Barium fluorite is a material with excellent optical properties in the infrared region of the electromagnetic spectrum. It is often used as lenses, windows, or other optical components in infrared optical systems.
Barium fluoride has high transmittance and low absorption in the infrared region of the spectrum, making it an ideal choice for manufacturing infrared optical components. It can effectively transmit infrared radiation without causing excessive energy loss. Additionally, it has a high refractive index and high dispersion performance, which makes it superior in imaging and spectral analysis.
When manufacturing infrared optical components, precision machining techniques such as grinding and polishing can be used to achieve the desired shape and optical performance. Additionally, surface modification and functional enhancement can be achieved through coatings and other processing methods.
Performance Parameter
| Optical Properties | |
| Transmission Range | 0.15-14μm |
| Transmittance | >94%@0.35nm-10.8μm |
| Refractive Index | 1.462@2.58μm 1.45@5μm |
| Reflection Loss | 6.8%@2.58μm(both surfaces) 6.5%@5μm(both surfaces) 5.3%@10.35μm(both surfaces) |
| Absorption Coefficienet | 3.2×10-4@6μm |
| Structure | Cubic Crystal System |
| Cleavage Planes | <111> |
| Physical Properties | |
| Density[g/cm3] | 4.89 |
| Melting Point [℃] | 1386 |
| Thermal Conductivity [W/(m×K)] | 11.72 @ 286K |
| Thermal Expansion Coefficient [10-6/K] | 18.1 @ 273K |
| N努氏硬度Knoop Hardness [kg/mm2] | 82 |
| Specific Heat Capacity [J/(kg×K)] | 410 |
| Dielectric Constant | 7.33 @ 1 MHz |
| Young's Modulus (E) [GPa] | 53.07 |
| Shear Modulus(G) [GPa] | 25.4 |
| Volume modulus Bulk modulus(K) [GPa] | 56.4 |
| Poisson Coefficient | 0.343 |
| Chemical Properties | |
| Solubility / g/L | 1.7g @ 20℃ |
| Molecular Weight / g/mol | 175.3238 |
