- Product Name: LiF
- Maximum of Material Diameter:Φ170mm
- Clear Aperture:85%
- Surface Flatness:λ/4 at 633nm
- Surface Quality:20/10
Product overview
Lithium Fluoride crystal is used as window, lens for the 105nm to 6μm. And also can be used as the optical element in X-ray diffraction devices.Scitlion is able to offer
Various optics for IR & VUV application, using our LiF crystal materials
Optical element for X-ray diffraction devices
Good quality LiF crystal blank materials
OEM service for good quality LiF crystals
Orientation：<100>、<110>、 <111>
LiF Crystal Properties:
|
Optical Properties |
|
|
Transmission Range |
105 nm to 6 μm |
|
Transmittance |
>90% at 300 nm to 4.5 μm |
|
Refractive Index |
1.3733at 2.5 μm; 1.6240 at 121 nm |
|
Reflection Loss |
4.4% at 4 μm (both surfaces) |
|
Physical Properties |
|
|
Density |
2.64 g/cm3 |
|
Melting Point |
845℃ |
|
Thermal Conductivity |
11.3 Wm-1K-1 at 314K |
|
Thermal Expansion |
37 x 10-6 /℃ |
|
Mohs Hardness |
113 with 600g indenter (kg/mm2) |
|
Specific Heat Capacity |
1562 J/(kg.k) |
|
Dielectric Constant |
9.0 at 100 Hz |
|
Youngs Modulus (E) |
64.79 GPa |
|
Shear Modulus (G) |
55.14 GPa |
|
Bulk Modulus (K) |
62.03 GPa |
|
Rupture Modulus |
10.8 MPa |
|
Elastic Coefficient |
C11=112; C12=45.6; C44=63.2 |
|
Chemical Properties |
|
|
Solubility |
0.27 g/ 100g water at 18℃ |
|
Molecular Weight |
25.94 |
|
Structure |
Cubic Crystal |
|
Cleavage Plane |
(100) |
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