Products BaF2（Barium Fluoride ）
Characteristic
- Barium fluoride exhibits a wide transmittance wavelength range of up to 13 μm in the infrared region, the widest among fluoride crystals.
- The crystalline material is physically and chemically stable, and is resistant to water and chemicals.
Transmittance
Physical Properties
| Basic Physical Properties | |
|---|---|
| Name of crystal material | BaF2 |
| Transmittance wavelength range (µm) | 0.15～13 |
| Color | Colorless |
| Density (g/cc) | 4.83 |
| Melting point (℃) | 1280 |
| Solubility (g/100gH2O) (30℃) | 0.162 |
| Molecular weight | 175.36 |
| Crystal system | Cubic |
| Crystal structure | Fluorite type |
| Cleavage plane | ｛１１１｝ |
| Thermal Properties | |
|---|---|
| Thermal Expansion α (/℃)（0℃） |
18×10-6 |
| Thermal Conductivity λ (cal/cm･sec･℃) |
2.8×10-2 |
| Specific Heat Cp (cal/g･℃) |
0.098 |
| Mechanical Properties | |
|---|---|
| Knoop Hardness Hk | 82 |
| Young’s Modulus E (GPa) |
66.1 |
| Modulus of Rigidity G (GPa) |
25.4 |
| Poisson Ratio | 0.343 |
Application
Infrared lens
Infrared measuring device
Pamphlet Download（PDF）
