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Taixing Hechen Crystal Technology Co., Ltd
Barium fluoride (BaF2)
NegotiableUpdate on 05/19
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Overview
Barium fluoride (BaF2) has an optical transmittance of nearly 90% in the spectral range of 200-9500nm. Commonly used in low-temperature refrigeration imaging systems, aerospace optical systems, and laser optical systems for lenses, beam splitters, filters, prisms, and windows. This material has a certain degree of water solubility and is only suitable for use in dry environments.
Product Details
Barium fluoride (BaF2)There is an optical transmittance of nearly 90% in the spectral range of 200-9500nm. Commonly used in low-temperature refrigeration imaging systems, aerospace optical systems, and laser optical systems for lenses, beam splitters, filters, prisms, and windows. This material has a certain degree of water solubility and is only suitable for use in dry environments.
Physicochemical properties
| Density (g/cm3) |
4.89 |
| Melting point (℃) | 1280 |
| Thermal expansion coefficient (1/℃) | 1.81*10^ -6@-100 ……+200 |
| Purity (%) | 99.9996 |
| Modulus of elasticity (GPa) | 56.4 |
| Shear modulus (GPa) | 25.4 |
| Thermal conductivity (J/k.m.s) | 11.72@286K |
| Heat capacity (J/g.k) |
0.410@300K |
| Knoop hardness (kg/mm2) |
82 |
| Water solubility (g/l) | 1.7 |
| Young's modulus (GPa) | 53.07 |
| Poisson's ratio | 0.343 |
Variation of refractive index with wavelength
| Wavelength (nm) |
Refractive index (n) | Wavelength (nm) | Refractive index (n) |
| 260 | 1.51 | 5140 |
1.45 |
| 300 | 1.50 | 6500 | 1.44 |
| 360 |
1.49 |
8000 | 1.43 |
| 480 | 1.48 |
8600 |
1.42 |
| 850 |
1.47 |
9200 | 1.41 |
| 3240 | 1.46 |
9800 | 1.40 |
