透射鏡片材料 — Lithium Fluoride (LiF)氟化鋰
Transmission Range | 0.116-7.4 (Dicke 2mm) |
Refractive Index | 1.39126 @633 nm |
Reflection Loss | 2.65% @0.633 μm |
Residual Beam Wavelength | 26 μm (max. reflection) |
Density | 2.63905 g/cm3 |
Melting point | 848°C |
Molecular Weight | 25.94 |
Thermal Conductivity | 11.3 W/(m·K) @314 K |
Spec. Heat Capacity | 1562 J/(kg·K) |
Thermal Expansion | 37 · 10-6/ K @273…373K |
Hardness (Mohs) | 102 |
Young’s Modulus | 64.79 GPa |
Shear Modulus | 55.14 GPa |
Bulk Modulus | 62.03 GPa |
Fracture Modulus | 10.9 MPa |
Elastic Coefficient | C11?= 112; C12?= 45.6; C44?= 63.2 GPa |
Dielectric Constant | 9.0 @298K, f = 100 Hz…10 GHz |
Solubility in Water | 0.27g / 100g @18°C |
Crystal Structure | Single crystal, synthetic |
Crystal Type | Cubic, NaCl type structure, a= 4.02 ? |
Cleavage Planes | (100) |
Poisson Ratio | 0.22 |
Application | X-ray monochromator plates; Optical material for VUV applications |