters :
| The optical properties | |
|
Through the range |
0.15 – 14mm |
| transmittance |
>94% @ 0.35-10.8mm |
| The refractive index |
1.4624 @ 2.58mm 1.45 @ 5μm |
| Reflection loss |
6.8% @ 2.58mm (双面） 6.5% @ 5 μm (双面） 5.3% @ 10.35mm (双面） |
| Absorption coefficient[cm-1] |
3.2 x 10-4 @ 6mm |
| Physical properties | |
| Density[g/cm3] |
4.89 |
| Melting point[℃] |
1386 |
| Thermal conductivity[W/(m×K)] |
11.72 @ 286K |
| Coefficient of thermal expansion[10-6/K] |
18.1 @ 273K |
| Knoop hardness[kg/mm2] |
82 |
| Specific heat capacity[J/(kg×K)] |
410 |
| Dielectric constant |
7.33 @ 1MHz |
| Apparent elastic limit[MPa] |
26.9 (300 psi) |
| The poisson coefficient |
0.343 |
| The chemical characteristics | |
|
solubility |
1.7 @ 23℃ |
|
The molecular weight |
175.3238 |
|
structure |
Cubic crystal system |
| Dissociative side |
(111) |
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