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LiF CRYSTAL
Lithium Flouride shows good optical properites. It can be used for windows, prisms and lenses in the vacuum UV,visibel and infrared where desired transmission is in the 0.11μm~7μm range. Because of its paricular lattice structure, LiF can also be used as X-ray diffraction devices.
We Can Offer
(1).Various optics for IR & VUV application, using our LiF crystal materials
(2).Optical element for X-ray diffraction devices
(3).Good quality LiF crystal blank materials
(4).OEM service
Capabilities
Maximum of Material Diameter: dia170mm
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) |
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Physical Properties | |
Density | 2.64 g/cm3 |
Melting Point | 845°C |
Thermal Conductivity | 11.3 Wm-1K-1 at 314K |
Thermal Expansion | 37 x 10-6 /°C |
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 |
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Chemical Properties | |
Solubility | 0.27 g/ 100g water at 18°C |
Molecular Weight | 25.94 |
Structure | Cubic Crystal |
Cleavage Plane | (100) |
About Our Company:
Beijing Glass Research Institute founded in 1960s, we are the state owned institute pioneered in optical materials.
Over 53 years, we have been growing accompanied by contributing to domestic and international projects in diverse areas of science and industry. Continued focus on innovation won us more than 140 awards.
Since 1966, our institute makes out the first optical fiber in China. Now we have the certification and permission on various national military or weapon projects.
From the 1st January 2013, our higher authoritiesreorganized the advantage resources and established the Scitlion Technology, all the staffs and businesses in Beijing Glass Research Institute are transferred into this new company. New company acts as the brother company of the Institute.
Now our company has 5 business units, they are
1.Crystal, which include FLUORIDE Crystal and Scintillation Crystal growth and processing;
2. Specialty fiber, which includes various silica fiber applied in UV , visible ,infrared range and polarization maintaining optical fiber,
3.Optical processing, like the Windows, Mirrors, Lenses, Prisms, Filters;
4.Special glass, mainly the sealing glass and lubricant glass;
5.Temperature components, such as Beckman thermometer, industrial thermistors.
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